Color ink jet printer EPSON Stylus Color 440/640/740 ® 4009667
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PRECAUTIONS Precautionary notations throughout the text are categorized relative to 1)Personal injury and 2) damage to equipment. DANGER Signals a precaution which, if ignored, could result in serious or fatal personal injury. Great caution should be exercised in performing procedures preceded by DANGER Headings. WARNING Signals a precaution which, if ignored, could result in damage to equipment.
PREFACE This manual describes basic functions, theory of electrical and mechanical operations, maintenance and repair procedures of Stylus Color 440/640/ 740. The instructions and procedures included herein are intended for the experienced repair technicians, and attention should be given to the precautions on the preceding page. The chapters are organized as follows: CHAPTER 1. PRODUCT DESCRIPTIONS Provides a general overview and specifications of the product. CHAPTER 2.
REVISION STATUS Rev. Date Page(s) A 1998/07/15 All B 1998/09/30 Page 188 Pages 195 to 212 Contents First Release The exploded diagrams and part list for the Stylus Color 740 has been added.
Product Description Features .................................................................................................. 9 Specifications ........................................................................................ Printing Specification........................................................................ Paper Specification .......................................................................... Printing Area...........................................................................
Disassembly Procedures..................................................................... Removing the Housing ................................................................... Removing the Board Assembly ...................................................... Removing the Operation Panel ...................................................... Disassembling the Printer Mechanism ........................................... 104 105 106 108 109 Adjustment Overview...........................................
PRODUCT DESCRIPTION
EPSON Stylus Color 440/640/740 1.1 FEATURES EPSON Stylus Color 440/640/740 are designed for PC users at home and low price for hat high performance. Also, Stylus Color 440 printer has the same high color print quality (720 X 720dpi) as Stylus ProXL, and Stylus Color 640,740 have the same high color print quality (1440 X 720) as Stylus Color 600 and Stylus Pro 5000.
EPSON Stylus Color 440/640/740 Revision A Table 1-1.
EPSON Stylus Color 440/640/740 Revision A 1.2 Specifications Table 1-3. Graphic Mode Speed This section describes each specification for Stylus Color 440, 640, and 740. Horizontal Resolution Printable Area Available dot CR Speed 180 dpi 8.26 1488 20 IPS 360 dpi 8.26 2976 20 IPS 720 dpi 8.26 5952 20 IPS 1.2.1 Printing Specification Print method On demand ink jet (MACH type.
EPSON Stylus Color 440/640/740 Revision A #1 90DPI #2 Y1 M1 C1 Y2 M2 C2 Y3 M3 C3 180DPI #3 #4 #1 90DPI #2 #4 #5 #5 #6 2.2578 mm 10.16 mm 7.9022 mm Y1 M1 C1 #23 Y2 M2 C2 #25 Y3 M3 C3 #27 Y4 M4 C4 #29 Y19 M 19 C19 #59 #6 2.2578 mm 2.2578 mm 10.16 mm 7.9022 mm 2.
EPSON Stylus Color 440/640/740 Revision A 32/360" 32/360" 32/360" 112/360" 112/360" #1 #1 #1 #2 #2 #2 #4 #3 #3 #3 #7 #4 #4 #4 #10 #1 #2 #3 #6 #9 #11 #5 #5 #5 #13 #6 #6 #6 #16 #7 #7 #7 #19 #8 #8 #8 #22 #12 #14 #15 #17 #9 #21 #25 #23 #10 #10 #26 #28 #29 #11 #11 #11 #29 #31 #32 #32 #47 #47 #47 1/6 inches or programmable at 1/360 inches (only for Stylus Color 440) 1/6, 1/8 inches or programmable at 1/360 inches (for Stylus Color 640,740) Pa
EPSON Stylus Color 440/640/740 Paper holding capacity of Hopper Size: Index card ∼Legal Thickness: Less than 8mm Paper capacity: 100 Cut sheets 10 Envelopes 65 Coated papers (360 dpi) 65 Coated papers (720 dpi) 20 Glossy papers, Photo Paper 10 Transparent sheets 30 Index cards 1 Panoramic Photo Paper, Iron-On Cool Peel Transfer Paper, and Photo Sticks, Glossy Film, Self Adhesive Character tables: Revision A Bulgaria,ic),PC774,Estonia,ISO8859-2,PC866-LAT,PC866UKR, PC AR864, PC APTEC, PC
EPSON Stylus Color 440/640/740 Revision A 1.2.2 Paper Specification 1.2.2.2 Transparency, Glossy Paper This section describes the printable area and types of paper that can be used in this printer. [Size] A4: Letter: [Width 210mm (8.3”) x Length 297mm (11.7”)] [Width 216mm (8.5”) x Length 279mm (11.0”)] 1.2.2.1 Cut Sheet [Thickness] [Size] 0.075mm(0.003”) - 0.085mm(0.0033”) A4: [Width 210mm (8.3”) x Length 297mm (11.7”)] Letter: [Width 216mm (8.5”) x Length 279mm (11.0”)] B5: [Width 182mm (7.
EPSON Stylus Color 440/640/740 Revision A 1.2.2.4 Index Card [Size] A6 Index card: Width 105mm (4.1”) x Length 148mm (5.8”) A5 Index card: Width 148mm (5.8”) x Length 210mm (8.3”) 5x8” Index card: Width 127mm (5.0” x Length 203mm (8.0”) 10x8” Index card: Width 127mm (5.0”) x Length 203mm (8.0”) [Thickness] Chapter 1 : Less than 0.23mm (0.
EPSON Stylus Color 440/640/740 Revision A 1.2.3 Printing Area [Cut Sheet] See Figure 1-4 in the right column and the tables in the following page for the printable areas for Raster Graphics mode and Character mode. LM PW RM TM NOTE: Character mode is only suitable for Stylus Color 740. Printable Area PL BM Figure 1-4.
EPSON Stylus Color 440/640/740 Revision A Table 1-4. Raster Graphics Mode (for 3 models) Paper Size PW PL LM RM TM BM/min. A4 210 mm (8.3”) 297 mm (11.7”) 3 mm (0.12”) 3 mm (0.12”) 3 mm (0.12”) 14 mm(0.54”) 3 mm (0.12”) Letter 216 mm (8.5”) 279 mm (11.0”) 3 mm (0.12”) 9 mm (0.35”) 3 mm (0.12”) 14 mm (0.54”) 3 mm (0.12”) B5 182 mm (7.2”) 257 mm (10.1”) 3 mm (0.12”) 3 mm (0.12”) 3 mm (0.12”) 14 mm (0.54”) 3 mm (0.12”) Legal 216 mm (8.5”) 356 mm (14.0”) 3 mm (0.12”) 9 mm (0.
EPSON Stylus Color 440/640/740 Revision A 1.2.3.1 Adjust Lever Setting [Envelope] Table 1-6 and Figure 1-5 show the printable area for envelopes. Table 1-6. Envelopes Margin Paper Size LM RM TM BM/min. #10 28 mm (1.10”) 3 mm (0.12”) 3 mm (0.12”) 14 mm (0.54”) 3 mm (0.12”) DL 7 mm (0.28”) 3 mm (0.12”) 3 mm (0.12”) 14 mm (0.54”) 3 mm (0.12”) C6 3 mm (0.12”) 3 mm (0.12”) 3 mm (0.12”) 14 mm (0.54”) 3 mm (0.
EPSON Stylus Color 440/640/740 Revision A 1.2.4 Ink Cartridge Specifications [Black Ink Cartridge] Table 1-8.
EPSON Stylus Color 440/640/740 Revision A [Color Ink Cartridge] Table 1-9.
EPSON Stylus Color 440/640/740 Revision A 1.2.
EPSON Stylus Color 440/640/740 Revision A 1.2.6 Electric Specification 1.2.
EPSON Stylus Color 440/640/740 Revision A 1.2.9 Acoustic Noise Stylus Color 440: Approximately 45 dB Stylus Color 640,740: Approximately 47 dB 1.2.10 CE Marking [220∼240 V version] Low Voltage Directive 73/23/EEC:EN60950 EMC Directive 89/336/EEC :EN55022 Class B :EN61000-3-2 :EN61000-3-3 :EN50082-1 :IEC801-2 :IEC801-3 :IEC801-4 1.2.
EPSON Stylus Color 440/640/740 1.3 Interface This printer provides parallel interface as standard. 1.3.
EPSON Stylus Color 440/640/740 Revision A Table 1-10. Parallel I/F Forward Channel Pin No. Signal Name Return GND Pin In/Out 1 /STROBE 19 I The strobe pulse. Read-in of data is performed at the falling edge of this pulse. Functional Description 2-9 DATA0-7 20-27 I The DATA0 through DATA7 signals represent data bits 0 to 7, respectively. Each signal is at high level when data is logical 1 and low level when data is logical 0.
EPSON Stylus Color 440/640/740 1.3.2 Parallel Interface (Reverse Channel) IEEE-1284 nibble mode Refer to the IEEE-1284 specification Refer to the IEEE-1284 specification Refer to the IEEE-1284 specification IEEE-1284 level 1 device TTL compatible level 57-30360 (amphenol) or equivalent [Adaptable connector] The printer responds affirmatively when [Extensibility request] the extensibility request values are 00H or 04H, that mean; 00H: Request Nibble Mode Reverse Channel Transfer.
EPSON Stylus Color 440/640/740 Revision A Table 1-12. Parallel I/F Reverse Channel Pin No. 1 Signal Name HostClk 2-9 Data0-7 10 PrtClk Return GND Pin In/Out 19 I Host clock signal. 20-27 I The DATA0 through DATA7 signals represent data bits 0 to7, respectively. Each signal is at high level when data is logical 1 and low level when data is logical 0. These signals are used to transfer the 1284 extensibility request values to the printer. 28 O Printer clock signal.
EPSON Stylus Color 440/640/740 Revision A The following are the points to note when using the parallel Interface. NOTE 1:“Return GND pin” in the table means twist pair return and is used for all control signals except for Logic H,+5V, Chassis, GND and NC. In this twist pair return, returning side is connected to GND (16,33, 19-30 pin) for twist pair return. Also, these cables are shielded wires and it is effective to connect to each chassis GND in the PC and printer for electrostatic noise.
EPSON Stylus Color 440/640/740 Revision A 1.3.2.2 Auto Interface Selection (for Stylus Color 640, 740) Table 1-14. Typical Tack Timing Parallel I/F Mode Typical Tack Timing High speed 2us (for Stylus Color 440,640) 1us (only for Stylus Color 740) Normal speed 4us (for Stylus Color 440,640) 3us (only for Stylus Color 740) Table 1-15. Signal level for TTL (IEEE-1284 level 1 device) Parameters Minimum Maximum COndition VOH* --- 5.5V VOL* -0.5V --- IOH* --- 0.32mA VOH = 2.
EPSON Stylus Color 440/640/740 Revision A 1.3.3 Serial Interface (for Stylus Color 640, 740) 1.3.3.1 USB Interface (Only for Stylus Color 740) [Standard] [Synchronization] [Bit Rate] [Handshaking] [Word Format] [Standard] Universal Serial Bus Specifications Rev. 1.0 Universal Serial Bus Device Class Definition for Printing Device Version 1.0 [Bit Rate] 12 M bps [Data Encoding] NRZI [Connector] USB Series B [Recommended Cable Length] 2 meters Based on RS-423 Synchronous Approx.
EPSON Stylus Color 440/640/740 Revision A 1.4 Control Panel 1.4.1 Indicators (LEDs) Since Stylus Color 440, 640, 740 does not require many buttons since printer driver can start various settings and motions. Therefore, there are only 2 non-lock type push switches, 1 lock type push switch and 4 LEDs. Figure 1-11 shows control panel of Stylus Color 440/640/740. Power LED Paper Out LED Ink Out(Bk)LED Ink Out(CMY)LED (1) Power Lights when the operate switch is “ON”, and AC power is supplied.
EPSON Stylus Color 440/640/740 Revision A 1.4.2 Panel Functions Table 1-21. EEPROM Reset Switch Refer to Table 1-19 to Table 1-21. Cleaning Table 1-19. Panel Functions Switch Function Load/Eject (within 2 sec.) 1. Loads or ejects a paper. 2. When the carriage is on the I/C replacement position, return the carriage to the capping position. Load/Eject (for 2 sec.) 1. Starts the I/C replacement sequence. Cleaning (for 2 sec.) 1. Starts the printhead cleaning sequence. 2.
EPSON Stylus Color 440/640/740 Revision A 1.4.3 Printer Condition and Panel Status Table 1-22 shows printer condition and panel status. Since the table shows various error status and also indicates printer status, it enables you to find appropriate repair ways. Table 1-22.
EPSON Stylus Color 440/640/740 1.5 Error Status When following status occur, the printer goes to the error status and stops taking data, setting the /ERROR signal in the interface as “Low”, and Busy signal as “High”. At this time, the printer goes to non printable status. Refer to Section 1.4.3 for more details of LED Panel indicators during the various error status. 1.5.1 Ink Out When the printer runs out the most part of the ink of any one color, it warns ink-low and keeps printing.
EPSON Stylus Color 440/640/740 Revision A 1.5.4 No Ink-Cartridge 1.5.5 Maintenance Request Following reasons can be the causes when printer goes this error mode. When the total quantity of ink wasted through the cleanings and flushing reaches to the limit, printer indicates this error and stops. The absorber in the printer enclosure is needed to be replaced with new one by a service person.
EPSON Stylus Color 440/640/740 Revision A 1.6 Printer Initialization 1.7 Initialization Settings Stylus Color 440, 640, 740 have three kinds of initialization methods. Following explains each initialization. Stylus Color 440, 640, 740 initializes following settings when the initialization is performed. Also, if the user changes the settings in the Panel setting mode, Default setting or Remote command setting, values or settings which are possible to be stored are initialized as initialization settings.
EPSON Stylus Color 440/640/740 1.8 Main Components Stylus Color 440, 640, 740 have following major units. Also, it is one of the major characteristics that the bottom of the Printer mechanism serves as the Lower case at the same time. Each unit from 2) to 5) are simply explained below: 1) Upper Case 2) Printer Mechanism Revision A 1.8.
EPSON Stylus Color 440/640/740 Revision A 1.8.2 C206 Main-B Board (Stylus Color 440) 1.8.3 C256 Main Board (Stylus Color 640) C206 Main-B board controls Stylus Color 440 and consists of following major electric elements. This board will be changed to new board called C255 Main board. C256 Main board controls Stylus Color 640 and consists of following major electric elements.
EPSON Stylus Color 440/640/740 Revision A 1.8.4 C257 Main Board (Stylus Color 740) C257 Main board controls Stylus Color 640 and consists of following major electric elements. IC 1 4 (H e a d ) C N 9 C N 7 IC 6 ( C G :o n ly fo r N L S P ) IC 3 (P -R O M ) C N 3 C N 2 C N 1 C N 3 IC 1 5 B a tt 1 (R e g u ra to r) H T 1 C N 5 IC 4 (4 M IC 1 2 IC 1 3 ( P F D r iv e ) C N 8 IC 1 1 (C R ) IC 5 C N 4 D R A M x 2 ) C N 1 1 1.8.
EPSON Stylus Color 440/640/740 Revision A 1.8.6 C206 PNL Board (Stylus Color 440, 640) 1.8.7 C209 PNL Board (Stylus Color 740) Panel board (C206 PNL board) is located in the panel case where is in the right bottom of the front printer and consists of 3 switches, 4 LEDs and 1 connector. Panel board (C209 PNL board) is located in the panel case where is in the right bottom of the front printer and consists of 3 switches, 4 LEDs and 1 connector.
OPERATING PRINCIPLES
EPSON Stylus Color 440/640/740 Revision A 2.1 Overview This section describes the operating principles of the printer mechanism and the electric circuit board.
EPSON Stylus Color 440/640/740 Revision A 2.1.1 Printer Mechanism Like previous EPSON Ink Jet printers such as Stylus Color 400, 600, Photo, Photo 700, Photo EX, the printer mechanism of Stylus Color 440/640/740 does not have an exclusive mechanism to change over paper feeding and pumping operation. In stead, this control is done by the turning direction of paper feed/pump motor and position of the carriage at that time. Also, the print heads of these printers combine the black and CMY heads in one unit.
EPSON Stylus Color 440/640/740 Revision A 2.1.1.1 Printing Mechanism Nozzle Selector Board Basic principles of the print head which plays major role of printing mechanism is the same as previous models; on demand type MACH head method, but there is some difference in the resolution.
EPSON Stylus Color 440/640/740 Revision A 2.1.1.2 Printing Process Following figures show the sectional drawings of normal state and ejecting state of the printhead. Ink Course PZT Cavity 1. Normal State: When the print signal is not output, PTZ also does not move in the waiting state (normal state). (Refer to Figure 2-3.) 2.
EPSON Stylus Color 440/640/740 Revision A 2.1.1.3 Carriage Mechanism Carriage mechanism is to drive the carriage with print head mounted from left to right or vice versa. The carriage drive motor in these printers are a 4-phase, 200-pole, stepping motor and is driven by 1-2 phase, 2-2 phase and W1-2 phase drive method for Stylus Color 440, 460, and by 2-2 phase 1-2 phase, W1-2 phase, 2W1-2 phase and 4W1-2 phase drive method for Stylus Color 740.
EPSON Stylus Color 440/640/740 Revision A See Figure 2-6 which shows the carriage mechanism. Carriage Motor Paper Feed Motor Carriage home position Sensor PF Roller Eject Roller Paper guide(Front) Timing Belt Carriage Unit Front Side Rear Side Parallelism Adjust Lever according to the printing result or any other environmental conditions such as paper curl.
EPSON Stylus Color 440/640/740 Revision A 2.1.1.3.1 Platen Gap Adjust Mechanism and Parallel adjustment Mechanism This mechanism can be set by the users and can prevent various problems related to low image density or print with any dirt by changing the positions of PG lever according to the paper types. Table 2-4. Platen Gap Adjust Lever Setting Paper Lever Position PG adjustment value All Media Front 0 mm (1.04mm between head and platen) If you find any print problems Rear 0.7mm (1.
EPSON Stylus Color 440/640/740 Revision A Papers on the ASF (auto-sheet-feeder) supplied by the user are carried to the printer inside by paper pick up sequence. Unlike the previous models, ASF of Stylus Color 440/640/740 has mufti feed prevention mechanism. Following explains this function and figure below shows its mechanism. [1. Multi-feed prevention mechanism] When the Load/Eject button is pressed, reversed rotation of PF motor is performed.
EPSON Stylus Color 440/640/740 Revision A [2. Paper pick up mechanism] When the Load/Eject switch is pressed or printing order is input, the carriage unit moves until the left edge and collides with paper pick up trigger lever. When the carriage collides with this trigger level, a planetary gear located on the same axis is also pushed at the same time and conveys the motive power on the platen to the adjoined gear line side for ASF drive.
EPSON Stylus Color 440/640/740 Revision A 2.1.1.5 Ink System Ink system mechanism consists of 1)cap mechanism, 2)pump mechanism, carriage lock mechanism, 4)waste ink absorber and 5)ink sequence. Out of these mechanism, from 1) to 4) are physical mechanism and parts which are mounted on the printer mechanism and 5) ink sequence is performed automatically by firmware.
EPSON Stylus Color 440/640/740 Revision A 2.1.1.6 Pump, Carriage Lock, Head Cleaner Mechanism In the Stylus Color 440/640/740, there is no switch or mechanism to change over the pump/paper feed mechanism. Therefore, whenever the paper feed/pump motor rotate, pump drive roller in the pump unit inside rotates. However, ink absorption/non ink absorption are separated by the roller rotational direction.
EPSON Stylus Color 440/640/740 Revision A The table below shows PF/Pump motor rotational direction and pump system operation. Table 2-7.
EPSON Stylus Color 440/640/740 Revision A 2.1.1.6.1 Cap Mechanism In the cap mechanism, in order to prevent ink from being thickened on the head surface, it is controlled that the head surface stays adherent to the rubber frame of the cap surface when the power is off. The absorber is spread in the cap and can hold a certain amount of ink which is absorbed from the head without draining it to the waste ink pad.
EPSON Stylus Color 440/640/740 Revision A 2.2 Electrical Circuit Operating Principles C206 PSB/PSE Board C257 PSB/PSE Board +5 V DC Stylus Color 440/640/740 contains the following three electric circuit boards.
EPSON Stylus Color 440/640/740 Revision A 2.2.1 C206 PSB/PSE and C257 PSB/PSE Power Supply Board (for Stylus Color 440, 640, 740) Figure 2-16 shows block diagram of C206 PSB/PSE board. The process from the input of AC voltage to the output of 42 V DC and 5 V is explained in the following pages. There are 2 types of power supply boards for Stylus Color 440/640/740. The main components of the boards are the same, but the +5V regulator ICs which create steady +5V are different.
EPSON Stylus Color 440/640/740 1) Regardless of the state of power switch (On or OFF), the voltage is always applied in the primary side of the power supply board from the moment or at the state that AC-plug is plugged in. At this time, F1 plays a role of preventing AC100V from coming into the F1. L1 and R1-R2 also prevent high harmonic wave noise generated in the RC circuit filter which consist of C1∼C4 and R1∼R2 from going out, and eliminate the noise from outside here.
EPSON Stylus Color 440/640/740 Revision A When the power is turned on, Q1 repeats ON/OFF automatically along with the increase and decrease of energy on the trans coil at the primary side. While the power is being on, PSC signal is input to the power supply board from the C206 Main-B/C255/ C256/C257 Main board. This signal turns Q84 on and it becomes possible to discharge energy between 8-9 of T1. At this time, even if the power is turned off, the electrolytic capacitor keeps Q84 on for a while.
EPSON Stylus Color 440/640/740 Revision A 2.2.2 C206 Main-B, C255 Main (for Stylus Color 440) Various DC voltage generated on the C206 PSB/PSE board is added various signals in order to drive the printer function on the C206 main-B, C255 main, board the drive of CR/PF (Pump) motor and printing head is performed. Following figure shows the circuit diagram for Stylus Color 440.
EPSON Stylus Color 440/640/740 [CPU] The 16-bit CPU which is mounted on Stylus Color 440 is running at 25Mhz. Gate array manages most of controls and monitors. Likewise the Stylus Color, the D-RAM is applied for RAM which is used as work area for receiving data and developing the data and CPU manages its control such as CE, RAS/CAS controls. [Gate Array] E05B44 controls the following functions. Motor control Each motor performs data transmission that motives Micro-Step.
EPSON Stylus Color 440/640/740 Revision A 2.2.3 C256 Main (for Stylus Color 640) Various DC voltage generated on the C206 PSB/PSE board is added various signals in order to drive the printer function on the C256 main board, and the drive of CR/PF (Pump) motor and printing head is performed. Following figure shows the circuit diagram for Stylus Color 640.
EPSON Stylus Color 440/640/740 [CPU] The 16-bit CPU which is mounted on Stylus Color 640 is running at 25Mhz. Gate array manages most of controls and monitors. Likewise the Stylus Color, the D-RAM is applied for RAM which is used as work area for receiving data and developing the data and CPU manages its control such as CE, RAS/CAS controls. [Gate Array] E05B43 controls following functions. Motor control Each motor performs data transmission that motives Micro-Step.
EPSON Stylus Color 440/640/740 Revision A 2.2.4 C257 Main, (for Stylus Color 740) Various DC voltage generated on the C257 PSB/PSE board is added various signals in order to drive the printer function on the C257 main board the drive of CR/PF (Pump) motor and printing head is performed. Following figure shows the circuit diagram for Stylus Color 740.
EPSON Stylus Color 440/640/740 [CPU] The 16-bit CPU which is mounted on Stylus Color 740 is running at 24Mhz. Gate array manages most of controls and monitors. Likewise the Stylus Color, the D-RAM is applied for RAM which is used as work area for receiving data and developing the data and CPU manages its control such as CE, RAS/CAS controls. [Gate Array] E05B588 controls following functions. Motor control Each motor performs data transmission that motives Micro-Step.
EPSON Stylus Color 440/640/740 Revision A 2.2.4.1 Reset Circuits [C206 Main-B, C255 Main for Stylus Color 440] The reset circuit prevents the CPU from running away, which is caused by the unstable voltage in the logic line during the power ON/OFF operation. And reset IC(IC9) monitors level of power voltage at the over loading or malfunction on the circuit and manages the printer to operate normally, keeping the damage to the printer minimum during the abnormal situations.
EPSON Stylus Color 440/640/740 Revision A [C256 Main for Stylus Color 640] The reset circuit prevents the CPU from running away, which is caused by the unstable voltage in the logic line during the power ON/OFF operation. And reset IC(IC9) monitors level of power voltage at the over loading or malfunction on the circuit and manages the printer to operate normally, keeping the damage to the printer minimum during the abnormal situations. On the C256 main board.
EPSON Stylus Color 440/640/740 Revision A [C257 Main for Stylus Color 640] The reset circuit prevents the CPU from running away, which is caused by the unstable voltage in the logic line during the power ON/OFF operation. And reset IC(IC8) monitors level of power voltage at the over loading or malfunction on the circuit and manages the printer to operate normally, keeping the damage to the printer minimum during the abnormal situations. On the C257 main board.
EPSON Stylus Color 440/640/740 Revision A The following three figures show the sensor circuits. Out of the data such as EPW with IEEE 1284 Nibble mode to be returned to the host, the data to indicate ink consumption is calculated and managed by the counter of the firmware. Therefore, it is omitted here. +5V IC 2 E05B43 ASFV +5V SW4 206 +5V E05B44 (IC2) 127 128 126 125 ECS 204 HP +5V 202 +5V GND PE SW6 ECI CN5 HP PEV +5V ECO GND +5V ECK Figure 2-23. Figure 5-23.
EPSON Stylus Color 440/640/740 Revision A 2.2.4.3 EEPROM Control Circuits The EEPROM of Stylus Color 440/640/740 has following contents. Gate array controls operations of reading data when the power is on and writing data when the power is off. +5V E05B43 (IC2) AT93C46 (IC11) Ink consumption (Bk, CMY) CL counter (Various cleaning operations that are previously done are memorized) Destination information Information of various adjustment values (Bi-D, VH voltage, etc.
EPSON Stylus Color 440/640/740 Revision A 2.2.4.4 Timer Circuit A lithium battery is mounted on the main board and calculates how long the printer is not used. The timer IC starts counting with oscillation motivated by the crystal oscillator using this battery as a power source. The following figures show connection of the Timer circuit. The followings explain about operation of this circuit. When the printer is on, power is supplied to the Timer IC by applying +5V quickly through the D1.
EPSON Stylus Color 440/640/740 Revision A 2.2.4.5 DRAM Control 2.2.4.6 Print Head Control Circuit In the Dynamic RAM control, output and formation of CAS and RAS control signals become necessary in addition to the output of CS signal. The CPU not only controls that but also perform the output of CS signal of P-ROM. Refresh timing is performed in the CAS Before RAS. The print head control circuit of Stylus Color 440/640/740 has following characteristics.
EPSON Stylus Color 440/640/740 Revision A 22 +42 23 +5 15 12 10 8 H8D2813(IC6) CHG KC1 ND1 ND2 MD1 MD2 Data CLK /STB /CLR VRF VK XOVM CTB COM DTB 2 4 6 4 19 GND GND 20 21 20 E05B44(IC2) SW7 VHCTL SW8 CHG KC1 LP ND1 BIEN ND2 BHSO MD1 MD2 YCMIEN Data CLK YCMHSO /STB ICLK /CLR BCHCLK VRF VK /NCHG GND GND GND GND GND GND COM COM COM 1 16 25 17 18 199 VDD 6 +5 Vcc CN8 VHV 14 F1 VHV 200 1 198 2 90 5 99 9 100 97 7 96 93 11 92 89 13 GND2 GND2 GND2 BCO CCO LAT SI1 SI2 CLK NC
EPSON Stylus Color 440/640/740 Revision A 22 +42 23 +5 15 14 F1 12 10 8 H8D2813(IC7) CHG KC1 ND1 ND2 MD1 MD2 Data CLK /STB /CLR VRF VK 2 XOVM CTB 4 COM 6 DTB 6 4 19 +5 Vcc GND GND 20 21 20 16 25 17 E05B43(IC2) VHCTL VHCTL SW7 CHG KC1 SW8 ND1 LP ND2 MD1 HSOIEN MD2 HSO1 Data HSO2 CLK /STB HSO3 /CLR ICLK VRF VK HCLK /NCHG CN8 VHV VDD GND GND GND GND GND GND COM COM COM 1 18 199 VHV 201 1 199 2 92 5 GND2 GND2 GND2 BCO CCO LAT 96 97 11 99 9 101 7 94 13 95 91 15 SI1 SI2 SI3
EPSON Stylus Color 440/640/740 Revision A +42 F1 CN9 CXA20996(IC14) 22 VCC45 Vcc45_2 A0 NPNB A1 FB A2 PNPB A3 CLK1 CLK2 /FLOOR VCC5 /RST DATA DCLK /E VOUTGND 27 23 20 18 26 25 24 16 23 +5 24 22 21 14 20 19 VHV COM COM [Common drive circuit] The shape of trapezoidal wave form will be different according to the printing operation, slight vibrations at the non-printing nozzle and waiting condition.
EPSON Stylus Color 440/640/740 Revision A 2.2.4.7 PF (Pump) Motor Drive Circuit IC15(LB1845) on C206 Main-B, C255 Main board, IC15(UDN2917) on C256 Main board, and IC12/13(A3956) on C257 Main board are used for driving PF (Pump) motor. In the IC, Bi-pola drive PWM current control type is performed, making it possible to provide stable current to each phase of motor.
EPSON Stylus Color 440/640/740 Revision A 8 PFIA0 A3956(IC13) 9 PFIA1 14 10 PFIA2 PFPHAA 9 11 8 4 PFIB0 7 5 PFIB1 2 6 PFIB2 +5 PFPHAB 1 7 D0 OUTA D1 OUTB D2 VBB PHASE VCC 10 15 REF PFD E05B588(IC2) A3956(IC13) 14 9 C90A05 (IC1) 8 7 6 DA1 112 5 + 7 2 1 D0 OUTA D1 OUTB D2 VBB PHASE VCC 10 15 REF PFD Current Detection M6252(IC16) 1 CN8 A 3 /A Rotor 2 4 B /B Figure 2-37.
EPSON Stylus Color 440/640/740 Revision A 2.2.4.8 CR Motor Drive Circuit IC14(LB1845) on C206 Main-B, C255 Main board, IC14(UDN2917) on C256 Main board, and IC11(LB1847) on C257 Main board are used for driving CR motor. In the IC, Bi-pola drive PWM current control type is performed, making it possible to provide stable current to each phase of motor. The figures below show carriage motor drive circuit.
EPSON Stylus Color 440/640/740 E05B43 (IC2) CRA0 CRA1 CRA0 CRB1 CRAPH CRBPH MTBV0 MTBV1 MTBV2 MTBV3 Revision A UDN2917 (IC15) 75 2 76 1 75 23 73 24 I21 77 43 74 26 Out1A I11 Out1B I20 Out2A PH1 Out2B 6 A 1 3 18 /A 3 21 Rotor B PH2 2 60 /B 61 62 44 63 25 MTBV4 64 MTAV0 65 MABV1 66 MTAV2 67 MTAV3 70 MTAV4 I10 CN5 4 Vref1 Vref2 +5 71 +5 Figure 2-39.
EPSON Stylus Color 440/640/740 Revision A LB1847(IC11) E05B588(IC2) CRIA0 CRIA1 CRIA2 CRIA3 CRIB0 CRIB1 CRIB2 CRIB3 CRPHAA CRPHAB CRENBA CRENBB 25 IA1 194 24 IA2 195 23 IA3 196 22 IA4 200 18 IB1 199 19 IB2 198 20 IB3 197 21 IB4 OUTA OUTA- 7 6 191 202 27 192 PHASE1 OUTB 16 PHASE2 OUTB- 201 26 9 8 ENBL1 17 C90A05 (IC1) DA0 193 2 111 3 + ENBL2 1 2 13 Current Detection M6252(IC15) 1 Vref1 Vref2 CN7 A 3 /A Rotor 2 4 B /B Figure 2-40.
TROUBLESHOOTING
EPSON Stylus Color 440/640/740 Revision A 3.1 Troubleshooting Table 3-1. Motor Resistance and Measurem ent Procedure Motor Name The printer may exhibit different symptoms for the same problem, which makes troubleshooting more difficult. This section, however, provides simple and effective ways to facilitate troubleshooting. The following flowchart illustrates the main steps of the trouble shooting process. Resistance 7.
EPSON Stylus Color 440/640/740 Revision A Table 3-2. Sensor Check Sensor Name Paper End Senior Carriage Home Position Sensor ASF Phase Sensor Black Cartridge Sensor Color Cartridge Sensor Thermistor Chapter 3 Troubleshooting Location Signal Level Sensor Status • Stylus Color 440/640 CN4/Pins 1 & 2 Open: less than 0.7 V Paper loaded • Stylus Color 740 CN5/Pins 1 & 2 Close: more than 2.4 V No paper • Stylus Color 440/640 CN5/Pins 1 & 2 Open: less than 0.
EPSON Stylus Color 440/640/740 Revision A Table 3-3. Printer Condition and Panel Status Indicators Error Status Chapter 3 Recovery Power Ink out (Black) Ink Out (Color) Paper Out Paper Out --- --- --- On Paper jam condition --- Off Off Blink Eliminate a paper then press the load/eject button. No Ink cartridge or Ink end (black) --- On --- --- Install a new black ink cartridge by pressing the load/eject button for 3 seconds.
EPSON Stylus Color 440/640/740 Revision A 3.2 Unit Level Troubleshooting 3.2.1 Printer does not operate at power on. When a problem occurs, you can identify the defective unit according to the symptoms exhibits. The table below lists the symptoms of certain problems. Once the problem is identified, refer to the flowchart that corresponds to the problem. Is AC power voltage normal? Table 3-4. Symptom and Problem Symptom Problem Flowchart No. Printer does not LEDs do not light. operate at power on.
EPSON Stylus Color 440/640/740 Revision A 3.2.2 Error is detected 3.2.3 Failure occurs during printing START START Check the error message.(Refer to Table 3-3) Perform selftest printing Is it a carriage error? Yes Is printing carried out O.K? Turn off the printer, and move the carriage by hand. NO YES Is print quality normal? NO Does the carriage move smoothly? Replace the inkcartridge with a new one.
EPSON Stylus Color 440/640/740 Revision A 3.2.4 Printer does not feed paper correctly. START Is paper set in the ASF correctly? 3.2.5 Control panel operation is abnormal. START Is the control panel connected correctly? NO NO Set the paper correctly YES Do the PF roller and platen rotate? YES NO Is the problem solved? Is the PF motor running? NO Remove any obstruction in the paper path if there is any. YES YES Check the PF motor. If there is no problem, replace the main board.
EPSON Stylus Color 440/640/740 Revision A 3.3 Unit Repair of Power Supply Board Note: The power supply board equipped with each printer is as follows: Stylus Color 440: C206 PSB/PSE Stylus Color 640: C206 PSB/PSE Stylus Color 740: C257 PSB/PSE This section describes the problems related to the power supply board. The table below provides various symptoms, likely causes, and checkpoints.
EPSON Stylus Color 440/640/740 Revision A Table 3-5. Repair of the C206/C257 PSB/PSE Board Symptom The printer does not operate at all. Chapter 3 Condition +42V line is dead. Troubleshooting Cause F1 is open. Checkpoint Check F1 by using a tester. Solution Replace F1. Transformer coils are open. Check the waveform at the drain of Q1. Replace T1. Switching FET (Q1) is dead. Check drain side. Replace Q1. Feed back transistor (Q2, Q3) are dead. Check collector side. Replace Q2 or Q3.
EPSON Stylus Color 440/640/740 Revision A Table 3-5. Repair of the C206/C257 PSB/PSE Board Symptom (Continued) Condition +5V line is dead. The printer does not operate at all. Cause IC51 (L4962E/FA3635P) is dead. Note: • L4962 is used for Stylus Color 440/640. • FA3635P is used for Stylus Color 740. Checkpoint Stylus Color 440/640: • Check the oscillation (Pin 5) waveform of IC51. Solution Replace IC51. (Pin 5) • Check the switching (Pin 7) waveform of IC51. (Pin 7) IC51 (L4962E/FA3635P) is dead.
EPSON Stylus Color 440/640/740 Revision A 3.4 Unit Repair of the Main Board Note: The Main board equipped with each printer is as follows: Stylus Color 440: C206MAIN-B, C255MAIN Stylus Color 640: C256MAIN Stylus Color 740: C257MAIN This section describes the problems related to the main controller board. The table below provides various symptoms, likely causes, and checkpoints.
EPSON Stylus Color 440/640/740 Revision A Table 3-6. Unit Repair of Main Board Symptoms The printer does not operate at all. Condition CPU does not operate. Cause The reset circuit does not operate. Control ROM, D- RAM, and Mask ROM are not selected correctly or it’s dead. (Continues to the next page.) Chapter 3 (Continues to the next page.) Troubleshooting (Continues to the next page.
EPSON Stylus Color 440/640/740 Revision A Table 3-6. Unit Repair of Main Board Symptoms (Continued) The printer does not operate at all. Condition (Continued) CPU does not operate. Cause (Continued) Stylus Color 440: CRU2 is dead. Stylus Color 640: CR2 is dead. Stylus Color 740: CR1 or IC2 is dead. The carriage does not operate normally. (Continues to the next page.) Chapter 3 Carriage motor does not operate at all or it occurs a abnormal noise. (Continues to the next page.
EPSON Stylus Color 440/640/740 Revision A Table 3-6. Unit Repair of Main Board Symptoms (Continued) The carriage does not operate normally. Printing is abnormal. Condition (Continued) Carriage motor does not operate at all or it occurs a abnormal noise. Cause Stylus Color 440, 640: IC14 is dead. Printing is not execute. Trapezoidal waveform does not output. Stylus Color 740: IC11 is defective. IC2 is dead.
EPSON Stylus Color 440/640/740 Revision A Table 3-6. Unit Repair of Main Board Symptoms Paper feed operation is abnormal. Condition Paper feed motor does not work. Cause IC2 is dead. Check Point Stylus Color 440: Check the waveform at 25, 18 pin of IC14. Stylus Color 640: Check the waveform at 43, 26 pin of IC16. Stylus Color 740: Check the waveform at Pin 7 of IC12 and IC13. Solution Replace IC2 Stylus Color 440, 640: IC15 is dead. Stylus Color 440: Check the output waveform of at 6-9 pin of IC15.
EPSON Stylus Color 440/640/740 Revision A 3.5 Repair of the Printer Mechanism This section provides instruction for repairing the printer mechanism. It describes various problems, symptom, likely causes, checkpoints, and solutions. Select appropriate symptom from the table and check each parts and its function as described in the checkpoint. Table 3-7. Repair of the Printer Mechanism Symptom Abnormal pump mechanism operation Ink is not absorbed or is poorly absorbed. Abnormal carriage operation.
EPSON Stylus Color 440/640/740 Revision A Table 3-7. Repair of the Printer Mechanism Symptom Abnormal printing Condition Only a particular dot causes abnormal printing. Cause Print head surface is not clean. (dot missing) Check Point Perform the cleaning operation several times and check printing. Solution Perform the cleaning. The head unit is defective. Perform the cleaning operation several times and check printing. If condition does not improve even after the cleaning, replace the head.
EPSON Stylus Color 440/640/740 Revision A Table 3-7. Repair of the Printer Mechanism Symptom Abnormal paper feeding. Printer stops during initialization. Chapter 3 Condition Paper is not fed. Fatal error appears. Troubleshooting Cause Friction of the PF roller. Check Point Check if the PF roller rotates when paper is not fed. Solution Clean the PF roller by the cleaning sheet. Replace the PF roller if it does not recover. Abnormal operation of the hopper.
DISASSEMBLY AND ASSEMBLY
EPSON Stylus Color 440/640/740 Revision A 4.1 Overview W A R N IN G This chapter describes procedures for disassembling the main components of EPSON Stylus Color 440/640/740. Unless otherwise specified, disassembly units or components can be reassembled by reversing the disassembly procedure. Therefore, no assembly procedures are included in this chapter. Precautions for any disassembly or assembly procedure are described under the heading “CHECK POINT”.
EPSON Stylus Color 440/640/740 Revision A 4.1.2 Tools C A U T IO N C A U T IO N Risque d’explosion si la pile est remplacée incorrectment. Ne remplacer que par une pile du même type ou d’un type équivalent recommandé par le fabricant. Eliminer les piles déchargées selon les lois et les règles de sécurité en vigueur. Chapter 4 Table 4-1 lists the tools recommended for disassembling, assembling, or adjusting the printer. Use only tools that meet these specifications. Table 4-1.
EPSON Stylus Color 440/640/740 Revision A 4.1.3 Specification for Screws Table 4-2 shows screw specifications. During assembly and disassembly, make sure that the specified types of screws are used at proper locations, referring to the table below. Note that the screw numbers described in the manual correspond to the numbers in the table. Table 4-2. Screw Characteristic No.
EPSON Stylus Color 440/640/740 Revision A 4.1.4 Service Checks After Repair Before returning the printer after servicing, use the check list below, which enables you to keep record of servicing and shipping more efficiently. Table 4-3.
EPSON Stylus Color 440/640/740 Revision A 4.2 Disassembly Procedures The flowchart below shows procedures for disassembly. Remove the Housing Refer to 3.2.1 Remove the Board Assembly 3.2.2 Remove the Printer Mechanism 3.2.4 Remove the operation panel 3.2.3 Remove the Print Unit 3.2.4.1 Remove the Absorber tray, Assembly;A 3.2.4.2 Remove the Pump Assembly, Cap Assembly 3.2.4.
EPSON Stylus Color 440/640/740 Revision A 4.2.1 Removing the Housing Since the printer mechanism itself structures the bottom part, the printer mechanism appears just by removing the housing. 1. Open the printer cover and turn the PG adjustment lever towards (+) side. (No.2) Housing 2. Remove 4 screws (No.2) securing the housing, and remove the housing. C A U T IO N Lift up and remove the housing, pulling it towards you. (Since it collides with carriage) Figure 4-2.
EPSON Stylus Color 440/640/740 Revision A 4.2.2 Removing the Board Assembly Since the main board and power supply circuit board are built in a separate bracket from the printer mechanism, remove the whole bracket from the printer mechanism. C A U T IO N NOTE: The main board and power supply board equipped with each printer are as follows - Stylus Color 440:C206MAIN-B, C255 Main, C206PSB/PSE - Stylus Color 640:C256MAIN, C206PSB/PSE - Stylus Color 740:C257MAIN, C257PSB/PSE 1. Remove the housing.
EPSON Stylus Color 440/640/740 Revision A (No.1) (No.1) Main Board [Cable Holder A and B] Power Supply Board (No.6) A B (No.1) (No.1) M/B Shield Plate M/B Shield plate (No.1) Figure 4-3. Removing the M/B Shield Plate Figure 4-4.
EPSON Stylus Color 440/640/740 Revision A 4.2.3 Removing the Operation Panel The panel board equipped with each printer is as follows: - Stylus Color 440/640: C206PNL - Stylus Color 740: C209PNL 1. Remove the housing. (Refer to Section 4.2.1.) P a n e l S h ie ld P la te P a n e l B o a r d A s s e m b ly (N o .3 ) 2. Remove two screws (No.1) securing the operation panel and disconnect the operation panel from the printer mechanism. 3. Remove one screw (No.1) and detach the left panel housing. 4.
EPSON Stylus Color 440/640/740 Revision A 4.2.4 Disassembling the Printer Mechanism Since Stylus Color 440/640/740 do not have the lower housing, the printer mechanism part should already appear by now. Therefore, this section explains procedures for disassembling the major parts or units of the printer mechanism. C H E C K P O IN T Make sure that the earth board is installed to the carriage correctly. (There are 2 pins to determine the location.
EPSON Stylus Color 440/640/740 Revision A F a s te n e r H e a d O n ly fo r 7 4 0 F F C N o te : T h e r e is n o a c tu a to r s o n th e p r in th e a d fo r S ty lu s C o lo r 7 4 0 . P r in th e a d U n it Figure 4-6.
EPSON Stylus Color 440/640/740 Revision A This part should be touching the CR shaft receiver. Make sure that this protrusion is in the U ditch of the priht head side. Make sure that the protrusion of the carriage is aligned with the hole of the earth board. Carriage Assembly Print Head Nozzle Selector; Stylus Color 440: 1 piece Stylus Color 640: 2 pieces Nozzle Selector has been enclosed into head. Stylus Color 740 Figure 4-7.
EPSON Stylus Color 440/640/740 Revision A 4.2.4.2 Removing the Absorber Tray Assembly ;A 1. Remove the housing. (Refer to Section 4.2.1.) (N o .4 ) 2. Remove the operation panel. (Refer to Section 4.2.3.) 3. Remove one screw (No.4) securing “Absorber tray assembly” located on the right side of the printer mechanism. 4. On the right side of the printer mechanism, release the hook securing the “Absorber tray assembly ;A” to the frame and remove it, pulling it downward.
EPSON Stylus Color 440/640/740 Revision A 4.2.4.3 Removing the Pump Assembly and Cap Assembly 1. Remove the housing. (Refer to Section 4.2.1.) C A U T IO N 2. Remove the operation panel. (Refer toSection 4.2.3.) 3. Remove the absorber tray assembly ;A. (Refer to Section 4.2.4.2.) 4. Loosen two screws located on the edge of the paper eject frame assembly and float release the joints for the paper eject assembly and the side frames. 5.
EPSON Stylus Color 440/640/740 Revision A Loosen screws on the right and left sides and float the Paper eject frame assembly. Release three hooks from the interior of the right frame assembly. Pump Assembly Cap Assembly (No.5) Release a hook from the back of the printer mechanism and remove two protrusions from the subframe. Figure 4-9.
EPSON Stylus Color 440/640/740 Revision A Head Cleaner Order of assembling the pump parts. Figure 4-10.
EPSON Stylus Color 440/640/740 Revision A 4.2.4.4 Removing the CR Motor Assembly 1. Remove the housing. (Refer to Section 4.2.1) 2. Rotate the gear 67.2 toward you and release the carriage lock mechanism, then move the carriage to the center. (N o .1 ) 3. Loosen the timing belt by pushing the driven pulley holder and remove the timing belt from the pulley on the CR motor. 4. Remove two screws(No.1) and remove the CR motor assembly.
EPSON Stylus Color 440/640/740 Revision A 4.2.4.5 Removing the PF Motor Assembly [For Stylus Color 740] G e a r 3 4 1. Remove the housing.(Refer to Section 4.2.1.) 2. Remove the absorber tray assembly ;A. (Refer to Section 4.2.4.2.) 3. Remove the following gears located on the left side of the printer mechanism. Gear 67.2 (Remove the ring with tweezers or a (-) driver. After the ring is removed, if you try to remove the gear 67.2 by holding its edge, the gear may break.
EPSON Stylus Color 440/640/740 Revision A [For Stylus Color 440, 640] 1. Remove the housing. (Refer to Section 4.2.1.) 2. Remove the absorber tray assembly ;A. (Refer to Section 4.2.4.2.) 3. Remove the 2 screws securing the PF motor assembly. to the frame. C H E C K P O IN T Chapter 4 When disassembling the PF motor assembly, pull the motor assembly out of the frame a little bit and remove it, sliding it into a larger hole in the frame. (Refer to Figure 4-14.
EPSON Stylus Color 440/640/740 Revision A 4.2.4.6 Removing the ASF Assembly 1. Remove the housing. (Refer to Section 4.2.1.) C R 2. Release the fixed hook from the inside of the printer mechanism and remove the gear 34 from the roller shaft in the ASF assembly. 3. Remove the cables from the cable hook on the printer mechanism and the hook on the ASF assembly. 4. After removing 2 screws (one No.
EPSON Stylus Color 440/640/740 Revision A 4.2.4.6.1 Removing the Paper Feed Roller Assembly 1. Remove the ASF assembly. (Refer to Section 4.2.4.6.) 2. Remove the brake lever, releasing one leg of the torsion spring 41.2 from the hook of the ASF frame. 3. Remove the fixing shaft bushing from the right side of the LD roller shaft and the release hopper lever. 4. Move the left paper feed assembly to the center and remove the cam fixing bushing (white plastic) attached to the left side of LD roller shaft. 5.
EPSON Stylus Color 440/640/740 Revision A H o p p e r A s s e m b ly B ra k e L e v e r T o r s io n S p r in g 4 1 .2 A S F F ra m e L e ft S h a ft F ix in g B u s h in g R e le a s e H o p p e r L e v e r ( E P S O N s ta n d a r d c o lo r ) ( B la c k ) S h a ft F ix in g B u s h in g P a p e r F e e d R o lle r A s s e m b ly L D R o lle r S h a ft Figure 4-16.
EPSON Stylus Color 440/640/740 Revision A 4.2.4.6.2 Removing the Right and Left LD Roller Assembly 1. Disassemble the ASF assembly and remove the paper feed roller assembly and hopper assembly from the ASF assembly. (Refer to Section 4.2.4.6.) L D R o lle r C o v e r ( R ig h t a n d L e ft) C o m p r e s s io n S p r in g + P a p e r F e e d H o ld e r S h e e t 1 .6 6 2. Take out the right and left compression springs 1.66 from the back of the hopper assembly. 3.
EPSON Stylus Color 440/640/740 Revision A 4.2.4.7 Removing the Carriage Assembly 1. Remove the housing. (Refer to Section 4.2.1) 2. Loosen the timing belt by pushing the driven pulley holder and remove the timing belt from the pulley of the CR motor side. 3. Take the compression spring 19.6 out of the driven pulley holder. 4. Remove the driven pulley assembly from the driven pulley holder with the timing belt. Slide the driven pulley holder and remove it from the frame.
EPSON Stylus Color 440/640/740 Revision A C a r r ia g e A s s e m b ly L e ft P a r a lle lis m A d ju s tm e n t B u s h in g C R G u id e S h a ft R ig h t P a r a lle lis m P G A d ju s tm e n t B u s h in g S u p p o rt L e v e r W a s h e r [C o n v e x s id e s h o u ld fa c e to th e b u s h in g s id e d u r in g in s ta lla tio n ] Figure 4-19.
EPSON Stylus Color 440/640/740 Revision A 4.2.4.8 Removing the PF Roller Assembly 1. Remove the housing.(Refer to Section 4.2.1.) 2. Remove the carriage assembly.(Refer to Section 4.2.4.7.) L e ft P a p e r G u id e 3. Remove three screws(No.1) on the printer mechanism and disassemble the cable guide board. 4. Remove six upper paper guide assemblies, releasing their springs from the hooks in the frame.
EPSON Stylus Color 440/640/740 Revision A F r o n t P a p e r G u id e ;B A lig n th e p r o tr u s io n in th e P F r o lle r a s s e m b ly w ith th e h o le in th e fr a m e fo r h o ld in g th e s h a ft. E je c t P a p e r R o lle r A s s e m b ly P F R o lle r A s s e m b ly Figure 4-21. Removing the Paper Eject Roller Assembly Chapter 4 Disassembly and Assembly Figure 4-22.
EPSON Stylus Color 440/640/740 Revision A 4.2.4.9 Removing the PE Paper Detector Assembly 1. Remove the housing. (Refer to Section 4.2.1.) 2. Release two fixed hooks securing the PE detector assembly from the back of the frame and remove the PE detector assembly, sliding it upward. Remove the PE board assembly and PE lever, if necessary. C H E C K P O IN T A fte r r e le a s in g tw o h o o k s , r e m o v e th e P E p a p e r d e te c to r a s s e m b ly , s lid in g it u p w a r d .
EPSON Stylus Color 440/640/740 Revision A 4.2.4.10 Removing the HP Detector 1. Remove the housing. (Refer to Section 4.2.1.) 2. Remove the cable from the HP detector and take it out after releasing the fixed hook. H P D e te c to r Figure 4-24.
ADJUSTMENT
EPSON Stylus Color 440/640/740 Revision A 5.1 Overview Table below shows the actions taken and required adjustments in the order to be performed. This chapter describes adjustments required when the printer is disassembled and assembled after repair. Table 5-2 Actions Taken and Adjustment Required No. Content of Operation Adjustment Procedure 5.1.1 Required Adjustments 1 Removal of the printhead Stylus Color 440/640/740 require the following adjustments.
EPSON Stylus Color 440/640/740 Revision A 5.1.2 Adjustment Tools Required Table 5-3 below shows adjustment tools for Stylus Color 440/640/740. Table 5-3 Adjustment Tools Required No. Name Adjustment Item Contents/Spec. 1 Thickness Gauge Parallelism Adjustment 2 Adjustment Program Each Mechanism Settings Exclusive Program; SC440.EXE SC640.EXE SC740.EXE C A U T IO N Chapter 5 1.04 mm N eve r use the ben t (cu rved or tilted) or rusty th ickness ga uge.
EPSON Stylus Color 440/640/740 Revision A 5.2 Adjustment This section explains specific procedures for each adjustment required for Stylus Color 440/640/740. 5.2.1 Parallelism Adjustment When replacing the carriage assembly or removing it during printer mechanism disassembly, perform the parallelism adjustment during assembling and set the standard distance from the surface of the printhead to the paper surface.
EPSON Stylus Color 440/640/740 Revision A [Fixing Parallelism Adjustment Bushing] P o s itio n M a r k 13. Fix the right and left parallelism adjustment bushings with screws. (No.1 screw for each.) F o rw a rd ( G a p : W id e r ) When completing this adjustment, check the overlap amount of the printhead and head cleaner. 1. Rotate the gear 67.2 and move the head cleaner to the printer rear side. B a c k w a rd (G a p : N a rro w e r) (+ ) S id e F r a m e (0 ) 2.
EPSON Stylus Color 440/640/740 5.2.2 Adjustment by Adjustment Program In this printer, it is necessary to set the correct information for each printer mechanism in order to maintain consistent printing function and quality, eliminating difference of each printer mechanism's characteristics.
EPSON Stylus Color 440/640/740 Revision A Main menu ESC Key Return Key Adjustment Maintenance Market/Destination Check Head Cleaning(CL2) Head Voltage ID Input Ink Charge Flag Reset Head Angular Adjustment Bi-D Adjustment A4 Check Pattern Transportation Liquid Charge Protection Counter value Figure 5-5.
EPSON Stylus Color 440/640/740 5.2.2.2 Entering the Main menu Before performing any adjustment, you need to enter the main menu, however, you may have to take the following extra steps before entering the main menu depending on the printer model name and mode name registration status. Registering the model name (Section 5.2.2.2.1.) Setting the CG (Section 5.2.2.2.2.) Revision A 4. Following screen appears. M S -D O S P ro m p t-S C 6 4 0 A u to S ta r tin g th e s e r v ic e p r o g r a m .
EPSON Stylus Color 440/640/740 5. After a few seconds, the model name appears on the screen shown below. Proceed to one of the following steps. Revision A 6. The main menu shown below appears. M S -D O S P ro m p t-S C 6 4 0 A u to If the printer is Stylus Color 440 or 640, go to Step 6. If the printer is Stylus Color 740, go to Section 5.2.2.2.2 / Step 1. ****** E P S O N S ty lu s C O L O R < > < > < < 6 4 0 S E R V IC E P R O G R A M V e r s io n 1 .
EPSON Stylus Color 440/640/740 5.2.2.2.1 Registering the printer model name Revision A 2. Type the correct model name, referring to the box below. 1. If no model name is registered, the screen shown below appears. Press the E key while pressing the Alt key, and the program advances to the Model Name Input Screen.
EPSON Stylus Color 440/640/740 5.2.2.2.2 Setting the CG (Destination information) (For Stylus Color 740 only) Since there are two models for Stylus Color 740, the standard model and NLSP model, you are required to set the correct CG according to the model by following the steps described in this section. Revision A 2. (For Stylus Color 740 only) Perform one of the followings: 1. (For Stylus Color 740 only) Select "No" on the Initial Screen (2) (Figure 5-7), and the screen below appears.
EPSON Stylus Color 440/640/740 Revision A 5.2.2.3 Initial Ink Charge Operation There is no ink charged in the ink path of a spare printhead and printer mechanism. Therefore, after you replaced any of the following units, perform initial ink charge and return the printer after making sure that ink is ejected correctly from the printhead. 3. By using the Up/Down arrow key, select Ink Charge Flag Reset in the maintenance menu (Figure 5-12), and the Initial Ink Charge Menu below appears.
EPSON Stylus Color 440/640/740 Revision A 5.2.2.4 Head Cleaning Operation 1. Enter the main menu. (Refer to Section 5.2.2.2.) Different from the previous models, Stylus Color 440, 640, and 740 have no dummy cleaning sequence called CL3, which was performed to prevent ink from being unnecessarily consumed when cleaning was repeated without any printout. However, Stylus Color 440/640/740 is alternatively equipped with the strongest cleaning sequence CL2 contained in this adjustment program.
EPSON Stylus Color 440/640/740 Revision A 5.2.2.5 Protection Counter Indicate/Reset The program provided with this manual can let you confirm or clear the current protection counter value. (Of course, you can confirm or clear the current protection value by main unit alone. Refer to table 1-21 and 1-22 for details.) 4. Press the Enter key while the reverse cursor is indicating Check the protect counter value. The screen below appears.
EPSON Stylus Color 440/640/740 Revision A [Clearing the current protection counter value] 5. Press the Enter key while the reverse cursor is indicating Already replaced. The screen below appears. 1. Enter the main menu. (Refer to Section 5.2.2.2 ) 2. Apply the maintenance menu. M S -D O S P ro m p t-S C 6 4 0 A u to 3. By using the Up/Down arrow key, select the item Indication of the counter value for the waste ink pad in the maintenance menu (Figure 5-12).
EPSON Stylus Color 440/640/740 Revision A 5.2.2.6 Market/Destination Check (only for Stylus Color 740) 1. Enter the main menu. (See Section 5.2.2.2 .) As already mentioned, there are two models for Stylus Color 740, Standard model and NLSP model, and you are required to set the suitable destination depending on the type of the main board supported.
EPSON Stylus Color 440/640/740 Revision A 4. Press the Enter key, and the screen below appears. The terms World and Standard show the current value set in the destination and CG addresses in the EEPROM.
EPSON Stylus Color 440/640/740 5.2.2.7 Head Voltage ID Input Head voltage value adjustment function enables you to write printhead ID. This operation is considered the most important to maintain proper ink discharging system. If an ID is not written correctly, it results in white or color lines and also gives bad influence on dot weight. This adjustment is required in the following cases. Revision A 4. By using the Up/Down arrow key, select Head Voltage ID Input in the adjustment menu. (Figure 5-19.
EPSON Stylus Color 440/640/740 Revision A 6. When you input the head ID value, the screen automatically advances consequently, as shown below: 7. Press the Esc key once. The screen returns to the Head Voltage ID Check/Input Select Menu. (See Figure 5-22.) 8. By using the Up/Down arrow key, select Check present data on the screen. The screen below appears. M S -D O S P ro m p t-S C 6 4 0 A u to M S -D O S P ro m p t-S C 6 4 0 A u to W r itin g to E E P R O M n o w .
EPSON Stylus Color 440/640/740 Revision A 5.2.2.8 Head Angular Adjustment 2. Apply the main menu (Figure 5-21). (See Section 5.2.2.2.) During production, slight variations are created in printheads and carriage (which are used as a printhead base.) If these differences are not adjusted, they can adversely influence the printhead angle, and color overlapping is not performed correctly and color/white line problem occurs as a result.
EPSON Stylus Color 440/640/740 Revision A Head Angular Adjustment Pattern (BK-M) 6. Look at the black/magenta combination in the pattern and move the adjusting lever to make the magenta lines stay between the black lines with even space. The figure below shows how the pattern changes as the adjusting lever moves right (rear) or left (front). Figure 5-28. Sample of Head Angular Adjustment Pattern 5. Loosen the printhead securing screw securing the printhead on the carriage.
EPSON Stylus Color 440/640/740 Revision A 7. After changing the position of the adjust lever, select Head angular adjustment pattern again. The printer prints out a head angular adjustment pattern and the screen automatically returns to the Current Head Angular Confirmation Menu (1) shown in the figure below.
EPSON Stylus Color 440/640/740 Revision A 5.2.2.9 Bi-D Adjustment You perform this adjustment to correct differences in printing positions, which is caused by slippage of printing timing in right and left directions during the Bi-directional printing. Therefore, you are required to perform this adjustment after performing the following operations. Replacing the Print mechanism Replacing the main board Replacing the CR motor Replacing the Carriage Assembly Replacing g the Printhead 4.
EPSON Stylus Color 440/640/740 Revision A 6. By using the Up/Down key, select Adjust on the Bi-D adjustment menu (Figure 5-32). Then the screen below appears. 200 CPS Bi-D Pattern : Data = -2 M S -D O S P ro m p t-S C 6 4 0 A u to 2 0 0 C P S B i- D A d ju s tm e n t Left Gap S e le c t a n a d ju s tm e n t v a lu e w ith th e U p /D o w n a r r o w k e y s .
MAINTENANCE
EPSON Stylus Color 440/640/740 Revision A 6.1 Overview 6.1.2 Service Maintenance This section describes the points and the procedures for maintaining the printer in its optimum condition. If print irregularity (missing dot, white line, etc.) has occurred or the printer indicates “MAINTENANCE ERROR”, take the following actions to clear the error. 6.1.1 Cleaning This printer has no mechanical components which require regular cleaning.
EPSON Stylus Color 440/640/740 Revision A 6.1.3 Lubrication Table 6-2. Lubrication Point The type and amount of oil and grease used to lubricated the printer parts are determined based on the results of internal evaluations. Therefore, be sure to apply the specified type and amount of oil and grease to the specified part of the printer mechanism during servicing. C A U T IO N Never use oil and the grease other than those specified in this manual.
EPSON Stylus Color 440/640/740 Revision A Table 6-2. Lubrication Point No. 5 Standard The shaft for “GEAR, 16, 40.8” on “FRAME, LEFT” Remarks Use a syringe to apply it. Table 6-2. Lubrication Point No.
EPSON Stylus Color 440/640/740 W A R N IN G Revision A Never apply oil to the CR guide shaft directly. This may cause fatal damage to the components of the printer. Avoid applying oil excessively to the oil pad. This may cause fatal damage to the components of the printer. N o .2 1 0 m m 2 m m * N e v e r a p p ly th e o il e x c e e d in g 0 .6 c c . N o .1 N o .
EPSON Stylus Color 440/640/740 Revision A N o .5 N o .3 "G E A R , 3 4 " N o .4 "G E A R , 2 3 .2 " "G E A R , 1 6 , 4 0 .8 " N o .4 "G E A R , 6 7 .2 " N o .1 1 N o .4 "C O M B IN A T IO N G E A R , 8 , 1 4 .
EPSON Stylus Color 440/640/740 Revision A N o .6 "H O P P E R , A S S E M B L Y " N o .1 0 N o .7 "F R A M E , A S F " "H O L D E R , P U L L E Y , D R IV E N " N o .9 N o .
APPENDIX
EPSON Stylus Color 440/640/740 Revision A A.1 Connector Summary This section gives information on connectors and their pin assignment. Since all connectors and their pin assignments except for CN8 (printhead) are common for Stylus Color 440 and Stylus Color 640, they are included in one section (Section A.1.1.) Refer to Section A.1.2 for the connector summary for Stylus Color 740. Each section includes the following information. Section A.1.
EPSON Stylus Color 440/640/740 Revision A A.1.1 Connector Summary (Stylus Color 440/640) This section provides information on connectors in the main units of the Stylus Color 440 and Stylus Color 640. Figure 1 shows how the main component units are connected. AC CN1 C A U T IO N Information contained in this section only applies to Stylus Color 440 and Stylus Color 640. C206PSB/PSE (Power Supply Board) CN3 Control Panel CN8 CN2 If you need information on Stylus Color 740, go to Section A.1.2.
EPSON Stylus Color 440/640/740 Revision A A.1.1.1 Connector Pin Assignment (Stylus Color 440 and Stylus Color 640) Tables in this section provide connector pin assignments of the C206MAIN-B, C255MAIN and C256MAIN, the main boards equipped with Stylus Color 440 and Stylus Color 640. C A U T IO N C A U T IO N Information contained in this section only applies to Stylus Color 440 and Stylus Color 640. Pin assignments for all connectors but CN8 (Printhead) are common.
EPSON Stylus Color 440/640/740 Revision A Table A-5. Connector CN6 Pin Signal Name I/O Function Table A-7. Connector CN8 (C206MAIN-B, C255MAIN) Pin Signal Name I/O Function 1 CRA Out Phase drive signal (A) 1 BCO In Black ink cartridge detect signal 2 CRB Out Phase drive signal (B) 2 CCO In Color ink cartridge detect signal 3 CR-A Out Phase drive signal (-A) 3 THM In Thermistor detect signal 4 CR-B Out Phase drive signal (-B) 4 GND --- Ground Table A-6.
EPSON Stylus Color 440/640/740 Revision A Table A-8. Connector CN8 (C256MAIN) Pin Signal Name I/O Function Table A-9.
EPSON Stylus Color 440/640/740 A.1.2 Connector Summary for Stylus Color 740 This section contains information on connectors in the main units of Stylus Color 740. Figure 2 shows how the main component units of the Stylus Color 740 are connected. C A U T IO N Information contained in this section only applies to Stylus Color 740. Revision A AC CN1 C257PSB/PSE C257PSK (Power Supply Board) CN2 If you need information on Stylus Color 440 and Stylus Color 640, return to Section A.1.1.
EPSON Stylus Color 440/640/740 Revision A A.1.2.1 Connector Pin Assignment (Stylus Color 740) Tables in this section provide connector pin assignments of the C257MAIN, the main board equipped with Stylus Color 740. C A U T IO N Information contained in this section only applies to Stylus Color 740. Table A-13. Connector CN5 Pin Signal Name PE In Sensor detect signal 2 GND --- Ground 3 PEV --- Sensor power supply (+5V) Table A-14.
EPSON Stylus Color 440/640/740 Revision A Table A-17. Connector CN9 Pin Signal Name I/O Function Table A-18.
EPSON Stylus Color 440/640/740 A.2 EEPROM Address Map This section contains EEPROM map for Stylus Color 440/640 and Stylus Color 740. As it is in Section A.2, this section is separated in 2 parts as shown below. Therefore, be sure to refer to the correct section depending on the printer model. Section A.2.1 EEPROM map for Stylus Color 440 and Stylus Color 640 Section A.2.2 EEPROM map for Stylus Color 740 Revision A A.2.
EPSON Stylus Color 440/640/740 Revision A Table A-20. Stylus Color 440/640 EEPROM Address Map Address 00H Explanation Setting Password 0 01H 02H Market 0: Word 1: Japan 2: Custom (MJ-)∗∗ 3: Custom (Stylus Color) ∗∗ 4: Custom (other name) ∗∗ Table A-21.
EPSON Stylus Color 440/640/740 Revision A Table A-22.
EPSON Stylus Color 440/640/740 Revision A Table A-24. Stylus Color 440/640 EEPROM Address Map (Continued) Table A-25. Stylus Color 440/640 EEPROM Address Map (Continued) QPIT Settings Factory Settings CR-phase of Home 00H 00H 3FH ERROR Number 00H 00H 4AH 40H Password 4 5AH - 4BH 0FH - 4CH bit7: Reserved bit6: black “one time” bit5: color “one time” bit4: Initial fill required bit3: Reserved bit2: in cleaning seq.
EPSON Stylus Color 440/640/740 Revision A Table A-26.
EPSON Stylus Color 440/640/740 Revision A A.2.2 EEPROM Address Map (Stylus Color 740) This section provides EEPROM address map for the Stylus Color 740. l Table A-29. Stylus Color 740 EEPROM Address Map Address 00H Explanation Setting Password 0 01H C A U T IO N EEPROM map in this section only applies to Stylus Color 740. If you need EEPROM map for Stylus Color 440/640, return to Section A.2.1. (They are combined in one table.
EPSON Stylus Color 440/640/740 Revision A Table A-30.
EPSON Stylus Color 440/640/740 Revision A Table A-32. Stylus Color 740 EEPROM Address Map (Coutinued) Address 33H 34H 35H 36H Explanation CG table Auto LF, Network I/F mode Panel mask function Top margin 37H Chapter 7 Appendix Table A-33. Stylus Color 740 EEPROM Address Map (Coutinued) QPIT Settings Factory Settings Address 0: Italic U.S.A., 1: Italic France, 2: Italic Germany 3: Italic U.
EPSON Stylus Color 440/640/740 Revision A Table A-34. Stylus Color 740 EEPROM Address Map (Coutinued) Table A-35.
EPSON Stylus Color 440/640/740 Revision A A.3 Circuit Board Component Layouts This section is composed of the following components layouts.
EPSON Stylus Color 440/640/740 Revision A Figure A-3.
EPSON Stylus Color 440/640/740 Revision A . Figure A-4.
EPSON Stylus Color 440/640/740 Revision A Figure A-5.
EPSON Stylus Color 440/640/740 Revision A Figure A-6.
EPSON Stylus Color 440/640/740 Revision A Figure A-7.
EPSON Stylus Color 440/640/740 Revision A Figure A-8.
EPSON Stylus Color 440/640/740 Figure A-9. C206PSB Board Component Layout (Stylus Color 440/640) Chapter 7 Appendix Revision A Figure A-10.
EPSON Stylus Color 440/640/740 Figure A-11. C257 PSB Board Component Layout (Stylus Color 740) Chapter 7 Appendix Revision A Figure A-12.
EPSON Stylus Color 440/640/740 Revision A Figure A-14. C209PNL Component Layout Figure A-13.
EPSON Stylus Color 440/640/740 Revision B A.4 Exploded Diagrams This section contains the following exploded diagrams.
EPSON Stylus Color 440/640/740 Revision A 102 126 751 752 115 500 752 105 126 125 180 450 101 125 106 181 for LATIN 107 124 124 182 753 122 104 for LATIN 119 122 124 400 for ETT 400 for EAI 124 410 for RUSSIA 103 for EUR,S.E.ASIA,OCEANIA,EKL,RUSSIA 123 400 401 100 EXPLODED DIAGRAM FOR EPSON STYLUS COLOR 440 (1/3) Chapter 7 Appendix REV.1.
EPSON Stylus Color 440/640/740 726 Revision A 709 727 711 712 714 740 510 703 713 747 718 A 703 300 708 C 122 721 728 755 763 122 764 739 122 587 707 735 720 741 B 122 729 122 748 710 723 746 742 737 743 736 738 745 739 721 720 733 725 734 732 724 534 504 532 578 122 587 750 735 503 587 722 719 718 723 567 111 122 506 581 580 122 111 121 109 121 565 D 530 108 587 122 587 110 122 109 113 569 574 579 112 744 716 717 731 330 200 737 746 72
EPSON Stylus Color 440/640/740 527 Revision A 545 122 524 519 523 520 527 548 551 521 513 518 552 553 545 588 521 526 525 546 (506) 548 551 117 759 183 545 550 528 507 554 555 548 551 549 517 184 (565) 545 550 549 D 587 528 545 550 549 522 550 762 706 700 547 548 551 549 (501) 761 704 548 551 548 551 527 119 564 562 550 587 549 119 516 705 535 538 542 544 542 544 542 576 765 587 (505) 587 560 561 509 514 544 588 539 544 542 544 542 544 587 702
EPSON Stylus Color 440/640/740 Revision A 126 102 for EUR.,S.E.ASIA,OCEANIA EKL,RUSSIA 751 102 for USA 115 752 500 752 105 126 125 180 450 125 101 106 181 for LATIN 107 124 124 753 122 104 182 for LATIN 119 122 124 400 for ETT 400 for EAI 410 for RUSSIA 103 124 for EUR,S.E.ASIA,OCEANIA,EKL,RUSSIA 123 400 401 100 EXPLODED DIAGRAM FOR EPSON STYLUS COLOR 640 (1/3) Chapter 7 Appendix REV.1.
EPSON Stylus Color 440/640/740 726 Revision A 709 727 711 712 714 740 510 703 713 747 718 A 703 300 708 C 122 721 728 755 763 122 764 739 122 587 707 735 720 741 B 122 729 122 748 710 723 746 742 737 743 736 738 745 739 721 720 733 725 734 732 724 534 504 532 578 122 587 750 735 503 587 722 719 718 723 567 111 122 506 581 580 122 109 113 D 122 111 121 109 108 569 587 122 587 110 121 565 530 574 579 112 744 716 717 731 330 200 737 746 72
EPSON Stylus Color 440/640/740 527 Revision A 545 122 524 519 523 520 527 548 551 521 507 554 555 759 183 545 513 518 552 553 545 588 521 526 525 546 (506) 548 551 117 550 528 548 551 549 517 (565) 184 545 550 549 D 587 528 545 550 549 522 550 762 706 700 547 548 551 549 (501) 761 704 548 551 548 551 527 119 564 562 550 587 549 119 516 705 535 701 549 515 563 529 536 703 550 566 538 544 760 702 531 576 542 544 542 544 542 540 765 543 541
EPSON Stylus Color 440/640/740 Revision B 126 102 751 115 766 500 766 752 105 126 125 180 450 135 106 107 125 125 752 101 181 for EAI, LATIN 124 124 132 182 753 133 122 104 for LATIN 119 124 122 400 for EAI 103 124 400 for ETT 123 For EUR,S.E.ASIA, OCEANIA,RUSSIA 134 400 123 401 100 EXPLODED DIAGRAM FOR EPSON STYLUS COLOR 740 (1/3) Chapter 7 Appendix Rev.
EPSON Stylus Color 440/640/740 726 Revision B 709 727 711 712 A 703 714 510 740 713 747 718 598 703 300 708 C 122 128 721 728 763 755 122 764 587 739 735 720 741 B 122 729 122 748 710 723 746 742 737 736 738 743 745 736 720 725 734 732 532 735 503 587 724 534 504 122 579 112 744 716 717 733 587 750 722 719 718 723 567 111 122 109 122 113 506 D 530 108 568 B 587 A 114 558 577 590 573 587 556 501 758 756 587 757 505 559 502 557 EXPLODED DIAGRAM
EPSON Stylus Color 440/640/740 527 Revision B 122 524 545 519 523 520 527 552 553 545 588 548 551 521 507 554 555 550 184 528 548 551 549 517 545 550 549 522 704 548 551 548 551 550 706 700 547 548 551 549 (501) 762 545 550 527 761 D 587 528 754 760 (565) 549 518 759 183 545 513 521 526 525 546 (506) 548 551 117 119 564 562 550 587 549 119 516 602 535 550 566 538 544 705 703 701 549 515 767 563 529 536 702 596 601 531 576 542 544 537
EPSON Stylus Color 440/640/740 Revision B A.5 Part List Table A-37. Part List for Stylus Color 440/640 (2/4) Part Name A.5.1 Part List for Stylus Color 440/640 Table A-36. Part List for Stylus Color 440/640 (1/4) Part Name Part Name Part Name 514 Bushing, Parallelism Adjustment, Right 546 Paper Guide, Right 515 Paper Guide, Rear 547 Paper Guide, Left 516 Roller, PF 548 Shaft, Paper Guide, Upper 517 Compression Spring, 5.
EPSON Stylus Color 440/640/740 Revision B Table A-38. Part List for Stylus Color 440/640 (3/4) Table A-39. Part List for Stylus Color 440/640 (4/4) Part Name 578 Push Nut, 2 724 Roller, LD, Sub 757 Holder, Paper Support, Sub, Upper 579 Harness, HP 725 Holder, Roller, LD, Sub, Right 758 Torsion Spring, 0.29 580 Harness, PE 726 Pad Assy.
EPSON Stylus Color 440/640/740 Revision B A.5.2 Part List for Stylus Color 740 Table A-40. Part List for Stylus Color 740 (1/4) Table A-41. Part List for Stylus Color 740 (2/4) 519 Lever, Change 550 Roller, Driven;D 520 Spur Gear, 26.4 551 Torsion Spring, 117.
EPSON Stylus Color 440/640/740 Revision B Table A-42. Part List for Stylus Color 740 (3/4) Table A-43. Part Lis for Stylus Color 740 (4/4) 586 CBS-Tite Screw 719 Holder, Edge Guide, Right 752 Absorber, Waste Ink, Large 587 CBS-Tite Screw, M3x6 720 Compression Spring, 1.17 753 Tray, Absorber 588 CBS-Tite (P4) Screw, 3x6, F/Zn 721 Tension Spring, 0.62 754 Spacer, Tray 589 Leaf Spring, 6.2x0.15x11 722 Lever, Paper Return, Right 755 Bushing, Fixing, Shaft, Left 590 Plain Washer, 6.1x0.5x9.
EPSON Stylus Color 440/640/740 Revision B A.6 Circuit Diagrams See the following pages for the circuit diagrams below. NOTE: For circuit diagram for C206MAIN-B, refer to the hard copies, as no pdf files for it is provided. C206MAIN-B circuit diagram 1/2, 2/2 See the hard copies.
EPSON Stylus Color 440/640/740 Revision B C206MAIN-B Circuit diagrams 1of 2 See the hard copy.
EPSON Stylus Color 440/640/740 Revision B C206MAIN-B Circuit diagrams 2 of 2 See the hard copy.
EPSON Stylus Color 440/640/740 Revision B C206PSB 1/1 Chapter 7 Appendix 208
EPSON Stylus Color 440/640/740 Revision B C206PSE 1/1 Chapter 7 Appendix 209
