Service manual

AR-235/275 DISASSEMBLY, ASSEMBLY AND MAINTENANCE - 1
[10] DISASSEMBLY, ASSEMBLY AND MAINTENANCE
1. Maintenance table
N: Check (Check, clean, replace or adjust according to necessity.)
Y: Cleaning R: Replace L: Lubricate
2. Counter clear
3. List of disassembly and assembly
Unit Parts 50k 100k 150k 200k 250k 300k Note
Process unitDrum RRRRRR
Cleaning blade RRRRRR
Drum frame unit NNNRNN
Seal F/R NNNNNN
MC unit
RRRRRR
Unit supply only
(Individual parts in the unit can not be supplied.)
Separation pawl unit
NRNRNR
Unit supply only
(Individual parts in the unit can not be supplied.)
DV unit Developer RRRRRR
DV seal NNNNNN
Side seal (F/R) NNNNNN
Fusing unit Upper heat roller Y Y R Y Y R
Lower heat roller YYYYYR
Upper separation pawl Y Y R Y Y R
Lower separation pawl YYYYYR
Thermistor YYYYYY
Upper heat roller gear L L R L L R
Upper heat roller bush NNRNNR
Lower heat roller bearing NNNNNR
Paper guide YYYYYY
Paper feed Pickup roller (Multi bypass tray) NNNNNNChanging criteria for parts:50k
Separation sheet (Multi bypass tray) NNNNNNChanging criteria for parts:50k
Separation roller (Multi bypass tray) NNNNNNChanging criteria for parts:50k
Pickup roller (500 sheets tray) NNNNNNChanging criteria for parts:50k
Separation sheet (500 sheets tray) NNNNNNChanging criteria for parts:50k
Separation roller (500 sheets tray) NNNNNNChanging criteria for parts:50k
Transport
roller unit
Transport roller unit
YRYRYR
Unit supply only
(Individual parts in the unit can not be supplied.)
Ozone filter Ozone filter RRRRRR
Others Paper feed rollers YYYYYY
Gears LLLLLL
LSU Dust-proof glass
NNNNNN
Clean only the outer surface of the glass with the
developing CRU disassembled (with the LSU
attached to the machine).
Item SIM Remarks
Maintenance cycle setting SIM 21-1
Jam/trouble counter clear SIM 24-1
Paper feed counter clear SIM 24-2 At maintenance
DF/Scan/Stapler counter clear SIM 24-3 At maintenance
Maintenance counter clear SIM 24-4 At drum replacement
Developing counter clear SIM 24-5 At developer replacement
Copy counter clear SIM 24-6
Drum counter clear SIM 24-7 At drum replacement
Printer, other counter clear SIM 24-9
FAX related counter clear SIM 24-14
Scanner mode counter clear SIM 24-15
Unit Parts
A. Process unit (1) Drum
(2) Drum section a. Main charger
b. Cleaning blade
c. Drum frame unit
d. Moquette F/R
e. Separation pawl
B. Developing unit (1) Developer
(2) DV seal/side seal
C. Fusing unit (1) Upper heat roller
(2) Lower heat roller
(3) Fusing Separation Pawl (upper)
(4) Fusing Separation Pawl (lower)
(5) Thermistor
(6) Upper heat roller gear
(7) Upper heat roller bearing
(8) Lower heat roller bearing
(9) Paper guide
D. Paper feed (1) Multi manual
paper feed
a. Paper feed roller/pickup
roller
b. Separation sheet
(2) Upper 500
sheets tray
paper feed
a. Paper feed roller
b. Pickup roller
c. Separation sheet
(3) Lower 500
sheets tray
paper feed
a. Paper feed roller
b. Pickup roller
c. Separation sheet
E. Side door unit (1) Transport roller unit
F. 1st paper exit unit (1) Paper exit roller
G. Laser unit (1) LSU
Unit Parts