User Guide

COPYRIGHT © 1999 CANON INC. CANON CLC1120/1130/1150 REV.0 MAR. 1999 PRINTED IN JAPAN (IMPRIME AU JAPON)
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C. Controlling the Attraction
Charging Mechanism and
Transfer Charging Current .. 6-20
1. Operations..................... 6-20
D. Controlling the Separation
Charging Current ................ 6-21
1. Operation ...................... 6-21
E. Controlling the External/Internal
Static Eliminating Current ... 6-23
1. Operation ...................... 6-23
F. Controlling the Post-Cleaning
Charging Current ................ 6-24
1. Operations..................... 6-24
G. Controlling the Temperature of
the Photosensitive Drum..... 6-25
1. Control........................... 6-25
2. Controlling the Power
Using the Environment
Switch SW6................... 6-25
H. Controlling the Primary Charging
Wire Cleaning Mechanism .. 6-27
1. Operations..................... 6-27
2. Conditions for
Operation ...................... 6-27
IV. DEVELOPING
ASSEMBLIES .......................... 6-28
A. Outline ................................. 6-28
B. Locking the Developing
Assembly............................. 6-29
C. Controlling the Concentration of
Color Toner.......................... 6-31
1. Outline ........................... 6-31
2. Measuring the
Concentration of Color
Toner on the Developing
Cylinder Assembly ........ 6-32
3. Controlling the Color
Toner Concentration
Measurement Mechanism
of the Photosensitive
Drum ............................. 6-33
4. Sequence of
Measurement ................ 6-34
D. Controlling the Concentration of
Black Toner.......................... 6-35
1. Outline ........................... 6-35
2. Controlling the Supply of
Black Toner.................... 6-35
2. Controlling the Supply of
Black Toner.................... 6-35
3. Measuring the Concentration
of Black Toner
(patch detection) ........... 6-36
4. Detecting Dirt on the
Window ......................... 6-38
5. Sequence of Operations
(measurement)............. 6-39
6. Error Code (E020)
Related to Control of Toner
Concentration................ 6-40
E. Supplying Toner .................. 6-48
V. PHOTOSENSITIVE DRUM
CLEANER ASSEMBLY ............ 6-49
A. Outline ................................. 6-49
B. Controlling the Reciprocating
Mechanism of the Cleaning
Blade ................................... 6-50
C. Controlling the Collection of
Waste Toner ........................ 6-50
1. Checking the Waste
Toner Case (full)............ 6-50
2. Detecting a Waste Toner
Feedscrew Lock
Condition ....................... 6-51
VI. DISASSEMBLY/ASSEMBLY .... 6-52
A. Photosensitive Drum
Assembly............................. 6-53
1. Construction .................. 6-53
2. Removing the
Photosensitive Drum ..... 6-53
3. When Replacing the
Photosensitive Drum ..... 6-57
4. Cleaning the
Photosensitive Drum ..... 6-59
5. Removing the Drum
Heater ........................... 6-60
6. Removing the Drum
Heater Brush ................. 6-61
B. Pre-Exposure Lamp ............ 6-61
1. Removing the
Pre-Exposure
Lamp Unit...................... 6-61
C. Charging Assembly............. 6-62
1. Outline ........................... 6-62
2. Removing the Primary
Charging Assembly....... 6-62
3. Removing the Grid
Plate .............................. 6-62
4. Replacing the Wire
Cleaning Pad of the
Primary Charging
Assembly....................... 6-63
5. Removing the Post-Cleaning
Charging Assembly....... 6-64
6. Adjusting the Height of the
Charging Wire ............... 6-64
D. Developing
Assemblies.......................... 6-65
1. Construction of the Y/M/C
Developing Assembly.... 6-65