Canon 1130 Service Manual page 14

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
3. Measuring the Concentration
of Black Toner
(patch detection) ........... 6-36
4. Detecting Dirt on the
Window ......................... 6-38
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COPYRIGHT © 2002 CANON INC.
V.
VI. DISASSEMBLY/ASSEMBLY .... 6-51
CANON CLC1100/1130/1150/1160/1180 REV.2 FEB. 2002 PRINTED IN JAPAN (IMPRIME AU JAPON)
5. Sequence of Operations
(measurement) .............. 6-39
6. Error Code (E020)
Related to Control of Toner
Concentration ................ 6-40
E. New Gradation Correction Con-
trol (patch detection; CLC1140/
1160/1180) ........................ 6-46a
1. Outline ......................... 6-46a
2. New Gradation Correction
Control
(patch detection) ......... 6-46a
3. Timing of
Measurement ............... 6-46c
4. Error Code Related to New
Gradation Correction Control
(E020) ......................... 6-46d
F. Supplying Toner .................. 6-47
PHOTOSENSITIVE DRUM
CLEANER ASSEMBLY ............ 6-48
A. Outline ................................. 6-48
B. Controlling the Reciprocating
Mechanism of the Cleaning
Blade ................................... 6-49
C. Controlling the Collection of
Waste Toner ........................ 6-49
1. Checking the Waste
Toner Case (full) ............ 6-49
2. Detecting a Waste Toner
Feedscrew Lock
Condition ....................... 6-50
A. Photosensitive Drum
Assembly ............................. 6-52
1. Construction .................. 6-52
2. Removing the
Photosensitive Drum ..... 6-52
3. When Replacing the
Photosensitive Drum ..... 6-56
4. Cleaning the
Photosensitive Drum ..... 6-58
5. Removing the Drum
Heater ........................... 6-59
6. Removing the Drum
Heater Brush ................. 6-60
B. Pre-Exposure Lamp ............ 6-60
1. Removing the
Pre-Exposure
Lamp Unit ...................... 6-60
C. Charging Assembly ............. 6-61
1. Outline ........................... 6-61
2. Removing the Primary
Charging Assembly ....... 6-61
3. Removing the Grid
Plate .............................. 6-61