COPYRIGHT
©
2001 CANON INC. 2000 2000 2000 2000 CANON iR2200/iR2800/iR3300 REV.0 MAR. 2001
CONTENTS
P2
2.2.2 AC Bias..............................4-5P
2.3 Controlling the Current Voltage/
Current to a Specific Level...... 4-5P
2.3.1 Controlling the DC Bias to a
Specific Level.................... 4-5P
2.3.2 Controlling the AC Bias to a
Specific Current Level....... 4-5P
2.4 Temperature Correction of the DC
Bias ..........................................4-6P
2.5 Humidity Correction of the AC Bias
.................................................4-6P
2.6 Controlling the Detection of the
Photosensitive Drum Resistance
(APVC control)........................ 4-7P
3 Controlling the Transfer Charging
Roller Bias...................................... 4-9P
3.1 Outline..................................... 4-9P
3.2 Turning On/Off the Bias........4-10P
3.3 Controlling the Detection of the
Transfer Charging Roller Resistance
(ATVC control)......................4-10P
3.4 Controlling the Output by Operat-
ing Mode................................ 4-11P
3.4.1 Types of Modes............... 4-11P
3.4.2 Turning On/Off the Cleaning
Bias.................................. 4-12P
3.5 Controlling the Output...........4-13P
4 Controlling the Separation Static Elimi-
nator Bias .....................................4-14P
4.1 Outline................................... 4-14P
4.2 Turning On/Off the Bias........4-15P
4.3 Controlling the Bias to a Specific
Voltage Level......................... 4-15 P
4.4 Controlling the Output by Paper
Type and Environment Sensor (hu-
midity).................................... 4-15P
5 Controlling the Transfer Guide Bias
......................................................4-16P
5.1 Transfer Guide Bias...............4-16P
6 Primary Charging Roller Cleaning
Mechanism................................... 4-17P
6.1 Outline................................... 4-17P
7 Developing Assembly.................. 4-18P
7.1 Outline................................... 4-18P
7.2 Controlling the Developing Bias
...............................................4-19P
7.2.1 Outline............................. 4-19P
7.2.2 Controlling the DC Developing
Bias.................................. 4-20P
7.2.3 Controlling the AC Developing
Bias.................................. 4-20P
7.2.4 Controlling the Level of the DC
Developing Bias .............. 4-20P
7.3 Detecting the Level of Toner
...............................................4-21P
8 Drum Cleaner............................... 4-22P
8.1 Outline................................... 4-22P
8.2 Monitoring the Waste Toner Case
...............................................4-24P
8.3 Locking of the Waste Toner
Feedscrew ..............................4-25P
9 Disassembly and Assembly..........4-26P
9.1 Pre-Exposure Lamp Unit.......4-27P
9.1.1 Removing the Pre-Exposure
Lamp Unit........................ 4 -27P
9.2 Photosensitive Drum..............4-28P
9.2.1 Removing the Drum Unit 4-28P
9.2.2 Cleaning the Photosensitive
Drum................................ 4-29P
9.3 Transfer Charging Roller.......4-30P
9.3.1 Removing the Transfer Charg-
ing Roller......................... 4-30P
9.4 Charging Roller Solenoid......4-31 P
9.4.1 Removing the Charging Roller
Solenoid (SL6) ................4-31P
9.5 Developing Assembly............4-33P
9.5.1 Removing the Developing As-
sembly..............................4 -33P
9.5.2 Removing the Grip Assembly
.........................................4-34P
9.5.3 Removing the Toner Sensor
.........................................4-34P
9.5.4 Removing the Developing As-
sembly Upper Cover........ 4-34P
9.5.5 Removing the Blade Base Unit
.........................................4-35P
9.5.6 Removing the Developing Cyl-
inder................................. 4-35P