Technical information

COPYRIGHT © 2001 CANON INC. 2000 2000 2000 2000 CANON iR2200/iR2800/iR3300 REV.0 MAR. 2001
CONTENTS
T2
CHAPTER 4 TROUBLESHOOTING IMAGE FAULTS/
MALFUNCTIONS
1 Making Initial Checks ................... 4-1T
1.1 Checking the Site of
Installation .................................4-1T
1.2 Checking the Originals .............4-1T
1.3 Checking the ADF Platen,
Copyboard cover, and Copyboard
glass (standard white plate) .... 4-1T
1.4 Charging Roller and Static
Eliminator .................................4-2T
1.5 Checking the Developing
Assembly .................................4-2T
1.6 Checking the Paper ...................4-2T
1.7 Checking the Periodically
Replaced Parts ..........................4-2T
1.8 Image Adjustment Basic
Procedure .................................4-2T
1.9 Others ....................................... 4-3T
2 Samples of Image Faults .................4-6T
3 Troubleshooting Image Faults ........4-7T
3.1 The copy is too light (halftone
area only) ..................................4-7T
3.2 The copy is too light (including
solid black) ...............................4-8T
3.3 The copy is too light (entire
face, considerable) ..................4-10T
3.4 The copy has uneven density
(darker at front) ......................4-12T
3.5 The copy has uneven density
(lighter at front) ......................4-12T
2.7 Points to Note When
Replacing the CCD Unit .........3-12T
2.8 When Replacing the Reader
Controller PCB .......................3-12T
3 Image Formation System ..............3-13T
3.1 Positioning the Developing
Assembly Magnetic Seal ........3-13T
3.2 Mounting the Developing
Assembly Blade .....................3-13T
3.3 Removing the Paper Lint ........3-14T
3.4 Cleaning the Waste Toner
Case ........................................3-15T
4 Fixing System ...............................3-16T
4.1 Mounting the Locking
Cam Unit ................................3-16T
5 Paper Deck ...................................3-17T
5.1 Mounting the Front Cover ......3-17T
5.2 Adjusting the Paper Level
Indicator .................................3-18T
5.3 Adjusting the Position of
the Support Member ...............3-18T
5.4 Mounting the Deck Pickup
Roller ......................................3-19T
5.5 Removing the Deck Pickup/
Feeding Roller ........................3-19T
5.6 Orientation of the Deck
Pickup/Feeding Roller ............3-20T
5.7 Adjusting the Deck
Separation Roller Pressure .....3-20T
5.8 Position of the Deck Pickup Roller
Releasing Solenoid (SL1D) .. 3-21T
5.9 Adjusting the Height of
the Side Member ....................3-22T
5.9.1 Before Making
Adjustments .....................3-22T
5.9.2 Making Adjustments ........ 3-22T
6 Cassette Feeding Unit-W1 ............3-23T
6.1 Mounting the Pedestal
Main Motor ............................3-23T
7 Envelope Feeder Attachment .........3-24T
7.1 Envelopes and Type of
Spring .....................................3-24T
7.2 Replacing the Spring ..............3-24T
7.2.1 Replacing the Spring ........3-24T
7.3 Changing the Size ...................3-25T
7.3.1 Changing the Size ............3-25T