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