Chapter 3 Image Quality Troubleshooting
3.2 Image Quality Troubleshooting
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IQ-18 The top and side margins are incorrect
Possible causative parts
- IIT ASSY (PL21.1.14)
- DADF ASSY (PL21.1.1)
- KIT DADF PICK UP MODULE (PL21.1.95)
- Drum Cartridge [XERO ASSY] (PL8.1.1)
- Transfer Unit [ROLL ASSY-TRANS CRU] (PL6.1.1)
- ROS ASSY (PL2.1.1)
Step Check and Action Yes No
1
Checking the error mode.
Does the error occur only during copying?
Go to step 2. Go to step 7.
2
Checking the error mode.
Does the error occur when feeding the original at the DADF?
Go to step 4. Go to step 3.
3
Checking the original setting.
Is the original set to the platen glass correctly?
Replace the IIT
ASSY (REP
21.1).
Reseat the origi-
nal.
4
Checking the original setting.
Does the original meet DADF spec?
Go to step 5.
Use the platen
mode or change
the paper type.
5
Checking the DADF Guides setting.
Reseat the DADF Guides.
Does the error still occur when copying?
Go to step 6. End of work.
6
Checking the KIT DADF PICK UP MODULE.
Are there any damages or foreign substances on the KIT
DADF PICK UP MODULE?
Remove the for-
eign substances
or replace the
KIT DADF PICK
UP MODULE.
Replace the
DADF ASSY.
(REP 21.1).
7
Checking the printing.
Checked by [CE-Mode] - [Printer Diag] - [Test Print] -
[Gradation] in diagnosis.
Is the image printed correctly?
Printing data is
incorrect, then
check the print-
ing data which
the problem gen-
erated.
Go to step 8.
8
Checking after replacing the Drum Cartridge.
Replace the Drum Cartridge.
Is the image printed correctly?
End of work. Go to step 9.
9
Checking after replacing the Transfer Unit.
Replace the Transfer Unit.
Is the image printed correctly?
End of work.
Replace the
ROS ASSY.
(REP 2.1)