Chapter 3 Image Quality Troubleshooting
3.2 Image Quality Troubleshooting
3-30
IQ-14 Banding
Possible causative parts
- Transfer Unit [ROLL ASSY-TRANS CRU] (PL6.1.1)
- Drum Cartridge [XERO ASSY] (PL8.1.1)
- FUSING UNIT (PL7.1.1)
- ROS ASSY (PL2.1.1)
- HVPS (PL18.2.5)
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 3.
2
Checking the original.
Is the original color clean?
Go to step 4.
End, change the
original.
3
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.
End of work.
Go to step 4.
4
Checking the paper.
Is the installed paper with a new and dry one? Or does the
paper satisfy the specification?
Go to step 5.
Replace the
paper with a new
and dry one. Or
change the
paper to the one
that satisfies the
specification.
Then go to step
5.
5
Checking for foreign objects in the paper transfer path.
Remove any foreign objects in the paper transfer path
between the Transfer Unit and the FUSING UNIT.
Does the printout have Banding/Horizontal band cross out?
Go to step 6. End of work.
6
Checking the Transfer Unit for connection.
Remove the Transfer Unit.
Are the Plate Spring BTR on HVPS dirty or deformed?
Clean up the
Plate Spring BTR
or Replace the
HVPS (REP
18.3), then go to
step 7.
Go to step 7.
7
Checking after resetting the Transfer Unit.
Reseat the Transfer Unit.
Is the image printed correctly?
End of work. Go to step 8.
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