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Chapter 3 Image Quality Troubleshooting
6
Checking the defective parts.
Print the [Pitch Configuration Chart] in [Chart Print] in
[Diagnosis] tab of [Tool Box].
When the vertical stripes of periodicity are observed, check
the defective parts by comparing the printed vertical stripes
with the Pitch Chart.
Are there any vertical stripes matching the chart?
Replace the
corresponding
parts.
Go to step 7.
7
Checking the TRANSFER ASSY for connection.
Open the COVER ASSY FRONT.
Are four HV terminals on the TRANSFER ASSY, and four
springs on the frame (PL4.1.11, 12, 13 and 14) dirty and/or
deformed?
Clean or replace
the TRANSFER
ASSY or
SPRING(s).
Go to step 8.
8
Checking the PHD ASSY for connection.
Remove the PHD ASSY.
Are five HV terminals on the PHD ASSY, and five springs on
the frame (PL4.1.10 and PL4.1.15 to 18) dirty and/or
deformed?
Clean and/or
replace the PHD
ASSY or
SPRING(s).
Go to step 9.
9
Checking after replacing the PHD ASSY.
Replace the PHD ASSY. (Refer to REP4.6.)
Is the image printed correctly?
End of work. Go to step 10.
10
Checking after replacing the TRANSFER ASSY.
Replace the KIT TRANSFER ASSY. (Refer to REP6.3.)
Is the image printed correctly?
End of work. Go to step 11.
Step Check
Remedy
Yes No
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