Canon iR C3200 Series Service Manual page 822

Chapter 16
Field Remedy
Adjust the setting of the following in service mode: COPIER>ADJUST>BLANK>BLANK-B.The symptom
maybe corrected when the trailing edge margin is increased by about 4 mm.
16.3.2.7.10 White spots (like small flower) along the leading edge: when feeding paper with high
resistance in a low humidity environment
Symptom
White spots (like small flower) occurs along the leading edge, where the resistance tends to be high in a low
humidity environment.
Cause
A transfer fault occurs during secondary transfer (i.e., the level of the secondary transfer current is too high).
Field Remedy
With care, make use of the following in service mode: COPIER>ADJUST>HV-TR>2TR-TGT/2TR-SHR/TR-
ENV/TR-PPR/TR-CLR/TR-DUP.
adverse effect of changing the setting: toner may move astray, worsening the occurrence of white spots.
16.3.2.7.11 A fine, white line around 30mm of the trailing edge on A3 paper
[ Inspected by Canon Inc. ]
Cause
When the temperature at both ends of the fixing roller rises, the roller pressure becomes higher there. Under this
condition, it is possible the trailing edge of paper jumps.
Field Remedy
Install the Spur (FG6-9649) to the ITB locking shaft. For the installation procedure, refer to Service Manual
[Troubleshooting > Correcting Faulty Images > Image Fault Case Studies > The output has transfer faults/lines. >
Mounting the Spur (FG6-9649)].
16.3.2.7.12 White spots (mottled)
Symptom
White spots occur in images (mottled).
Cause
Paper lint sticks to paper from the pre-registration roller, causing a transfer fault during secondary transfer.
Field Remedy
Clean the clips (2 pc. above the pre-registration roller).
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