Image Problems; Overview; Checking A Sample Printout - Kyocera FS-C1020MFP Service Manual

Troubleshooting

Image Problems

Overview

Image problems may appear at regular intervals that depend on the circumference of certain
components. The following diagram shows the possible symptoms (black or white dots at
regular intervals).
Abnormal image at 24-mm intervals: Paper feed roller
Abnormal image at 25.5-mm intervals: Image transfer belt unit
Colored spots at 27-mm intervals: Print cartridge (Development roller)
Abnormal image at 30-mm intervals: Charge roller
Abnormal image at 38-mm intervals: Registration roller
Abnormal image at 60-mm intervals: Transfer roller
Colored spots at 76-mm intervals: Print cartridge (OPC drum)
Abnormal image at 110-mm intervals: Fusing unit (Pressure roller)
Abnormal image at 115.5-mm intervals: Fusing unit (Heat roller)

Checking a Sample Printout

Print out a mono-color pattern (all K, C, M, or Y), which will clarify if the cause is a problem
with one of the AIOs, the image transfer belt, image transfer roller, or the fusing unit. A
sample page is provided with the printer driver's CD. You can print the sample page from the
printer driver's CD. Before printing, you have to adjust the printer driver settings to make the
problem become obvious. For details about adjusting the settings, refer to "Printer Driver
Setting for Printing a Sample" described below.
Occurs with 1-3 colors: AIO unit(s) failure
Occurs with all four colors: Image transfer belt, transfer roller or fusing unit failure
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