4
Data Transfer Test
33_7
7020
1. Main
Mother board unit
2. Image processing PCB (input memory)
PCI-LVDS/ARCNET PCB/LVDS cable/Image processing PCB/Memory unit
3. Image processing PCB (expansion unit)
Image correction PCB/Image processing PCB/Expansion memory PCB
4. Laser Control PCB
Image Processing PCB/LVDS Cable/Laser Control PCB
Normal
Normal
Abnormal
Abnormal
Transfer results
Explanation
• When an abnormal print appears, place around problem part can be defined to some extent by
transferring the image data.
• Transfer the data from “1. Main” to “4. Laser control PCB”, check transferred image data in
each section, and [Abnormal] is displayed at the place where the problem occurs.
Refer to the Service Manual 35900.
• When an abnormal print appears even though all transfer results are [Normal], check around the
laser unit section.
Note
• This mode is effective only when an abnormal print appears in spite of an error having not
occurred.
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