Ricoh AP-C3, Field Service Manual, Page: 916 / 1334

Scanner Test Mode
SBU Test Mode
Output the SBU test pattern with SP4-807-001 to make sure the scanner SBU control operates correctly.
The SBU test pattern prints out after you have set the SP mode settings and pressed the start key.
• The CCD on the SBU board may be defective if the copy is abnormal but the SBU test pattern is
normal.
• The following can be the cause if the copy is abnormal and the SBU test pattern is also abnormal:
• The harness may not be correctly connected between the SBU and the IPU.
• The IPU or SBU board may be defective.
6. Troubleshooting
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