Ricoh MP C6502SP Field Service Manual page 1042

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5. Troubleshooting

Error Name/Error Condition/Major Cause/Solution

The XSCRDY signal (polygon ready) never becomes inactive (H) after the

polygon motor went OFF.

• The interface harness to the polygon motor driver damaged or not

connected correctly.

• Polygon motor or polygon motor driver defective

• Polygon motor drive pulse cannot be output correctly. (Polygon

• XSCRDY signal observation failing (Polygon controller)

• Cycle the machine off/on.

• Replace the laser unit.

• Replace the polygon harness.

• Replace the IPU board.

Error Name/Error Condition/Major Cause/Solution

Polygon Motor: XSCRDY Signal Error: Bk

Polygon Motor: XSCRDY Signal Error: Ma

During polygon motor rotation, the XSCRDY signal was inactive (H) for

longer than one rotation of the polygon.

• Occurs when the PATMOS polygon error determination register

detects that the XSCRDY signal was inactive (H) for longer than one

rotation of the polygon (7 cycles of PMCLK).

• The PATMOS polygon error determination register detects that the

XSCRDY signal was inactive (H) for longer than one rotation of the

polygon, and then refers to SCERR2.