Ricoh V-C3 D081 Field Service Manual page 657

Laser synchronization detector error: C leading edge: LD0
SC226 D
While the polygon motor is rotating normally, no synchronizing detection signal is
output for LD0 cyan, leading edge.
• Harness between the laser synchronizing detector and I/F unit is disconnected,
defective
• Check all connections between LD unit, LDB, IPU
• LD unit
• LDB defective
• IPU defective
Laser synchronization detector error: C leading edge (not LD0)
SC227 D
While the polygon motor is rotating normally, no synchronizing detection signal is
output for cyan, leading edge for any LD other than LD0.
• Harness between the laser synchronizing detector and I/F unit is disconnected,
defective
• Check all connections between LD unit, LDB, IPU
• LD unit
• LDB defective
• IPU defective
FGATE error: Feedback remains HIGH for K write
SC230 D
After the start of timing to create the black image, the PFGATE register of the GAVD
did not assert.
• Harness between the VBCU and LDB unit disconnected, loose, or defective.
• LD unit defective
• IPU defective
• Controller board disconnected, defective
• HDD defective
FGATE error: Feedback remains LOW for K write
SC231 D
After the start of timing to create the black image, the PFGATE register of the GAVD
did not assert.
Service Call Tables
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