Ricoh D124-17 Service Manual page 611

SC508-03 D Cutter Operation Error
The cutter return switch on the left end of the cutter unit did not switch on
within 3 sec. after the cutter motor switched on.
SC508-04 D
SC520-01 D
SC520-02 Vertical Paper Feed Hardware Error
DSP (Digital Signal Processing) responded with a hardware error.
SC520-03 D Vertical Paper Feed Operation Direction Error
DSP (Digital Signal Processing) responded with a direction movement error.
• Something is blocking the cutter in its track
• The cutter drive belt is jammed
Cutter Home Position Switch Error
The cutter HP switch on the right end of the cutter unit did not switch on within
3 sec. after the cutter motor reversed to return the cutter to the home position
on the right.
• Something is blocking the cutter in its track
• The cutter drive belt is jammed
Vertical Paper Feed Mechanism Communication Error
No response from DSP (Digital Signal Processing) that controls intermittent
feed from the paper rollers.
• Cycle the machine off/on
• Check the harness connections between the roll unit and the MCU, and
RFDB if Roll Unit 2 is installed
• MCU defective
• Roll paper feed motor harness loose, broken, defective
• Encoder sensor harness or encoder wheel loose, broken, defective
• Motor defective
• MCU defective
SC500: Paper Feed, Transport
609