• Code: C822
• Description: Finisher rear stapler problem • The rear stapler home position sensor does not change state from non-detection to detection within 0.2 s of the start of rear stapler motor counterclockwise (forward) rotation. • During initialization, the rear stapler home position sensor does not change state from non-detection to detection within 0.6 s of the start of rear stapler motor clockwise (reverse) rotation.
• Causes: The rear stapler connector makes poor contact. The rear stapler malfunctions. a) The rear stapler is blocked with a staple. b) The rear stapler is broken. Defective finisher main PCB.
• Remedy: Reinsert the connector. Also check for continuity within the connector cable. If none, remedy or replace the cable. a) Remove the rear stapler cartridge, and check the cartridge and the stapling section of the stapler. b) Replace the rear stapler and check for correct operation. Replace the finisher main PCB and check for correct operation.

• Code: C830
• Description: Booklet stitcher shutter unit error
• Causes: A shutter unit error is detected.
• Remedy: See the booklet stitcher service manual.

• Code: C831
• Description: Booklet stitcher paper ejection motor problem
• Causes: A problem is detected with the paper ejection motor.
• Remedy: See the booklet stitcher service manual.

• Code: C832
• Description: Booklet stitcher elevation motor problem
• Causes: A problem is detected with the elevation motor.
• Remedy: See the booklet stitcher service manual.

• Code: C833
• Description: Booklet stitcher jog motor problem
• Causes: A problem is detected with the jog motor.
• Remedy: See the booklet stitcher service manual.

• Code: C834
• Description: Booklet stitcher staple motor problem
• Causes: A problem is detected with the staple motor.
• Remedy: See the booklet stitcher service manual.

• Code: C835
• Description: Booklet stitcher stapler unit shift motor problem
• Causes: A problem is detected with the stapler unit shift motor.
• Remedy: See the booklet stitcher service manual.

• Code: C836
• Description: Booklet stitcher stack level detection sensor problem
• Causes: A problem is detected with the stack level detection sensor.
• Remedy: See the booklet stitcher service manual.