Fixing Kyocera KM6230 Printer Error Codes in details

Fixing Kyocera KM6230 Printer Error Codes in details

– Printer model: Kyocera KM6230
– Fix Error codes on Kyocera KM6230 model and its description:

• Code: C001
• Description: Memory PCB communication problem • Problems with data from memory PCB.
• Causes: Defective memory PCB.
• Remedy: Replace memory PCB and check for correct operation.

• Code: C010
• Description: RAM/ROM problem • Read and write data does not match.
• Causes: Defective main PCB.
• Remedy: Replace the main PCB and check for correct operation.

• Code: C011
• Description: Backup memory data problem • Data in the specified area of the backup memory does not match the specified values.
• Causes: Problem with the backup memory data. Defective backup RAM.
• Remedy: Turn safety switch 1 off and back on and run maintenance item U020 to set the contents of the backup memory data again. If the C011 is displayed after re-setting the backup memory contents, replace the backup RAM.

• Code: C021
• Description: Operation unit PCB communication problem • There is no reply after 20 retries at communication.
• Causes: Poor contact in the connector terminals. Defective main PCB or operation unit PCB.
• Remedy: Check the connection of connectors CN12, CN13 on the main PCB and CN1, CN7 on the operation unit PCB, and the continuity across the connector terminals. Repair or replace if necessary. Replace the main PCB or operation unit PCB and check for correct operation.

• Code: C024
• Description: Printer board communication problem • There is no reply after 20 retries at communication.
• Causes: Poor contact in the connector terminals. Defective main PCB or printer board.
• Remedy: Check the connection of connector CN4 on the main PCB and the connector on the printer board. Repair or replace if necessary. Replace the main PCB or printer board and check for correct operation.

• Code: C026
• Description: Memory PCB communication problem • There is no reply after five retries at transmitting. • There is no reply after five retries at receiving.
• Causes: Poor contact in the connector terminals. Defective main PCB or memory PCB.
• Remedy: Check the connection of connector CN3 on the main PCB and the connector on memory PCB. Repair or replace if necessary. Replace the main PCB or memory PCB and check for correct operation.

• Code: C032
• Description: Side deck communication problem • An error code from the side deck is detected eight times in succession. No communication: there is no reply after 3 retries. Abnormal communication: a communication error (parity or checksum error) is detected five times in succession.
• Causes: Poor contact in the connector terminals. Defective engine PCB. Defective main PCB. Defective side deck main PCB.
• Remedy: Check the connection of connector CN9 on the main PCB and the connector CN3 on the side deck main PCB, and the continuity across the connector terminals. Repair or replace if necessary. Replace the engine PCB and check for correct operation. Replace the main PCB and check for correct operation. Replace the side deck main PCB and check for correct operation.

• Code: C034
• Description: Finisher communication problem • Communication errors from the communication microcomputer on the main PCB: No communication: there is no reply after 3 retries. Abnormal communication: a communication error (parity or checksum error) is detected five times in succession.
• Causes: Poor contact in the connector terminals. Defective engine PCB. Defective main PCB. Defective finisher main PCB.
• Remedy: Check the connection of connectors CN10 on the main PCB and CN2 on the finisher main PCB, and the continuity across the connector terminals. Repair or replace if necessary. Replace the engine PCB and check for correct operation. Replace the main PCB and check for correct operation. Replace the finisher main PCB and check for correct operation.

• Code: C035
• Description: Mailbox communication Problem Communication errors from the communication microcomputer on the main PCB: No communication: there is no reply after 3 retries. Abnormal communication: a communication error (parity or checksum error) is detected five times in succession.
• Causes: Poor contact in the connector terminals. Defective engine PCB. Defective main PCB. Defective mailbox main PCB.
• Remedy: Check the connection of connectors CN10 on the main PCB and CN1 on the mailbox main PCB, and the continuity across the connector terminals. Repair or replace if necessary. Replace the engine PCB and check for correct operation. Replace the main PCB and check for correct operation. Replace the mailbox main PCB and check for correct operation.

• Code: C037
• Description: Communication microcomputer problem • A problem is detected with the communication microcomputer on the main PCB.
• Causes: Defective main PCB.
• Remedy: Replace the main PCB and check for correct operation.

• Code: C038
• Description: Hard disk problem The hard disk cannot be accessed.
• Causes: Poor contact in the connector terminals.Defective hard disk. Defective main PCB.
• Remedy: Check the connection of connectors CN3 on the main PCB and the connector on the memory PCB, and the continuity across the connector terminals. Repair or replace if necessary. Check the connection of connectors CN8 on the power source PCB and the hard disk connector, and the continuity across the connector terminals. Repair or replace if necessary. Replace the hard disk and check for correct operation. Replace the main PCB and check for correct operation.

• Code: C039
• Description: DIMM problem The DIMM on the memory PCB does not operate correctly.
• Causes: DIMM installed incorrectly. Defective DIMM.
• Remedy: Check if the DIMM is inserted into the socket on the memory PCB correctly. Replace the DIMM and check for correct operation.

• Code: C104
• Description: Optical system problem • After AGC, correct input is not obtained at CCD.
• Causes: Insufficient exposure lamp luminosity. Defective main PCB. Incorrect shading position. CCD PCB output problem.
• Remedy: Replace the exposure lamp or inverter PCB. Replace the mainPCB. Adjust the position of the contact glass (shading plate). If the problem still occurs, replace the scanner home position switch. Replace the ISU.

• Code: C200
• Description: Image forming motor problem • LOCK ALM signal remains high for 1 s, 1 s after the drive motor has turned on.
• Causes: Poor contact in the image forming motor connector terminals. Defective image forming motor rotation control circuit. Defective drive transmission system.
• Remedy: Reinsert the connector. Also check for continuity within the connector cable. If none, remedy or replace the cable. Replace the image forming motor. Check if the rollers and gears rotate smoothly. If not, grease the bushings and gears. Check for broken gears and replace if any.

• Code: C210
• Description: Drive motor problem • LOCK ALM signal remains high for 1 s, 1 s after the drive motor has turned on.
• Causes: Poor contact in the drive motor connector terminals. Defective drive motor rotation control circuit. Defective drive transmission system.
• Remedy: Reinsert the connector. Also check for continuity within the connector cable. If none, remedy or replace the cable. Replace the drive motor. Check if the rollers and gears rotate smoothly. If not, grease the bushings and gears. Check for broken gears and replace if any.

• Code: C220
• Description: Paper feed motor problem • LOCK ALM signal remains high for 1 s, 1 s after the paper feed motor has turned on.
• Causes: Poor contact in the paper feed motor connector terminals. Defective paper feed motor rotation control circuit.
• Remedy: Reinsert the connector. Also check for continuity within the connector cable. If none, remedy or replace the cable. Replace the paper feed motor. Check if the rollers and gears rotate smoothly. If not, grease the bushings and gears. Check for broken gears and replace if any.

• Code: C230
• Description: Large paper deck right lift motor problem When the large paper deck of the copier is closed, large paper deck level switch 1 does not turn on within 30 s of the large paper deck right lift motor turning on. During copying, large paper deck level switch 1 does not turn on within 200 ms of the large paper deck right lift motor turning on.
• Causes: Defective drive transmission system. Broken gear or coupling of the large paper deck right lift motor. Defective large paper deck right lift motor. Poor contact in the large paper deck right lift motor connector terminals. Defective large paper deck level switch 1.
• Remedy: Replace the large paper deck right lift motor. Check for continuity across the coil. If none, replace the large paper deck right lift motor. Reinsert the connector. Also check for continuity within the connector cable. If none, remedy or replace the cable. Check if CN9-B3 on the engine PCB goes low when large paper deck level switch 1 is turned on. If not, replace large paper deck level switch 1. Reinsert the connector. Also check for continuity within the connector cable. If none, remedy or replace the cable.

• Code: C231
• Description: Large paper deck left lift motor problem When the large paper deck of the copier is closed, large paper deck level switch 2 does not turn on within 30 s of the large paper deck left lift motor turning on. During copying, large paper deck level switch 2 does not turn on within 200 ms of the large paper deck left lift motor turning on.
• Causes: Poor contact in the large paper deck level switch 1 connector terminals. Broken gear or coupling of the large paper deck left lift motor. Defective large paper deck left lift motor. Poor contact in the large paper deck left lift motor connector terminals. Defective large paper deck level switch 2. Poor contact in the large paper deck level switch 2 connector terminals.
• Remedy: Replace the large paper deck left lift motor. Check for continuity across the coil. If none, replace the large paper deck left lift motor. Reinsert the connector. Also check for continuity within the connector cable. If none, remedy or replace the cable. Check if CN9-B6 on the engine PCB goes low when large paper deck level switch 2 is turned on. If not, replace large paper deck level switch 2. Reinsert the connector. Also check for continuity within the connector cable. If none, remedy or replace the cable.

• Code: C242
• Description: Upper lift motor problem • When the upper cassette is inserted, the upper lift limit switch does not turn on within 4.5 s of the upper lift motor turning on. • During copying, the upper lift limit switch does not turn on within 200 ms of the upper lift motor turning on.
• Causes: Broken gears or couplings of the upper lift motor. Defective upper lift motor. Poor contact in the upper lift motor connector terminals. Defective upper lift limit switch. Poor contact in the upper lift limit switch connector terminals.
• Remedy: Replace the upper lift motor. Check for continuity across the coil. If none, replace the upper lift motor. Reinsert the connector. Also check for continuity within the connector cable. If none, remedy or replace the cable. Check if CN8-9 on the engine PCB goes low when the upper lift limit switch is turned on. If not, replace the upper lift limit switch. Reinsert the connector. Also check for continuity within the connector cable. If none, remedy or replace the cable.

• Code: C243
• Description: Lower lift motor problem • When the lower cassette is inserted, the lower lift limit switch does not turn on within 4.5 s of the lower lift motor turning on. • During copying, the lower lift limit switch does not turn on within 200 ms of the lower lift motor turning on.
• Causes: Broken gears or couplings of the lower lift motor. Defective lower lift motor. Poor contact in the lower lift motor connector terminals. Defective lower lift limit switch. Poor contact in the lower lift limit switch connector terminals.
• Remedy: Replace the lower lift motor. Check for continuity across the coil. If none, replace the lower lift motor. Reinsert the connector. Also check for continuity within the connector cable. If none, remedy or replace the cable. Check if CN8-10 on the engine PCB goes low when the lower lift limit switch is turned on. If not, replace the lower lift limit switch. Reinsert the connector. Also check for continuity within the connector cable. If none, remedy or replace the cable.

• Code: C310
• Description: Scanner carriage problem • The home position is not correct when the power is turned on or at the start of copying using the bypass table.
• Causes: Poor contact in the connector terminals. Defective scanner home position switch. Defective main PCB or scanner motor PCB. Defective scanner motor.
• Remedy: Check the connection of connector CN14 on the main PCB and the continuity across the connector terminals. Repair or replace if necessary. Replace the scanner home position switch. Replace the main PCB or scanner motor PCB and check for correct operation. Replace the scanner motor.

• Code: C400
• Description: Polygon motor synchronization problem • The polygon motor does not reach the stable speed within 15 s of the polygon motor remote signal turning on.
• Causes: Poor contact in the polygon motor connector terminals. Defective polygon motor. Defective power source PCB. Defective engine PCB.
• Remedy: Reinsert the connector. Also check for continuity within the connector cable. If none, remedy or replace the cable. Replace the LSU. Check if 24 V DC is supplied to CN16-5 on the engine PCB. If not, replace the power source PCB. Check if 24 V DC is output from CN15-1 on the engine PCB. If not, replace the engine PCB.

• Code: C401
• Description: Polygon motor steady-state problem • The polygon motor rotation is not stable for 600 ms after the polygon motor rotation has been stabilized.
• Causes: Poor contact in the polygon motor connector terminals. Defective polygon motor. Defective power source PCB. Defective engine PCB.
• Remedy: Reinsert the connector. Also check for continuity within the connector cable. If none, remedy or replace the cable. Replace the LSU. Check if 24 V DC is supplied to CN16-5 on the engine PCB. If not, replace the power source PCB. Check if 24 V DC is output from CN15-1 on the engine PCB. If not, replace the engine PCB.

• Code: C420
• Description: BD steady-state problem • The VTC detects a BD error for 600 ms after the polygon motor rotation has been stabilized.
• Causes: Defective laser diode. Defective polygon motor. Defective main PCB.
• Remedy: Replace the LSU. Replace the LSU. Replace the main PCB.

– Kyocera KM6230 printer Error Codes and quick guide to troubleshooting:

• Code: C510
• Description: Main charger problem • MC ALM signal is detected continuously for 400 ms when MC REM signal is turned on.
• Causes: Defective high-voltage transformer PCB. Leakage during main charging.
• Remedy: Replace the high-voltage transformer PCB. Check and clean the main charger assembly.

• Code: C511
• Description: Transfer charger belt high-voltage problem • TB ALM signal is detected continuously for 400 ms when TB REM signal is turned on.
• Causes: Defective transfer charger belt bias PCB. Leakage during transfer charger belt.
• Remedy: Replace the high-voltage transformer PCB. Check and clean the transfer charger belt.

• Code: C550
• Description: Drum surface potential sensor problem 1 The sensor output is 0.5 V or less when MC REM signal is turned on.
• Causes: Poor contact in the drum surface potential sensor connector theminals. Defective drum surface potential sensor. Defective engine PCB. Defective power source PCB.
• Remedy: Check the connection of connector CN7 on the engine PCB and the continuity across the connector terminals. Repair or replace if necessary. Check if 24 V DC is output from CN7-8 on the engine PCB. If it is, replace the drum surface potential sensor. Check if 24 V DC is output from CN7-8 on the engine PCB. If not, replace the engine PCB. Check if 24 V DC is supplied to CN10-5 on the engine PCB. If not, replace the power source PCB.

• Code: C551
• Description: Drum surface potential sensor problem 2 The sensor output is 4.5 V or more when the MC REM signal is turned on.
• Causes: Defective drum surface potential sensor.
• Remedy: Replace the drum surface potential sensor.

• Code: C560
• Description: Potential problem 1 Maximizing the grid output cannot set the potential.
• Causes: Deteriorated main charger. Grid or main charger shield is dirty. Defective high voltage transformer PCB. Defective engine PCB.
• Remedy: Check the main charger wire and replace it if necessary. Clean the grid or main charger shield if necessary. Replace the high voltage transformer PCB. Replace the engine PCB.

• Code: C561
• Description: Potential problem 2 Minimizing the grid output cannot set the potential.
• Causes: Defective high voltage transformer PCB.
• Remedy: Replace the high voltage transformer PCB.

• Code: C610
• Description: Broken fixing heater wire • The fixing temperature does not increase for 40 s after the fixing heaters have been turned on for warming up. • The fixing temperature remains below 50C/122F for 10 s continuously after the fixing heaters have been turned on during stabilization.
• Causes: Poor contact in the fixing unit thermistor connector terminals. Fixing unit thermistor installed incorrectly. Fixing unit thermostat triggered. Fixing unit heater M or S installed incorrectly. Broken fixing unit heater M or S wire.
• Remedy: Check the connection of connector CN5-12 on the engine PCB and the continuity across the connector terminals. Repair or replace if necessary. Check and reinstall if necessary. Check for continuity. If none, replace the fixing unit thermostat. Check and reinstall if necessary. Check for continuity. If none, replace the fixing unit heater M or S.

• Code: C620
• Description: Abnormally low fixing unit thermistor temperature • The fixing temperature remains below 120C/248F for 10 s.
• Causes: Poor contact in the fixing unit thermistor connector terminals. Broken fixing unit thermistor wire. Fixing unit thermistor installed incorrectly. Fixing unit thermostat triggered. Fixing unit heater M or S installed incorrectly. Broken fixing unit heater M or S wire.
• Remedy: Check the connection of connector CN5-12 on the engine PCB and the continuity across the connector terminals. Repair or replace if necessary. Measure the resistance. If it is , replace the fixing unit thermistor. Check and reinstall if necessary. Check for continuity. If none, replace the fixing unit thermostat. Check and reinstall if necessary. Check for continuity. If none, replace the fixing unit heater M or S.

• Code: C630
• Description: Abnormally high fixing unit thermistor temperature • The fixing temperature exceeds 230C/446F for 10 s. • The fixing unit high temperature detection circuit on the engine PCB detects an abnormally high temperature.
• Causes: Shorted fixing unit thermistor. Broken fixing unit heater control circuit on the power source PCB.
• Remedy: Measure the resistance. If it is 0 , replace the fixing unit thermistor. Replace the power source PCB.

• Code: C640
• Description: Zero-crossing signal problem • The main PCB does not detect the zero-crossing signal (Z CROSS SIG) for the time specified below. At power-on: 3 s Others: 5 s
• Causes: Poor contact in the connector terminals. Defective power source PCB. Defective main PCB.
• Remedy: Check the connection of connectors CN5-5 on the main PCB and CN2-7 on the power source PCB, and the continuity across the connector terminals. Repair or replace if necessary. Check if the zero-crossing signal is output from CN2-7 on the power source PCB. If not, replace the power source PCB. Replace the main PCB if C640 is detected while CN2-7 on the power source PCB outputs the zero-crossing signal.

• Code: C650
• Description: Broken fixing unit thermistor wire The fixing temperature remains at 0C/ 32F for 30 s continuously when the fixing heater is on.
• Causes: Poor contact in the fixing unit thermistor connector terminals. Broken fixing unit thermistor wire.
• Remedy: Check the connection of connector CN5-12 on the engine PCB and the continuity across the connector terminals. Repair or replace if necessary. Measure the resistance. If it is ∞Ω, replace the fixing unit thermistor.

• Code: C710
• Description: Toner sensor problem • The sensor output voltage is outside the range of 0.5 to 4.5 V during copying or in maintenance item U130. • The toner sensor control voltage cannot be set within the range in maintenance item U130.
• Causes: Defective toner sensor. Poor contact in the toner sensor connector terminals. Developer problem.
• Remedy: Replace the toner sensor. Reinsert the connector. Also check for continuity within the connector cable. If none, remedy or replace the cable. Replace the developer.

• Code: C720
• Description: Broken drum thermistor wire The drum thermistor input voltage is 4.5 V or more when the front cover is closed.
• Causes: Broken druterminals.m thermistor wire. Poor contact in the drum thermistor connector
• Remedy: Measure the resistance. If it is ∞Ω, replace the drum thermistor. Reinsert the connector. Also check for continuity within the connector cable. If none, remedy or replace the cable.

• Code: C721
• Description: Shorted drum thermistor The drum thermistor input voltage is 1.2 V or less when the front cover is closed.
• Causes: Broken drum thermistor wire. Defective main PCB.
• Remedy: Measure the resistance. If it is 0 , replace the drum thermistor. Replace the main PCB and check for correct operation.

• Code: C722
• Description: Broken drum heater wire The drum temperature does not change within 5 minutes of the drum heater turning on.
• Causes: Broken drum heater wire. Poor contact in the drum heater connector terminals. Defective power source PCB.
• Remedy: Check for continuity within the drum heater. If none, replace the drum heater. Reinsert the connector. Also check for continuity within the connector cable. If none, remedy or replace the cable. Check if the drum heater turns on when CN16-9 on the engine PCB goes low. If not, replace the power source PCB.

• Code: C730
• Description: Broken external temperature thermistor wire • The input voltage is above 4.5 V.
• Causes: Poor contact in the humidity sensor PCB connector terminals. Defective external temperature thermistor.
• Remedy: Reinsert the connector. Also check for continuity within the connector cable. If none, remedy or replace the cable. Replace the humidity sensor PCB.

• Code: C731
• Description: Short-circuited external temperature thermistor • The input voltage is below 0.5 V.
• Causes: Poor contact in the humidity sensor PCB connector terminals. Defective external temperature thermistor.
• Remedy: Reinsert the connector. Also check for continuity within the connector cable. If none, remedy or replace the cable. Replace the humidity sensor PCB.

• Code: C750
• Description: Toner hopper problem Toner level is not detected when toner empty is detected.
• Causes: Defective toner level sensor. Poor contact in the toner level sensor connector terminals.
• Remedy: Replace the toner level sensor. Reinsert the connector. Also check for continuity within the connector cable. If none, remedy or replace the cable.

• Code: C801
• Description: Finisher paper conveying motor problem • The paper conveying motor lockup signal is detected for 0.5 s or longer.
• Causes: The paper conveying motor connector makes poor contact. The paper conveying motor malfunctions. Defective finisher main PCB.
• Remedy: Reinsert the connector. Also check for continuity within the connector cable. If none, remedy or replace the cable. Replace the paper conveying motor and check for correct operation. Replace the finisher main PCB and check for correct operation.

• Code: C803
• Description: Finisher paper conveying belt problem • An on-to-off or off-to-on state change of the paper conveying belt home position sensor is not detected within 2 s of the paper conveying belt clutch turning on.
• Causes: The paper conveying belt is out of phase. The paper conveying belt clutch malfunctions. The paper conveying belt home position sensor malfunctions. The paper conveying belt home position sensor connector makes poor contact. The internal tray is incorrectly inserted.
• Remedy: Adjust the paper conveying belt so that it is in phase and check for correct operation. Replace the paper conveying belt clutch and check for correct operation. Replace the paper conveying belt home position sensor and check for correct operation. Reinsert the connector. Also check for continuity within the connector cable. If none, remedy or replace the cable. Check whether the internal tray unit or front cover catches are damaged.

• Code: C814
• Description: Finisher tray elevation motor problem • The sort tray is not detected in the home position within 30 s of the start of the tray elevation motor rotation.
• Causes: The tray elevation motor connector makes poor contact. The tray elevation motor malfunctions. Defective finisher main PCB.
• Remedy: Reinsert the connector. Also check for continuity within the connector cable. If none, remedy or replace the cable. Replace the tray elevation motor and check for correct operation. Replace the finisher main PCB and check for correct operation.

• Code: C817
• Description: Finisher front jogger motor problem • While the front jogger is not detected in the home position, the front jogger home position sensor does not detect the jogger within 1.5 s of the start of front jogger motor clockwise rotation. • After the front jogger is detected in the home position, the front jogger home position sensor still detects the jogger within 0.5 s of the start of front jogger motor counterclockwise rotation.
• Causes: The front jogger motor connector makes poor contact. The front jogger motor malfunctions. The front jogger motor home position sensor connector makes poor contact. The front jogger motor home position sensor malfunctions. Defective finisher main PCB.
• Remedy: Reinsert the connector. Also check for continuity within the connector cable. If none, remedy or replace the cable. Replace the front jogger motor and check for correct operation. Reinsert the connector. Also check for continuity within the connector cable. If none, remedy or replace the cable. Replace the front jogger home position sensor and check for correct operation. Replace the finisher main PCB and check for correct operation.

• Code: C818
• Description: Finisher rear jogger motor problem • While the rear jogger is not detected in the home position, the rear jogger home position sensor does not detect the jogger within 1.5 s of the start of rear jogger motor clockwise rotation. • After the rear jogger is detected in the home position, the rear jogger home position sensor still detects the jogger within 0.5 s of the start of rear jogger motor counterclockwise rotation.
• Causes: The rear jogger motor connector makes poor contact. The rear jogger motor malfunctions. The rear jogger motor home position sensor connector makes poor contact. The rear jogger motor home position sensor malfunctions. Defective finisher main PCB.
• Remedy: Reinsert the connector. Also check for continuity within the connector cable. If none, remedy or replace the cable. Replace the rear jogger motor and check for correct operation. Reinsert the connector. Also check for continuity within the connector cable. If none, remedy or replace the cable. Replace the rear jogger home position sensor and check for correct operation. Replace the finisher main PCB and check for correct operation.

• Code: C821
• Description: Finisher front stapler problem • The front stapler home position sensor does not change state from non-detection to detection within 0.2 s of the start of front stapler motor counterclockwise (forward) rotation. • During initialization, the front stapler home position sensor does not change state from non-detection to detection within 0.6 s of the start of front stapler motor clockwise (reverse) rotation.
• Causes: The front stapler connector makes poor contact. The front stapler malfunctions. a) The front stapler is blocked with a staple. b) The front 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 front stapler cartridge, and check the cartridge and the stapling section of the stapler. b) Replace the front stapler and check for correct operation. Replace the finisher main PCB and check for correct operation.

• 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.

• Code: C837
• Description: Booklet stitcher punch motor problem
• Causes: A problem is detected with the punch motor.
• Remedy: See the booklet stitcher service manual.

• Code: C838
• Description: Booklet stitcher punch shift motor problem
• Causes: A problem is detected with the punch shift motor.
• Remedy: See the booklet stitcher service manual.

• Code: C839
• Description: Booklet stitcher swing motor problem
• Causes: A problem is detected with the swing motor.
• Remedy: See the booklet stitcher service manual.

• Code: C840
• Description: Booklet stitcher backup RAM data problem
• Causes: A backup RAM data error is detected.
• Remedy: See the booklet stitcher service manual.

• Code: C841
• Description: Booklet stitcher punch unit backup RAM data problem
• Causes: An error is detected in the punch unit backup RAM data.
• Remedy: See the booklet stitcher service manual.

• Code: C842
• Description: Booklet stitcher positioning plate motor problem
• Causes: A problem is detected with the saddle positioning plate motor.
• Remedy: See the booklet stitcher service manual.

• Code: C843
• Description: Booklet stitcher folding motor problem
• Causes: A problem is detected with the saddle folding motor.
• Remedy: See the booklet stitcher service manual.

• Code: C844
• Description: Booklet stitcher guide motor problem
• Causes: A problem is detected with the saddle guide motor.
• Remedy: See the booklet stitcher service manual.

• Code: C845
• Description: Booklet stitcher jog motor problem
• Causes: A problem is detected with the saddle jog motor.
• Remedy: See the booklet stitcher service manual.

• Code: C846
• Description: Booklet stitcher rear staple motor problem
• Causes: A problem is detected with the saddle rear staple motor.
• Remedy: See the booklet stitcher service manual.

• Code: C847
• Description: Booklet stitcher front staple motor problem
• Causes: A problem is detected with the saddle front staple motor.
• Remedy: See the booklet stitcher service manual.

• Code: C848
• Description: Booklet stitcher thrust motor problem
• Causes: A problem is detected with the saddle thrust motor.
• Remedy: See the booklet stitcher service manual.

• Code: C849
• Description: Booklet stitcher communication error
• Causes: A communication error is detected in the saddle.
• Remedy: See the booklet stitcher service manual.

• Code: C850
• Description: Mailbox drive motor problem • While the mailbox drive motor is driving, synchronization signals do not synchronize continually for 464 ms (motor lockup).
• Causes: Defective mailbox drive motor or mailbox main PCB.
• Remedy: Run a simulation of the mailbox. If there is any problem, replace the mailbox drive motor or the mailbox main PCB and check for correct operation.

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