Fixing Kyocera KM2020 Printer Error Codes in details
– Printer model: Kyocera KM2020
– Fix Error codes on Kyocera KM2020 model and its description:
- Code: C010
- Description: Backup memory read/write problem (main PCB)
• Read and write data does not match. - Causes: Defective backup RAM or main PCB.
- Remedy: Replace the main PCB and check for correct operation.
- Code: C011
- Description: Backup memory data problem (main PCB)
• 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 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 or main PCB.
- Code: C015
- Description: Backup memory read/write problem (engine PCB)
• Read and write data does not match. - Causes: Defective backup RAM or engine PCB.
- Remedy: Replace the engine PCB and check for correct operation.
- Code: C016
- Description: Backup memory data problem (engine PCB)
• 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 off and back on and run maintenance item U020 to set the contents of the backup memory data again. If the C016 is displayed after re-setting the backup memory contents, replace the backup RAM or engine PCB.
- Code: C017
- Description: Accounting count problem
• When the power is turned on, the total count and the scan count are abnormal both on the main PCB and the engine PCB. - Causes: Defective main PCB or engine PCB.
- Remedy: Replace the main PCB or engine PCB and check for correct operation.
- Code: C018
- Description: Machine number mismatch
• When the power is turned on, the machine number does not match between the main PCB and the engine PCB. - Causes: Correct EEPROM is not installed. Data damage of EEPROM.
- Remedy: Install the correct EEPROM. If it does not solve the problem, contact the Service Administrative Division. Contact the Service Administrative Division.
- Code: C021
- Description: Communication problem between the main PCB and engine board PCB
• When the power is turned on, the machine does not detect the low level of SBSY and the high level of SDIR for three seconds. - Causes: Poor contact in the connector terminals. Defective main PCB or engine PCB.
- Remedy: Check the connection of connectors YC6 on the main PCB and YC1 on the engine PCB, and the continuity across the connector terminals. Repair or replace if necessary. Replace the main PCB or engine PCB and check for correct operation.
- Code: C041
- Description: Optional DP communication problem
• Communication fails five times successively. - Causes: DP installed incorrectly. Defective main PCB or DP driver PCB.
- Remedy: Check the installation state of the DP and adjust it if it is not properly installed. Replace the main PCB or DP driver PCB and check for correct operation.
- Code: C042
- Description: Optional first paper feeder communication problem
• Communication fails five times successively. - Causes: Paper feeder installed incorrectly. Defective main PCB or drawer main PCB.
- Remedy: Check the installation state of the paper feeder and adjust it if it is not properly installed. Replace the main PCB or drawer main PCB and check for correct operation.
- Code: C050
- Description: Optional second paper feeder communication problem
• Communication fails five times successively. - Causes: Paper feeder installed incorrectly. Defective main PCB or drawer main PCB.
- Remedy: Check the installation state of the paper feeder and adjust it if it is not properly installed. Replace the main PCB or drawer main PCB and check for correct operation.
- Code: C051
- Description: Optional third paper feeder communication problem
• Communication fails five times successively. - Causes: Paper feeder installed incorrectly. Defective main PCB or drawer main PCB.
- Remedy: Check the installation state of the paper feeder and adjust it if it is not properly installed. Replace the main PCB or drawer main PCB and check for correct operation.
- Code: C061
- Description: Bitmap (DIMM) problem
• There is a problem with the data or address bus of the bitmap DRAM. - Causes: Defective main PCB. DIMM installed incorrectly. Defective DIMM.
- Remedy: Replace the main PCB and check for correct operation. Check if the DIMM is inserted into the socket on the main PCB correctly. Replace the DIMM and check for correct operation.
- Code: C062
- Description: Memory input interface problem
• Reading-in of an image does not complete within 10 s of the start of image transmission. - Causes: Defective main PCB.
- Remedy: Replace the main PCB and check for correct operation.
- Code: C063
- Description: DMA problem
• DMA transmission of compressed, decompressed, rotated, relocated or blanked-out image data does not complete within the specified period of time. - Causes: Defective main PCB.
- Remedy: Replace the main PCB and check for correct operation.
- Code: C080
- Description: Image processing problem
• JAM05 is detected twice. - Causes: Defective engine PCB.
- Remedy: Replace the engine PCB and check for correct operation.
- Code: C200
- 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 main 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: C310
- Description: Scanner carriage problem
• The home position is not correct when the power is turned on or copying the document placed on the contact glass. - Causes: Poor contact of the connector terminals. Defective scanner home position switch. Defective engine PCB. Defective scanner motor.
- Remedy: Reinsert the connector. Also check for continuity within the connector cable. If none, remedy or replace the cable. Replace the scanner home position switch. Replace the engine PCB and check for correct operation. Replace the scanner motor.
- Code: C320
- Description: Exposure lamp problem
• In indicator check before starting copying, the average value in scanning of the shading plate with the CCD is 128 or more. - Causes: Poor contact of the connector terminals. Defective exposure lamp or inverter board. Defective engine PCB. Incorrect shading position.
- Remedy: Reinsert the connector. Also check for continuity within the connector cable. If none, remedy or replace the cable. Replace the exposure lamp or inverter board. Replace the engine PCB and check for correct operation. Adjust the position of the contact glass (shading plate). If the problem still occurs, replace the scanner home position switch.
- Code: C330
- Description: Optical system (AGC) problem
• After AGC, correct input is not obtained at CCD. - Causes: Insufficient exposure lamp luminosity. Defective engine PCB. Incorrect shading position.
- Remedy: Replace the exposure lamp or inverter board. Replace the engine PCB and check for correct operation. Adjust the position of the contact glass (shading plate). If the problem still occurs, replace the scanner home position switch.
- Code: C400
- Description: Polygon motor synchronization problem
• The polygon motor does not reach the stable speed within 15 s of the START signal turning on. - Causes: Poor contact in the polygon motor connector terminals. Defective polygon motor. 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. Replace the engine PCB and check for correct operation.
- Code: C401
- Description: Polygon motor steady-state problem
• The polygon motor rotation is not stable for 5 s after the polygon motor rotation has been stabilized. - Causes: Poor contact in the polygon motor connector terminals. Defective polygon motor. 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. Replace the engine PCB and check for correct operation.
- Code: C420
- Description: BD steady-state problem
• The MIC detects a BD error for 600ms after the polygon motor rotation has been stabilized. - Causes: Defective laser diode. Defective polygon motor. Defective main PCB. Defective engine PCB.
- Remedy: Replace the LSU. Replace the LSU. Replace the main PCB and check for correct operation. Replace the engine PCB and check for correct operation.
- Code: C600
- Description: Broken fixing heater wire
• In fixing warm-up, the time to reach 50°C/122 °F exceeds 13.5 s, the time to reach 100°C/212 °F exceeds 10 s, the time to reach the primary stabilization exceeds 10 s or the time to reach the secondary stabilization exceeds 24 s. - Causes: Poor contact in the thermistor connector terminals. Fixing thermistor installed incorrectly. Fixing thermostat triggered. Fixing heater M or S installed incorrectly. Broken fixing heater M or S wire.
- Remedy: Reinsert the connector. Also check for continuity within the connector cable. If none, remedy or replace the cable. Check and reinstall if necessary. Check for continuity. If none, replace the fixing thermostat. Check and reinstall if necessary. Check for continuity. If none, replace the heater lamp.
- Code: C602
- Description: Abnormally high fixing unit thermistor temperature
• The fixing temperature exceeds 230°C/446 °F for 40 ms. - Causes: Shorted thermistor. Broken heater control circuit on the power supply PCB.
- Remedy: Measure the resistance. If it is 0 Ω, replace the thermistor. Replace the power supply PCB and check for correct operation.
– Kyocera KM2020 printer Error Codes and quick guide to troubleshooting:
- Code: C605
- Description: Abnormally low fixing unit thermistor temperature
• The fixing temperature remains below 90°C/194°F for 1 s. - Causes: Poor contact in the thermistor connector terminals. Broken fixing thermistor wire. Fixing thermistor installed incorrectly. Fixing thermostat triggered. Fixing heater M or S installed incorrectly. Broken fixing heater M or S wire.
- Remedy: Reinsert the connector. Also check for continuity within the connector cable. If none, remedy or replace the cable. Measure the resistance. If it is ∞Ω, replace the fixing thermistor. Check and reinstall if necessary. Check for continuity. If none, replace the fixing thermostat. Check and reinstall if necessary. Check for continuity. If none, replace the fixing heater M or S.
- Code: C640
- Description: Zero-crossing signal problem
• The engine PCB does not detect the zero-crossing signal for the time specified below. At power-on: 3 s Others: 5 s - Causes: Poor contact in the connector terminals. Defective power supply PCB. Defective engine PCB.
- Remedy: Reinsert the connector. Also check for continuity within the connector cable. If none, remedy or replace the cable. Check if the zero-crossing signal is output from CN2-5 on the power supply PCB. If not, replace the power supply PCB. Replace the engine PCB if C640 is detected while CN2-5 on the power supply PCB outputs the zero-crossing signal.
- Code: C780
- Description: Broken external temperature thermistor
• The input voltage is 0.5 V or less. - Causes: Poor contact in the humidity sensor connector terminals. Defective humidity sensor.
- Remedy: Reinsert the connector. Also check for continuity within the connector cable. If none, remedy or replace the cable. Replace the drawer PCB and check for correct operation.
- Code: C781
- Description: Short-circuited external temperature thermistor
• The input voltage is 4.5 V or more. - Causes: Defective humidity sensor. Poor contact in the humidity sensor connector terminals. Defective humidity sensor.
- Remedy: Reinsert the connector. Also check for continuity within the connector cable. If none, remedy or replace the cable. Replace the drawer PCB and check for correct operation.
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