• Code: C2561
• Description: Cyan TCR sensor failure. The input of each color TCR sensor is 0. This detection is used for detecting disconnection of TCR sensor connector.
• Causes: • Imaging unit/Y,M,C • Developing unit/K • MFP board (MFPB)
• Remedy: 1. Reinstall the imaging unit. 2. Reinstall the developing unit/K. 3. Check the connector between the imaging unit or developing unit/K-relay CN161,CN162,CN163,CN164-relay CN15-MFPB CN18E for proper connection and correct as necessary. 4. Replace the the corresponding imaging unit. 5. Replace the developing unit/K. 6. Replace MFPB. NOTICE • Link to the layout drawings for related parts by each trouble code (S.44. C2552, C2559, C2561, C2A11) • Link to the layout drawings for related parts by each trouble code (S.46. C2554, C255A, C2562, C2A12) • Link to the layout drawings for related parts by each trouble code (S.48. C2556, C255B, C2563, C2A13) • Link to the layout drawings for related parts by each trouble code (S.42. C2414, C2558, C255C, C2564)

• Code: C2562
• Description: Magenta TCR sensor failure. The input of each color TCR sensor is 0. This detection is used for detecting disconnection of TCR sensor connector.
• Causes: • Imaging unit/Y,M,C • Developing unit/K • MFP board (MFPB)
• Remedy: 1. Reinstall the imaging unit. 2. Reinstall the developing unit/K. 3. Check the connector between the imaging unit or developing unit/K-relay CN161,CN162,CN163,CN164-relay CN15-MFPB CN18E for proper connection and correct as necessary. 4. Replace the the corresponding imaging unit. 5. Replace the developing unit/K. 6. Replace MFPB. NOTICE • Link to the layout drawings for related parts by each trouble code (S.44. C2552, C2559, C2561, C2A11) • Link to the layout drawings for related parts by each trouble code (S.46. C2554, C255A, C2562, C2A12) • Link to the layout drawings for related parts by each trouble code (S.48. C2556, C255B, C2563, C2A13) • Link to the layout drawings for related parts by each trouble code (S.42. C2414, C2558, C255C, C2564)

• Code: C2563
• Description: Yellow TCR sensor failure. The input of each color TCR sensor is 0. This detection is used for detecting disconnection of TCR sensor connector.
• Causes: • Imaging unit/Y,M,C • Developing unit/K • MFP board (MFPB)
• Remedy: 1. Reinstall the imaging unit. 2. Reinstall the developing unit/K. 3. Check the connector between the imaging unit or developing unit/K-relay CN161,CN162,CN163,CN164-relay CN15-MFPB CN18E for proper connection and correct as necessary. 4. Replace the the corresponding imaging unit. 5. Replace the developing unit/K. 6. Replace MFPB. NOTICE • Link to the layout drawings for related parts by each trouble code (S.44. C2552, C2559, C2561, C2A11) • Link to the layout drawings for related parts by each trouble code (S.46. C2554, C255A, C2562, C2A12) • Link to the layout drawings for related parts by each trouble code (S.48. C2556, C255B, C2563, C2A13) • Link to the layout drawings for related parts by each trouble code (S.42. C2414, C2558, C255C, C2564)

• Code: C2564
• Description: Black TCR sensor failure. The input of each color TCR sensor is 0. This detection is used for detecting disconnection of TCR sensor connector.
• Causes: • Imaging unit/Y,M,C • Developing unit/K • MFP board (MFPB)
• Remedy: 1. Reinstall the imaging unit. 2. Reinstall the developing unit/K. 3. Check the connector between the imaging unit or developing unit/K-relay CN161,CN162,CN163,CN164-relay CN15-MFPB CN18E for proper connection and correct as necessary. 4. Replace the the corresponding imaging unit. 5. Replace the developing unit/K. 6. Replace MFPB. NOTICE • Link to the layout drawings for related parts by each trouble code (S.44. C2552, C2559, C2561, C2A11) • Link to the layout drawings for related parts by each trouble code (S.46. C2554, C255A, C2562, C2A12) • Link to the layout drawings for related parts by each trouble code (S.48. C2556, C255B, C2563, C2A13) • Link to the layout drawings for related parts by each trouble code (S.42. C2414, C2558, C255C, C2564)

• Code: C2650
• Description: Main backup media access error. • The re-written data, which has been read out, checked and founded as error, is read out again and found as error. • The error was found when reading out the counter value. • The main body detects that the EEPROM is not mounted.
• Causes: • EEPROM/1 • EEPROM/2 • MFP board (MFPB)
• Remedy: 1. Make sure that EEPROM/1 and EEPROM/2 are mounted in their respective correct positions. 2. Check to see if the EEPROM is mounted in a reverse direction. 3. Check the connector from MFPB to EEPROM for proper connection and correct as necessary. 4. Replace MFPB. 5. Replace EEPROM/1 and EEPROM/2. 1. Replace the current EEPROM with a new one. 2. Replace the following components with new ones. When the transfer belt unit and the fusing unit have been replaced with new ones, perform [New Release] in the service mode. When the transfer roller has been replaced with a new one, perform [Counter clear]. • Imaging unit/Y,M,C • Developing unit/K • Drum unit/K • Transfer belt unit • Fusing unit • Transfer roller • Feed roller, pick-up roller, separation roller (including options) 3. Turn ON the main power switch and check to see that warm-up is started. Make sure that malfunction codes other than C2650 or improper IU/TC placement is not detected. 4. Make the specified readjustments. 6. If the above actions do not solve the problem, contact KM. NOTICE • Link to the layout drawings for related parts by each trouble code (S.50. C2650, CC163)

• Code: C2A11
• Description: Imaging unit/C new article release. The status with the new unit is not cleared after the new imaging unit or new drum unit is set.
• Causes: • Imaging unit/Y,M,C • Drum unit/K • MFP board (MFPB)
• Remedy: 1. Clean the connection between the imaging unit or drum unit/K and the machine if dirty. 2. Reinstall the imaging unit. 3. Reinstall the drum unit/K. 4. Check the connector between the imaging unit/Y,M,C-relay CN162,CN163,CN164-relay CN15-MFPB CN18E for proper connection and correct as necessary. 5. Check the connector between the drum unit/K-relay CN14-MFPB CN15E for proper connection and correct as necessary. 6. Replace the the corresponding imaging unit. 7. Replace the drum unit/K. 8. Replace MFPB. NOTICE • Link to the layout drawings for related parts by each trouble code (S.44. C2552, C2559, C2561, C2A11) • Link to the layout drawings for related parts by each trouble code (S.46. C2554, C255A, C2562, C2A12) • Link to the layout drawings for related parts by each trouble code (S.48. C2556, C255B, C2563, C2A13) • Link to the layout drawings for related parts by each trouble code (S.51. C2A14)

• Code: C2A12
• Description: Imaging unit/M new article release. The status with the new unit is not cleared after the new imaging unit or new drum unit is set.
• Causes: • Imaging unit/Y,M,C • Drum unit/K • MFP board (MFPB)
• Remedy: 1. Clean the connection between the imaging unit or drum unit/K and the machine if dirty. 2. Reinstall the imaging unit. 3. Reinstall the drum unit/K. 4. Check the connector between the imaging unit/Y,M,C-relay CN162,CN163,CN164-relay CN15-MFPB CN18E for proper connection and correct as necessary. 5. Check the connector between the drum unit/K-relay CN14-MFPB CN15E for proper connection and correct as necessary. 6. Replace the the corresponding imaging unit. 7. Replace the drum unit/K. 8. Replace MFPB. NOTICE • Link to the layout drawings for related parts by each trouble code (S.44. C2552, C2559, C2561, C2A11) • Link to the layout drawings for related parts by each trouble code (S.46. C2554, C255A, C2562, C2A12) • Link to the layout drawings for related parts by each trouble code (S.48. C2556, C255B, C2563, C2A13) • Link to the layout drawings for related parts by each trouble code (S.51. C2A14)

• Code: C2A13
• Description: Imaging unit/Y new article release. The status with the new unit is not cleared after the new imaging unit or new drum unit is set.
• Causes: • Imaging unit/Y,M,C • Drum unit/K • MFP board (MFPB)
• Remedy: 1. Clean the connection between the imaging unit or drum unit/K and the machine if dirty. 2. Reinstall the imaging unit. 3. Reinstall the drum unit/K. 4. Check the connector between the imaging unit/Y,M,C-relay CN162,CN163,CN164-relay CN15-MFPB CN18E for proper connection and correct as necessary. 5. Check the connector between the drum unit/K-relay CN14-MFPB CN15E for proper connection and correct as necessary. 6. Replace the the corresponding imaging unit. 7. Replace the drum unit/K. 8. Replace MFPB. NOTICE • Link to the layout drawings for related parts by each trouble code (S.44. C2552, C2559, C2561, C2A11) • Link to the layout drawings for related parts by each trouble code (S.46. C2554, C255A, C2562, C2A12) • Link to the layout drawings for related parts by each trouble code (S.48. C2556, C255B, C2563, C2A13) • Link to the layout drawings for related parts by each trouble code (S.51. C2A14)