Konica-Minolta bizhub C750i
Error Codes List page 1
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- Code: C0002
- Description: Paper feed communication error
When the base board (BASEB) is receiving data, a communication error is detected. - Causes: • CPU board (CPUB)
• Base board (BASEB)
• PC control board (PCCB) - Remedy: 1. Turn OFF the main power switch and unplug the power cord. Connect the power cord after 15 sec. or more, and turn ON the main power switch.
2. Correct or replace the connector connection between the main body and the paper feed cabinet if faulty.
3. Check CPUB for proper installation and correct as necessary.
4. Rewrite the firmware.
5. PCCB F11 conduction check
6. Replace PCCB.
7. Replace CPUB.
8. Replace BASEB.
- Code: C0104, C0105
- Description: • C0104: Tray 3/4 feeder transportation motor failure to turn
• C0105: Tray 3/4 feeder transportation motor turning at abnormal timing
• C0104: The control circuit detects motor failure to turn while the motor is turning.
• C0105: The control circuit detects motor turning while the motor remains stationary. - Causes: • Transport motor (M152) • PC control board (PCCB)
- Remedy: 1. Check the connector between M152-PCCB CN5 for proper connection and correct as necessary.
2. Check the connector of M152 for proper drive coupling and correct as necessary.
3. M152 load check • Check code: 28 • Multi code: 51, 52, 53, 54, 55 • Control signal: PCCB CN5-1 to 8 • Location of electrical component: 7-K
4. Replace M152.
5. PCCB F300 conduction check
6. Replace PCCB.
- Code: C0107
- Description: Intermediate motor turning at abnormal timing
• The control circuit detects motor failure to turn while the motor is turning.
• The control circuit detects motor turning while the motor remains stationary. - Causes: • Intermediate motor (M151)
• PC control board (PCCB) - Remedy: 1. Check the connector between M151-relay CN73-PCCB CN20 for proper connection and correct as necessary.
2. Check the connector of M151 for proper drive coupling and correct as necessary.
3. M151 load check • Check code: 28 • Multi code: 56, 57, 58, 59, 60 • Control signal: PCCB CN20-1 to 3 • Location of electrical component: Cabinet (Tray 3/4) 7-K
4. Replace M151.
5. Replace PCCB.
- Code: C0202
- Description: Tray 1 feeder up/down abnormality
The tray 1 upper limit sensor (PS25) is not turned ON (blocked) even after the set period of time has elapsed after the paper lift-up operation for the drawer began. - Causes: • Tray 1 lift-up motor (M12)
• Tray 1 upper limit sensor (PS25)
• CPU board (CPUB)
• Base board (BASEB) - Remedy: 1. Remove the tray and check to see if a piece of paper is not left inside the machine.
2. Check the connector between M12-relay CN180-BASEB CN25E for proper connection and correct as necessary.
3. Check the connector of M12 for proper drive coupling and correct as necessary.
4. Check the connector between PS25-relay CN30-BASEB CN26E for proper connection and correct as necessary.
5. Check CPUB for proper installation and correct as necessary.
6. PS25 I/O check, sensor check • Control signal: BASEB CN26EA-15 (ON) • Location of electrical component: 11-K 7. M12 load check • Check code: 23 • Multi code: 4 • Control signal: BASEB CN25E-1 (REM) • Location of electrical component: 17-K
8. Replace M12.
9. Replace CPUB.
10. Replace BASEB.
- Code: C0204
- Description: Tray 2 feeder up/down abnormality
The tray 2 upper limit sensor (PS22) is not turned ON (blocked) even after the set period of time has elapsed after the paper lift-up operation for the drawer began. - Causes: • Tray 2 lift-up motor (M13)
• Tray 2 upper limit sensor (PS22)
• CPU board (CPUB)
• Base board (BASEB) - Remedy: 1. Remove the tray and check to see if a piece of paper is not left inside the machine.
2. Check the connector between M13-relay CN181-BASEB CN25E for proper connection and correct as necessary.
3. Check the connector of M13 for proper drive coupling and correct as necessary.
4. Check the connector between PS22-relay CN40-BASEB CN23E for proper connection and correct as necessary.
5. Check CPUB for proper installation and correct as necessary.
6. PS22 I/O check, sensor check • Control signal: BASEB CN23E-12 (ON) • Location of electrical component: 16-K
7. M13 load check • Check code: 23 • Multi code: 5 • Control signal: BASEB CN25E-10 (REM) • Location of electrical component: 18-K
8. Replace M13.
9. Replace CPUB.
10. Replace BASEB.
- Code: C0206
- Description: Tray 3 feeder up/down abnormality
The tray 3 upper limit sensor (PS156) is not turned ON (blocked) even after the set period of time has elapsed after the paper lift-up operation for the drawer began. - Causes: • Tray 3 lift-up motor (M143)
• Tray 3 upper limit sensor (PS156)
• PC control board (PCCB)
• CPU board (CPUB)
• Base board (BASEB) - Remedy: 1. Remove the tray and check to see if a piece of paper is not left inside the machine.
2. Check the connector between M143-PCCB CN6 for proper connection and correct as necessary.
3. Check the connector of M143 for proper drive coupling and correct as necessary.
4. Check the connector between PS156-relay CN25-PCCB CN7 for proper connection and correct as necessary.
5. Check CPUB for proper installation and correct as necessary.
6. PS156 I/O check, sensor check • Control signal: PCCB CN7-9 (ON) • Location of electrical component: PC-417 4-C
7. M143 load check • Check code: 23 • Multi code: 6 • Control signal: PCCB CN6-4 to 5 • Location of electrical component: PC-417 5-K
8. Replace M143.
9. PCCB PS300 conduction check
10. Replace PCCB.
11. Replace CPUB.
12. Replace BASEB.