5–4
TROUBLESHOOTING FEEDING FAULTS
4
Duplexing Unit (during stacking operation)
Cause
Duplexing unit inlet
sensor (PS15)
Set-back motor
(M5)
Remedy
Replace the sensor.
Replace the motor.
Yes/No
NO
NO
Checks
Is the duplexing inlet sensor
(PS15) normal?
Does the set-back roller rotate
clockwise and counterclockwise at
specific timing?
Step
1
2
Remedy
Replace the faulty
sensor.
Replace the motor.
Yes/No
NO
NO
Checks
Are the following sensors normal?
• duplexing outlet paper sensor
(PS14)
• duplexing horizontal registration
paper sensor (PS17)
• duplexing pre-registration paper
sensor (PS18)
Does the set-back roller rotate
clockwise and counterclockwise at
specific timing?
Step
1
2
5
Duplexing Unit (during re-pick up operation)
Cause
Sensor
Set-back motor
(M5)
Содержание NP6621
Страница 4: ...ii ...
Страница 8: ...vi ...
Страница 48: ...3 2 IMAGE FAULTS ...
Страница 49: ...3 3 IMAGE FAULTS NOT USED ...
Страница 50: ...3 4 IMAGE FAULTS B Image Fault Samples not available ...
Страница 80: ...4 16 TROUBLESHOOTING MALFUNCTIONS ...
Страница 98: ...6 8 ARRANGEMENT AND FUNCTIONS OF THE ELECTRICAL PARTS D PCBs Figure 6 603 1 2 3 4 5 6 7 8 9 10 11 12 ...
Страница 108: ...6 18 ARRANGEMENT AND FUNCTIONS OF THE ELECTRICAL PARTS 4 Fixing Heater Driver PCB Figure 6 611 J402 1 J401 W1 W2 ...
Страница 134: ...A 4 APPENDIX ...
Страница 135: ...A 5 APPENDIX C GENERAL CIRCUIT DIAGRAM not available ...
Страница 136: ...A 6 APPENDIX ...
Страница 144: ...A 14 APPENDIX ...