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No.
Sensor Name/
Sensor Board Name
Active
CN No./
Pin No.
Condition
Symptom
29
Duplex Exit Sensor
L
CN126/A11
Open
• Paper is not
detected.
• Jam Z
Short
• Paper is detected.
• Jam Z
30
By-pass Paper End
Sensor
L
CN126/B8
Open
• Paper end is not
detected.
• Jam A
Shorted
• Paper end is
detected.
31
Inverter Sensor
L
CN126/A2
Open
• Paper is not
detected.
• Jam Z
Shorted
• Paper is detected.
• Jam Z
32
Fusing Exit Sensor
H
CN104/12
Open
Jam C
Shorted
Optional Paper Feed Unit
No.
Sensor Name/
Sensor Board Name
Active
CN No./
Pin No.
Condition
Symptom
1
Paper Size Sensor
A
CN103/1, 2,
3
Open
Paper size error
Shorted
2
Tray Set Sensor
L
CN103/7
Open
Tray is not detected.
Shorted
Tray is detected.
3
Paper Height Sensor
1/2
A
CN101/10,
13
Open
Remaining paper volume
is wrong.
Shorted
6. Troubleshooting
632
Summary of Contents for SP C440dn
Page 1: ...Model Z P2 Machine Codes M257 Field Service Manual April 2015...
Page 2: ......
Page 30: ...1 Product Information 28...
Page 73: ...9 Install the securing holder E 10 Reassemble the machine Tray Heater 71...
Page 86: ...3 Preventive Maintenance 84...
Page 92: ...5 Left cover B Right Cover 1 Open the duplex unit A 4 Replacement and Adjustment 90...
Page 128: ...5 Open the upper cover A 4 Replacement and Adjustment 126...
Page 131: ...4 The left stay A x 4 5 Rear holder bracket A x 2 Image Transfer 129...
Page 139: ...3 Remove the two screws 4 ID sensor board bracket A x 1 Image Transfer 137...
Page 141: ...4 Exit the SP mode Image Transfer 139...
Page 146: ...2 Temperature Humidity sensor A x 1 x 1 4 Replacement and Adjustment 144...
Page 187: ...3 Bracket A x 1 4 Release the paper feed unit A x 1 Paper Feed 185...
Page 201: ...5 Inner left upper cover page 94 6 Paper exit unit holder A x 1 Paper Exit 199...
Page 211: ...6 Release the left arm A x 1 Duplex Unit 209...
Page 215: ...3 Duplex lower guide plate A 4 Duplex upper guide plate A x 7 Duplex Unit 213...
Page 220: ...8 Right and left arms A x 2 each 4 Replacement and Adjustment 218...
Page 221: ...9 Duplex By pass motor bracket with the frame A x 6 10 Guide plate A x 4 Duplex Unit 219...
Page 230: ...Controller Box Removal E HVPS CB Board Right Cover Open F BCU 4 Replacement and Adjustment 228...
Page 245: ...5 Disconnect the connector 6 Disconnect the six connectors x 1 Electrical Components 243...
Page 254: ...4 Replacement and Adjustment 252...
Page 564: ...5 System Maintenance Reference 562...
Page 637: ...Model Z P2 Machine Codes M257 Appendices February 2015...
Page 638: ......
Page 640: ...2...
Page 648: ...1 Appendix Specifications 10...
Page 652: ...MEMO 14...
Page 653: ...MEMO 15...
Page 654: ...MEMO 16 EN...