LASER CLASS 730i/720i/710 Chapter 4: Maintenance and Service
4-40
DWS sensor fails to operate properly.
(1) Check whether the actuator of DWS sensor is in correct position.
(2) Check the connection between the ADF sensor board (J1) and the SCNT board
(J805).
(3) Replace the ADF sensor board.
(4) Replace the SCNT board.
DFS sensor fails to operate properly.
(1) Check whether the actuator of DFS sensor is in correct position.
(2) Check the connection between the ADF sensor board (J1) and the SCNT board
(J805).
(3) Replace the ADF sensor board.
(4) Replace the SCNT board.
Cassette 1 paper sensor fails to operate properly.
(1) Check whether the actuator of recording paper sensor is in correct position.
(2) Check the connection between the recording paper sensor and the EPU board (J305).
(3) Check the connection between the ECU board (J901) and the EPU board (J401).
(4) Check the connection between the ECU board (J912) and the SCNT board (J35).
(5) Replace the Cassette 1 paper sensor.
(6) Replace the EPU board.
(7) Replace the ECU board.
(8) Replace the SCNT board.
Cassette 2 paper sensor fails to operate properly.
(1) Check whether the actuator of recording paper sensor is in correct position.
(2) Check the connection between the recording paper sensor and the 250 feeder board
(J2003).
(3) Check the connection between the ECU board (J902) and the 250 feeder board
(J2001).
(4) Check the connection between the ECU board (J912) and the SCNT board (J35).
(5) Replace the Cassette 2 paper sensor.
(6) Replace the 250 feeder board.
(7) Replace the ECU board.
(8) Replace the SCNT board.
Cassette 3 paper sensor fails to operate properly.
(1) Check whether the actuator of recording paper sensor is in correct position.
(2) Check the connection between the recording paper sensor and the 500 feeder board
(J2003).
(3) Check the connection between the ECU board (J902) and the 500 feeder board
(J2001).
(4) Check the connection between the ECU board (J912) and the SCNT board (J35).
(5) Replace the Cassette 3 paper sensor.
(6) Replace the 500 feeder board.
Summary of Contents for LASER CLASS 730i
Page 9: ...VIII This page intentionally left blank...
Page 10: ...Chapter 1 General Description manuals4you com manuals4you com...
Page 41: ...Chapter 2 Technical Reference...
Page 62: ...Chapter 3 Assembly and Disassembly manuals4you com manuals4you com...
Page 83: ...Chapter 4 Maintenance and Service...
Page 208: ...Chapter 5 Appendix manuals4you com manuals4you com...
Page 239: ...LASER CLASS 730i 720i 710 Chapter 5 Appendix 5 31 Figure 5 32 Handset Installation 2...
Page 295: ...1102IP CANON INC...
Page 296: ...manuals4you com manuals4you com...
Page 300: ...III This page intentionally left blank manuals4you com manuals4you com...
Page 345: ...2 31 LASER CLASS 730i 720i 710 2 PARTS LAYOUT PARTS LIST FIGURE 16 DOCUMENT TRAY ASS Y 1...
Page 379: ...2 65 LASER CLASS 730i 720i 710 2 PARTS LAYOUT PARTS LIST FIGURE 33 NCU BOARD ASS Y T1 T51...
Page 381: ...2 67 LASER CLASS 730i 720i 710 2 PARTS LAYOUT PARTS LIST FIGURE 34 ECU BOARD ASS Y 2 1 IC901...
Page 383: ...2 69 LASER CLASS 730i 720i 710 2 PARTS LAYOUT PARTS LIST FIGURE 35 EPU BOARD ASS Y 4 2 3 1 4...
Page 409: ...2 95 LASER CLASS 730i 720i 710 2 PARTS LAYOUT PARTS LIST FIGURE 48 PCL UNIT 3 2 4 5 IC2 1...
Page 415: ...3 1 3 1 3 TOOL LASER CLASS 730i 720i 710 3 TOOL FIGURE 51 TOOLS T2 T1 T3...
Page 436: ...1102GR CANON INC manuals4you com manuals4you com...