DP4500/3500 TROUBLESHOOTING
5 - 64
December 2000 © TOSHIBA TEC
[C82] Read sensor adjustment error
(1) Check if there is any foreign object between the read sensor and the reflecting mirror. Check if the
reflecting mirror is dirty.
(2) Check if the harness connecting the read sensor and the ADF control board is open-circuited.
(3) Check the circuits and connectors on the ADF control board, mainly IC3, IC4 and CN6, for short- and
open-circuited.
(4) Replace the read sensor.
(5) Replace the ADF control board.
(6) Initialize the EEPROM and perform automatic sensor adjustment of the ADF.
[C83] Original length sensor adjustment error
(1) Check if there is any foreign object between the original length sensor and reflecting mirror. Check if
the reflecting mirror is dirty.
(2) Check if the harness connecting the original length sensor and the ADF control board is open-circuited.
(3) Check the circuits and connectors on the ADF control board, mainly IC3, IC4 and CN3, for short- and
open-circuits.
(4) Replace the original length sensor.
(5) Replace the ADF control board.
(6) Initialize the EEPROM and perform the automatic sensor adjustment of the ADF.
Summary of Contents for DP3500
Page 91: ...DP4500 3500 PREVENTIVE MAINTENANCE 3 12 December 2000 TOSHIBA TEC ...
Page 95: ...DP4500 3500 SUPPLIES 4 4 December 2000 TOSHIBA TEC ...
Page 213: ...DP4500 3500 TROUBLESHOOTING 5 118 December 2000 TOSHIBA TEC ...
Page 253: ...DP4500 3500 UPDATING THE FIRMWARE 6 40 December 2000 TOSHIBA TEC ...
Page 256: ...DP4500 3500 WIRE HARNESS CONNECTION DIAGRAMS 7 4 December 2000 TOSHIBA TEC ...