Description: Drive Home Sensor malfunction
• The Scanner Home Sensor is unable to detect the Scanner located at its home position. • The Scanner Home Sensor is unable to detect a Scanner even when the Scanner Motor has been driven to move the Scanner over the maximum traveling distance. • The Scanner Home Sensor detects the Scanner when the Scanner has moved 5 mm from the position, at which it blocks the Scanner Home Sensor.
Remedy: 1 Correct or change the Scanner drive (cable, pulley, gear, belt) if it is faulty. 2 Correct the Scanner Motor set screw if loose. 3 Adjust [Image Position Leading Edge] and [Feed Direction Adjustment]. 4 Check the PC201, M201, PWB-IC and PWB-C connector for proper connection and correct as necessary. 5 PC201 I/O check, Sensor check PWB-C PJ11C-8 (ON) T-13 6 M201 operation check PWB-IC PJ3IC-1 (REM) PWB-IC PJ3IC-3 (LOCK) Y-7. 7 Change PWB-IC. 8 Change PWB-C.
Code: C6103
Description: Slider Over Run
• The Scanner Home Sensor detects the Scanner at its home position during a period of time that begins with the time when a prescan command and a scan preparation command are executed and ends when a home return command is executed.
Remedy: 1 Correct or change the Scanner drive (cable, pulley, gear, belt) if it is faulty. 2 Correct the Scanner Motor set screw if loose. 3 Adjust [Image Position Leading Edge] and [Feed Direction Adjustment]. 4 Check the PC201, M201, PWB-IC and PWB-C connector for proper connection and correct as necessary. 5 PC201 I/O check, Sensor check PWB-C PJ11C-8 (ON) T-13 6 M201 operation check PWB-IC PJ3IC-1 (REM) PWB-IC PJ3IC-3 (LOCK) Y-7. 7 Change PWB-IC. 8 Change PWB-C.
Code: C6301
Description: Scanner Cooling Fan Motor’s failure to turn
• The Fan Lock signal remains HIGH for a predetermined continuous period of time while the Motor remains stationary.
Remedy: 1 Check the connector of motor for proper connection and correct as necessary. 2 Check the fan for possible overload and correct as necessary. 3 M202 operation check PWB-C PJ81C-2 (REM) PWB-C PJ81C-3 (LOCK) T-10 to 11. 4 Change PWB-C. 5 Change PWB-M.
Code: C6704
Description: Image Input Time Out
• Image data is not input from the Image Processing Board (PWB-C) to the MFP Control Board (PWB-MFP).
Remedy: 1 Select [Service Mode] - [State Confirmation] - [Memory/HDD Adj.] - [Memory Bus Check] - [Scanner??Memory]. 2 Check the connectors between PWB-C and PWB-MFP for proper connection and correct as necessary. 3 Change PWB-MFP. 4 Change PWB-Cge PWB-M.
Code: C6751
Description: CCD clamp/gain adjustment failure
• The adjustment value is 0 or 255 during a CCD clamp adjustment. • The peak value of the output data is 64 or less during a CCD gain adjustment.
Remedy: 1 Correct the harness connection between PWB-A and PWB-C if faulty. 2 Check for possible extraneous light and correct as necessary. 3 Clean the lens, mirrors, CCD surface, and shading sheet if dirty. 4 Correct reflective mirror of the Scanner if faulty, or change Scanner. 5 Change PWB-A. 6 Change PWB-C.
Code: C9401
Description: Exposure Lamp’s failure to turn ON
• The output from the CCD Sensor is a predetermined value or less during CCD Sensor gain adjustment.
Remedy: 1 Check the flat cable for proper connection and correct or change as necessary. 2 Change Scanner Assy. 3 Change PWB-C.