Service manual

Contents
13.1.7Troubleshooting Flow Chart....................................................................................................................13- 2
13.1.8Making Checks in Response to an Image Fault.......................................................................................13- 3
13.1.9Checking the Photointerrupters ...............................................................................................................13- 3
13.2 Troubleshooting.............................................................................................................................................13- 6
13.2.1 Image Faults ............................................................................................................................................13- 6
13.2.2 Faulty Feeding.......................................................................................................................................13- 29
13.2.3 Malfunction ...........................................................................................................................................13- 33
13.2.4 Printing/Scanning..................................................................................................................................13- 43
13.2.5 Transmission/Fax-Related.....................................................................................................................13- 45
13.2.6 Jam (Main Unit) ....................................................................................................................................13- 46
13.2.7 Jam (Document Feeder) ........................................................................................................................13- 57
13.3 Outline of Electrical Components ...............................................................................................................13- 59
13.3.1 Clutch/Solenoid.....................................................................................................................................13- 59
13.3.2 Sensor....................................................................................................................................................13- 60
13.3.3 Lamps, Heaters, and Others ..................................................................................................................13- 62
13.3.4 PCBs......................................................................................................................................................13- 63
13.3.5 Variable Resistors(VR), Light-Emitting Diodes(LED),and Check Pins by PCB .................................13- 65
Chapter 14 Self Diagnosis
14.1 Error Code Table ...........................................................................................................................................14- 1
14.1.1Error Code Table .....................................................................................................................................14- 1
14.2 FAX Error Codes...........................................................................................................................................14- 4
14.2.1 Outline.....................................................................................................................................................14- 4
14.2.2 User Error Code ......................................................................................................................................14- 7
14.2.3 Service Error Code................................................................................................................................14- 13
Chapter 15 Service Mode
15.1 Outline ...........................................................................................................................................................15- 1
15.1.1Outline .....................................................................................................................................................15- 1
15.1.2Using Service Mode ................................................................................................................................15- 2
15.1.3List of Menus...........................................................................................................................................15- 3
15.2 Service Mode Table.....................................................................................................................................15- 10
15.2.1Bit Switch Settings ................................................................................................................................15- 10
15.2.2Menu Switch Settings............................................................................................................................15- 22
15.2.3Numeric Parameter Setting....................................................................................................................15- 23
15.2.4SPECIAL Setting...................................................................................................................................15- 26
15.2.5NCU Setting...........................................................................................................................................15- 26
15.2.6ISDN Setting..........................................................................................................................................15- 26
15.2.7Country/Region of Installation ..............................................................................................................15- 26
15.2.8Setting the Original Reading Functions.................................................................................................15- 27
15.2.9Setting the Printer Parameters ...............................................................................................................15- 28
15.2.10PDL......................................................................................................................................................15- 29
15.2.11Counter ................................................................................................................................................15- 29
15.2.12Generating a Report.............................................................................................................................15- 30
15.2.13Downloading........................................................................................................................................15- 31
15.2.14Clearing................................................................................................................................................15- 31
15.2.15ROM Indication...................................................................................................................................15- 32