Contents12.5.3 Adjusting the Ellectrical System ............................................................................................................. 12- 7Chapter 13 Correcting Faulty Images13.1 Making lnitial Checks.................................................................................................................................... 13- 113.1.1Outline ..................................................................................................................................................... 13- 113.1.2Making Initial Checks.............................................................................................................................. 13- 113.1.3Site Environment ..................................................................................................................................... 13- 113.1.4Checking the Drum Unit.......................................................................................................................... 13- 113.1.5Checking the Paper .................................................................................................................................. 13- 113.1.6Others....................................................................................................................................................... 13- 113.1.7Troubleshooting Flow Chart.................................................................................................................... 13- 213.1.8Making Checks in Response to an Image Fault....................................................................................... 13- 313.1.9Checking the Photointerrupters ............................................................................................................... 13- 313.2 Outline of Electrical Components ................................................................................................................. 13- 613.2.1 Clutch/Solenoid ....................................................................................................................................... 13- 613.2.2 Sensor ...................................................................................................................................................... 13- 713.2.3 Lamps, Heaters, and Others .................................................................................................................... 13- 913.2.4 PCBs...................................................................................................................................................... 13- 1013.2.5 Variable Resistors(VR), Light-Emitting Diodes(LED),and Check Pins by PCB ................................. 13- 12Chapter 14 Self Diagnosis14.1 Error Code Table ........................................................................................................................................... 14- 114.1.1Troubleshooting Malfunctions (service error)......................................................................................... 14- 114.2 FAX Error Codes........................................................................................................................................... 14- 614.2.1 Outline ..................................................................................................................................................... 14- 614.2.2 User Error Code ...................................................................................................................................... 14- 914.2.3 Service Error Code ................................................................................................................................ 14- 16Chapter 15 Service Mode15.1 Outline ........................................................................................................................................................... 15- 115.1.1Outline ..................................................................................................................................................... 15- 115.1.2Using Service Mode ................................................................................................................................ 15- 315.1.3List of Menus ........................................................................................................................................... 15- 415.2 Service Mode Table ..................................................................................................................................... 15- 1215.2.1Bit Switch Settings ................................................................................................................................ 15- 1215.2.2Menu Switch Settings ............................................................................................................................ 15- 2415.2.3Numeric Parameter Setting.................................................................................................................... 15- 2615.2.4SPECIAL Setting................................................................................................................................... 15- 3015.2.5NCU Setting........................................................................................................................................... 15- 3015.2.6ISDN Setting.......................................................................................................................................... 15- 3115.2.7Country/Region of Installation .............................................................................................................. 15- 3115.2.8Setting the Original Reading Functions................................................................................................. 15- 3115.2.9Setting the Printer Parameters ............................................................................................................... 15- 3215.2.10PDL...................................................................................................................................................... 15- 3515.2.11Counter ................................................................................................................................................ 15- 3515.2.12Generating a Report ............................................................................................................................. 15- 37