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Chapter 6 Contents
6-1 Troubleshooting ............................................................................................................................... 6-3
6-1-1 Error messages ......................................................................................................................... 6-3
(1) Messages ............................................................................................................................ 6-4
Normal messages ..................................................................................................................... 6-5
Maintenance messages ............................................................................................................ 6-6
Error messages ........................................................................................................................ 6-8
6-1-2 Service error indications .......................................................................................................... 6-10
(1) 2000 - Main motor error..................................................................................................... 6-10
(2) 4000 - Laser scanner unit [Polygon motor] error ............................................................... 6-11
(3) 4200 - Laser scanner unit [Pin photo diode] error ............................................................. 6-13
(4) 5300 - Eraser lamp error ................................................................................................... 6-15
(5) 6000 - Fuser unit error....................................................................................................... 6-16
(6) 7980 - Waste toner full [Total page count less than 100,000 pages of printing] ................ 6-17
(7) 7990 - Waste toner full [Total page count more than 100,000 pages of printing] .............. 6-18
(8) F010 - Controller checksum error...................................................................................... 6-18
(9) F020 - Controller RAM read/write error ............................................................................. 6-18
(10) F030 - Controller system error ........................................................................................ 6-19
(11) F040 - Communication error ........................................................................................... 6-19
(12) F050 - Engine ROM checksum error ............................................................................... 6-19
6-1-3 Print quality problems .............................................................................................................. 6-20
(1) Completely blank printout .................................................................................................. 6-21
(2) All-black printout ................................................................................................................ 6-22
(3) Dropouts ............................................................................................................................ 6-23
(4) Black dots .......................................................................................................................... 6-24
(5) Black horizontal streaks..................................................................................................... 6-24
(6) Black vertical streaks......................................................................................................... 6-25
(7) Unsharpness ..................................................................................................................... 6-26
(8) Gray background ............................................................................................................... 6-27
(9) Dirt on the top edge or back of the paper.......................................................................... 6-28
Repetitive defects gauge ........................................................................................................ 6-29
6-1-4 Correcting a paper jam ............................................................................................................ 6-30
(1) Jam at the face-down and face-up trays ............................................................................ 6-30