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Chapter 3 Contents 3-1 Maintenance/Adjustments ......................3-3 3-1-1 Life expectancy of modules ....................... 3-3 3-1-2 Toner container .......................... 3-4 (1) When to replace the toner container ................... 3-4 (2) Notes on changing toner container ..................3-4 (3) Toner container replacement ....................3-5 (4) Toner saver mode (EcoPrint) ....................
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Chapter 4 Contents 4-1 Electrophotographic system ......................4-3 4-1-1 Electrophotographic cycle ......................4-3 Process unit mechanism ......................4-4 (1) Main charging ........................4-5 Photo conductive drum ......................4-5 Charging the drum ........................4-6 (2) Exposure ..........................4-7 Laser scanner unit ........................4-8 Drum surface potential ......................
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Chapter 5 Contents 5-1 General instructions ........................5-3 5-1-1 Screw/hardware ......................... 5-3 5-1-2 Before starting disassembly ...................... 5-3 5-2 Disassembly ............................. 5-4 5-2-1 Removing the process unit ......................5-4 5-2-2 Removing the principal outer covers ..................5-5 (1) Removing the top cover/face-down output tray ..............5-5 (2) Removing the right cover ....................
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Chapter 6 Contents 6-1 Troubleshooting ..........................6-3 6-1-1 General error handling ....................... 6-3 (1) Maintenance messages ...................... 6-3 (2) Error messages ........................6-5 6-1-2 Diagnostic (Service error messages) ..................6-7 (1) Call service 7980 - Waste toner full [Total page count less than 100,000 pages of printing] ..6-7 (2) Call service 7990 - Waste toner full [Total page count more than 100,000 pages of printing] ..
Put paper of the correct size in the MP tray then press the GO key to resume printing. The ATTENTION indicator flashes. Indicates that a failure Option Interface has occurred with the optional network interface board. Error Check the optional interface installed in the printer. FS-1050...