iv
Confidential
1.3.3 Monochrome print quality test pattern (Function code 09) ..................................... 5-7
1.3.4 Check LCD operation (Function code 12) .............................................................. 5-8
1.3.5 Check control panel key operation (Function code 13) .......................................... 5-9
1.3.6 Display software version (Function code 25) ....................................................... 5-10
1.3.7 Check sensor operation (Function code 32) ........................................................ 5-11
1.3.8 Display LAN connection status (Function code 33) .............................................. 5-12
1.3.9 Change USB No. return value / Adjust left-end print position / Adjust upper-end print
position / Change ON/OFF setting for lower case compensation / Change ON/OFF set-
ting for fixation strength improvement (Function code 45) 5-13
1.3.10 Continuous print test (Function code 67) ............................................................. 5-17
1.3.11 Print frame pattern (single-side printing) (Function code 69) ............................... 5-21
1.3.12 Print frame pattern (duplex printing) (Function code 70) ...................................... 5-22
1.3.13 Print test pattern (Function code 71) .................................................................... 5-23
1.3.14 Setting by spec (Function code 74) ...................................................................... 5-26
1.3.15 Print maintenance information (Function code 77) ............................................... 5-27
1.3.16 Check fan operation (Function code 78) .............................................................. 5-29
1.3.17 Display machine log information (Function code 80) ........................................... 5-30
1.3.18 Display machine error code (Function code 82) ................................................... 5-32
1.3.19 Reset irregular power supply detection counter of low-voltage power supply PCB
(Function code 88) 5-32
1.3.20 Quit maintenance mode (Function code 99) ........................................................ 5-32
2. OTHER SERVICE FUNCTIONS ................................................................................................ 5-33
2.1 Print Printer Settings ......................................................................................................... 5-33
2.2 Resetting Drum Counter ................................................................................................... 5-34
CHAPTER 6 PERIODICAL MAINTENANCE
1. PERIODICAL REPLACEMENT PARTS ..................................................................................... 6-1
APPENDIX 1 DELETING USER SETTING INFORMATION
APPENDIX 2 INSTALLING THE MAINTENANCE PRINTER DRIVER
APPENDIX 3 HOW TO UPDATE THE FIRMWARE