Table of Contents
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4.2.3 BIT SWITCH PROGRAMMING (FUNCTION 81)............................. 4-2
4.2.4 SYSTEM REPORT (FUNCTION 82)................................................ 4-3
4.2.5 RAM REWRITE (FUNCTION 83)..................................................... 4-4
4.2.6 NCU PARAMETERS (FUNCTION 86) . ............................................. 4-4
4.2.7 PRINT TEST (FUNCTION 87).......................................................... 4-5
4.2.8 PRINT HEAD POSITION ADJUSTMENT (FUNCTION 88) . ............. 4-5
4.2.9 ERROR CODE DISPLAY (FUNCTION 89) . ...................................... 4-5
4.2.10 RAM DATA DUMP LIST (FUNCTION 90)...................................... 4-5
4.2.11 PCL3 FONT LIST (FUNCTION 91) ................................................. 4-6
4.2.12 SYSTEM INITIALIZATION.............................................................. 4-6
4.3 BIT SWITCHES......................................................................................... 4-8
4.4 NCU PARAMETERS ................................................................................ 4-21
4.5 RAM DEFINITIONS................................................................................. 4-23
5. PREVENTIVE MAINTENANCE ......................................................5-1
5.1 PREVENTIVE MAINTENANCE SCHEDULE ............................................. 5-1
5.1.1 PM TABLE........................................................................................ 5-1
6.REPLACEMENT AND ADJUSTMENT ............................................6-1
6.1 EXTERIOR ................................................................................................ 6-2
6.1.1 TOP COVER ASSEMBLY ................................................................. 6-2
6.1.2 REAR COVER.................................................................................. 6-5
6.2 PCBS......................................................................................................... 6-6
6.2.1 FCU AND NCU................................................................................. 6-6
6.2.2 PSU AND PCIF................................................................................. 6-8
6.3 SCANNER AND PAPER CASSETTE ........................................................ 6-9
6.3.1 MAINTENANCE................................................................................ 6-9
6.3.2 SCANNER AND PAPER CASSETTE ASSEMBLY ......................... 6-10
6.4 PRINTER ENGINE.................................................................................. 6-13
6.4.1 MAINTENANCE.............................................................................. 6-13
6.4.2 REPLACEMENT............................................................................. 6-17
7. TROUBLESHOOTING ....................................................................7-1
7.1 TROUBLESHOOTNG PROCEDURE ........................................................ 7-1
7.1.1 COPY TEST...................................................................................... 7-1
7.2 INK NOZZLE TEST ................................................................................... 7-2
7.3 TRANSMISSION TEST............................................................................. 7-3
7.4 POWER ON INITIALIZATION TEST......................................................... 7-4
7.5 LCD DISPLAY ERROR .............................................................................. 7-5
7.6 RECEPTION TEST.................................................................................... 7-6
7.7 PRINT MODULE ERROR.......................................................................... 7-7
7.8 ERROR CODES........................................................................................ 7-8
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