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CONTENTS
CHAPTER I FEATURES AND SPECIFICATIONS..........................................I-1
1.FEATURES.........................................................................................................................I-1
2.SPECIFICATIONS..............................................................................................................I-3
2.1 Printing.......................................................................................................................................I-3
2.2 Functions...................................................................................................................................I-3
2.3 Electrical and Mechanical..........................................................................................................I-4
2.4 Paper Specification....................................................................................................................I-5
2.5 Print Delivery.............................................................................................................................I-6
2.6 Paper.........................................................................................................................................I-6
2.7 Effective Printing Area...............................................................................................................I-7
3.SAFETY INFORMATION....................................................................................................I-9
3.1 Laser Safety (110 - 120V Model only).......................................................................................I-9
3.2 FDA Regulations (110 - 120V Model only)................................................................................I-9
3.3 Caution for Laser Product..........................................................................................................I-10
CHAPTER IITHEORY OF OPERATION........................................................ II-1
1.ELECTRONICS..................................................................................................................II-1
1.1 General Block Diagram.............................................................................................................II-1
1.2 Main PCB Block Diagram.........................................................................................................II-2
1.3 Main PCB..................................................................................................................................II-3
1.3.1 CPU Core....................................................................................................................II-3
1.3.2 ASIC............................................................................................................................II-4
1.3.3 ROM............................................................................................................................II-7
1.3.4 Optional ROM..............................................................................................................II-7
1.3.5 DRAM..........................................................................................................................II-8
1.3.6 Optional RAM..............................................................................................................II-9
1.3.7 Optional Serial I/O.....................................................................................................II-10
1.3.8 EEPROM...................................................................................................................II-10
1.3.9 Reset Circuit..............................................................................................................II-11
1.3.10Parallel I/O.................................................................................................................II-11
1.3.11Engine I/O..................................................................................................................II-12
1.3.12Paper Feed Motor Drive Circuit.................................................................................II-13
1.4 Driver PCB..............................................................................................................................II-13
1.5 SW Panel PCB........................................................................................................................II-13
1.6 Power Supply..........................................................................................................................II-14
1.6.1 Low-voltage Power Supply........................................................................................II-14
1.6.2 High-voltage Power Supply, SR PCB........................................................................II-15
2.MECHANICS....................................................................................................................II-16
2.1 Overview of Printing Mechanism............................................................................................II-16
2.2 Paper Transfer........................................................................................................................II-17
2.2.1 Paper Supply.............................................................................................................II-17
2.2.2 Paper Registration.....................................................................................................II-17
2.2.3 Paper Eject................................................................................................................II-18