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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 II THEORY 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
1.3.10
Parallel I/O................................................................................................................. II-11
1.3.11
Engine I/O.................................................................................................................. II-12
1.3.12
Paper 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
