40496501TH Draft Version
3 /
CONTENTS
1. CONFIGURATION ..................................................................................... 5
1.1
Basic System Configuration............................................................... 5
1.2
Printer Specifications ......................................................................... 6
1.3
Option Specifications ......................................................................... 7
1.4
Basic Specifications ........................................................................... 8
2. THEORY OF OPERATION ........................................................................ 11
2.1
Electrical Operation ........................................................................... 11
2.1.1
Summary ................................................................................................. 11
2.1.2
Microprocessor and the peripheral circuit ............................................... 11
2.1.3
Initialization .............................................................................................. 20
2.1.4
Interface control ....................................................................................... 21
2.1.5
Parallel Interface Control ......................................................................... 21
2.1.6
Serial Interface ........................................................................................ 22
2.1.7
Printing operation .................................................................................... 23
2.1.8
Printhead control ..................................................................................... 24
2.1.9
Print Compensation Control .................................................................... 26
2.1.10
Space motor control ................................................................................ 26
2.1.11
Line feed .................................................................................................. 27
2.1.12
Bail, tractor switching, AG, ribbon motor control ..................................... 28
2.1.13
Operation Panel ...................................................................................... 29
2.1.14
Alarm circuits ........................................................................................... 31
2.1.15
Power supply circuit ................................................................................ 33
2.2
Mechanical Operation ........................................................................ 34
2.2.1
Printhead mechanism and operation ....................................................... 34
2.2.2
Spacing operation ................................................................................... 36
2.2.3
Head gap adjusting ................................................................................. 37
2.2.4
Ribbon drive ............................................................................................ 40
2.2.5
Paper Feed Mechanism .......................................................................... 41
2.2.6
Bail Feed Mechanism .............................................................................. 45
2.2.7
Paper End Detection Mechanism ............................................................ 47
3. PARTS REPLACEMENT ........................................................................... 49
3.1
Precautions for Parts Replacement ................................................... 49
3.2
Parts Layout....................................................................................... 52
3.3
How to Change Parts......................................................................... 53
3.3.1
Cover-Assy-Access / Cover-Assy-Side (R) / Cover-Assy-Side (L)
/Cover-Assy-Front / Frame-Assy-Rear / Plate-Front (stuck) ................ 54
3.3.2
Printer Unit .............................................................................................. 55
3.3.3
Control Block [Control Board (PMA Printed Board),
Driver Board (PDA Printed Board)] ....................................................... 56
3.3.4
Power Supply Assy ................................................................................. 57
3.3.5
PG Cooling Fan ....................................................................................... 58
3.3.6
I/F Board (PHA Printed Board) ................................................................ 59
3.3.7
AG Board (PGA Printed Board) / Connector Cord .................................. 60
3.3.8
AG Motor Assy ........................................................................................ 61
3.3.9
Mini Pitch Belt .......................................................................................... 62
3.3.10
Tractor Change Motor Assy .................................................................... 63
3.3.11
Bail Motor Assy ....................................................................................... 64
3.3.12
LF Motor Assy ......................................................................................... 65
Summary of Contents for PACEMARK 4410
Page 1: ...PACEMARK 4410 PRINTER SERVICE HANDBOOK...
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