CONTENTS
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E M E
R/\
L •*•••
1
1
Bssic SpGcif
icstions
,
1
2.
Main Component Units
1
2.1 Print unit
1
2 12
ntrolunit
•••*•*••*•*
1
2.3 Cover
unit
1
3.
Block Diagrams
2
3.1 Block
diagram of
all
component units
2
3.2 Block diagram of control
boards
2
4. Operation of Print Unit Mechanisms
3
4.1 Carriage feed mechanism
3
4.2 Character selection mechansism
6
4.3 Hammer mechanism 6
4.4
Ribbon
feed mechanism 7
4.5 Form feed mechanism 7
5.
Removal and Replacement
8
5.1 Maintenance tools
8
5.2 Disassembly and assembly
9
6.
Adjustment
31
6.1
Carriage unit and linear
motor
unit adjustment 31
6.2
Ribbon mechanism adjustment 42
6.3 Platen drive mechanism adjustment 46
6.4 Paper bail adjustment
47
7.
Theory of Operation
48
7.1 Power supply
48
7.2
MCU and
SCU
operations
54
7.3
Daisy
motor and linear motor home position sensor circuit
61
7.4 Control panel
62
8.
Lubrication
65
8.1 Lubricating the carriage unit
66
8.2 Lubricating
the
frame unit
67
8.3
Lubricating the parts
68
9.
Configuration
70
10.
Troubleshooting
71
10.1
General desciption
71
10.2
Troubleshooting
71
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