Rice Lake Okidata 320-390-420 Turbo - Service Guide User Manual
Page 2
Table of Contents
Page
Service Guide ML320/321Turbo
0 About This Manual
Front Cover
1
1 Configuration
1.1. Standard Printer Configuration
2
1.2 Options
3
2 Operation Description
....2.1.1 Summary
4
....2.1.2 Microprocessor and the Peripheral Circuit
5
....2.1.3 Initialization
6
....2.1.4 Parallel Interface Control
7
....2.1.5 Print Control
8
....2.1.6 SP/LF Motor Control
9
....2.1.7 Operation Panel
10
....2.1.8 Alarm Circuit
11
....2.1.9 Power Supply Circuit
12
2.2 Mechanical Operation
13
....2.2.2 Spacing Operation (See Figure 2-4.)
14
....2.2.3 Head Gap Adjusting (See Figure 2-5.)
15
....2.2.4 Ribbon Drive (See Figure 2-6.)
16
....2.2.5 Paper Feed Operation
17
....2.2.6 Paper Detection Mechanism (See Figure 2-15.)
18
....2.2.7 Automatic Sheet Feed
19
....2.2.8 Paper Park Function (Continuous sheet paper)
20
3 Parts Replacement
3. ASSEMBLY/DISASSEMBLY
21
3.1 Precautions for Parts Replacement
22
3.2 Service Tools
23
3.3 Disassembly/Reassembly Procedure
24
....3.3.1 Printhead
25
....3.3.2 Ribbon Protector
26
....3.3.3 Pull-up Roller Assy
27
....3.3.4 Upper Cover, Access and Sheet Guide Assy
28
....3.3.5 Gear Case Assy
29
....3.3.6 PC Connector
30
....3.3.7 Space Motor, Guide Roller Assy
31
....3.3.8 Space Rack
32
....3.3.9 Carriage Cable
33
....3.3.10 Backup Roller Holder Assy
34
....3.3.11 Platen Assy
35
....3.3.12 Driver Board (SDDV)
36
....3.3.13 LF Motor
37
....3.3.14 Operation Panel PCB (LEOP)
38