Okidata - ML320 Turbo, ML321 Turbo Service Manual.pdf

(1948 KB) Pobierz
67975664 UNPDF
Page: 1
Service Guide ML320/321Turbo
Chapter 0 About This Manual
ML320 Turbo // ML321 Turbo
Dot Matrix Printers
Adobe Acrobat printable reference
copy of the OKIDATA Service Training Manual.
09/17/97
Note: This Adobe Acrobat version of the Okidata Service Training Manual was built with the
pictures rendered at 300 dpi, which is ideal for printing, but does not view on most
displays well.
Okidata is a registered trademark, and OkiPage is a trademark of Oki Electric Industry Co., Ltd. HP,
LaserJet and PCL5e are trademarks of Hewlett-Packard Co. Adobe and Acrobat are trademarks of Adobe
Systems Incorporated.
Copyright 1997, Okidata, Division of OKI America, Inc. All rights reserved. See the OKIDATA Business
Partner Exchange (BPX) for any updates to this material. (http://bpx.okidata.com)
67975664.011.png 67975664.012.png 67975664.013.png 67975664.014.png 67975664.001.png
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
67975664.002.png
Table of Contents
Page
....3.3.15 Control/Power Supply Board (SDCT)
39
....3.3.16 Transformer Assy
40
....3.3.17 Change Lever and Gears
41
....3.3.18 Carriage Shaft
42
....3.3.19 Paper Pan
43
....3.3.20 Rear Tractor Assy
44
....3.3.21 Rear Pressure Assy
45
....3.3.22 Switch Lever
46
4 Adjustments
4. ADJUSTMENT
47
5 Periodical Maintenance
5.1 Cleaning
48
5.2 Lubrication
49
6 Troubleshooting
6.1 Items to Check Before Repair
50
6.2 Troubleshooting Table
51
6.3 Lamp Display
52
6.4 Connection Circuit Check for Printhead and SP/LF Motor
53
6.5 Troubleshooting Flow Chart
54
A Centronics Parallel Interface
A. PCB LAYOUT
55
B Parts Listing
Parts Listing
56
Figure 11-1 Upper Cover Assy
57
Figure 11-2 Printer General Assy
58
Figure 11-3 Printer Unit
59
Figure 11-4 Carriage Assy
60
Figure 11-5 Option Spare Parts
61
C Software Diagnostics and Adjustments
RS-232C SERIAL INTERFACE BOARD
62
2. OPERATION DESCRIPTION
63
....2.2.1 Operation at power on
64
....2.2.2. RS-232C interface
65
2.3 Communication Procedure Flowchart
66
3. TROUBLESHOOTING FLOWCHART
67
3.3 Local Test
68
67975664.003.png
Page: 2
Service Guide ML320/321Turbo
Chapter 1 Configuration
1.1. Standard Printer Configuration
This printer consists of the following assemblies:
67975664.004.png 67975664.005.png 67975664.006.png 67975664.007.png 67975664.008.png 67975664.009.png
Copyright 1997, Okidata, Division of OKI America, Inc. All rights reserved. See the OKIDATA Business
Partner Exchange (BPX) for any updates to this material. (http://bpx.okidata.com)
67975664.010.png

Plik z chomika:

Inne pliki z tego folderu:

Inne foldery tego chomika:

Zgłoś jeśli naruszono regulamin