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ML321 Turbo
OKIDATA ML321 Turbo Manuals
Manuals and User Guides for OKIDATA ML321 Turbo. We have
5
OKIDATA ML321 Turbo manuals available for free PDF download: Service Manual, User Manual, Instructions
Okidata ML321 Turbo Service Manual (294 pages)
Dot Matrix Printers
Brand:
Okidata
| Category:
Printer
| Size: 2.45 MB
Table of Contents
Table of Contents
2
About this Manual
8
Manual Part Number and Revision
8
1 Product Specifications
9
General Description
9
Serial Number Identification & (A-D) Revision Levels
10
Compatibility Chart
14
Product Specifications
17
Paper Specifications
20
Physical Specifications
22
Power Requirements
23
Environmental Requirements
24
Agency Approvals
25
Options
26
Consumables
27
Memory Specifications
28
Reliability Specifications
29
2 Principles of Operation
30
Printer Overview
30
Circuit Board Description
32
Operator Panel Board
32
Power Supply
32
Control Board
32
Control Board
35
Large Scale Integrated Circuitry (LSI)
36
Electrical Operation
39
Initialization
40
Interface Control
41
Print Head Drive Circuit
42
Spacing Operation
43
Line Feed
44
Alarm Circuit
45
Printhead
48
Space Mechanism / Operation
50
Head Gap Adjusting Mechanism
52
Ribbon Drive Mechanism / Operation
55
Paper Feed Mechanism
57
Paper-End Detection Mechanism
60
Semi-Automatic Sheet Feeder (SASF) Operation
62
3 Maintenance & Disassembly
63
Disassembly/Assembly Procedures
63
Operator Panel Assembly
66
Transformer (Rev a & B)
67
Transformer Rev C
96
Transformer Rev D
98
Filter Assembly
100
Power Supply Board (Rev a & B)
102
Power Supply Boards Rev C
104
Power Interconnect Module / Cable Guide (Rev a & B)
106
Power Interconnect Module / Cable Guide Rev C
108
Power Interconnect Module / Cable Guide (Rev D)
110
Indicator Assembly (Bail Bar Assembly)
112
Head Cable Access Cover
115
Ribbon Drive Assembly
117
Space Motor Assembly
119
Carriage Frame Assembly
121
Space Rack
124
Guide Rail
127
Platen Assembly
130
Line Feed Motor and Gear
132
Line Feed Motor Gear
132
Line Feed Motor Interconnect Module
138
Reset Spring, Change Gear, and Idler Gear
140
Release Lever
142
Paper Pressure Guide
143
Pressure Roller Assembly
146
Tractor Assembly
148
Sensor Lever
151
Paper End (B) Lever
153
Main Chassis Assembly
156
Adjustments
157
Printhead Gap Adjustment
157
Cleaning
161
Lubrication
163
4 Failure & Repair Analysis
166
Troubleshooting Tips
171
Common Problems
172
Fault Alarms
174
Repair Analysis Procedures - Using the Raps
178
RAP Index
178
Troubleshooting Cautions
179
RAP 01A:operator Panel Lamps Do Not Light - Rev A, B
181
RAP 01B:operator Panel Lamps Do Not Light - Rev D
183
RAP 02A:abnormal Spacing - Rev A, B, and C
185
RAP 02B:abnormal Spacing - Rev D
188
RAP 03:Wrong or Missing Characters / Dots on Output
191
RAP 04:Line Feed Problems
193
RAP 05:Malfunction of Operator Panel Switch(Es)
195
RAP 06:Parallel Interface Does Not Receive Data
196
RAP 07:Serial Interface Does Not Receive Data
197
Hexadecimal Dump - Procedure
199
Resistance / Service Checks - Index to Charts
200
Interconnect Diagrams (Rev a & B)
201
Interconnect Diagrams (Rev C)
203
Printhead
204
Space Motor
205
Line Feed Motor
206
Operator Panel Board (Rev A, B, & C)
207
Operator Panel Board (Rev D)
208
Control Board (Rev a - D)
209
Printer Tests
210
Rolling ASCII Print Test
210
Font Sample Test
210
Serial Interface Loopback Test
210
Menu Operation
217
Top of Form
219
Paper Park
221
Forms Tear off
223
Board Diagrams
225
Index to Charts (A, B, C, D)
227
Control Board (LXMC) - Rev a and B
230
Control Board (LXMC-3) - Rev C
232
Control Board (LXMR) - Rev D
235
Power Supply (PAII-2) - Rev a and B
237
Power Supply (SUII-2) - Rev C
239
A.2.06 Filter Assembly - Rev A, B, C, and D
241
A.2.07 Operator Panel (LXSP) - Rev A, B, and C
243
A.2.08 Operator Panel (LXON) - Rev D
245
A.2.09 RS232-C Serial Interface (LXHI) - Rev A, B, C, and D
246
B.1.02 Definitions of Terms
248
B.2 Index to Illustrated Parts Breakdown Charts
249
B.2.01 Covers - Rev A, B, and C
251
B.2.02 Covers - Rev D
253
B.2.03 Electrical Components - Rev a and B
255
B.2.04 Electrical Components - Rev C
258
B.2.05 Electrical Components - Rev D
261
B.2.14 Tractor Assembly - Rev A, B, C, and D
286
B.2.15 Options - Rev A, B, C, and D
288
B.2.16 Consumables - Rev A, B, C, and D
290
B.2.17 Packaging - Rev A, B, C, and D
291
B.2.18 Documentation - Rev A, B, C, and D
293
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OKIDATA ML321 Turbo Service Manual (151 pages)
Dot Matrix Printers
Brand:
OKIDATA
| Category:
Printer
| Size: 1.99 MB
Table of Contents
Table of Contents
3
1 Configuration
5
Standard Printer Configuration
5
Options
7
2 Operation Description
10
Operation Description 2.1.1 Summary
10
Microprocessor and the Peripheral Circuit
12
Initialization
17
Parallel Interface Control
19
Print Control
20
SP/LF Motor Control
22
Operation Panel
24
Alarm Circuit
26
Power Supply Circuit
28
Mechanical Operation
29
Spacing Operation (See Figure 2-4.)
32
Head Gap Adjusting (See Figure 2-5.)
34
Ribbon Drive (See Figure 2-6.)
36
Paper Feed Operation
38
Paper Detection Mechanism (See Figure 2-15.)
45
Automatic Sheet Feed
48
Paper Park Function (Continuous Sheet Paper)
50
3 Parts Replacement
51
Assembly/Disassembly
51
Precautions for Parts Replacement
52
Service Tools
54
Disassembly/Reassembly Procedure
55
Printhead
57
Ribbon Protector
59
Pull-Up Roller Assy
60
Gear Case Assy
63
PC Connector
65
Space Motor, Guide Roller Assy
67
Space Rack
69
Carriage Cable
71
Backup Roller Holder Assy
73
Platen Assy
74
Driver Board (SDDV)
75
LF Motor
77
Operation Panel PCB (LEOP)
79
Control/Power Supply Board (SDCT)
81
Transformer Assy
83
Change Lever and Gears
84
Carriage Shaft
85
Paper Pan
86
Rear Tractor Assy
87
Rear Pressure Assy
89
Switch Lever
91
4 Adjustments
92
Adjustment
92
Adjustments 4. ADJUSTMENT
92
5 Periodical Maintenance
99
Cleaning
99
Lubrication
101
6 Troubleshooting
108
Items to Check before Repair
108
Troubleshooting 6.1 Items to Check before Repair
108
Troubleshooting Table
109
Lamp Display
110
Connection Circuit Check for Printhead and SP/LF Motor
114
Troubleshooting Flow Chart
116
A Centronics Parallel Interface
126
Pcb Layout
126
B Parts Listing
127
Parts Listing
127
Figure 11-1 Upper Cover Assy
127
C Software Diagnostics and Adjustments
138
Rs-232C Serial Interface Board
138
Operation Description
139
Operation at Power on
141
RS-232C Interface
142
Communication Procedure Flowchart
143
Troubleshooting Flowchart
146
Local Test
150
OKIDATA ML321 Turbo User Manual (60 pages)
Brand:
OKIDATA
| Category:
Printer
| Size: 1.4 MB
Table of Contents
Table of Contents
5
Section 1: Getting Started
7
Features
7
Optional Accessories
7
Unpacking
7
Getting to Know Your Printer
8
Removing the Shipping Restraints
9
Installing/Replacing the Ribbon Cartridge
10
Connecting to the Computer
11
Connecting to the Power
11
Loading Paper
12
Loading Continuous Forms (Rear Feed)
12
Loading Single Sheets (Top Feed)
14
Setting the Top of Form (TOF)
15
Temporarily Changing the Print Start Position
15
Resetting Top of Form to the Standard Setting
15
Switching Paper Paths
15
Setting the Printhead Gap
16
Running the Self Tests
17
Font Sample Test
17
ASCII Test
17
Selecting an Emulation
17
Selecting a Printer Driver
18
Printer Drivers
18
OKIDATA Drivers
18
Section 2: Maintaining Your Printer
19
Replacing the Ribbon Cartridge
19
Clearing Paper Jams
19
Rear-Feed Jams
19
Correcting Repetitive Rear-Feed Jams
21
Single-Sheet Jams
23
Cleaning the Housing
24
Section 3: Using Your Printer
25
Print Mode: Indicator Lights
25
Print Mode: Control Panel Keys
26
Selecting the Print Quality
27
Selecting the Character Pitch
28
Menu Mode: Control Panel
28
Entering and Exiting the Menu Mode
29
Resetting the Menu
29
Printing the Menu Settings
29
Changing the Menu Settings
29
Summary of Menu Settings
30
Explanations of Menu Items
33
Using the Printer's Features
35
Tear Feature
35
Forms Tear-Off Feature
36
Paper Park Feature
36
Section 4: Troubleshooting
39
Section 5: Specifications
41
Section 6: Service
43
Getting Service and Support
43
Your Dealer
43
The Okidata Customer Support Center
43
Okidata Automated Information Service
43
Okidata Customer Support Representatives
43
Okidata Faxable Facts
44
Okidata Service Locations
44
Purchasing Replacement Parts & Accessories
45
Ways to Purchase
45
Replacement Parts
45
Manuals
45
Accessories
46
Section 7: Commands
47
Epson FX Commands
47
IBM Proprinter III Commands
49
MICROLINE Standard Commands
51
FCC/IC/CE Statements
54
Warranty
55
E-52 Index
58
Material Safety Data Sheet
59
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OKIDATA ML321 Turbo Service Manual (3 pages)
Dot Matrix Printers
Brand:
OKIDATA
| Category:
Printer
| Size: 2.01 MB
OKIDATA ML321 Turbo Instructions (1 page)
RS-232C Serial Interface Board
Brand:
OKIDATA
| Category:
Printer Accessories
| Size: 0.07 MB
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