User Manuals: Epson LQ-2550 Dot Matrix Printer

Manuals and User Guides for Epson LQ-2550 Dot Matrix Printer. We have 18 Epson LQ-2550 Dot Matrix Printer manuals available for free PDF download: Technical Manual, User Manual, Product Support Bulletin, Paper Manual, Technical Brief

Epson LQ-2550 User Manual

Epson LQ-2550 User Manual (281 pages)

Epson LQ-2550: User Manual

Brand: Epson | Category: Printer | Size: 3 MB

Table of Contents

Table of Contents

4
- Fcc Compliance Statement
  3
- For American Users
  3
- About this Guide
  8
- Where to Get Help
  9
Chapter 1 Setting up the Printer

10
- Setting up the Printer
  10
- Unpacking the Printer
  11
  - Removing the Protective Materials
    11
- Choosing a Place for the Printer
  15
- Assembling the Printer
  16
- Testing the Printer
  24
  - Connecting to a Power Supply
    24
  - Running the Self Test
    25
    
    Left Margin
    30
    
    Right Margin
    30
- Connecting the Printer to Your Computer
  31
  - The Parallel Interface
    31
  - The Serial Interface
    33
- Setting up Your Application Software
  36
  - Choosing from a Menu
    37
Chapter 2 Paper Handling

38
- Paper Handling
  38
- Using Single Sheets
  39
  - Loading a Sheet
    39
- Using Continuous Paper
  42
- Switching between Continuous and Single Sheets
  53
  - Switching to Single Sheets
    53
  - Switching Back to Continuous Paper
    56
- Printing on Special Paper
  59
  - Multi-Part Forms
    59
  - Labels
    60
  - Envelopes
    63
Chapter 3 Using the Printer

65
- Using the Printer
  65
- Operating the Control Panel
  66
  - The Display
    66
  - The Lights
    67
  - The Buttons
    68
- Selectype Settings
  72
  - Other Control Panel Features
    72
  - Using Selectype
    74
  - Selecting a Main Menu Mode
    76
  - Load Macro
    77
  - Change Macro
    79
  - Change Defaults
    82
  - Print out Settings
    87
  - Using the Printer
    88
  - Clear All Macros
    88
- Page Length
  90
- Skip over Perforation
  92
- Setting the Loading Position
  94
  - Adjusting the Loading Position
    94
- Short Tear-Off
  95
- Selecting Typestyles
  97
  - Fonts
    98
  - Pitch
    101
  - Condensed Mode
    102
- Choosing an International Character Set
  103
- Choosing a Character Table
  104
Chapter 4 Using Software and Graphics

106
- Using Software and Graphics
  106
- Using Printer Selection Menus
  107
  - A Quick Test
    107
  - Using Word Processors
    108
  - Using Spreadsheets
    108
  - Using Graphics Software
    109
- Computer-Printer Communication
  110
  - Escape Sequences
    111
    
    Printer Commands
    111
- Enhancing Your Printing
  112
  - Using the Command Summary
    112
    
    Sending Printer Commands
    112
    
    Character Size
    113
    
    Special Effects and Emphasis
    113
    
    Selecting Typestyles with Master Select
    116
- Graphics
  118
  - The Print Head
    118
    
    Color Graphics
    119
    
    Dot Patterns
    119
    
    Pin Labels
    120
    
    Twenty-Four-Pin Graphics
    120
    
    The Graphics Command
    121
    
    Column Reservation Numbers
    122
    
    A Simple Graphics Program
    123
    
    Using Hand-Calculated Data to Print Graphics
    123
    
    Using Software and Graphics
    125
    
    Individual Graphics Option Commands
    127
    
    The Reassi Ning Command
    127
- User-Defined Characters
  128
  - User-Define D Characters
    128
    
    Designing Your Characters
    128
    
    Designgrids
    129
    
    Defining Your Characters
    130
    
    Data Numbers
    131
    
    Sending Information to Your Printer
    132
    
    Printing User-Defined Characters
    134
    
    Copying ROM Characters to RAM
    135
    
    Letter Quality Characters
    135
    
    Proportional Mode Characters
    136
    
    Superscripts and Subscripts
    136
    
    Mixing Print Styles
    137
- Maintenance and Transportation
  139
- Cleaning the Printer
  140
- Replacing the Ribbon
  141
- Transporting the Printer
  145
Chapter 6 Troubleshooting

148
- Troubleshooting
  148
- Problems and Solutions
  149
- Data Dump Mode
  153
Chapter 7 Using Printer Options

154
- Using Printer Options
  154
- The Cut Sheet Feeder
  155
  - Installation
    155
    
    Loading Paper
    159
    
    Testing the Printer in the Cut Sheet Feeder Mode
    162
    
    Loading Envelopes
    164
    
    Using the Cut Sheet Feeder
    166
    
    Control Panel Operation
    167
    
    Software Operation
    167
    
    Switching between the Cut Sheet Feeder and Continuous Paper
    170
    
    Loading Single Sheets
    171
    
    Removing the Cut Sheet Feeder
    173
- The Pull Tractor
  174
  - Installation
    174
    
    Loading Paper
    177
    
    Removing the Pull Tractor
    184
  - Interface Boards
    186
    
    Choosing an Interface
    186
    
    Compatible Interfaces
    186
    
    Installing the Interface Board
    187
  - The Multi-Font Module
    198
    
    Installation
    198
    
    Selecting a Font
    200
Chapter 8 Command Summary

201
- Command Summary
  201
- Commands in Numerical Order
  205
- Commands Arranged by Topic
  208
  - Printer Operation
    208
- MSB Control
  211
- Data Control
  212
- Vertical Motion
  213
- Horizontal Motion
  218
- Overall Printing Style
  221
- Print Size and Character Width
  223
- Print Enhancement
  227
- Word Processing
  230
- Character Tables
  231
- Appendix A
  
  238
  - Printer Specifications
    238
  - Double-Bin Cut Sheet Feeder Specifications
    239
    
    Character Fonts
    239
    
    Paper Width
    239
  - Interface Specifications
    245
  - Initialization
    249
  - Default Settings
    250
    
    User-Defined Characters
    250
- Appendix B
  
  251
  - Proportional Width Table
    252
  - Character Tables
    256
  - Glossary
    259
  - Print Quality
    263
  - Index
    265

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Epson LQ-2550 Technical Manual

Epson LQ-2550 Technical Manual (301 pages)

Brand: Epson | Category: Printer | Size: 6 MB

Table of Contents

Table of Contents

5
- Chapter 1 General Description
  
  6
  - Features
    9
  - Figure 1-1. Exterior Views of the LQ-2550
    9
  - Table 1-1. Optional Units
    10
  - Table 1-2. Optional Interface Boards
    10
  - Specifications
    11
    
    Figure 1-2. Printhead Pin Configuration
    11
    
    Hardware Specifications
    11
    
    Line Feed Speeds
    12
    
    Table 14. Cut Sheet Paper Specified Conditions
    13
    
    Figure 1-4. Fanfold Paper Printable Area
    14
    
    Table 1-5. Fanfold Paper Specified Conditions
    14
    
    Figure 1-5. Label Printable Area
    15
    
    Table 1-6. Ribbon Cartridge Specification
    16
    
    Table 1-7. Dimensions and Weight
    16
    
    Table 1-8. Electrical Specifications
    16
    
    Table 1-9. Environmental Conditions
    17
    
    Firmware Specifications
    18
    
    Table 1-3. 1
    18
    
    Table 1-10. Printing Mode
    19
    
    Figure 1-6. Character Matrix
    20
    
    Table 1-11. Character Matrix and Character Size
    21
  - Interface Overview
    22
    
    8-Bit Parallel Interface
    22
    
    Bit Parallel Interface Specifications
    22
    
    Figure 1-8. 36-Pin 57-30360 Connector
    22
    
    Table 1-12. 8-Bit Parallel L/F Connector
    23
    
    Table 1-13. Select/Deselect Control
    24
    
    RS-232C Serial Interface Specifications
    25
    
    Table 1-14. Serial Interface Handshaking
    25
    
    Figure 1-10. Serial Data Transmission Timing
    26
    
    Figure 1-11. Serial Interface Connector
    26
    
    Table 1-15. RS-232C Serial Interface Connector
    27
  - Figure 1-12. Self-Test Printing (LQ)
    28
  - Self-Test Operation
    28
  - Table 1-16. Self-Test Operation
    28
  - Hexadecimal Dump Function
    29
  - Table 1-17. Hexadecimal Dump Operation
    29
  - Printer Initialization
    30
    
    Default Values
    30
    
    Hardware Initialization
    30
    
    Software Initialization
    30
  - Error Conditions and Buzzer Operation
    31
    
    Buzzer Operations
    31
    
    Error Conditions
    31
  - Figure 1-14. LQ-2550 Component Locations
    32
    
    Overview
    33
    
    Printer Mechanism
    33
    
    Paper Handling and Operations
    34
    
    Figure 1-16. ROMA Board
    35
    
    ROMA Board (Main Board)
    35
    
    Figure 1-17. ROPS/ROPSE Board
    36
    
    ROPS/ROPSE Board
    36
    
    Fan Unit
    37
    
    Figure 1-18. Fan Unit
    37
    
    Figure 1-19. Housing
    37
    
    Housing
    37
    
    Control Panel
    38
    
    Figure 1-20. Control Panel
    38
    
    Hardware Specification
    38
    
    Seiectype Function
    40
  - Main Components
    32
- Chapter 2 Operating Principles
  
  41
  - Optional Equipments
    63
  - Table
    124
    
    Optional Interfaces
    155
Disassembly, Assembly, and Adjustment

158
- General Repair Information
  163
- Disassembly and Assembly
  167
  - Printhead Removal
    168
  - Upper Case Removal
    169
  - Push Tractor Unit Removal
    170
  - Push Tractor Unit Disassembly
    171
  - Circuit Board Removal
    172
  - ROMA Control Board Removal
    172
  - ROPS/ROPSE Power Supply Board
    172
  - Case Open Sensor Removal
    174
  - Control Panel Removal
    174
  - Battery Removal
    175
  - Cooling Fan Removal
    176
  - Printer Mechanism Disassembly
    177
  - Printer Mechanism Removal
    177
  - Color Select Unit Removal
    178
  - Cartridge Base Removal
    179
  - Cable Removal
    180
  - Paper Tension Assembly Removal
    181
  - Carriage Motor Removal
    182
  - Paper Feed Motor Removal
    183
  - Platen Gap Motor Removal
    184
  - Head Fan Motor Removal
    185
  - Platen Removal
    186
  - Carriage Home Position Sensor Removal
    187
  - Paper End Sensor Removal
    187
  - Platen Gap Home Position Sensor
    188
  - Paper Width Sensor Removal
    189
  - Removal
    190
  - Paper Loading Trigger Assembly Removal
    192
  - Paper Thickness Sensor Assembly
    194
  - Paper Guide Plate Removal
    195
  - Paper Holding Roller Assembly Removal
    196
  - Left Frame Removal
    197
  - Paper Feed Roller Assembly Removal
    199
  - Timing Belt Removal
    200
- Adjustment
  201
  - Timing Belt Tension Adjustment
    202
- Paper Feed Motor Backlash Adjustment
  203
- Parallelism Adjustment between Carriage Guide
  204
- Platen Gap Home Position Sensor Mounting
  206
- Platen Gap Initial Value Write Operation
  208
- Bi-Directional Printing Alignment
  209
- Troubleshooting
  211
- Unit Replacement
  218
- Figure 1-15. Model-5560 Printer Mechanism
  236
- Chapter 3
  
  237
- Chapter 4
  
  237
- Chapter 5
  
  237
- Chapter 6 Maintenance
  
  237
  - Preventive Maintenance
    238
  - Lubrication and Adhesive Application
    238
Appendix

242
- A.1.L ROMA Board
  246
  - Hm65256Bsp-15
    246
    
    Wpd43257C-15L
    260
    
    Eo5A1Oaa
    261
    
    E05A02La
    264
    
    E05A09Ba
    265
    
    Stk6981 H
    269
    
    Stk66082E
    274
    
    Tl431
    279
  - Tl594
    281
  - Njm2903
    282
- Principle IC Specifications
  246
- Connector Pin Assignments
  283
- D R a W I N G S
  294

Epson LQ-2550 Product Support Bulletin

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