Service manual

Table of Contents
I II
Table of Contents 5. Printer Subassemblies ....................................5-1
1. Introduction ............................................ 1-1
2. Safety Precautions ....................................... 2-1
3. Keeping the Printer Running ............................... 3-1
3.1 Basic Rules .......................................... 3-1
3.2 Cleaning ............................................. 3-2
3.2.1 Cleaning the Platen and Surrounding Areas ................ 3-2
PRINT TEST 3 .......................................... 3-3
3.2.2 Cleaning Procedures ................................. 3-4
3.3 Status and Error Messages .............................. 3-5
4. Specific Printer Functions ................................. 4-1
4.1 Print Gap Ajustment .................................... 4-1
4.1.1 Principle .......................................... 4-1
4.1.2 AGC Procedure ..................................... 4-2
4.1.3 AGC Adjust ........................................ 4-3
4.1.4 Automatic Gap Control (AGC) .......................... 4-4
4.1.5 Programmed Copy Control (PCC) ....................... 4-5
4.2 Print Head - Tilting Principle and related Print Speed ........... 4-6
4.2.1 Print Speed in DATA (DRAFT) Mode ..................... 4-7
4.4.2 Print Speed in NLQ Mode ............................. 4-7
4.4.3 Print Speed in LQ Mode 1 ............................. 4-8
4.4.4 Print Speed in LQ Mode 2 ............................. 4-8
4.3 Positioning System - Horizontal Positioner ................... 4-9
4.4 Paper Run / Paper In Control ............................ 4-10
4.5 Paper Path .......................................... 4-11
4.5.1 Paper Transportation Principle ......................... 4-11
5.1 Basic Elements of the Printer .............................5-1
5.2 Main Subassemblies ....................................5-2
5.3 Internal Wiring Scheme ..................................5-3
6. Built In Diagnostics and Trouble Shooting ....................6-1
How to use this Section .....................................6-1
6.1 Power related Problems .................................6-2
6.2 Error Messages ........................................6-2
6.3 No Printout ...........................................6-5
6.4 Operator related Problems ...............................6-6
6.5 Print related Problems ...................................6-7
6.6 Ribbon or Carriage-related Problems .......................6-9
6.7 Print Tests ...........................................6-9