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EPSON
IMPACT SERIAL DOT MATRIX PRINTER
DFX-8500
SERVICE MANUAL
SEIKO EPSON CORPORATION
4009310
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NOTICE All rights reserved. Reproduction of any part of this manual in any form whatsoever without SEIKO EPSON’s express written permission is forbidden. The contents of this manual are subjects to change without notice. All efforts have been made to ensure the accuracy of the contents of this manual. However, should any errors be detected, SEIKO EPSON would greatly appreciate being informed of them. The above notwithstanding SEIKO EPSON can assume no responsibility for any errors in t
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PRECAUTIONS Precautionary notations throughout the text are categorized relative to 1) personal injury and 2) damage to equipment. WARNING Signals a precaution which, if ignored, could result in serious or fatal personal injury. Great caution should be exercised in performing procedures preceded by WARNING Headings. CAUTION Signals a precaution which, if ignored, could result in damage to equipment. The precautionary measures itemized below should always be observed when performing repair/mainte
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PREFACE This manual describes functions, theory of electrical and mechanical operations, maintenance, and repair of DFX-8500. The instructions and procedures included herein are intended for the experience repair technician, and attention should be given to die precautions on the preceding page. The Chapters are organized as follows: CHAPTER 1. GENERAL DESCRIPTION Provides a general product overview, lists specifications, and illustrates the main components of the printer. CHAPTER 2. OPERATING
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REVISION SHEET Revision Issued Data Contents Rev. A May 18, 1998/ First issue Rev. B June 25, 1998 Second issue due to minor correction on the manual contents. v
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TABLE OF CONTENTS CHAPTER 1. GENERAL DESCRIPTION CHAPTER 2. OPERATING PRINCIPLES CHAPTER 3. DISASSEMBLY AND ASSEMBLY CHAPTER 4. ADJUSTMENT CHAPTER 5. TROUBLESHOOTING CHAPTER 6. MAINTENANCE APPENDIX vi
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CHAPTER 1 GENERAL DESCRIPTION 1.1 FEATURES.............................................................................................................1-1 1.2 SPECIFICATIONS..................................................................................................1-3 1.2.1 Printing Specification............................................................................................................. 1-3 1.2.2 Paper Feeding...........................................................
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1.5.4 C204 DRV-B Board................................................................................................................1-41 1.5.5 C204 SUB Board....................................................................................................................1-41 1.5.6 C204 PSB/PSE Board............................................................................................................1-42 1.5.7 Control Panel............................................................
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GENERAL DESCRIPTION 1.1 FEATURES The DFX-8500 is a 18-pin, serial, dot matrix printer with a maximum speed of 1120 characters per second (cps). It is designed for business use and provides high-speed, high-volume printing and continuous-sheet handling. The main features of the printer are: Maximum printing speeds: 1120 cps (high-speed draft mode) 840 cps (draft mode) 210 cps (NLQ mode) at 10 cpi Advanced paper handling: 10 inches per second (ips) paper feeding Paper jam dete
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DFX-8500 The following table shows options. Table 1-1. Option Code Name #8766 Ribbon cartridge #8767 Ribbon pack #8309 Pull tractor unit C81500X Paper cutter C81507X Perforation cutter C82305* Serial interface card (inch screw) C82306* Serial interface card (mm screw) C82307* 32-KB intelligent serial I/F card (inch screw) C82308* 32-KB intelligent serial I/F card (mm screw) C82310* 32-KB intelligent parallel I/F card (inch screw) C82311* 32-KB intelligent parallel I/F card (mm screw) C82312* Loc
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GENERAL DESCRIPTION 1.2 SPECIFICATIONS This section describes the specifications for DFX-8500. 1.2.1 Printing Specification Print method : Impact dot matrix Number of pins : 18-pin (Refer to Figure 1-2.) Print pin arrangement : 9 x 2 Print pin diameter : 0.0114 inches (0.29 mm) Color : Black Print direction : Bi-directional with logic seeking Print speed and printable columns: Refer to Table 1-2. 0.35 mm (1/72") 2.82 mm (8/72") 1.69 mm (1/15") Figure 1-
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DFX-8500 Resolution: Refer to Table 1-3. Table 1-3. Resolution Print Mode Horizontal Density Vertical Density Adjacent Dot Print High speed draft 90 dpi 72 dpi No Draft 120 dpi 72 dpi No Draft condensed 240 dpi 72 dpi No Draft emphasized 120 dpi 72 dpi Yes NLQ 240 dpi 144 dpi No 60, 72, 80, 90, 120 or 144 72 dpi Yes Bit image dpi 120 or 240 dpi 72 dpi No Control code: ESC/P and IBM 2381 Plus emulation Character tables: Standard version (11 character tables): Italic table PC437 (US, S
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GENERAL DESCRIPTION Character tables and type faces: Refer to Table 1-4. Table 1-4. Character tables and type faces Character Table Bitmap Font Standard version Italic Table EPSON Draft PC437 (US, Standard Europe) EPSON Roman PC850 (Multilingual) EPSON Sans Serif PC860 (Portuguese) PC861 (Icelandic) PC863 (Canadian French) PC865 (Nordic) Abicomp BRASCII Roman 8 ISO Latin 1 Italic table NLSP version Italic Table EPSON Draft PC437 (US, Standard Europe) EPSON Roman PC850 (Multilingual) PC437 Gre
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DFX-8500 1.2.2 Paper Feeding Feeding method: Push tractor feed (front / rear) Push and pull tractor feed (front / rear) Feeder: Front push tractor, rear push tractor, pull tractor (option) Paper insertion side alignment : Left Paper path: Tractor (front in, rear in, top out) Line spacing: 1 / 6 inches or programmable in increments of 1 / 216 inches. Feed speed: 1/ 6-inch feed: 26.5 ms Continuous feed: 0.251 mps (m/s). 9.9 ips (inch/sec) Note : The feeding
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GENERAL DESCRIPTION 1.2.6 Safety Approvals 120 V version: Safety standards : UL1950 with D3 CSA C22.2 No.950 with D3 EMI : FCC part 15 subpart B class B CSA C108.8 class B 230 V version: Safety standards : EN60950 (VDE, NEMKO) EMI : EN55022 (CISPR pub.22) class B AS / NZS 3548 class B 1.2.7 CE Marking 230 V version: Low Voltage Directive 73/23/EEC : EN60950 EMC Directive 89/336/EEC : EN55022 class B EN61000-3-2 EN61000-3-3 EN50082-1 IEC801-2 IEC801-3 IEC801
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DFX-8500 1.2.11 Printable area Continuous paper : Refer to Figure 1-3. LM RM PW TM ABC D WX Y Z PL ABC D W XYZ BM ABC D W XYZ . Continuous Paper PW (width) Refer to Section 1.2.12. PL (length) Refer to Section 1.2.12. LM (left margin) 13 mm to 31mm RM (right margin) 13 mm or more TM (top margin) 2.6 mm or more BM (bottom margin) 4.2 mm or more Notes 1: In the top 75 mm area, the paper feeding pitch may be irregular. Notes 2: If the optional pull tractor is used, the top 120 mm area should not
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GENERAL DESCRIPTION Labels : Refer to Figure 1-4. LM RM PW TM Label Label PL Label Label BM . Continuous Paper PW (width) Refer to Section 1.2.12. PL (length) Refer to Section 1.2.12. LM (left margin) 13 mm to 31mm RM (right margin) 13 mm or more TM (top margin) 2.6 mm or more BM (bottom margin) 4.2 mm or more Notes 1: Feeding backward or paper (PATH) selection are prohibited. Notes 2: If In the top 75 mm area, the paper feeding pitch may be irregular. Notes 3: If the optional pull tractor is
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DFX-8500 Continuous forms with labels : Refer to Figure 1-5. LM RM PW TM TFL Label Label BF L PL LF L R F L N on P r in table A r ea BM ABC D W X YZ TO L P r in ta ble A r ea BO L LO L Label R O L Continuous Paper PW (width) Refer to Section 1.2.12. PL (length) Refer to Section 1.2.12. LM (left margin) 13 mm to 31mm RM (right margin) 13 mm or more TM (top margin) 2.6 mm or more BM (bottom margin) 4.2 mm or more LFL (left margin from label) 65 mm or more RFL (right margin from label) 65 mm or
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GENERAL DESCRIPTION Overlapping multi-part forms : Refer to Figure 1-6. LM RM PW P e r f or at ions C a rri e r PL BM NA OL TM Continuous Paper PW (width) Refer to Section 1.2.12. PL (length) Refer to Section 1.2.12. LM (left margin) 19 mm to 31mm RM (right margin) 19 mm or more TM (top margin) 21.2 mm or more BM (bottom margin) 4.2 mm or more OL (overlapping length) Less than 13.3 mm NA (non printable area) 25.4 mm or more Notes 1: Feeding backward or paper (PATH) selection are prohibited. N
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DFX-8500 1.2.12 Paper and Media 1.2.12.1 Continuous paper (Single sheet and multi-part) Table 1-5. Continuous Paper Front Entry Rear Entry Minimum Maximum Minimum Maximum Width (inch) 4.0 16.0 4.0 16.0 (mm) 101 406 101 406 Length (inch) 4.0 17.0 4.0 17.0 (mm) 101 431 101 431 Copies 1 original + 6 copies 1 original + 5 copies Total Thickness (inch) 0.0025 0.021 0.0025 0.018 (mm) 0.065 0.53 0.065 0.46 2 Weight (g/m ) 52.6 82.7 52.6 82.7 (not multi-part) (lb) 14 22 14 22 2 Weight (g/m ) 41.4 56.4 4
