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DLQ-3000 & Upgrade Model
SERVICE MANUAL
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EPSON TERM NAL PR NTER
DLQ"3000 SERVICE MANUAL
EPSON
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 toerwuretheaccuracyof 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 this manual or the consequence thereof. Epson and Epson ESC/P are registered trademark of Seiko Epson Corporation. General Notice: Other product names used herein are for identication purposes only and maybe trademarks of their respective campanies.
@Copyright 1994 by SEIKO EPSON CORPORATION Nagano, Japan
PRECAUTIONS
Precautionary notations throughout the text are categorized relative to 1) personal injury and 2) damage to equipment. DANGER Signals a precaution which, if ignored, could result in serious or fatal personal injury. Great caution should be exercised in performing procedures preceded by DANGER Headings. WARNING Signals a precaution which, if ignored, could result in damage to equipment. The precautionary measures itemized below should always be observed when performing repair/ maintenance procedures.
DANGER
1. ALWAYS DISCONNECT THE PRODUCT FROM BOTH THE POWER SOURCE AND PERIPHERAL DEVICES PERFORMING ANY MAINTENANCE OR REPAIR PROCEDURE. NO WORK SHOULD BE PERFORMED ON THE UNIT BY PERSONS UNFAMILIAR WITH BASIC SAFETY MEASURES AS DICTATED FOR ALL ELECTRONICS TECHNICIANS IN THEIR LINE OF WORK. WHEN PERFORMING TESTING AS DICTATED WITHIN THIS MANUAL, DO NOT CONNECT THE UNIT TO A POWER SOURCE UNTIL INSTRUCTED TO DO SO. WHEN THE POWER SUPPLY CABLE MUST BE CONNECTED, USE EXTREME CAUTION IN WORKING ON POWER SUPPLY AND OTHER ELECTRONIC COMPONENTS.
2.
3.
1.
REPAIRS ON EPSON PRODUCT SHOULD BE PERFORMED ONLY BY AN EPSON CERTIFIED REPAIR TECHNICIAN. MAKE CERTAIN THAT THE SOURCE VOLTAGE IS THE SAME AS THE RATED VOLTAGE, LISTED ON THE SERIAL NUMBER/RATING PLATE. IF THE EPSON PRODUCT HAS A PRIMARY AC RATING DIFFERENT FROM AVAILABLE POWER SOURCE, DO NOT CONNECT IT TO THE POWER SOURCE. ALWAYS VERIFY THAT THE EPSON PRODUCT HAS BEEN DISCONNECTED FROM THE POWER SOURCE BEFORE REMOVING OR REPLACING PRINTED CIRCUIT BOARDS AND/OR INDIVIDUAL CHIPS. IN ORDER TO PROTECT SENSITIVE MICROPROCESSORS AND CIRCUITRY, USE STATIC DISCHARGE EQUIPMENT, SUCH AS ANTI-STATIC WRIST STRAPS, WHEN ACCESSING INTERNAL COMPONENTS. REPLACE MALFUNCTIONING COMPONENTS ONLY WITH THOSE COMPONENTS BY THE MANUFACTURE; INTRODUCTION OF SECOND-SOURCE ICS OR OTHER NONAPPROVED COMPONENTS MAY DAMAGE THE PRODUCT AND VOID ANY APPLICABLE EPSON WARRANTY.
2.
3.
4.
5.
PREFACE
This manual describes functions, theory of electrical and mechanical operations, maintenance, and repair of DLQ-3000. The instructions and procedures included herein are intended for the experience repair technician, and attention should be given to the precautions on the preceding page. The chapters are organized as follows:
CHAPTER 1. PRODUCT DESCRIPTION
Provides a general product overview, lists specifications, and illustrates the main components of the printer.
CHAPTER 2. OPERATING PRINCIPLES
Describes the theory of printer operation.
CHAPTER 3. DISASSEMBLY AND ASSEMBLY
Includes a step-by-step guide for product disassembly and assembly.
CHAPTER 4. ADJUSTMENT
Includes a step-by-step guide for adjustment.
CHAPTER 5. TROUBLESHOOTING
Provides Epson-approved techniques for adjustment.
CHAPTER 6. MAINTENANCE
Describes preventive maintenance techniques and lists lubricants and adhesives required to service the equipment.
APPENDIX
Describes connector pin assignments, circuit diagrams, circuit board component layout and exploded diagram.
The contents of this manual are subject to change without notice.
REVISION SHEET
Revision Rev. A REV.B Issue Date June 1,1994 November 22,1994 Revision Page 1st issue 2nd issue
TABLE OF CONTENTS
CHAPTER 1. CHAPTER 2. CHAPTER 3. CHAPTER 4. CHAPTER 5. CHAPTER 6. APPENDIX
PRODUCT DESCRIPTION OPERATING PRINCIPLES DISASSEMBLY AND ASSEMBLY ADJUSTMENT TROUBLESHOOTING MAINTENANCE
CHAPTER 1 Product Description
Table of Contents
1.1 FEATURES 1-1
1-2 1.2 SPECIFICATIONS 1.2.1 Hardware Specifications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-2 1.2.1.1 Paper Handling Specifications . . . . . . . . . . . . . . . . . . . . . . . . . . 1-2 1.2.1.2 Paper Specifications. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-3 1.2.1.3 Ribbon Catiridge Specifications . . . . . . . . . . . . . . . . . . . . . . . . . 1-5 1.2.1.4 Electrical Specifications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-6 1.2.1.5 Environmental Conditions. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-6 1.2.1.6 Reliability. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-6 1.2.1.7 Safety Approvals. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-6 1.2.1.8 Physical Specifications. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-6 1.2.2 Firmware Specifications. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-7 1.3 INTERFACE OVERVIEW 1.3.1 Parallel Interface Specifications. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1.3.2 Serial Interface Specifications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1.3.3 Optional Interface . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1.3.4 Interface Selection. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1.3.5 Prevention Host from Data TransferTimeout . . . . . . . . . . . . . . . . . . . .
1-1o
l-lo 1-12 1-14 1-14 1-14
1-15 1.4 OPERATING INSTRUCTIONS 1.4.1 Control Panel Operation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-15 1.4.2 Printer Stateand LCD/LED Indication . . . . . . . . . . . . . . . . . . . . . . . . . . 1-17 1.4.3 Self-test. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-18 1.4.4 Hexadecimal Dump Function. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-18 1.4.5 Setting Print . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-18 1.4.6 SelecType Function. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-19 1.4.6.1 SelecType Phase Transitions . . . . . . . . . . . . . . . . . . . . . . . . . . 1-19 1.4.6.2 SelecTypel and20perations. . . . . . . . . . . . . . . . . . . . . . . . . 1-19 1.4.6.3 Font and Pitch Selection Operations . . . . . . . . . . . . . . . . . . . . . 1-20 1.4.7 Program Reload Mode. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-20 1.4.7.1 Reprogramming Operation . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-20 1.4.7.2 Bootstrap . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-20 1.4.8 PrinterStatus and Buzzer . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-21 1.4.9 Printer Initialization . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-21 1.4.9.1 Power-on Initialization. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-21 1.4.9.2 Hardware Initialization. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-21 1.4.9.3 Software Initialization . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-21 1.4.9.4 SelecType initialization.. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-21 1.4.10 Default Settings.. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-22 1.5 MAIN COMPONENTS 1.5.1 BOARD ASSY., C124 MAIN . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1.5.2 BOARD ASSY., C124 PSB/PSE . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1.5.3 Printer Mechanism. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1.5.4 Housing Assembly. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-23 1-24 1-24 1-25 1-25
List of Figures
Figure Figure Figure Figure Figure Figure Figure Figure Figure Figure Figure Figure Figure Figure
-1. Exterior View of the DLQ-3000. . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-1
-2. Pin Configuration . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-2 -3. Printable Area for Cut Sheet. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-4 -4. Printable AreaforContinuous Paper. . . . . . . . . . . . . . . . . . . . . . . . 1-5 -5. Data Transmission Timing . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-10 -6. Handshaking for RS-232C Interface. . . . . . . . . . . . . . . . . . . . . . . 1-12 -7. Serial Data Transmission Timing . . . . . . . . . . . . . . . . . . . . . . . . . 1-13 -8. Panel Appearance . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-15 -9. SelecType Phase Transitions . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-19 -10. Bootstrap Program Flow. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-20 -11. BOARD ASSY., C124 MAIN. . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-23 -12. BOARD ASSY., C124 PSB/PSE. . . . . . . . . . . . . . . . . . . . . . . . . 1-23 -13. Printer Mechanism (M-5 L60). . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-24 -14. Housing Assembly . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-24
List of Tables
Table l-1. Optional Units.... . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-1 Table l-2. Paper Thickness Lever. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-3 Table l-3. Cut Sheet Paper (Single Sheet) Specifications . . . . . . . . . . . . . . . . 1-3 Table l-4. Cut Sheet Paper(Multi-part) Specifications . . . . . . . . . . . . . . . . . . . 1-3 Table l-5. Envelope Specifications. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-3 Table l-6. Continuous Paper(Single Sheet and Multi-part) Specifications. . . . 1-4 Table l-7. Continuous Paperwith Labels Specifications. . . . . . . . . . . . . . . . . . 1-4 Table l-8. Electrical Specifications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-6 Table 1-9. Printing Speed . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-8 Table l-10. Resolution . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-9 Table l-11. Signal and Connector Pin Assignments for Parallel interface . . . 1-11 Table 1-12. Serial Interface Handshaking. . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-12 Table l-13. Signal and Connector Pin Assignments for Serial interface. . . . . 1-13 Table l-14. Paper Feeding Functions. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-16 Table l-15. Printer Stateand LCD/LED Indication . . . . . . . . . . . . . . . . . . . . . 1-17 Table l-16. Initialize Default Settings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-22
DLQ-3000 Service Manual 1.1
Product Description
FEATURES
Optional color printing using the optional color ribbon (black, magenta, cyan, yellow). Use of ESC/P2 control codes Printing speed 120 Cps 10 cpi LQ character: 360 CPS 10 cpi draft: 444 Cps 10 cpi High speed draft: Copy capacity Up to 5 copies plus an original can be printed. High speed loading 1.5 second to load a sheet from cut sheet feeder. No DIP-switches to set 14 international and legal character sets. 8 character tables (standard model) 14 character tables (consolidated model) 4 scalable fonts, 9 bitmap LQ fonts and 2 draft fonts.
The DLQ-3000 is 24-pin serial dot-matrix and flat-bed type impact printer. The main features are:
Figure 1-1 shows an exterior view of the DLQ-3000 and Table 1-1 lists the optional units available for the DLQ-3000.
printer cover
\
paper-thickness
rol
I papel `ball
right edge guide
w
"L paper-release lever /
front paperguide
sprocke~ unit
\ \
Y
serial Interface
Figure 1-1. Exterior View of the DLQ-3000 Table 1-1. Optional Units
I I
Model C80630* S01 5066 S015067
I
I ,
Description
I
Cut Sheet Feeder
I I
1
I Ribbon Cartridge (Black) I Ribbon Cartridge (Color)
I
I I
S015068
I Film Ribbon Cartridge (Black)
*: The last digit vanes by country.
Product Descri~tion
DLQ-3UO0 Service Manual
1.2 SPECIFICATIONS
This section provides detailed information about the DLQ-3000.
1.2.1 Hardware Specifications
Printing method: Pin configuration: Pin diameter: Serial impact dot matrix 24 wires 0.0079 inch (0.2 mm)
0.86 mm=l/30''+l/2160"
6x0.023mm(=l-1080") ~ I j ~
I
~6x0.023mm(=14080")
R:
.
A
! &l
i
11-HZ
I
L
k m y
E
o
7 -
7
I
Figure 1-2. Pin Configuration
Print direction Text: Image: Bidirectional with logic seeking Uni-directional mode can be selected by software. Bidirectional with logic seeking Uni-directional mode can be selected by software and default setting.
1.2.1.1 Paper Handling Specifications
Feeding system: 1. Friction feed - Set the release lever to FRICTION. During envelope printing, set it horizontally the longer side. During No.6 envelope printing, the left sheet edge guide must beat the marked position. 2. Tractor feed - Set the release lever to TRACTOR. Do not perform reverse line feeds greater than 1/6 inch. - Set left and right sheet edge guides on the front paper guide at both ends. 1/360 inch (1/6 inch, 1/8 inch, or programmable in units as small as 1/360 inch) 42 ms 6 inches/see. Front and rear entry manual insertion, and optional CSF. Rear entry manual insertion, and optional CSF. Rear entry push tractor feed with paper parking function.
Feeding pitch: Feeding speed 1/6 inch line feed: Continuous feed: Paper path Cut sheet (Single): Cut sheet (Multi part): Continuous paper:
DLQ-3000 Service Manual The paper thickness lever must be set at the proper position as shown below.
Product Description
Table 1-2. Paper Thickness Lever
Lever Position Paper Thickness 0.06 mm -0.11 mm (0.0024 in. -0.0043 in.) 0.11 mm -0.15 mm (0.0043 in. -0.0059 in.) 0.15 mm -0.19 mm (0.0059 in. -0.0075 in.) 0.19 mm -0.25 mm (0.0075 in. - (0.0098 in.) 0.25 mm -0.31 mm (0.0098 in. -0.0122 in.) 0.31 mm -0.37 mm (0.0122 in. -0.0146 in.) 0.37 mm -0.42 mm (0.0146 in. -0.0165 in.) 0.42 mm -0.47 mm (0.0165 in. -0.0185 in.) 0.47 mm -0.51 mm (0.0185 in. -0.0201 in.) 0.51 mm -0.55 mm (0.0201 in. -0.0217 in.)
o
1 2 3 4 5 6 7 8 9
1.2.1.2 Paper Specifications
Table 1-3. Cut Sheet Paper (Single Sheet) Specifications
Width Length Thickness Weight Quality 92 mm -364 mm [3.6 in. -14.3 in.] 92 mm -364 mm [3.6 in. -14.3 in.] 0.065 mm -0.12 mm [0.0025 in. -0.0047 in.] 52.3 glm2 - 105 g/m2 [14 lb. -27 lb.] Standard and recycled paper (not curled, folded, or crumpled)
Table 1-4. Cut Sheet Paper (Multi-part) Specifications
Width Length Copies Total thickness Weight Quality 92 mm -364 mm [3.6 in. -14.3 in.] 92 mm -364 mm [3.6 in. -14.3 in.] 1 original+ 5 copies (using fabric ribbon) 1 original only (using film ribbon) 0.12 mm -0.46 mm [0.0047 in. -0.018 in.] 40 qm2 -58 @m2 [12 lb. -15 lb.] Carbonless multi-part paper (not curled, folded, or crumpled)
Table 1-5. Envelope Specifications
Size Thickness Weight Quality NO.6 width 165 mm x length 92 mm [6.5 in. x 3.6 in.] No.1O width 241 mm x length 105 mm [9.5 in. x 4.1 in.] 0.16 mm 0.52 mm [0.0063 in. - 0.020 in.] 45 g/m2 -91 g/m2 [12 lb. -24 lb.] Plain paper, bond paper, airmail paper (not curled, folded, or crumpled and no glue at flaps)
Notes: . Variations in envelope thickness must be less than 0.25 mm (0.0098"). . When inserting envelopes, keep the longer side horizontal.
Product Description
DLQ-3000 Service Manual
Table 1-6. Continuous Paper (Single Sheet and Multi-part) Specifications
Width Single sheet length Copies Total thickness Single sheet weights Multi-part weights Quality 101-406 mm [4 - 16 in.1 101- 559 mm [4 - 22 in.] 1 original+ 5 copies (using fabric ribbon) 1 original only (using film ribbon) 0.065 mm - 0.46 mm [0.0025 in. - 0.018 in.] 52.3 g/m2 - 105 g/m2 [14 lb. - 27 lb.] 40 g/m2 - 58 g/m2 [12 lb. - 15 lb.] Standard paper, recycled paper, carbonless multi-pad paper
Table 1-7. Continuous Paper with Labels Specifications
Label size (W x L) I 63.5 mm (min.) x 23.8 mm (min.) [2.5 in. (min.) x 15/16 in. (min.)] I
Width of base~aDer I 101 mm- 406mm14in. x 16in.1 Length of base paper I 101 mm - 559 mm [4 in. x 22 in.] Thickness of base paper Total thickness Weight Quality Notes:
q
I
0.07 mm - 0.09 mm [0.0028 in. - 0.0035 in.] 0.16 mm - 0.19 mm [0.0063 in. - 0.0075 in.] 68g/m2[17 lb.] Plain paper
Labels must be continuous paper. - AVERY CONTINUOUS FORM LABELS q Examples of labels - AVERY MINI-LINE LABELS
See Figures 1-3 and 1-4.
3mm [0.12"] min. 3mm 10.12 '']min.
Printable area:
I
34Smm [13.6"] max.
+
Printable Area ,
4.2mm [ 0 . 1 7 " ] /
ABC t
)(YZ
T
4.2mm [ 0 . 1 7 " ] <
L
--
BC
)(YZ -1
Figure 1-3. Printable Area for Cut Sheet
DLQ-3000 Service Manual
101.6 mm -254 mm [4" - 10"] max. 345mm [13.6"] max. w 9mm [0.35"] min. o 0 0 0 T-K?
Product Description
I
Printable
area
{
0 0 0 0 0 0 0 T
4.2mm [0,17"] min. 4.2mm [0.17"] min. o 0 -o 0 o o 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0
0 0 0
\ 9mm [0.35"] min. o 0 0 0 0 0 0 0 0 0 0 0 0 0 0
0
-- ---------------
0 - - -0 0 0
0
Printable area
0
0 0 0
0 0 0 0 0 0 0 0 0 0 0 0
I
Figure 1-4. Printable Area for Continuous Paper
1.2.1.3 Ribbon Cartridge Specifications
q Ribbon cartridge (black): No. S015066 - Life: - Cartridge weight:
Note:
6 million characters at 48 dots/1 character 117 g (0.26 lb.)
- Cartridge dimensions: 153 mm (W) x 105 mm (D) x 33 mm (H) (6.0 in. x 4.1 in. x 1.3 in.)
Ribbon cartridges are not reusab/e.
q Ribbon cartridge (color): No. S015067 - Life: Black: Cyan: Magenta: Yellow: 1.4 million 1.0 million 1.0 million 0.7 million characters characters characters characters at at at at 48 48 48 48 dots/character dots/character dots/character dots/character
- Cartridge dimensions: 153 mm (W) x 105 mm (D) x 33 mm (H) (6.0 in. x 4.1 in. x 1.3 in.) - Cartridge weight:
Note:
117 g (0.26 lb.)
Ribbon cartridges are not reusab/e.
q Film ribbon cartridge (black): No. S015068 - Life: - Cartridge weight: ... --.. 0.1 million 10 cpi characters at LQ mode 109 g (0.24 lb.) ,,. - Cartridge dimensions: 153 mm (W) x 119 mm (D) x 33 mm (H) (6.0 in. x 4.7 in. x 1.3 in.)
Product Description 1.2.1.4 Electrical Specifications
DLQ-3000 Service Manual
Table 1-8. Electrical Specifications
Description I Rated voltage Input voltage range Rated frequency range Input frequency range Rated current Power consumption Dielectric strength 7A 120 V Version 230 V Version I 220-240 VAC 198-264 VAC 50- 60 t-fz 49.5- 60.5 tiz 4A
I
120 VAC 103.5-132 VAC
Approx. 105W (self-test in 10 cpi draft) 1000 VAC rms for 1 minute or 1500 VAC rms for 1 minute 1200 VAC rms for 1 second (between AC line and chassis, 500 VDC) (between AC line and chassis)
1.2.1.5 Environmental Conditions
Operating - Temperature: - Humidity: 5to35`C (41 to 95 "F) 10 to SOY. RH without condensation
Operating (using the optional film ribbon) - Temperature: 15to35`C (59 to 95 `F) - Humidity: 10 to 80Y0 RH without condensation Operating (during printing of envelopes or labels) - Temperature: 15to25"C (59 to 77 "F) - Humidity: 20 to 60% RH without condensation Storage - Temperature: - Humidity: -20 to60`C (-4 to 140 `F) 5 to 85% RH without condensation
Storage (when the optional film ribbon is installed) - Temperature: -20 to40`C (-4 to 104 `F) - Humidity: 5 to 857. RH without condensation
1.2.1.6 Reliability
MTBF: Printhead life: 8000 Power On Hours (25% duty) 200 million strokes/wire
1.2.1.7 Safety Approvals
Safety standards: U.S version: European version: U.S. version: European version: UL1950 with D3, CSA22.2 #950 with D3 EN 60950 (Tti) IEC950 (SEMKO, DEMKO, NEMKO, SETI) FCC part 15 subpart B class B Vfg.243 (VDE08;8 part 3, part 30) EN55022 (CISPR PUB. 22) class B
RFI:
1.2.1.8 Physical Specifications
Dimensions (W x D x H): Weight: Dimensions (W x D x H): (Including CSF) Weight: 670 mm x 509 mm x 285 mm (26.4 in. x 20.0 in. x 11.2 in.) 15.0 Kg (33.1 lb.) 670 mm x 559 mm x 445 mm (26.3 in. x 22.0 in. x 17.5 in.) 16.8 Kg (37.0 lb.)
DLQ-3000 Service Manual
Product Description
1.2.2 Firmware Specifications
Control code: Character sets: Standard model: ESC/P2 Legal and 14 internatioml character sets Italic table PC437 (Us.) PC850 (Multilingual) PC860 (Portuguese) PC863 (Canadian-French) PC865 (Nordic) BRASCII (Brazilian Portuguese) Abicomp (Brazilian Portuguese) PC437 Greek (Greek) PC852 (East Europe) PC853 (Turkish) PC855 (Cyrillic) PC857 (Turkish) PC866 (Russian) PC869 (Greek) PC861 (Iceland) 1S0 Latin IT (Turkish) 1S0 8859-7 (Latin/Greek) MAZOWIA (Polish) Code MJK (Czech) Bulgaria (Bulgarian) PC864 (Arabic) EPSON Roman EPSON %UIS serif EPSON Courier EPSON Prestige EPSON Script EPSON Script C EPSON OCR B EPSON Orator EPSON Orator S EPSON Draft EPSON High Speed Draft 8-32 points (in units of 2 points) EPSON Roman 8-32 points (in units of 2 points) EPSON Serif 8-32 pOintS (in Units of 2 points) EPSON Roman T 8-32 points (in units of 2 points) EPSON Saris Serif H Double-width Double-height Condensed Bold Double-strike Underline (single, double, single-broken, double-broken line) Overscore (single, double, single-broken, double-broken line) Strike through (single, double, single-broken, double-broken line) Italics Super/subscript Outline Shadow See Table 1-9. See Table 1-10. See Table 1-10. 128K byte
Consolidated model:
Bitmap fonts:
Scalable fonts:
Print mode:
Resolution: Printing speed: Printable columns: Input data buffer:
Product Description
DLQ-3000 Service Manual
Table 1-9. Resolution
Printing Mode Horizontal Density Vertical Density 1 Adjacent Dot Print I
High speed draft Draft Draft condensed LQ 8-pin bit image 24-pin bit image Raster graphics
*
90 dpi 120 dpi 240 dpi 360 dpi 60,80,90 or 120 dpi 120 or 240 dpi 60,90,120 or 180 dpi 360 dpi 180 or 360 dpi 1
180 dpi 180 dpi 180 dpi 180 dpi 60 dpi 60 dpi 180 dpi 180 dpi 180 or 360 dpi (*) z I
No No No No Yes No Yes No Yes
I
I
When a color ribbon is installed, the printer camot print 360 dpi vertically for raster graphics. In this case, the printer changes the vertical density.
Table 1-10. Printing Speed
Maximum Printing Spsed (cps) Print Mode Character Size Mode Mode Mode Mode Mode Mode Mode Mode Mode
o
High speed draft 10 cpi 10 cpi Draft 12 cpi 15 cpi Draft condensed 17 cpi 20 cpi 10 cpi LQ 12 cpi 15 cpi 17 cpi LQ condensed 20 cpi Raster (360dpi) 10 cpi 240 20 444 360 432 540 308 360 120 144 180 205
1
444 333 400 500 285 333 111 133 167 190 222 20
2 160 240 288 360 205 240 80 96 120 137 160 20
3 160 120 144 180 103 120 40 48 60 68 80 20
4 240 180 216 270 154 180 60 72 90 103 120 20
5 120 120 144 180 205 240 120 144 180 205 240 20
6 80 80 96 120 137 160 80 96 120 137 160 20
7 80 80 96 120 137 160 40 48 60 68 80 20
0 60 60 72 90 103 120 60 72 90 103 120 20
DLQ-3000 Service Manual These modes are selected by several conditions as follows flowchart;
Product Description
Prmthead t e m p . ` E s >12" C?
m
+
` E s B
NO +
MODE6
MODE5
NO
& e &
MODE2
Black color print? YES
Q
B
A
A
I
o
A
v
1
NO
MODE O
0,
---- Paper thickness YES >= 0.1 5mm ?
`& &&l
I
Product Description
DLQ-3000 Service Manual
1.3 INTERFACE OVERVIEW
The printer provides an 8-bit parallel interface and serial interface as standard. Moreover, it is possible to interface to various computers using the optional type-B interface board. This section describes the specifications of the standard interfaces.
1.3.1 Parallel Interface Specifications
Data format: Synchronization: Handshaking: Signal level: Adaptable connector: Data transmission timing: 8-bit parallel, IEEE-1284 compatibility mode By STROBE pulse By BUSY and ACKNLG signal TTL-compatible level, IEEE-P1284 level 1 device 57-30360 (Amphenol) or equivalent See Figure 1-5.
4
-STORBE
500 ns (min.)
4
500 ns (min.) 1500 ns (min.) O (min.)
500 ns -10 PS
w
Figure 1-5. Data Transmission Timing
Note: Transition time (rise time and fall time) of every input signal must be less than 200 ns and every output signal must be less than 120ns.
The BUSY signal is at a HIGH level before either -ERROR signal is at a LOW level or the PE signal is at a HIGH level until all these signals return to their inactive state. The BUSY signal is at a HIGH level in the following cases: During data reception (see the figure above) When the @t buffer is full When the INIT input signal is active During initialization When the ERROR signal is active In the self-test mode In the SelecType When the parallel interface is not selected. The ERROR signal is at a LOW level when the printer is in one of the following conditions: Printer hardware error (fatal error) A paper-out error Release lever operation error PE signal is at a HIGH level during paper out error.
DLQ-3000 Service Manual
Product Description
Table 1-11 shows the connector pin assignments and signal functions for the 8-bit paralIel interface.
Table 1-11. Signal and Connector Pin Assignments for Parallel Interface
Pin No. Signal Name
::;"% 19
`
0
Description Strobe pulse. Input data is latched at the falling edge of this signal. Parallel input data to the printer. Active-HIGH input. DATA1 LSB: MSB: DATA8 Indicates that data has been received and the printer is ready to accept more data. A HIGH level means the printer cannot accept further data. A HIGH level means a paper-out error. Always the logical opposite of the ERROR signal. Always at a HIGH level (pulled up to +5 V through a 1 K-ohm resistor). Auto feed execution means that a line feed is automatically performed upon input of a CR code. Checked when the printer is initialized. Active-LOW signal. Initialize printer. Minimum 50 US pulse is necessary. Active-LOW signal. A LOW level means that an error has occurred. Not used. Pulled up to +5V and shorted to +5V via Schottky diode, making these signals appear low to the host when the printer is turned off. Chassis GND Signal GND Not used. Not connected.
1
STROBE
In
2-9
DATA1 -8
20-27
In out out
out
10 11 12 13
ACKNLG BUSY
PE
28 29
30
SLCT
out
14
AFXT
In
31 32 36 18,35 17 `?:-30' 15,34
Note:
INIT ERROR
SLIN
16
In out
30
In out
Logic H Chassis GND GND NC -
-
/n/Out refers to the direction of signa/ flow as viewed from the printer.
Product Description
DLQ-3000 Service Manual
1.3.2 Serial Interface Specifications
Data format: Synchronization: Handshaking RS-232C serial Asynchronous By DTR (REV) signal or X-ON/OFF protocol
Table 1-12. Serial Interface Handshaking
I
DTR Signal
X-ONM-OFF Protocol
Description When the number of bytes remaining in the input buffer reaches 256 or less, the signal level goes to MARK and X-OFF code is sent to the host computer. This indicates that the printer is not ready to receive data. When the number of bytes remaining in the input buffer reaches 512 or less, the signal level goes to SPACE and X-ON code is sent to the host computer. This indicates that the printer is ready to receive data.
MARK
X-OFF (DC3/13H)
SPACE
X-ON (DC1/1 IH)
DTR (REV) Signal
S P A C E;
(+12V) f-~<
& I
512 byte 256, byte X-ON X-OFF
-+?
8K byte
!
~?
() Input Buffer Vacant Area
X-ON/X-OFF Protocol
;
Figure 1-6. Handshaking for RS-232C Interface
Word length Start bit: Data bit: Parity bit: Stop bit: Bit rate: Logic level: Error handling: Connector: 1 bit 8 bits Odd, Even, or None 1 bit or more 300, 6(X), 1200, 24(XI, 4800,9600,19,200 bps EIA-232D MARK (logical 1): -3V to -25V SPACE (logical 1): +3V to +25V When parity error is detected, the received byte is changed to the "*" character cede. Overrun error and framing error are ignored. 25 pin subminiature D-shell comector (female) or equivalent
DLQ-3000 Service Manual
Product Description See Figure 1-7.
,, T
Data transmission timing:
(+V)
- - - - - -
DTR (-v) (+V) RXD (-v)
Stari Bit Parly BiI
DTR Handshaking
(+V)
RXD
`:"['12:13[4[5161i
~da Bt...
Start Bt Parity Bit Start Data Bit Bt ( X - O F F ) Start Data Bii Bit (X-ON)
(-v) (+V)
TXD (-v)
X-ONX-OFF Protocol
Figure 1-7. Serial Data Transmission Timing
Notes: The value of "T" varies according to the input data. The word structure of serial data is 1 start bit + 8 data bits + parity (Odd, Even, or none) + 1 orrnore stop bits. Table 1-13 shows the connector pin assignments and signal functions for the RS-232C serial interface.
Table 1-13. Signal and Connector Pin Assignments for Serial Interface
Pin
No. 2
I
!
Signal Name UO
I
I
Description Transmit data. Connected directly to the DTR signal. Receive data. Signal ground level. Chassis GND. Not used. Not connected.
I
I TXD I DTR REV RXD CHASSIS GND NC
out
out In -
20
11
] Out I Indicates that the winterisreadvto receive data or not.
3 7
1
I SIGNAL GND I -
Other Note:
/n/Out refers to the direction of signa/ f/ow as viewed from the printer.
Product Description
DLQ-3000 Service Manual
1.3.3 Optional Interface
Type-B and Type level 2 optional interfaces are available except for C82305 and C82306 serial interface.
1.3.4 Interface Selection
The printer has 3 interfaces; the parallel interface, serial interface and optional interface. These interfaces are selected manually by SelecType or selected automatically.
q Manual selection
One of 3 interfaces can be selected by SelecType.
q Automatic selection
The automatic interface selection is enabled by SelecType. In this automatic interface selection mode, the printer is initialized to the idle state scanning in which interface receives data when it is powered on. The interface that receives data first is selected. When the host stops data transfer, the printer is returned to idle state. As long as the host sends data to the printer interface is busy state, the selected interface is let as it is.
q Interface state and interface selection
When the parallel interface is not selected, the interface is in a BUSY state. When the serial interface is not selected, the interface sends XOFF and sets the DTR signal MARK. When the optional interface is not selected, the printer sends disable commands to the optional interface. When the printer is initialized or returned to the idle state, the parallel interface is in a READY state, the serial interface sends XON and sets the DTR SPACE and the printer sends enable commands to the optional interface. Notice that the interrupt signal such as a -INIT signal on the parallel interface is not effective while that interface is not selected.
1.3.5 Prevention Host from Data Transfer Timeout
Hosts abandons data transfer to peripherals when a peripheral is in BUSY state for dozens of seconds continuously. To prevent hosts from this kind of timeout, the printer receives data very slowly, several bytes per minute, even if the printer is in BUSY state. This slowdown is started when the rest of the input buffer becomes several hundreds of bytes. At last, when the input buffer is full, the printer is continuously in BUSY state.
DLQ-3000 Sarvice Manual
Product Description
1.4 OPERATING INSTRUCTIONS
This section describes the control panel operation functions, self-test, hexadecimal dump, and printer initialization methods, etc.
1.4.1 Control Panel Operation
On the control Panel, there are five non-locking switches, four LEDs, and a 16-column liquid crystal display (LCD) & shown in Figure 1-8. -
0 POWER
= PAPER OUT
1'
r
JJ
u
1 0
TEAR OFF
LFFF
LOADI EJECT
Figure 1-8. Panel Apperance
Indicator Lights
s POWER (Green): s PAPER OUT (Red): s TEAR OFF (Orange): s PAUSE (Orange):
Lights when turning on the printer. Lights when the printer is out of paper Lights when the printer is in TEAR OFF mcde. Lights when the printer is in PAUSE mode.
Buttons
s SelecType:
9 TEAR-OFF:
H LOAD/EJECT:
s PAUSE:
s LF/FF:
H RESET:
s FONT: s PITCH:
Enters SelecType Level 1 and 2. The printer has 2 types of tear-off functions; manual tear-off and auto tear-off. The manual tear-off is performed by pressing the TEAR-OFF button. Auto-tear off is enabled by SelecType. When you press this button, the printer either loads new paper into the printer or ejects paper currently in the printer paper path. Press the PAUSE button during printing to stop printing and press the button to restart printing when the printer is paused. Even if the printer is paused, the printer interface does not stop receiving data until the input buffer is full. See Table 1-14. Press the PAUSE and LOAD/EJECT buttons at the same time to initialize the printer. When you press this button, the printer select a font from among the built-in fonts after enters SelecType mode. When you press this button, the printer select a character per inch after enters SelecType mode.
Product Description
DLQ-WOO Service Manual
Table 1-14. Paper Feeding Functions
Tractor Feed Operations Not Paper Out Press LF/FF shortly Press LF/FF for a few seconds Press LOAD/EJECT Press ~ button Press ~ button Insert a sheet to the manual insertion slot Line feed (*1) Form feed (*1) Paper park (*1) Micro feed (forward) (*3) Micro feed (backward) (*3) -- Paper Out State Load continuous paper Load continuous paper Load continuous paper
Friction Feed Not Paper Out Line feed Form feed Eject Micro feed (forward) Micro feed (backward) -- ! Paper Out State Load a sheet (*2) Load a sheet (*2) Load a sheet (*2) --
--
Load inserted sheet (*2)
(*l): When the printer is in tear-off state, these functions are performed after retiming from the tear-off position. ('2): If a manually inserted sheet is once loaded, the printer enters manual insertion mode. After that, even if data remains in the buffer, the printer goes into paper out error state at the end of every a sheet and waits for inserting the next sheet. CSF is enabled again by CSF sheets loading operation or by initialization. (*3): When the printer is in tear-off state, the micro feed function is used for adjusting the tear-off position. This adjusted position is saved into a non-volatile memory.
DLQ-3000 Service Manual
Product Description
1.4.2 Printer State and LCD/LED Indication
The table below shows the LCD messages and LED conditions that indicate the printer states except for SelecType. When the printer gets into more than one state, the printer indicates the highest priority state.
Table 1-15. Printer State and LCD/LED Indication
Priority Printer State
LCD Message Ready Hex Dump Printing Test printing Setting Printing Pause Data in Buffer Cut the Paper SelecType 1 SelecType 2 Please wait Paper Out Put Lever Back Cover Open Program Mode Please Turn Off
PE LED
PAUSE EAR OFI LED r LED
13 12
11 11
Stand-by Hex dump mode Ordinary printing Test printing Setting printing Pause Data is in buffer but the printer is paused Tear-off The entry to SelecType 1 The entry to SelecType 2 Print head is overheated Paper out error (*2) Release lever operation error (*3) Cover open error Program reload mode Fatal error (*4)
11 10
9 8 7 7 6
5
off off off off off off off off
off off off off off
On Blinking
off off off off off off off
1
I
4 3 2
I
Ormf'f on (*1) off off off off off off Orvoff('1 ) or-t/o ff(*l ) off On On I on/off(*l ] I I I Blinking On Otioff('1 )
I
IOriOff(*l)l
O n
I
off
Blinking
off
On
1
(*1): (*2):
on/off(*l) off off
(*3): (*4):
Depends on the previous printer state is pause state or not. Paper-out error occurs in the following conditions: Paper is not loaded after loading is attempted. The full sheet finishes printing after loading single sheets by manual insertion. The end of continuous paper is reached. Occurs when the friction lever is not at the proper position. (i.e. The lever is set up at the friction position even if continuous paper is loaded.) Fatal error occurs in the following conditions: Voltage of power supply is abnormal. The print head temperature is abnormal. - Carriage cannot move correctly. Error occurs during executing EEPROM control commands or program reload mode. The printer control circuit does not work correctly.
Product Description
DLQ-3000 Service Manual
1.4.3 Self-test
This section explains how to run the self-test. (1) Hold down the LF/FF button and turn on the printer to start the self-test. (2) If paper is not loaded, the printer attempts to load paper. (3) If the printer cannot load the paper, it will indicate paper out. In this case, insert paper again and press the LOAD/EJECT button. (4) Alphanumeric characters are printed continuously. (5) Press the PAUSE button and turn off the printer to quit self-test.
1.4.4 Hexadecimal Dump Function
The hexadecimal dump is a useful tool in troubleshooting data control problems. This section describes how to run the hex dump. (1) Hold down the LF/FF and LOAD/EJECT buttons at the same time and turn on the printer to enter hex dump mode. (2) If paper is not loaded, the printer attempts to load paper. (3) If the printer cannot load the paper, it will indicate paper out. In this case, insert paper again and press the LOAD/EJECT button. (4) First, the following message is printed in the language selected in the default-setting mode. When English, French, or German is selected. Hex Dump: When Italian is selected. Dump esadecimale: When Spanish is selected. Volcado hex: (5) The printer is ready to receive data. (6) The received data is printed as both hexadecimal codes and ASCII characters. If a corresponding printable character does not exit, the printer outputs a period (.). (7) Press the LF/FF button to print remaining data in data buffer. Then turn off the printer to quit hex dump mode.
Note: In hex dump mode, the character table depends on the default setting, and 10 cpi draft is selected automatically.
1.4.5 Setting Print
(1) Hold down the SelecType button and turn on the printer to enter the setting print. (2) If paper is not loaded, the printer attempts to load paper. (3) If the printer cannot load the paper, it will indicate paper out. In this case, insert paper again and press the LOAD/EJECT button. (4) First, the firmware version is printed. Then the user changeable printer default is printed in the language selected. (5) When the printer finishes the setting printing, the Printhead sheet is ejected or if it is continuous paper, the printer feeds the sheet to the tear-off position. Then the printer enter the ordinary stand-by mode. (6) All interfaces keep a busy state during the setting printing.
DLQ-3000 Service Manual
Product Description
1.4.6 SelecType Function
The DLQ-3000 is equipped with a SelecType function to change default settings.
1.4.6.1 SelecType Phase Transitions
The figure below shows the SelecType phase transitions.
Standby State
I
The entry to SelecType 2 I
Figure 1-9. SelecType Phase Transitions
1.4.6.2 SelecType 1 and 2 Operations
(1) When the SelecType 1 or 2 phase starts, the first feature is displayed. The feature is changed by pressing the ~ (next) and ~ (previous) button. When the desired feature is displayed on the LED, press the + (enter) button to display the option. (2) After choosing a feature by pressing the + (enter) button, the current selected option is displayed with "*". If it is not necessary to change the displayed option, press the + (escape) button to return to the feature menu. (3) When an option is displayed, press the & (next) and ~ (previous) button, so that options that are available for the selected feature are displayed. Choose the desired option and press the +enter) button to select that option. When the "Other" option is selected, another option menu appears. In this case, choose the desired option and press the + (enter) button again to select it. (4) Press the +- (escape) button to return to the previous menu. By pressing the+ (escape) button several times it is possible to return to the SelecType 1 or 2 entry state. (5) Press the SelecType button to exit from every SelecType phase. By pressing the SelecType button, the settings are saved into a non-volatile memory if there are any. After that, the SelecType initialization is performed automatically and the printer is returned to the stand-by state. The user's settings are effective at once and remain in effect until they are changed again. (6) Choose the "Standard Setting" in SelecType 2 feature menu. Select it by pressing the + (enter) button. The message "Really?" is displayed. If yes, then press the -+ (enter) button to execute, if no, press the + (escape) button to return to the feature menu. When the + (enter) button is pressed, all the settings are reset to the standard settings and then the printer is returned to the feature menu. After that, exit SelecType by pressing the SelecType button.
Product Description
DLQ-3000 Service Manual
1.4.6.3 Font and Pitch Selection Operations
(1) When the font or pitch selection phase starts, the currently selected default font or default pitch is displayed with "*". (2) Press the ~ (next) and ? (previous) button to the desired font or pitch, and press the+ (enter) button to select it. Then the selected font or pitch is displayed with "*". (3) Press the SelecType button to exit from the font or pitch selection phase. By pressing. the . . SelecType button, the settings are saved into a non-volatile memory if there are any. After that, the SelecType initialization is performed automatically and the printer is returned to the stand-by state. The user's settings are effective at once and remain in effect until they are changed again.
1.4.7 Program Reload Mode
The printer has a 128K byte Flash-EEPROM as a printer control software storage and a boot-strap program in a Mask-ROM. This Flash-EEPROM can electrically erase all the data in itself at once and reprogram. Using this program reload mode, the printer control software can be changed completely. The new software file can be transmitted to the printer through the built-in parallel interface with the IPL (Initial Program Loader) file. At first, the built-in bootstrap program loads the IPL file in the printer's RAM then jumps to the IPL start address. After that, the IPL program can control the printer. The IPL program loads the new printer control software file and reprograms the Flash-EEPROM. Finally, the IPL program jumps to the new software start address in the reprogrammed Flash-EEPROM.
1.4.7.1 Reprogramming Operation
(1) Turn on the printer while the TEAR-OFF, LF/FF, LOAD/EJECT and PAUSE buttons are depressed. (2) Transmit the IPL file through the built-in parallel interface. If the IPL ID code is not correct, the printer enter a fatal error state. The printer is also in a fatal error state when a sum error occurs during IPL file transfer. The IPL file must be Intel-hex format. (3) Transmit the new printer software file to the printer. At this time, the printer is controlled by the IPL program.
1.4.7.2 Bootstrap
The figure below shows a bootstrap program flow. Boot-strap Start
1
Is it reprogram
mode?
`
0
Start current Flash-E EPROM software. (jump to OO0400H) If Flash-E EPROM's program is not proper, display "Unproper F/W" and get into the fatal error state.
-OK
I
Display "Sum Error" or "Buffer Over" message. Then fatal error state.
Is it OK IPL ID code?
NO
Display "IPL ID Error" message. Then fatal error state.
YES Start IPL on RAM (Jump to 07 FFOOH)
Figure 1-10. Bootstrap Program Flow
DLC)-3000 Service Manual
Product Description
1.4.8 Printer Status and Buzzer
The DLQ-3000 is equipped with a buzzer on the control board. The buzzer sounds as follows: ... Paper out error: Release lever operation error: --- ----- Fatal error: Illegal operation in SelecType: .
Note:
(.):beepersounds for 100 ms and interval between beeps is 100 ms. (-):beepersounds for500 ms andintervai between beeps h 100 ms.
1.4.9 Printer Initialization
There are 4 initialization methods: power-on, hardware, software, and SelecType initialization.
1.4.9.1 Power-on Initialization
Power-on initialization is performed by turning the printer on. When the power-on initialization is performed: The printer mechanism is initialized. The interface selection is initialized to the idle state when the automatic interface selection is enabled or is initialized to the default interface when that function is disabled. The parallel interface AFXT signal level is sensed. All the printer settings are initialized to default. All the printing data is cleared. The download character definitions are cleared. The printer is set to the standby condition, if a fatal error does not occur.
1.4.9.2 Hardware Initialization
The hardware initialization is performed by The falling edge of a negative pulse when the parallel interface is selected or in automatic interface selection idle state. Hardware initialization request command that is sent to the printer from the optional interface is selected or the automatic interface selection idle state is selected. When the hardware initialization is performed: All the printing data is cleared. The download character definition is cleared. The printer settings are changed to default. The printer is set to the stand-by condition, if a fatal error does not occur.
1.4.9.3 Software Initialization
Software initialization is performed upon receipt of the control code ESC @. When the software initialization is performed: Data to be printed on the same line as MC @ that is not yet pfinted is cleared. Printer settings are changed to the default settings, except that the download character set is not cleared.
1.4.9.4 SelecTyps Initialization
When SelecType is terminated, initialization is also performed. When this initialization is performed: All the printer settings are changed to default but the download character definition is not cleared. The printer is set to the stand-by state.
Product Description
DLC?-3000 Service Manual
1.4.10 Default Settings
When users change, they can be refer to the default setting at the time of initialization of this printer. These standard settings are shown below.
Table 1-16. Initialize Default Settings
Font Pitch Character Table Page Length Line S~acina Top Margin Tractor Manual Insertion CSF Tractor Tractor CSF Roman
10 ct)i
Pc 437 11 inch A4 1/6 inch 0.33 inch (8.5 mm) 0.33 inch (8.5 mm) 0.33 inch (8.5 mm) 0.00 inch (0.0 mm) O column 136 column I Bi-directional English ESCIP2 Auto Selection 10 sec. 19,200 bps None off off off off copy 1
Bottom Margin Left Margin Right Margin
Gra~hic Print Direction Message Language Software Interface Interface Auto Selection Timeout Input Buffer Serial Interface Baud Rate Paritv Auto Tear-off Auto LF Auto CR AGM Copy Mode
CHAPTER 2 Operating Principles
Table of Contents
2-1 2.1 PRINTER MECHANISM OPERATION 2.1.1 Printing Mechanism. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-1 2.1.2 Carriage Mechanism . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-3 2.1.3 Platen Gap Mechanism. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-5 2.1.4 Ribbon Feed/Shift Mechanism . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-6 2.1.5 Paper Feed Mechanism. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-10 2-14 2.2 POWER CIRCUIT 2.2.1 Typeand Usage of the Power SupplyVoltages . . . . . . . . . . . . . . . . . . 2-14 2.2.2 Power Supply Circuit Operation. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-15 2-16 2.3 CONTROL CIRCUIT 2.3.1 Interface Circuit. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-18 2.3.2 Reset Circuit . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-19 2.3.3 MemoryBack-up Circuit . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-19 2.3.4 A/D Converter Detector Circuit . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-20 2.3.5 Detector Circuit for General Ports . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-21 2.3.6 CS/RFMotorController/Driver Circuit . . . . . . . . . . . . . . . . . . . . . . . . . . 2-22 2.3.7 Paper Feed Motor Controller/Driver Circuit . . . . . . . . . . . . . . . . . . . . . . 2-23 2.3.8 Carriage Motor Controller/Driver Circuit. . . . . . . . . . . . . . . . . . . . . . . . . 2-24 2.3.9 Printhead Controller/Driver Circuit . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-26 2.3.10 Control Panel Circuit . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-27
List of Figures
Figure 2-l. Printhead Operation Principle . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-1 Figure 2-2. Carriage Mechanism . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-3 Figure2-3. Platen Gap Adjustment Mechanism . . . . . . . . . . . . . . . . . . . . . . . . 2-5 Figure2-4. Ribbon Feed Mechanism . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-7 Figure 2-5. Ribbon Shift Gearing. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-8 Figure 2-6. CoreofPaperFeed Mechanism . . . . . . . . . . . . . . . . . . . . . . . . . . 2-11 Figure 2-7. PaperFeedSensor . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-12 Figure2-8. Release Mechanism . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-13 Figure 2-9. Power Circuit Block Diagram. . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-15 Figure 2-10. Control Circuit Block Diagram. . . . . . . . . . . . . . . . . . . . . . . . . . . 2-16 Figure2-11.interface Circuit Block Diagram. . . . . . . . . . . . . . . . . . . . . . . . . . 2-18 Figure 2-12. Reset Circuit Diagram . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-19 Figure2-13. Memory Back-up Circuit Block Diagram . . . . . . . . . . . . . . . . . . . 2-19 Figure2-14. A/D Converter Detection Circuit . . . . . . . . . . . . . . . . . . . . . . . . . 2-20 Figure 2-15. Detection Signal Assignment forGeneral Potts . . . . . . . . . . . . . 2-21 Figure2-16. CS/RF Motor Driver Circuit Block Diagram . . . . . . . . . . . . . . . . . 2-22 Figure 2-17. Paper Feed Motor Driver Circuit Block Diagram . . . . . . . . . . . . . 2-23 Figure 2-18. Carriage Motor Drive Circuit Diagram. . . . . . . . . . . . . . . . . . . . . 2-25 Figure 2-19. Printhead Controller/Driver Circuit Diagram . . . . . . . . . . . . . . . . 2-26 Figure 2-20. Printhead Drive Waveform . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-26 Figure 2-21. Control Panel Circuit Diagram. . . . . . . . . . . . . . . . . . . . . . . . . . . 2-27
List of Tables
Table 2-1 Printhead Specifications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-2 Table 2-2 Specifications of the Carriage Motor and Home Position Sensor . . . 2-4 Table 2-3 External Cooling Fan Unit Specifications . . . . . . . . . . . . . . . . . . . . . 2-4 Table 2-4 Platen Gap Sensor Specifications. . . . . . . . . . . . . . . . . . . . . . . . . . . 2-5 Table 2-5 CS/RF Motor Specifications . . . . . . . . . . . . . . . . . . . . . ..........2-6 Table 2-6 CS/RF Motor Rotation and Gearing Sequence (1) . .............2-6 Table 2-7 CS/RF Motor Rotation and Gearing Sequence (2) . .............2-8 Table 2-8 Coloring Sequences . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-8 Table 2-9 CS Sensor. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-9 Table 2-10. Color Ribbon Sensor. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-9 Table 2-11. Film Ribbon Sensor... . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-9 Table 2-12. Paper Feed MotorSpecifications . . . . . . . . . . . . . . . . . . . . . . . . . 2-10 Table 2-13. PEW Detector and Paper Loading Sensor Functions . . . . . . . . . . 2-11 Table 2-14. Paper Feed Sensor Specifications PEW Detectorand Paper Loading Sensor (Common Spec.) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-12 Table 2-15. Release Mechanism Modes . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-13 Table 2-16. Release Sensor Specifications . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-13 Table 2-17. Electrical Specifications of the Power Supply Boards. . . . . . . . . . 2-14 Table 2-18. DC Voltages . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-14 Table 2-19. A/D Converter Signal Assignment. . . . . . . . . . . . . . . . . . . . . . . . . 2-20 Table 2-2o. Signal Assignment of Detector Circuit for General Ports. . . . . . . . 2-21 Table 2-21. CS/RF Motor Current Consumption . . . . . . . . . . . . . . . . . . . . . . . 2-22 Table 2-22. Motor Drive Frequency Settings and Conditions. . . . . . . . . . . . . . 2-22 Table 2-23. Paper Feed Motor Controller/Driver Circuit Specifications . . . . . . 2-23 Table 2-24. Motor Drive Frequency Settings . . . . . . . . . . . . . . . . . . . . . . . . . . 2-23 Table 2-25. Carriage Motor Controller/Driver Circuit Specifications. . . . . . . . . 2-24 Table 2-26. Printhead Controller/Driver Circuit Specifications . . . . . . . . . . . . . 2-26 f,:
,, ,,/ ,: -... .,,
DLQ-3000 Service Manual
Operating Principles
2.1 PRINTER MECHANISM OPERATION
This section describes the M-5L60 printer mechanism and explains how it works.
2.1.1 Printing Mechanism
The printer mechanism is composed of the Printhead, ink ribbon, and ribbon mask. The Printhead is a 24-pin head employing impact dot printing. 24 dot wires are aligned in a 12 x 2 diamond layout inside the Printhead. Each wire has its own drive coil. 1) A drive signal is transmitted from the control circuit to the Printhead drive circuit. It is converted to the proper Printhead driving voltage, which energizes a corresponding coil. The energized coil then causes the iron core to become magnetized. 2) The magnetic force draws the actuating plate toward the core and the dot wire, which is connected to the core, and rushes toward the platen. 3) When the dot wire cause impact to the platen, pressing against the ribbon and paper, it prints a dot. 4) When the coil energizing is terminated, the magnetic force from the iron core vanishes. The actuating plate returns to its original position (the position before coil energizing), acting as a spring. The dot wire also returns to its original position.
,Actuating Plate , Stopper / Actuating Spring ~ /#wireRe,ettingsp
ring
Head Driving Coil Iron Core
Dot Wire >D d ~
paper~
: ,s~~~~as'
Platen
Figure 2-1. Printhead Operating Principle
Rev.A
2-1
Operating Principles The sequence used to print a dot has been described above.
DLQ-3000 Service Manual
The mechanism is equipped with a built-in thermistor for head temperature detection. The temperature detected by the thermistor is converted to an electric signal and fed back to the control circuit. As shown in Table 2-1, the energizing mode changes according to the paper thickness and head temperature. This control is aimed at providing consistent print quality. The temperature compensation is particularly necessary in order to minimize burning or degradation of the dot wire driving coils inside the Printhead, which may result from excessive temperatures due to continuous printing. Table 2-1 lists the Printhead unit specifications for the DUNOOO. Refer to later section for the electrical specifications.
Table 2-1. Printhead Specifications
Printing Methcd Number of wires Wire diameter Head life Weight Coil resistance Response period Driving voltage Driving condition Insulation resistance Environment conditions Printhead drive method I Impact Dot Printing 24 (12 x 2 lines, vertically) = number of driving coils 0.2 mm 200 million strokes /wire (monochrome fabric ribbon) 100 million strokes /wire (film ribbon, color ribbon) I Approx. 200 g
.,.
$4W'
I 8.19 +0.5(2 (at 25"C)
Normal service: 462 @ 31.5 to 38.5 VDC Normal Copy mode (when thick paper is used) Warm mode (when the head temperature is high) Cold mode (when the head temperature is below 120C) 500 VDC, 100 MQ or more Temperature: 5 -55`C Humidity: 10-857. I Flywheel type
. .. r ": -;,
2-2
Rev.A
DLQ-3000 Service Manual
Operating Principles
2.1.2 Carriage Mechanism
The carriage mechanism is composed of the carriage motor and home position sensor. This section also describes the exterior cooling fan. The high and low ends of the carriage is supported by the two carriage guide shafts. Since stepping motor is used as carnage motor, the carriage can move to or stop at any position. The rotation of the motor is transmitted to the carriage timing belt through the left and right carriage motor pulleys. The belt tension is maintained by the belt tensioner on the driven pulley side (the left side as seen from the front) and the tension spring. This is a maintenance free portion. The DLQ-3(XKI is equipped with an adjustment mechanism for the parallelism between the platen and carriage guide shaft. Therefore, lateral non-paralIel print density and abnormal loads on the printhead can be avoided (refer to section 2.1.3). The carriage on which the printhead is mounted is fixed to the timing belt, and moves horizontally. The home position sensor (photo interrupter ) is located at the reference position (on the right side as seen from the front), and transmits a signal when the sensor plate crosses the sensor. Once the carriage reference position is found using the home position sensor, the position control system becomes open- loop. After the goal position is determined, the control circuit calculates the number of steps required for driving the motor the required distance, and outputs it to the motor. An error is assumed if a home position signal is detected while printing or if the signal is not detected during initialization (home position seek). In these cases, the printer enters the error state (refer to section 1.3.8). In the same way, the speed is controlled according to programmed data.
External Cooling Fan Unit
The printhead and main/power supply boards are cooled by an external cooling fan. The external cooling fan unit is located on the right side of the mechanism, and blows air if the temperature of the heat sink of two switching FET's on the power supply board is excessively. The printer enters the slow printing state due to excessively high temperature until the head is cooled down by the cooling fan. Figure 2-2 illustrates the carriage mechanism. Tension Spring / Tentionor Carriage
Platen Gap Adjustment Mechanism Carriage Motor Platen Printhead
Cooling Air External Cooling Fan
Figure 2-2. Carriage Mechanism
Rev.A
2-3
Operating Principles
DLQ-3000 Service Manual
Table 2-2. Specifications of the Carriage Motor and Home Position Sensor
Carriage Motor Specifications
Type Power Supply Voltage Coil Resistance Drive Pulse Frequency Excitation Method
HP Sensor Specifications
4-phase 200-pole HB type stepping motor 35 VDC t 10Yo (31.5 to 38.5 ohms) 1.1 ohms * 10?!o(perphase,at25`C) 9 6 0 t o = ppS 1-2 phase and 2-2 phase excitation
Detection Element output Power Supply Voltage Signal Mode
Photo interrupter
I 17_L level
5 VDC k &fo Closed: Home Position Open :Any position except the Home Position
Note: The drive pulse frequency and excitation method vary according to the print speed.
`L.'
Table 2-3. External Cooling Fan Unit Specifications
Type
I
DC brush-less motor (with internal ball bearing) 35 VDC f 10% I I More than 3690 rpm
Power Supply Voltage ] Rotational S~ead
II
2-4
Rev.A
DLQ-30tM Service Manual
Operating Principles
2.1.3 Platen Gap Mechanism
The DLQ-3(XN is equipped with a platen gap adjustment mechanism which allows setting of the gap (between the platen and printhead) for paper of any thickness. The cross section of the carriage guide shaft which supports the front of the carnage is oval-shaped. The PG (Platen Gap) adjust lever (the left lever as seen from the front) is fixed to the carnage guide shaft with the carnage guide fixing nut, and these two interlock. As seen from the left side, therefore, counterclockwise rotation of the lever widens the platen gap, and clockwise rotation of the lever narrows the gap. On the right side as seen from the front, there is a shaft holder (LEVER,PARALLEL SHAFT) used to adjust the parallelism between the carriage wide shaft and platen. Because the cross section of the shaft holder is oval-shaped, the overall carriage guide shaft (including the carriage and head) moves up and down as the shaft holder rotates. Consequently, it can be pointed out that improper parallelism between the carriage guide shaft and platen leads to an improper platen gap. The platen gap sensor, which moves along the locus of the PG adjust lever, detects whether or not the adjust lever is set to position four or above. If the lever is set to position 4 or above (up to 10), the printer enters the "Copy Mode", and the printhead energizing mode switches accordingly. Table 2-4 gives the platen gap sensor specifications.
3'~>
f---l.-
/
Platen Gap sensor
Carriage
7r7
1/' ,
Printhead
LEVER, PARALLEL SHAH
/ /
IT
. ; )
1 4-'
`
-
-
-
~ - - -- - . la, , I -i + i4 \- -
-la - J
/
/
Carriage Guide Shaft (side core)
(%riage Guide Shaft (center core)
Figure 2-3. Platen Gap Adjustment Mechanism Table 2-4. Platen Gap Sensor Specifications
Detection Element output Power Supply Voltage
I
] Leaf switch I ITL level 5 VDC * syo o to 3 : closed 4 to 10: Open
Signal Mode
Rev.A
,.
2-s
Operating Principles
DLQ-3000 Service Manual
2.1.4 Ribbon Feed/Shift Mechanism
This mechanism is composed of the ribbon feed and ribbon shift mechanisms. The former mechanism winds up the ribbon inside the ribbon cartridge, and the latter shifts the ribbon cartridge back and forth. The switching operation corresponds to the rotation direction of the CS/RF motor as described below. Since a stepping motor is used, the cartridge can stop at or move to any position. CS/RF motor normal rotation (clockwise) - Ribbon Shift CS/RF motor reverse rotation (counterclockwise) - Ribbon Feed Table 2-5 specifies the CS/RF motor specification. The motor control system is open-loop so that when the color is being changed, the positioning is controlled using the reference position detected by the home position sensor. The motor speed and exaltation method change according to the print mode (carriage speed and copy/normal).
,#'-!. %
Table 2-5. CS/RF Motor Specifications
Item Content
Type Drive Voltage * HoId Current Coil Resistance Drive Pulse Frequency Excitation Method Drive Method
4-phase 48-pole PM type stepping motor 35 VDC f 10Yo 120 mA + 25 mA (per motor, 2-phase hold) 76 ohm+ 5% (per phase,at25`C) Color Select: 460,600 pps Ribbon Feed: 320,370,640,770 pps Color Select: 2-2 phase excitation Ribbon Feed: 2-2 & 1-1* Dhase excitation Constant-voltage Drive
* : 2-2 phase excitation is used under the 640 and 770 pps condition.
The mechanism is composed of the ribbon feed mechanism, CS/RF motor, and ribbon cartridge, all of which are inside the carriage. Counterclockwise rotation of the CS/RF motor makes the ribbon driving pulley rotate to feed the ribbon.
{--:..
Table 2-6. CS/RF Motor Rotation and Gearing Sequence (1)
CS/RF Motor Rotation Direction Linkage
C.c.w.
CS/RF Motor Pinion Gear+ Ribbon Planetary Gear+ Ribbon Feed Gears + Ribbon Ddve Gear
The ribbon cartridge case contains an endless ink ribbon. The ribbon passes between the ribbon feed roller and ribbon hold roller, and is wound by driving the ribbon feed roller attached to the ribbon drive gear. In order to prevent the ribbon from becoming loose while windin& a ribbon brake spring is irstalled at the ribbon exit. Figure 2-4 illustrates the ribbon feed mechanism.
2-6
Rev.A
DLQ-3000 Service Manual
Operating Principles
Ribbon Brake Spring /
Ribbon Cartridge Ribbon Feed
Ribbon Hold
anetary Gear Ribbon Drive /RF Motor
Figure 2-4. Ribbon Feed Mechanism e Ribbon Shift Mechanism >
Both the monochrome and color ribbons are 1 inch wide. The film ribbon is 8 mm wide. The monochrome ribbon and the film ribbon are entirely black, and the color ribbon is separated into 4 different colored equal-width bands. The ribbon shift mechanism shifts the ribbon cartridge back and forth on the carriage. The mechanism is composed of the CS/RF motor, ribbon shift gears, film ribbon sensor and color ribbon sensor. Color printing using 7 colors is made possible by loading the color ribbon cartridge on the carriage and sensoring with the color ribbon sensor. When the monochrome ribbon is loading on the carriage, and the monochrome ribbon is used, the ribbon shifts by 1/4 after each paper feed operation. This function lengthens the ribbon life. In the color mode sequence each color is selected corresponding to a host command. However, any host command for color selection will be ignored in monochrome mode. Instead, the ribbon shifts 1/4 inch after each paper feed operation. When the film ribbon is loading on the carriage, and the film ribbon is u