Epson LG1-1070, LG1-570 Service Manual

EPSON TERMINAL PRINTER
LG1-570/lo7cJ
L
4000566
REV.-B
.
REV.-A
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 a DANGER heading.
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.
2.
3.
1.
2.
3.
4.
5.
ALWAYS DISCONNECT THE PRODUCT FROM BOTH THE POWER SOURCE AND THE HOST COMPUTER BEFORE PERFORMING ANY MAINTENANCE OR REPAIR PROCEDURE.
NO WORK SHOULD
B&
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.
WARNING
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 THE 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
REMOVI”NG
OR REPLACING PRINTED CIRCUIT BOARDS AND/OR INDIVIDUAL CHIPS. IN ORDER TO PROTECT SENSITIVE
/.LP
CHIPS AND CIRCUITRY, USE STATIC DISCHARGE EQUIPMENT, SUCH AS ANTI-STATIC WRIST STRAPS, WHEN ACCESS­ING INTERNAL COMPONENTS. REPLACE MALFUNCTIONING COMPONENTS ONLY WITH THOSE COMPONENTS RECOMMENDED BY THE MANUFACTURER; INTRODUCTION OF SECOND-SOURCE
ICS
OR OTHER NONAPPROVED COMPONENTS MAY DAMAGE THE PRODUCT AND
VOID ANY APPLICABLE EPSON WARRANTY.
- ii -
REV.-B
PREFACE
This manual describes functions, theory of electrical and mechanical operations, maintenance, and repair of the
LQ-570/l
070. The instructions and procedures included herein are intended for the experienced repair technician, and attention should be given to the precautions on the preceding page. The chapters are organized as follows:
Chapter 1 -
Chapter 2 -
Chapter 3 -
Chapter 4 -
Chapter 5 -
Chapter 6 -
Provides a general product overview, lists specifications,
and illustrates the main components of the
Describes the theory of printer operation.
printer.
Includes a step-by-step guide for product disassembly and assembly.
Includes a step-by-step guide for adjustment.
Provides Epson-approved techniques for troubleshooting.
Describes preventive maintenance techniques and lists lubricants and adhesives required to service the equipment.
The contents of this manual are subject to change without notice.
-
iv -
REVISION SHEET
REVISON
DATE ISSUED
CHANGE DOCUMENT
A
June 20, 1991 1st issue
B
Sept. 6, 1991
Added information for the LQ-1 070:
l-i, l-ii, 1-1 - 1-8, 1-10, 1-11, 1-24, 1-26 - 1-28
2-i, 2-ii, 2-1 - 2-11, 2-13-
2-15, 2-17, 2-18 3-i, 3-ii, 3-5 - 3-20 4-i, 4-1 - 4-4, 4-6 5-i, 5-1
- 5-5, 5-9, 5-11 - 5-19
6-i, 6-1, 6-4
A-1, A-ii, A-1
- A-1 5, A-17
-
A-1
9, A-22, A-23
–v–
REV.-A
TABLE OF CONTENTS
CHAPTER 1.
GENERAL DESCRIPTION
CHAPTER 2.
OPERATION PRINCIPLES
CHAPTER 3.
DISASSEMBLY AND ASSEMBLY
CHAPTER 4.
ADJUSTMENTS
CHAPTER 5.
TROUBLESHOOTING
CHAPTER 6.
MAINTENANCE
APPENDIX
-
vi -
REV.-B
1.1
1.2
1.3
1.4
1.5
1.6
1.7
CHAPTER 1
GENERAL DESCRIPTION
FEATURES
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
1-1
SPECIFICATIONS
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
1-3
1.2.1 Hardware Specifications
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
1-3
1.2.2 Firmware Specifications
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
1-9
INTERFACE OVERVIEW
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
1-14
1.3.1 Parallel Interface
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
1-14
CONTROL PANEL
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
1-16
DIP SWITCHES AND JUMPER SETTING
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
1-18
1.5.1 DIP Switch Settings
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
1-18
1.5.2 Jumper Setting
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
1-19
OPERATING INSTRUCTIONS
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
1-20
1.6.1
1.6.2
1.6.3
1.6.4
1.6.5
1.6.6
1.6.7
1.6.8
1.6.9
1.6.10
1.6.11
Self-Test
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
1-20
Hexadecimal Dump Function
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
1-20
Paper-out Detection and Forms Override Function . . . . . . . 1-21
Error Conditions
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
1-21
Buzzer Operation
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
1-21
Printer Initialization
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
1-21
Default Values
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
1-22
Sheet Loading and Sheet Ejection
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
1-22
Tear-off Function
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
1-23
LEVER, G, ADJUST
. . . . . . . . . . . . . . . .
. .
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
1-24
printer Protection for Heavy-Duty Printing . . . . . . . . . . . . . . . . . . . . . 1-25
MAIN COMPONENTS
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
1-26
1.7.1
C062
MAIN Board (Main Control Circuit Board) . . . . . . . . . . . 1-26
1.7.2
C062
PNL Board (Control Panel Circuit Board) ............. 1-27
1.7.3
C062 PSB/PSE
Board (Power SupPlY Circuit Board) . . . 1-27
1.7.4 Printer Mechanism (M-5
E10/M-5E60)
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
1-28
1.7.5 Housing
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
1-28
1
-i
REV.-B
LIST OF FIGURES
Figure 1-1.
Figure 1-2. Figure 1-3. Figure 1-4. Figure 1-5. Figure 1-6. Figure 1-7. Figure 1-8. Figure 1-9. Figure l-10. Figure 1-11. Figure 1-12. Figure 1-13. Figure 1-14. Figure 1-15. Figure 1-16.
Table 1-1. Table 1-2. Table 1-3. Table l-4.
Table 1-5. Table 1-6. Table l-7. Table 1-8. Table 1-9. Table 1-10.
Table 1-11. Table 1-12. Table 1-13. Table 1-14. Table 1-15. Table l-16.
Exterior View of the
LQ-570/1070
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-2
Pin Configuration
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
1-3
Printable Area for Cut Sheets . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
. 1-6
Printable Area for Continuous Sheets
. . . . . . . . . . . . . . . . . . . . . . . . . . . .
1-6
Character Matrix
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
1-13
Data Transmission Timing . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
. 1-14
Control Panel . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
. 1-16
Self-Test Printout
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
1-20
Hexadecimal Dump Function
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
1-20
Lever Positions
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
1-24
LQ-570/l
070 Component Layout . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-26
C062
MAIN Board . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
. 1-26
C062
PNL Board . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
. 1-27
C062
PSB/PSE Board
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
1-27
Model-5El
O/5E60 Printer Mechanism
. . . . . . . . . . . . . . . . . . . . . . . . . . .
1-28
Housing
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
1-28
LIST OF TABLES
Interface Options . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
.
1-1
Optional Units
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
1-2
Specifications for Cut Sheets
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
1-4
Specifications for Cut Sheets
(Carbonless Duplicating Paper)
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
1-5
Specifications for Continuous Sheets
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
1-5
Envelopes
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
1-5
Label Specifications
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
1-5
Printing (Text Mode)
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
1-10
Printing (Bit Image Mode) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
. 1-11
Character Matrix and Character Size. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
1-12
Connector Pin Assignments and Signal Functions . . . . . . . 1-14
Settings for DIP Switch 1
(SW1)
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
1-18
Settings for DIP Switch 2
(SW2)..........
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
1-18
International Character Set Selection . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
1-19
Page Length . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
. 1-19
Lever Positions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
.
......... 1-24
1 -ii
REV.-B
1.1 FEATURES
The
LQ-570/l
070 are small, light-weight, low-cost, printers with advanced paper handling that is
compatible with the LQ-5 10/550/1010. The printer’s main features are as follows:
Use of
ESC/P
2 control codes Ability to print multi-point fonts Ability to receive and print raster graphic images Compatibility with the
LQ/SQ
series available on the market
Printing speeds: 225 characters per second
(CPS)
(high-speed draft, 10 characters per inch (cpi))
252
CPS
(draft, 12 cpi)
210
CPS
(draft, 10 cpi)
84
CPS
(LQ, 12 cpi)
64
cps (LQ, 10 cpi)
Optional interface card
Clear, easy-to-read printing with standard EPSON fonts Multiple fonts resident in the printer 9 LQ fonts (Roman, Saris
Seri~,
Courier, Prestige, Script, OCR-B, Script C, Orator, Orator-S)
1 draft font
Control panel switch selection of fonts, condensed, and cut-sheet feeder
(CSF) bin
Optional tractor unit for push-pull tractor feed Flexible handling of continuous paper
Three ways to insert continuous paper (front/bottom/rear path) Auto backout and auto loading (rear insertion) Use of continuous paper without removing
CSF
Attachment of standard tractor unit in either of two positions (push/pull) Easy handling of cut sheets with the optional cut-sheet feeder Two ways to insert cut sheets (front/top) Auto loading
The
LQ-570/l
070 are equipped with the standard EPSON 8-bit parallel interface. Various interface
(
options ensure compatibility with a wide variety of computers. Table 1-1 lists the interface options, Table
1-2 lists the optional units available for the
LQ-570/l
070, and Figure 1-1 shows an exterior view of
the
LQ-570/l
070.
.
Table 1-1. Interface Options
Model
Description
C82305
Serial interface card (inch screw)
C82306
Serial interface card (mini screw)
C82307
32KB serial interface card (inch screw)
C82308
32KB serial interface card (mini screw)
C82310
32KB parallel interface card
C82313
32KB
IEEE-488 interface card
Printing is not possible for the following baud rates :
1800, 200, 134.5, 110, 75 bps.
NOTES: Refer to the “Optional Interface Technical Manual” for details.
The asterisks
(’)
in the table above represent the last digit of the part numbers. This digit varies,
depending on the country. For instance, in the U.S. the last digit is 1.
1-1
REV.-B
Note:
Table 1-2. Optional Units
Model
Description
C80637*
Single-bin cut-sheet feeder (80-column)
C80638*
High-capacity cut-sheet feeder (80-column)
C80639*
SingI-bin
cut sheet feeder (1 36-column)
C80640*
High capacity cut sheet feeder (1 36-column)
C80019*
Tractor unit (80-column)
C80022*
Tractor unit (1 36-column)
7753
Fabric ribbon cartridge (80-column)
7754
Fabric ribbon cartridge (1 36-column)
7768
Film ribbon cartridge
(80-columd
1
7770
Film ribbon cartridge (1 36-column)
When a part number in the table above is followed by an asterisk (’), the last digit of the number varies, depending on the country. For example, in the U. S., the model number for a single-bin cut-sheet feeder (80-column) is
C80@.
3’7
(LQ-570)
(LQ-107O)
Figure 1-1. Exterior View of the
LQ-570/1070
1-2
REV.-B
1.2 SPECIFICATIONS
This section provides specifications
1.2.1 Hardware
Printing method Pin configuration
Feeding methods
Line spacing Paper insertion
Paper-feed speed
for the
LQ-570/l
070 printer.
Specifications
Serial, impact, dot matrix 24 wires
(12
X 2 staggered, diameter 0.2 mm)
Wires 1 Wires 2
f~ II
1,
I
ii
- ------’$
j+--------
--
-1_
1/90”
/
~ j +L____
!!’’0’”
------$ ~
~
1/90”
\ ~ +;-------
-
I
//
1:
/+
w
1/60” i
i
i
1
/60”
Figure 1-2. Pin Configuration Friction feed (front/top) Push tractor feed (rear) Pull tractor feed (front/bottom)
Push-pull tractor feed (with optional tractor) (rear)
1/6 inch, 1/8, or programmable in units of 1/360 inch
Friction feed Front or rear side
Tractor feed Front,
Friction without
CSF
.
Friction with CSF
Tractor
NOTE: The points below provide precautions for
bottom, or rear side
77.6
msec.(1/6-inch
feed)
2.2 inches per second
(ips) (continuous)
77.6
msec (1/6-inch
2.2
ips
(continuous)
77.6
msec (1/6-inch
2.2
ips
(continuous)
handling paper.
1. Friction feed (release lever in FRICTION POSITION). Paper must be loaded from the front or top entrance. Do not use continuous paper.
feed)
feed)
Do not perform any reverse paper feeds within the top 8.5 mm (.34
in.),
bottom 22 mm (.87 (top entrance), or bottom 40.2mm (1.6 in.) (front entrance) area. Do not perform reverse feeds greater than 1/6 inch after a paper end has been detected.
in.)
1-3
REV.-B
Use the paper tension unit.
Do not use multi-part cut-sheet forms, except with front insertion.
Do not perform reverse feeds greater than 1/6 inch when using envelopes.
2. Push tractor feed (release lever in REAR PUSH POSITION). Paper must be loaded from the rear entrance.
Release the friction-feed mechanism. Multi-part forms must be spot pasted beyond the perforation between the tractor holes. Paper for multiple copies must be carbonless multi-part paper. Use the paper tension unit. Do not perform reverse feeds greater than 4/15 inch. Since accuracy of paper feed cannot be assured after the paper end has been detected, please
do not perform reverse feeds after detection of a paper end.
3. Push-pull tractor feed (release lever in REAR PUSH POSITION). Paper must be loaded from the front, rear, or bottom entrance. Release the friction-feed mechanism. Remove the paper tension unit and attach the pull tractor unit. Ensure that there is no slack in the paper between the platen and the pull tractor. Precisely adjust the horizontal position of the pull tractor and push tractor sprockets. Paper for multiple copies must be spot pasted beyond the perforation between the tractor holes. Paper for copies must be a carbonless multi-part paper. Do not perform reverse feeds greater than 4/15 inch. Do not perform reverse feeds after the paper end has been detected.
4. Pull tractor feed (release lever in PULL POSITION).
Paper must be loaded from the front or rear entrance. Release the friction-feed mechanism. Remove the paper tension unit and attach the pull tractor unit. Insert the paper from either front or bottom. Paper for multiple copies must be spot pasted beyond the perforation between the tractor holes. Paper for copies must be a carbonless multi-part paper.
Do not perform reverse feeds.
Paper specifications See tables 1-3, 1-4, 1-5, 1-6, and 1-7
Table 1-3.
S~ecifications
for Cut Sheets (One-Part Paper)
Width
Length Thickness Weight Quality
148 mm to 257
(’420)
mm (5.8 in. to 10.1 (* 16.5) in.)
(top insertion)
182 mm to 257 (*364) mm (7.2 in. to 10.1 (* 16.5) in.) (front insertion) 364 mm (1 4.3 in.), maximum
0.065 mm to 0.14 mm (0.0025 in. to 0.0055 in.)
14 lb. to 24 lb. (52.3
g/m2
to 90
g/m2)
Standard paper (photocopier paper, etc.) Recycled paper (at normal temperatures)
(*136-column)
1-4
REV.-B
Table 1-4. Specifications for Cut Sheets (Carbonless Duplicating Paper)
NOTES:
NOTES:
Width Length Thickness
Weight
Quality Copies
182 mm to 216 (’364) mm (7.2 in. to 8.5 (* 14.3) in.)
257 mm to 297 mm (10.1 in. to 11.7 in.)
0.065 mm to 0.14 mm (0.0025 in. to 0.0055 in.) - single sheet
0.12 mm to 0.32 mm (0.0047 in. to 0.012 in.) - total 17 lb. to 24 lb. (52.3
g/m2 to 90
g/m2)
- single sheet
12 lb. to 15 lb. (40
g/m2 to 58
g\m2)
- each Carbonless duplicating paper 4 sheets (1 original and 3 copies)
(*136-column
Table 1-5. Specifications for Continuous Paper
Width
101 mm to 254 (“406) mm (4.0 in. to 10.0 (* 16) in.)
Thickness
0.065 mm to 0.10 mm (0.0025 in. to 0.0039 in.) - single sheet
0.065 mm to 0.32 mm (0.0025 in. to 0.012 in.) -total
Weight 14 lb. to 22 lb. (52.3
g\m’
to 82
g/m2)
- single sheet
12 lb. to 15 lb. (40
g/m2 to 58
g/m2)
- each
Quality Standard paper or carbonless duplicating paper
Recycled paper (at normal temperatures)
Copies
4 sheets (1 original and 3 copies)
(*:1 36-column)
Table 1-6. Envelopes
Size
No. 6= 166 mm X 92 mm No. 10= 240 mm X 104 mm
Thickness
0.16 mm to 0.52 mm (0.0063 in. to 0.0197 in.) Differences in thickness within the printing area must be less than
0.25
mm (0.0098 in.)
Weight 12 lb. to 24 lb. (40
g/m2 to 91
g/m2)
Quality Bond paper, standard paper, airmail Copies
Not available
Printing on envelopes is available only at normal temperatures and only using top insertion. Keep the longer side of the envelope horizontal during insertion. Place the left edge of a No. 6 envelope
at”the sheet guide setting mark.
Table 1-7. Label Specifications
Label size
Copies Thickness
2 1/2 in. X 15/16 in. 4 in. X 15/16 in. “ 4 in. X 1 7/16 in. Not available
0.07 mm to 0.09 mm (0.0028 in. to 0.0031 in.) - base paper
0.16 mm to 0.19 mm
(0.0063
in. to 0.0075 in.) -total
Printing on labels is available only at normal temperatures. Labels must be of the fanfold type.
Labels with pressure sensitive paper must be spot pasted beyond the perforation between the tractor holes. The total thickness must be less than or equal to 0.3 mm (0.01 18 in.). Labels can be printed out only if the temperature is between 5 and 35 degrees C (41 and 95 degrees F) and humidity is between 10 % and 80 % RH.
Examples of labels AVERY CONTINUOUS FORM LABELS
AVERY MINI-LINE LABELS Labels must be used with the pull tractor (front or bottom). Do not perform reverse feeds.
1-5
REV.-B
Printable area
See figures 1-3, 1-4, and 1-5
top insertion 148 - 257 mm (5.8
- 10.
1“)
148 - 257
(x
420) mm (5.8 - 10. 1“ {x 16.5))
front insertion 182
-
257 mm (7.2 - 10 1“)
182
-
257 (* 364) mm (7.2
- 10.
1“ (x 14.3’”))
.,
*
7
.,, Printable area max. 203.2 mm (8 in.)
-1 )
-1
4
~8.5
mm
‘:
F
~’~~~’
7
“ t
364mm
;
(14.3”) max.
:j
/,
*
.J-IJ&L
,,,mm
.A
(0.53”)
or more
v
Y
(* 136-column)
(80-column):
+1)
3.0 mm (O. 12 in.) or more when paper width is less than 229 mm (9 in.). 24 mm (0.9
in.)(top
insertion)\26
mm (1.0 in.)(front insertion) or more when paper width is 229 mm
(9.0 in.) to 257 mm (10.1 in.).
I
(136-column:)
3.0 mm (O. 12 in.) or more when paper width is less than 392 mm (1 5.4 in.). 29 mm (1.14 in.) (top insertion) /31 mm ( 1.22 in.) (front insertion) or more when paper width is 392 mm (1
5.4
in.) to 420 mm (1 6.4 in.). Paper-feed accuracy cannot be assured within 22 mm (0.87 in.) from the bottom edge of paper (top insertion). Paper-feed
accutacy cannot be assured within 40.2 mm (1 .58 in.) from the bottom edge of paper
(front insertion). Paper-feed accuracy cannot be assured within 22 mm (0.87 in.) from the top edge of paper.
Figure 1-3. Printable Area for Cut Sheets
101.254 mm (4 10”)
L
101.254 x406)
(4. 10“ (x
16)) J
*
1*
Printable area
I*?
1’
Max. 203.2 mm
(8”):
80 column
1-
1
0 0 0
Printable 0 area
0
J-
0 0 0
9 mm (O 35”)
:
;r:’r;,3~,)
-:­0
or more
t
0 0 c
Printable
:
area o
I
0 0 0
Max. 345.4 mm(i 3.6”): 136 cdum
0
0 0 0 0 0
L
0 0 0 0
0
0
0
0 0 0
(’
136-column)
Figure 1-4. Printable Area for Continuous Sheets
1-6
REV.-B
(80-column):
1) 13 mm (0.51 in.) or more when a paper width of 101 mm (4 in.) to 241 mm (9.5 in.) is used.
24 mm (0.9
in.)(rear insertion)\ 26 mm (1.0 in.)(front/bottom insertion) or more when a paper width
of 254 mm (10 in.) is used.
(1 36-column):
13 mm (0.51 in.) or more when a paper width of 101 mm to 401.3 mm (4 in. to 15.8 in.) is used. 15 mm or more when a paper width of 381 mm to 406 mm (15 in. to 16 in.) is used. 13 mm (rear
insertion) (0.5 1 in.) /1 7 mm (front/bottom insertion) (0.67 in.) is used. ( 136-column).
Ink ribbon
Type #7753 black ribbon cartridge (80-column)
#7768 film ribbon cartridge (80-column) #7754 black ribbon cartridge (1 36-column)
#7770 film ribbon cartridge (1 36-column) Color Black Life 2 million characters at 48 dots/character (black ribbon)
(80-column) 0.2 million characters at 48 dots/character (film ribbon)
(136-column) 0.3 million characters at 48 dots/character (film ribbon) Dimensions of ribbon cartridge
Fabric Type: (80-column): 293 mm (W) X 34 mm (H)
X 72 mm (D)
(136-column): 468.3 mm (W) X 34 mm (H) X 72 mm (D)
Film Type: (80-column): 293 mm (W) X 34 mm (H) X 72 mm (D) (136-column): 468.5 mm (W) X 34 mm (H) X 72 mm (D)
Mean cycles between failures
(MCBF) 3 million lines (excluding printhead)
Mean time between failures
(MTBF) 4000 power on hours (POH) (25% duty)
200 million strokes (black ribbon) 100 million strokes (film ribbon)
Safety standards UL1 950 with D3 (U.S. version)
CSA22.2#220
EN 60950 (TUV) (European version)
Radio frequency interference
(RFI)
FCC class B (U.S. version)
VDE0871 (self-certification) (European version)
Reliability
Life of
printhead
Safety approvals
Electrical specifications
120 V version
Rated voltage Input voltage range Rated frequency Input frequency Rated current Power consumption
insulation resistance
Dielectric strength
120
VAC
103.5 to 132
VAC
50 to 60 Hz
49.5 to 60.5 Hz
2.0 A
Approx. 33 W (during a
self-
test in draft mode, 10 cpi)
10 megohms, minimum (at 500 VDC between AC line and chassis).
1000
VAC rms for 1 minute or
1200
VAC rms for 1 second
(between AC line and chassis)
1-7
REV.-B
220 to 240 V version Rated voltage
Input voltage range Rated frequency Input frequency Rated current
Power consumption
Insulation resistance
Dielectric strength
220 to 240
VAC
198 to 264
VAC
50 to 60 Hz
49.5 to 60.5 Hz
1.0 A
Approx. 33 W (during a self-test
in draft mode, 10 cpi) 10 megohms, minimum (at 500
VDC between AC line and chassis).
1250
VAC rms 1 minute or 1500 VAC rms 1 second (between AC
line and chassis)
Environmental
Temperature range 5 to 35 degrees C (41 to 95 degrees F) - operating
conditions
–30 to 60 degrees C (–22 to 140 degrees F)
– in shipment container
Humidity
10 to 80 % RH - operating
5 to 85 % RH – storage
Resistance to shock 1 G, within 1 ms – operating
2 G, within 1 ms - storage
Resistance to
0.25 G, 55 Hz, max. - operating
vibration
0.50 G, 55 Hz, max. - storage
Physical specifications (80-column):
Weight 6.1 kg,
approx. (13.5 Ibs., approx.)
Dimensions 434 mm (width) X 368 mm (depth) X 151 mm (height)
17.4 in. (width) X 14.7 in. (depth) X 6 in. (height) (136-column): Weight 8.4 kg,
approx. (1 8.6 Ibs., approx.)
Dimension 609 mm (width) X 368 mm
(depth)X
151 mm (height)
24.4 in. (width X 14.7 (depth) X 6 in. (height)
1-8
REV.-A
1.2.2 Firmware Specifications
Control code
ESC/PTM level
ESC/P
2
(EPSON standard code for printers)
Printing direction
Bidirectional with logic seeking
Input data buffer
8KB (when SW 1-7 is OFF) OKB (when SW 1-7 is ON)
Character code
8 bits
Character tables
Italic character table, PC 437, PC 850, PC 860, PC 863, PC 865 (PC indicates character table for personal computer)
Fonts and pitches
Bit-map fonts
EPSON Roman
10, 12, 15, proportional
EPSON Saris
Serif
10, 12, 15, proportional
EPSON Courier
10,
12,
15
EPSON Prestige
10, 12
EPSON Script
10, 12
EPSON Script C
proportional
OCR-B
10
EPSON Orator
10 EPSON Orator-S 10 EPSON Draft
10, 12, 15
Scalable fonts
EPSON Roman
8 pt to 32 pt
EPSON Saris Serif 8 pt to 32 pt
Printing modes
Selection and mixture of the following modes are allowed, excluding 15 cpi condensed mode:
O Print quality (draft/letter quality) O Character pitch (10, 12, 15, or proportional) O Condensed O Double-width O Double-height O Emphasized O Double-strike O Italic O Underlined O
Double-underlin~d
O Overscore O Strike-through O Outline O Shadow
1-9
REV.-B NOTES: High-speed draft is valid if the printer status is as follows:
High-speed draft is selected by DIP switch.
Emphasized character mode is not selected. Condensed character mode is not selected. Draft is selected. No D/L (download) characters are sent to the printer,
The horizontal dot space of characters is not set.
No bit image is sent to the printer.
Super/subscript is not selected. (The printer switches back into normal mode to print emphasized, condensed, or download characters and bit images.)
Printing speed See tables 1-8 and 1-9. Printing columns See Table 1-8.
Character matrix See Table 1-10.
Character size See Table 1-10.
Table 1-8. Printing (Text Mode)
T
Printable Character Pitch
Printing Speed
(CPS)
Print Pitch
Condensed
Columns
(cpi)
Draft
LQ
HSD
10
0 80 (* 136)
10
210
70 225
1
137 (“233)
17.1
180 120
12
0
96 (* 164)
12
252 84
1
160 (*272)
20
210
140
15
0
120(”204)
15
315
105
1
Invalid
I
(* 136-column)
cpi:
characters per inch
Cps:
characters per second
LQ:
letter quality
HSD:
high-speed draft
1-10
Table 1-9.
REV.-B
Printing (Bit Image Mode)
(
Pins
I
Bit Image Printing Mode
I
Density
(dpi)
}
Printable Dots
I
Printing Speed
(ips)
8
Single-density
60
480 (*8 16)
21.0
8
Dual-density
120
960
(“
1632)
10.5
8
I
Double-speed, dual-density
I
120
I
960 (“1632)
I
21.0
8
Quadruple-density
240
1920 (*3264)
10.5
8
CRT graphics
80 640 (“ 1088)
10.5
8
I
CRT graphics
II
I
90
I
720 (“1224)
I
14.0
24
Single-density
60
480 (*8 16)
21.0
24
Dual-density
120 960 (“ 1632) 10.5
24 CRT graphics II
90
720 (“224) 14.0
24
Triple-density
180
1440 (“2448) 7.0
I
24
Hex-density
360
2880 (*4896) 7.0
(* 136-column)
dpi: dots per inch
ips:
inches per second
1-11
REV.-A
Table 1-10. Character Matrix and Character Size
Printing Mode
I
Face Matrix
I
HDD I Character Size I Unit
ESC
sp
High-speed draft, 10 pitch
7
x
22
90 2.0 x 3.1
Draft, 10 pitch
9 x 22 120
1.9 x 3.1
120
Draft, 12 pitch
9 x 22
120 1.9 x 3.1
120
I I
I
I
Draft, 15 pitch
7 X 16 120
1.0 X 2.3
120
Draft, 10 pitch, condensed
240
120
Draft, 12 pitch, condensed
240
120
LQ,
10 pitch
31 x 22 360 2.2 x 3.1 180
LQ,
12 pitch
27 X 22 360
1.9 x
3.1
180
LQ,
15 pitch
22 X 16
360 1.6 X 2.3
180
LQ,
10 pitch, condensed
360
180
LQ,
12 pitch, condensed
l–
I
360
I
I
180
LQ,
proportional Max. 37 X 22
360
2.6 X 3.1
180
Min. 18 X 22
360
1.0 x 3.1
LQ,
proportional, condensed
360
180
360
LQ,
proportional, super/subscript
Max. 28 X 16 360 1.8 X 2.3 180
Min. 12 X 16 360 0.7 X 2.3
LQ,
proportional, super/subscript,
I
I
360
I
I
180
condensed
360
NOTES: .
HDD is horizontal dot density in dots per inch.
Face matrix and character size indicate the size of the maximum character. This value is
dependent on paper, ribbon, etc.
Unit ESC sp (which also can be sent as unit, followed by the character string CHR(&h20)),
indicates the minimum length to be added to the right of the character specified with the
ESC
sp control code.
“-”
indicates that the character matrix is reshaped by printer firmware. Character width
becomes half of the noncondensed character width.
1-12
REV.-A
1
2 3
4
:
7 8
9 10 11 12 13 14 15 16 17 18 19
20 21
22 23 24
(Typical draft character)
L E F
T
s P
A c
E
Ascender area
!-
Descender area
I
.
R
I
G H T
s
P
A
c
E
Face width
<
9
dots
>
Character width (CW)
12 dots (10
CPI)
120
DPI
15 dots (12
CPI)
180
DPI
16 dots (15
CPI)
240
DPI
14 dots (condensed 10
CPI)
240
DPI
12 dots (condensed 12
CPI)
240
DPI
9 10 11
12
13 14 15 16 17 18 19 20 21 22 23 24
L E F
T
s
P
A
c
E
(Subscript character)
R
I G H
T
s P
A
c
E
1
2
3
4
5 6 7 8 9
10
11 12 13
14
15 16 17 18
19 20 21 22 23
24
(Typical LQ character)
L E F T
s P A
c E
Ascender area
I
Descender area
R
I
G H T
s
P A c
E
Face width
<
9
29 dots
(Typical
LQ,
excluding 15 pitch)
15 dots for
15 pitch and condensed
La
+
36 dots (10 CPI)’360
DPI
30 dots (12
CPI)
360
DPI
24 dots (15
CPI)
360
DPI
21 dots (condensed 10
CPI)
360
DPI
18 dots (condensed 12
CPI)
360
DPI
.
1
2 3 4 5 6 7 8 9
10
11 12 13 14 15 16
L E
F
T
s
P
A
c E
(Subscript character)
R
I
G H T
s P A
c E
Figure 1-5. Character Matrix
1-13
REV.-A
1.3 INTERFACE OVERVIEW
The printer has a parallel interface with the specifications described below.
1.3.1 Parallel Interface
Specifications for the 8-bit parallel interface are as follows:
Data format Synchronization Handshaking
Signal level
Adaptable connector
Data transmission timing
BUSY
ACKNLG
DATA
STROBE
8-bit parallel STROBE signal BUSY and
ACKNLG signal
TTL-compatible
57-30360 (Amphenol) or equivalent See Figure 1-6.
{
~;
o.5/is
o.5Lls
0.5/S
5/S
5/.fs
min.
min.
min.
typ.
typ. ‘
Figure 1-6. Data Transmission Timing
Table 1-11 shows the connector pin assignments and signal functions of the 8-bit parallel interface.
Table 1-11. Connector Pin Assignments and Signal Functions
Pin No.
Signal Name
Return
Pin No.
Dir. Functional Description
1
STROBE
19
IN
STROBE pulse to read the input data. Pulse width must be more than 0.5ps. Input data is latched at falling edge of this signal.
2
DATA 1
20
IN
Parallel input data to the printer.
3
DATA 2
21
IN
HIGH level means data 1.
4
DATA 3 22
IN
LOW level means data O.
5
DATA 4 23
IN
6
DATA 5 24
IN
7
DATA 6 25
IN
8
DATA 7 26
IN
9
DATA 8
27
IN
10
ACKNLG
28
OUT
This pulse indicates data has been received and the printer is ready to accept more data. Pulse width is approximately 11
Ks.
11
BUSY
29
OUT
HIGH indicates the printer cannot accept more data.
12
PE
30
OUT
HIGH indicates paper out. This signal is effective only
when the ERROR signal is LOW.
13
SLCT
OUT
Always HIGH output. (Pulled up to +5
Vthrough
a 3.3K
ohm resistor.)
1-14
Table 1-11. Connector Pin Assignments and Signal Functions (Cont.)
Pin No. Signal Name
Return
Pin No.
Dir.
Functional Description
14 AUTO FEED-XT
IN
If LOW when the printer is initialized, the printer automatically performs a line feed upon input of the CR code (Auto LF).
15
Not used.
16
GND
Ground for twisted-pair grounding.
17
Chassis
GND
Chassis ground level of printer.
18
Not used.
19
to 30
GND
Ground for twisted-pair grounding.
31
I NIT
16
IN
Pulse (width: 50ws, min., active LOW) input for printer initialization.
32
ERROR
OUT
LOW indicates an error has occurred in the printer.
33
GND
Ground for twisted-pair grounding.
34
Not used.
35
OUT
Always HIGH. (Pulled up to
+5V
through 3.3K ohm
resistor.)
36
SLCT-IN
IN
DC
l\DC3
control is disabled.
NOTES: 1. “Dir.” indicates the direction of the signal flow as viewed from the printer.
2. “Return Pin No.” denotes a twisted-pair return line.
3. The cable used must be shielded to prevent noise.
4. All interface conditions are based on TTL levels. Both the rise and fall times of all signals must be less than
0.21.Ls.
5. The AUTOFEED-XT signal can be set to LOW by DIP switch 2-4.
6. The SELECT-IN signal can be set to LOW by jumper 3.
7. Printing tests, including those of the interface circuits, can be performed without using
external equipment by setting DATA 1- DATA 8 pins to the STROBE signal.
1-15
REV.-A
1.4 CONTROL PANEL
On the control panel are: a power button (labeled OPERATE), 7 non-lock type buttons, and 19 indicators.
Figure 1-7. Control Panel
BUTTONS
(1) OPERATE Button
This button turns on the power supply to the printer.
(2) PAUSE Button This button controls printer action. Pressing the button toggles the printer between PAUSE condition (no printing, no paper feeding, and not accepting data) and RUNNING. This button is also used in conjunction with the
ALT button as a buffer clear to clear the input buffer and perform software
initialization, as if ESC
@
had been received.
(3) LINE FEED/FORM FEED Button Pressing this button performs a line feed, and holding down the button performs a form feed, irrespective of the PAUSE/RUNNING condition. This button is also used in conjunction with the
ALT
button as the micro reverse feed.
(4) LOAD/EJECT Button Pressing this button loads or ejects the paper. Refer to Section 1.6.8, Sheet Loading and Sheet Ejection.
This button is also used in conjunction with the
ALT button as the micro forward feed.
(5) TEAR-OFF/BIN
l\BiN
2 Button
In tractor-feed mode, pressing this button advances continuous paper to the tear-off position, and the TEAR-OFF indicator is lit. In friction-feed mode, pressing this button toggles between bin 1 and bin 2, and the selected BIN indicator is lit.
(6) ALT Button
This button is used only in combination with another button,
1-16
REV.-A
(7) FONT Button
Pressing this button selects a font, and pressing it continuously selects the next one, sequentially. The
FONT LED indicates the currently selected font.
(8) CONDENSED Button Pressing this button toggles the printing mode between normal and condensed, alternatively.
NOTE: Selections of the FONT and CONDENSED buttons
and the CONDENSED selection become effective
INDICATORS
(1) OPERATE (green)
are stored as defaults, so that the last FONT when the printer is initialized.
Lit when the printer’s OPERATE button is on, and AC power is supplied.
(2) PAUSE (orange)
Lit
(3) Lit
(4)
Lit
(5)
when the printer is in PAUSE-mode (no printing, no paper feeding, and not accepting data).
TEAR-OFF (orange)
when the sheet is advanced to the tear-off position.
DATA (orange)
when the printer has received data from the host. .
PAPER-OUT (red) Lit when the paper-out detector senses no paper. Refer to Section 1.6.3, Paper-out Detection and Forms Override Function.
(6) MULTI-PART (green) Lit when the adjust lever is
(7) BIN 1 (green)
Lit when bin 1 is selected.
(8) BIN 2 (green)
Lit when bin 2 is selected.
positioned at the 4th step or higher,
(9) FONT (green) - Draft, Courier, Roman, Saris Serif, Prestige, Script, Script C, Orator, Orator-S, OCR-B These indicators show the currently selected font.
(10) CONDENSED (green) Lit when condensed mode is selected.
1-17
REV.-A
1.5 DIP SWITCHES AND
This section describes the DIP switch
1.5.1
DIP Switch Settings
JUMPER SETTING
selections and jumper setting for the
LQ-570
printer.
The two DIP switch banks for the printer, located on control panel, function as shown in tables 1-12 through 1-15. (Note that the status of the DIP switches is read only at power on or upon receipt of the
INIT signal.)
Table 1-12. Settings for DIP Switch 1
(SW1)
No.
I
Description
1
2
International character set and PC selection
3
I 4 I
Charactertable selection
I
5 I Graphic print direction
I
6 I High-speed draft
7
Input buffer
8
l-inch
skiD
continuous
~aDer
ON
OFF
Factory Setting
ON
See Table 1-14.
ON ON
Graphic
Italic
OFF
Unidir.
Bidir.
OFF
Invalid Valid
OFF
Invalid Valid
OFF
ON
I
OFF
I
OFF
Table 1-13. Settings for DIP Switch 2
(SW2)
t
No.
Description
ON
OFF
Factory
Setting
1
Page length of continuous paper
See Table 1-15.
OFF
2
OFF
3
Auto tear-off
ON
OFF
OFF
4
Auto LF
ON
OFF OFF
1-18
REV.-A
Table 1-14. International Character Set Selection
1-1
1-2 1-3
Country
Pc
ON
ON ON
Us.
437
ON
ON
OFF
France
850
ON
OFF ON
Germany
860
ON
OFF
OFF
U.K.
863
OFF
ON ON
Denmark 1
865
OFF
ON
OFF
Sweden
(437)
OFF
OFF
ON
Italy
(437)
OFF
OFF OFF
Spain 1
(437)
L
When SW 1-4 is OFF,
If graphic table was selected by
ESC
t 1, PC becomes 437.
When SW 1-4 is ON, if italic table was selected by
ESC
t O, country setting becomes U.S.
Table 1-15. Page Length
2-1
2-2
Page Length
OFF
OFF
11 inches
ON OFF
12
inches
OFF
ON
8.5 inches
ON ON
70/6 inches
1.5.2 Jumper Setting
If Jumper 3 is connected to GND, the SLCT-IN signal is fixed to LOW.
1.
1-19
REV.-A
1.6 OPERATING INSTRUCTIONS
This section describes the self-test and hexadecimal dump functions and also includes the error states, printer initialization, and buzzer operation.
1.6.1 Self-Test
To run the self-test using draft mode, turn the printer on while pressing the LOAD/EJECT button. To
run the self-test using the letter quality (LQ) mode, turn the printer on while pressing the LINE
FEED\FORM FEED button. You can stop or start self-test printing by pressing the PAUSE button. When
you are satisfied with the self-test, stop the printing by pressing the PAUSE button and turn the printer off.
The firmware revision number is printed on the first line of the self-test, followed by the current DIP switch settings.
Xxxxxx Country/PC
U.S.A.
France German
y
(J.
K .
Oe nma r k Swedeil
I
ta 1 ?
S pd 1
i
I
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Figure 1-8. Self-Test Printout
1.6.2 Hexadecimal Dump Function
To put the printer in hex. dump mode, power it on while pressing both the LOAD\ EJECT and LINE
FEED\FORM FEED buttons. In hex. dump mode, the printer prints out the hexadecimal representation
of the input data, along with the corresponding ASCII characters. This function is valuable for checking the data the printer has received from the host. If input data is a nonprintable character code, a period (.) is printed in the ASCII column.
:6 40
LB 52 00 IB
20 20 54
68
69 73
bD
70 6C 65 20 6F
75
6D 70
20 70 72
69
73 20 66 65
61
0.4 20 20 20 20 20
74 01
IB
36 12 LB 50 18 70
20 69
73 20 61 6E 20 65 78
66 20 61 20 64 61 74 61 20 69
6E 74 6F 75 74 2E 20 54
74
75
72 65 20 6D 61 6B 65
69 74
20
65 61 73 79 20 66
Figure 1-9. Hexadecimal Dump
00
.@. R. . t. .6.
.P.
D.
61
This is an exa
64
mple of a data d
60
ump printout. Th
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Function
1-20
REV.-A
1.6.3
Paper-out Detection and Forms Override Function
When the paper-out detector, attached to the printer mechanism, detects a paper-end, the printer first performs a forms override. If paper loading fails, the BUSY signal goes HIGH, the PAPER OUT indicator is lit, the interface PE signal becomes HIGH, the ERROR signal becomes LOW, and the printer enters
the PAUSE condition automatically.
By ignoring the paper out, the printer can print additional lines after the paper out is detected. This function is called the forms override function. After you load new paper and press the PAUSE button, the printer recovers to the RUNNING condition, and printing restarts.
The printer enters the paper-out condition only when a paper-out is detected after the printer performs paper loading.
1.6.4 Error Conditions
If any of the following error conditions are detected, the printer automatically enters PAUSE condition.
Home position is not detected at printer mechanism initialization.
Home position is detected during printing. The PAUSE button is pressed, and the printer enters PAUSE condition. A paper-out is detected after performing paper loading operation.
If parallel interface is selected, the following interface signals are output to indicate the error and to
stop data transmission:
The BUSY signal becomes HIGH. The ERROR signal becomes LOW.
No ACKNLG pulse is sent.
1.6.5 Buzzer Operation
The buzzer sounds under the following conditions:
. A paper-out error is detected (beeps 3 times for 0.1 second, with 0.1 second intervals).
Abnormal carriage movement is detected (beeps 5 times for 0.5 second, with 0.5 second intervals).
A panel setting is accepted
1.6.6
Printer Initialization
There are three initialization
initialization.
(1) Hardware initialization
(O. 1 second beep).
methods: hardware
initialization, software initialization, and panel
This type of initialization takes place when the printer power button is turned on (and the AC power cord is plugged in) or when the INIT signal is received.
When the printer is initialized, it performs the following actions:
1-21
REV.-A
(a) Initializes printer mechanism. (b) Clears input data buffer. (c) Clears downloaded character set. (d) Clears print buffer. (e) Returns printer settings to their default values.
(2) Software initialization
Input of the
ESC @
command also initializes the printer. Printer initialization by ESC @ code does not
perform functions (a), (b), and (c) above. The settings changed by the last
SelecType
operation are
maintained.
(3) Panel initialization
This printer can be initialized by pressing the PAUSE button in combination with the ALT button. When
the printer is initialized from the front panel, functions (a) and (c) above are not performed. The settings
changed by the last
SelecType
operation are maintained.
1.6.7 Default Values
When the printer is initialized, the following default values are set:
Page position Left and right margins Line spacing Vertical tabs Horizontal tabs Family number of type style Download characters
Character spacing
Printing effects
Condensed printing
Printer condition
The current paper position becomes the top-of-form position Released
1/6 inch Cleared Every 8 characters (relative) Last font selected from the panel Kept - software initialization Cleared – hardware initialization
10 cpi
Cleared, except condensed printing
Last setting selected from the panel
RUN
1.6.8 Sheet Loading and Sheet Ejection
The release lever can disengage the pull-tractor unit drive mechanism, giving this printer improved paper-handling for functions that utilize the release lever. These functions are described below:
Automatic cut-sheet loading without the cut-sheet feeder
Move the release lever to the friction-feed position, and place the sheet along the paper guide (top or front). A few seconds later, the sheet is automatically loaded to the top-of-form position and the printer enters the RUNNING condition.
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