Epson LQ-2550 User manual

LQ-2550
TECHNICAL MANUAL
EPSON

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 headings.
WARNINGSignals a precaution which, if ignored, could result in damage to equipment.
The precautionary measures itemized below should always be observed when performing repair/main-
tenance procedures.
1.
2.
3.
1.
2.
3.
4.
5.
DANGER
ALWAYS DISCONNECT THE PRODUCT FROM BOTH THE POWER SOURCE AND THE
HOST COMPUTER BEFORE 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.
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 PROD-
UCT 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 REMOVING OR REPLACING PRINTED CIRCUIT BOARDS
AND/OR INDIVIDUAL CHIPS.
IN ORDER TO PROTECT SENSITIVE
KP CHIPS AND CIRCUITRY, USE STATIC
DISCHARGE EQUIPMENT, SUCH AS ANTI-STATIC WRIST STRAPS, WHEN ACCESS-
ING 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.-A
PREFACE
This manual describes functions, theory of electrical and mechanical
operations, maintenance, and repair of the LQ-2550.
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 printer.
Describes the theory of printer operation.
Discusses the options
Includes a step-by-step guide for product disassembly,
assembly, and 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 -

REV.-A
REVISION TABLE
REVISION DATE ISSUED CHANGE DOCUMENT
A March 31, 1988
I
1st issue
I I
I I
I
1
I
I
1
f’!
.
.,
t
,:,
-.+
( ~DŠˆ
.%
: .,.:,
,., .,
-v-

REV.-A
TABLE OF CONTENTS
CHAPTER 1. GENERAL DESCRIPTION
CHAPTER 2. OPERATING PRINCIPLES
CHAPTER 3. OPTIONAL EQUIPMENTS
CHAPTER 4. DISASSEMBLY, ASSEMBLY, AND ADJUSTMENT
CHAPTER 5. TROUBLESHOOTING
CHAPTER 6. MAINTENANCE
APPENDIX
– vi -

REV.-A
CHAPTER 1
GENERAL DESCRIPTION
1.1
1.2
1.3
1.4
1.5
1.6
1.7
1.8
FEATURES . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
1-1
SPECIFICATIONS
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
1-3
1.2.1 Hardware Specifications
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-3
1.2.2 Firmware Specifications
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
1-1o
INTERFACE OVERVIEW . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-14
1.3.1 8-bit Parallel Interface Specifications
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
1-14
1.3.2 RS-232C Serial Interface Specifications . . . . . . . . . . . . . . . . . . . . . . . . . 1-17
SELF-TEST OPERATION
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-20
HEXADECIMAL DUMP FUNCTION
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-21
PRINTER INITIALIZATION
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
1-22
1.6.1 Hardware Initialization
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
1-22
1.6.2 Software Initialization
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-22
1.6.3 Default Values
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
1-22
ERROR CONDITIONS AND BUZZER OPERATION . . . . . . . . . . . . . . . . . . 1-23
1.7.1 Error Conditions
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
1-23
1.7.2 Buzzer Operations
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
1-23
MAIN COMPONENTS
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
1-24
1.8.1
1.8.2
1.8.3
1.8.4
1.8.5
1.8.6
Printer Mechanism . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
1-25
1.8.1.1 Overview
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
1-25
1.8.1.2 Paper Handling and Operations
. . . . . . . . . . . . . . . . . . . . . . . . . . .
1-26
ROMA Board (Main Board) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1.27
ROPS/ROPSE Board
(Power Supply Circuit Board)
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
1-28
Fan Unit
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
1-29
Housing
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
1-29
Control Panel
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
1-30
1.8.6.1 Hardware Specification
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
1-30
1.8.6.2 SeiecType Function
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
1-32
l-i

REV.-A
LIST OF FIGURES
Figure 1-1. Exterior Views of the LQ-2550
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
1-1
Figure 1-2.
Printhead Pin Configuration
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-3
Figure 1-3.
Cut Sheet Paper Printable Area
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-5
Figure 1-4. Fanfold Paper Printable Area
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-6
Figure 1-5. Label Printable Area
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
1-7
Figure 1-6. Character Matrix
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
1-12
Figure 1-7. Data .Transmission Timing for the
8-bit Parallel Interface
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
1-14
Figure 1-8.
36-pin 57-30360 Connector . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-14
Figure 1-9.
Handshaking for RS-232C Interface
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
1-17
Figure 1-10. Serial Data Transmission Timing
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
1-18
Figure 1-11. Serial Interface Connector
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
1-18
Figure 1-12. Self-Test Printing (LQ)
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
1-20
Figure 1-13. Hexadecimal Dump List
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
1-21
Figure 1-14. LQ-2550 Component Locations
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
1-24
Figure 1-15. Model-5560 Printer Mechanism
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
1-25
Figure 1-16. ROMA Board
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
1-27
Figure 1-17. ROPS/ROPSE Board
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
1-28
Figure 1-18. Fan Unit
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
1-29
Figure 1-19. Housing
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
1-29
Figure 1-20. Control Panel
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
1-30
Figure 1-21. SelecType Operational Sequence
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-33
Table 1-1.
Table 1-2.
Table 1-3.
Table 14.
Table 1-5.
Table 1-6.
Table 1-7.
Table 1-8.
Table 1-9.
Table 1-10.
—
LIST OF TABLES
Optional Units
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Optional Interface Boards
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Line Feed Speeds . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Cut Sheet Paper Specified Conditions
. . . . . . . . . . . . . . . . . . . . . . . . . .
Fanfold Paper Specified Conditions
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Ribbon Cartridge Specification . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Dimensions and Weight
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Electrical Specifications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Environmental Conditions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Printing Mode . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
1-2
1-2
14
1-5
1-6
1-8
1-8
1-6
1-9
1-11

REV.-A
Table 1-11. Character Matrix and Character Size
. . . . . . . . . . . . . . . . . . . . . . . . . . . .
1-13
Table 1-12. 8-bit Parallel l/F Connector
Pin Assignments
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
1-15
Table 1-13. Select/Deselect Control
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
1-16
Table 1-14. Serial Interface Handshaking
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
1-17
Table 1-15. RS-232C Serial Interface Connector
Pin Assignments
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
1-19
Table 1-16. Self-Test Operation
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
1-20
Table 1-17. Hexadecimal Dump Operation
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
1-21
l-iii

REV.-A
‘ 1.1 FEATURES
The LQ-2550 printer is a multifunction, 24-pin, impact dot-matrix printer. The main features Of this
printer are:
●
●
●
●
●
●
●
●
●
●
●
●
●
I
I
I
ESC/P Expanded is implemented as a standard
Upward compatibility with the LQ-2500/LQ-2500+
A maximum print speed of 400 CPS in draft mode at 12 CPI and 133 CPS in LQ mode at 12 CPI
Direct selection of font, pitch, and normal/condensed mode, and SelecType function with LCD (Liquid
Crystal Display) which makes panel settings easier
Multiple standard fonts (Roman, Saris Serif, Courier, Prestige, Script, OCR-A, and OCR-B)
Advanced paper handling:
Automatic release function
Automatic platen gap adjustment function
Micro adjustment function
Tear-off function
Automatic paper-loading/ejectin9 function
Color printing capability
Low-noise acoustics
Both 8-bit parallel and RS-232C serial interfaces
Push and (optional) pull tractor feeding ,
Printing of fanfold paper without removal of the cut sheet feeder (option)
Optional interface for the EPSON 8100 series
Optional low-priced, double-bin cut sheet feeder with envelope feeding capability
Figure 1-1 shows exterior views of the printer, Table 1-1 lists optional units that are available, and Table
1-2 lists the optional interface boards (refer to Chapter 3 for more detailed information) for the LQ-2550.
Setting for Continuous Paper Setting for Cut Sheet Paper
Figure 1-1. Exterior Views of the
LQ-2550
1-1

Table 1-1. Optional Units
No.
Name
#73 14 Pull tractor unit
#7343Double bin cut sheet feeder
#7394Scanner option kit
#7762Ribbon cartridge (black)
#7763Ribbon cattridge (color)
#7764Ribbon cartridge (film-black)
Table 1-2. Optional Interface Boards
No.
Name
#8143New serial interface
#8145RS-232C current loop interface type II
#8 148 Intelligent serial interface
#8 149 Intelligent serial interface type II
#8 149M
I
Intelligent serial interface type Ill
#8 161
I
IEEE-488 interface
#81 65
I
Intelligent IEEE-488 interface
#8 172
I
32 K-byte buffer parallel interface
#8 172M 128K-byte buffer parallel interface
I
{:’”
... ,
g:;;
.7, ...,
1-2

REV.-A
\
1.2 SPECIFICATIONS
The LQ-2550 communicates with a wide variety of host computers, with the aid of the optional Identity
Modules. However, this section describes the specifications for the printer without the Identity Module.
Specifications not affected by firmware (hardware specifications) are the same whether or not the
Identity Module is installed.
1.2.1 Hardware Specifications
Printing Method
Serial, impact dot matrix
Pin Configuration See Figure 1-2 (1 2x2 staggered, diameter: 0.2 mm).
..=
$
5
7
1’
11
13
15
17
$’-
21
23
=’
0
2
OJ
\
4
I
6
8
10
12
14
4
16
la
20
22
24
1160”
Figure 1-2. Printhead Pin Configuration
1-3

REV.-A
Feeding Method Friction feed
Tractor feed (push: standard, push-pull: optional)
NOTES: 1. When using friction feed:
● Select friction feed on the control panel.
● Do not use continuous (fanfold) paper.
● Do not use a single sheet paper shorter than 92mm or longer than 364mm
● Do not perform any reverse paper feed operations within the top 8.5 mm and bottom
22 mm of the paper.
● Do not perform reverse feed beyond 1/6” after the paper end has been detected.
● Do not use multi-part, single-sheet forms.
2. When using push-pull tractor feed:
● Select tractor feed on the control panel.
● Mount the pull tractor unit (optional).
● Do not loosen the paper between the platen and the pull sprocket.
● Precisely align the horizontal position of the pull sprocket and push tractor.
● Do not perform reverse feeding for more than 1/6”.
● Do not perform reverse feeding after the paper end has been detected.
● Multiple copy paper must be pasted together using line or dots.
● Copy paper must be carbonless multi-part paper.
Paper Loading Directions
Fanfold paper Inserted from the rear
Cut sheet paper Inserted from the top
Line Spacing 1/6”, 1/8”, or programmable in units of 1/1 80”
orl/360”
Line Feed Speed See Table 1-3.
Table 1-3. Line Feed Speeds
Feeding Method
1/6” line spacing Continuous
[ins/line] [inch/s]
=
Friction without CSF
Friction with CSF 84 4.0
Tractor
1-4

REV.-A
\ Paper Specifications
Cut sheet paper Refer to Table 1-4 and
Table 1-4. Cut Sheet Paper
Figure 1-3.
Specified Conditions
NOTES:
1.
2.
Width [mm]
I
182
-364 (7.2 - 14.3”)
Length
[mm] I 364 (14.3”) max.
Thickness [mm]
I
0.065-0.10 (0.0025 - 0.004”)
Weight [lb]
I 14-22 (52 -82 g/m2)
Quality
I Plain paper
Copies
I Not available
t
7.2-14.3”, 182 ’364 mm
0.1
2“, 3 mm.
1-
Printable area
I
or more
1
.33”, 6.5 mm
r mol
t
v
r
i
n
t
MAX. . .
1
3;
364mm I
e
a
r
e
a
0.52”,
T
ABC
T
XYZ
L
ABC
J
XYZ
3mm
-0.1 2“, 3 mm
or more
Printing is possible approx. 8.5mm (0.33”) from the top of the paper. But the paper feed
accuracy can not be assured in the area approx. 22mm (0.87”) from the top of the paper.
Printing is possible approximately 45.9mm past the point where end-of-page has been
detected. Thus, the value 13.3mm (0.52”) (lowest print position) is given for reference only.
Paper feed accuracy cannot be
bottom of the page.
Figure 1-3. Cut
assured in the area approximately 22mm(0.87”) from the
Sheet Paper Printable Area
1-5

REV.-A
.“3
f ~
,,.
. . . . .
Fanfold paper
Refer to Table 1-5 and Figure 1-4.
Table 1-5. Fanfold Paper Specified Conditions
Width [mm]
101
-406 (4.0 - 16.0”)
Copies [sheets]
6 (1 original + 5 ) over the entire temperature range
Quality Plain paper
Total Thickness [mm] 0.06-0.46 (0.0023 -0.0 18“)
Weight IIbs]
1 sheet . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12
-22 (40 -82 g/m2)
6 sheets ...................12 -15 (40 -58.2
g/m2) each sheet
Printable
area
i
0.35”, 9 mm
or more
4
0.35”, 9 mm
or more
i
Printable
area
4-16” ,
101 -4C)6mm
M
d
*~
Printable area
I
*
o
0
0
0
00
00
0
0
0
0
0
L
o ABC
d
XYZ :
o
0
0
0
0
0
-----------------------------
o
0
0
0
0
T
o ABC
T
XYZ :
o
0
0’
o
0
0
0
0
0
0
0
0
0
0
{ ;
.., ,.
*: 101 - 381 mm (4 - 15“) wide paper . . . . . . . . . . . . . . . . . . . . . 13mm or more,
406 mm ( 16“) wide paper . . . . . . . . . . . . . . . . . . . . . 26mm or more
Figure 1-4. Fanfold Paper Printable Area
1-6

REV.-A
. .
Envelopes
Size
No. 6 165 x 92 mm (6.5 x 3.63”)
No. 10241 x 105mm (9.5 x 4. 13“)
Quality Bond paper, xerographic copier paper, airmail paper
Thickness 0.16-0.52 mm (0.0063 -0.01 97”)
NOTE: Differences in thickness within printing area must be less than 0.25 mm (0.0098”).
Weight
NOTES: 1. Envelope
2. Keep the
Labels
Size
Thickness
12-24 lb (45 -91
g/m2)
printing is only available at normal temperature.
longer side of the envelope horizontal.
2. 1/2 X 15/1 6“, 4 X 15/1 6“, 4 X 1“7/16“
O.19 mm (0.0075”) max.
\
NOTE: Thickness excluding the base paper must be less than or equal to 0.12 mm (0.0047”).
NOTES: 1.
2.
3.
4.
Printable
Printing of labels is only possible at normal temperature.
Labels must be fanfold.
Labels with pressure-sensitive paper must be joined by dot or line pasting, and the total
thickness must be less than or equal to 0.3 mm (0.01 1 8“) and should be printed under
conditions between 5 to 35 ‘C and 20 to 80% RH.
Examples of labels: AVERY CONTINUOUS FORM LABELS
AVERY MINI-LINE LABELS
area
See Figure 1-5.
k
101.6 mm [ 4“ )
A
63.5mm (2 ”}2”)
<
r
23. Emm
(’5+6”)
J_
36.5mm
(176”)
Figure 1-5. Label Printable Area
1-7

REV.-A
Ribbon Cartridge See Table 1-6.
Table 1-6. Ribbon Cartridge Specification
I
[
Ribbon Model No. #7762#7764#7763
Type
Normal
Film
Multi-color
Color
Black
Black, Cyan,
Magenta, and yellow
LifeBlack: 1
[million/characters]*’
3
Cyan: 0.7
0.2 Magenta: 0.7
Yellow: 0.5
xl: LQ-selftest
Dimensions See Table 1-7 (Details are shown in Figure A-59.)
Weight See Table 1-7.
Table 1-7. Dimensions and Weight
Width [mm] Height [mm] Depth [mm] Weight [Kg]
676 198 535 20
(approx.)
NOTE: Including the paper feed knob and paper guide.
Electrical Specifications See Table 1-8.
Table 1-8. Electrical Specifications
100-120
V Version 220-240 V Version
f
I
Voltage ~ AC] 108- 132198-264
Frequency Range [Hz] 49.5 -60.5
Rating Current
“’ [A]
1.6 1.0
Insulation Resistance
[M ohm] min. 10
(between AC line and chassis)
I
I
Dielectric Strength ~ AC, rms] 12503750
(1 minute, between AC line and chassis)
c ‘
. . .
.4
f-
,,.,,
-..+,
*1: At draft-selftest printing.
1-8

REV.-A
Environmental Conditions Refer to Table 1-9.
‘. Reliability
MCBF
MTBF
Printhead life
Table 1-9. Environmental Conditions
Storage Operating
Temperature [“C] –30 - 65*5-35
1
I
Humidity [% RH] 5-8510-80
I
Resistance to shock [G]
1 (within 1 ms)
2
1
I
Safety Approvals
Safety standards
Radio frequency
Interface
(RFI)
Resistance to Vibration [G]
(55 Hz, max.) 0.50 0.25
x: With shipment container
5 million lines (excluding printhead)
(MCBF . . . Mean Cycles Between Failure)
6000
POH (duty 25%)
(POH . . . Power On Hour)
200 million strokes/wire
UL478 (U.S.A. version)
CSA22.2#154
VDE0806 (TUV) (European version)
FCC class B (U.S.A. version)
VDE0871 (self-certification)
(European version)
1-9

REV.-A
1.2.2 Firmware Specifications
Control Code
ESC/P-83 Expanded
Printing Direction
Bidirectional logic seeking
Input Data Buffer
8K-bytes
Character Code 8 bits
Character Set 96 ASCII and 13 international character sets
Family
Roman:
No. O
SansSerif: No. 1
Courier:
No. 2
Prestige:
No. 3
Script:
No. 4
OCR-B:
No. 5
OCR-A:
No. 6
Font and Character Spacing Roman: 10, 12, 15, Proportional
SansSerif:
10, 12, 15, Proportional
Courier:
10, 12, 15, Proportional
Prestige:
10, 12, 15, Proportional
Script:
10, 12, 15, Proportional
OCR-B:
10, 12, Proportional
OCR-A:
10, 12 Proportional
Draft:
10, 12, 15
Printing quality (Draft/LQ)
Character pitch (10, 12, 15
CPI or Propotiional)
Condensed
Double-width
Double-height
Emphasized
Double-strike
Italic
Underlined
Outline
Shadow
NOTE: A condensed mode for 15
CPI characters is not available.
Printing Mode
-+
f’
- ,:
Print Speed Refer to Table 1-10.
1-10

REV.-A
Table 1-10. Printing Mode
.,,
\
Printing Speed
Print Condensed Emphasized Double Character
[CPS]
Printable
Pitch Width Pitch ICPI] Columns
Draft
LQ
10 0 0010333
111 136
1 5 167 55 68
1 0 10 167
111 136
1 5 83 55 68
1 x o 17.1 285 189 233
1 8.5 142 94 116
12 0 0 0 12 400 133 163
1
6 200 67 81
1
0 12
200 133 163
1
6
100 67
81
1 x o
20 333 221 272
1 10 167
111 136
15 000 15
500 167 204
1 15 250 83 204
1 07.5 250 167 102
1
7.5 124 83 102
1 x x
Ignored
‘proportional
o x o
8.6 —94 Max. 116
20221 Min. 272
1 4.3 50Max. 58
10 111 Min. 136
1
x o17.1
189 Max. 233
40 444 Min. 544
1 8.6 —94 Max. 116
20 221 Min. 272
‘proportional
o x
o 12.8 —142 Max. 174
Superl’
30
subscript
333 Min. 408
1
6.4 —
71
Max. 87
15
167 Min. 204
1
x
o
25.7 —285 Max. 174
60 667 Min. 816
;
1 12.8 142 Max. 87 ~
4
30333 Min. 204
NOTES: 1. Max. means the value when the maximum width characters are printed.
2. Min. means the value when the minimum width characters are printed.
3. “—“ means that
LQ character set is automatically selected when proportional pitch is
specified.
\
1-11

REV.-A
character Matrix
:
3
4
5
6
7
:
10
II
12
13
14
15
16
17
18
19
20
21
22
23
24
(Normal Character)
See Figure 1-6.
Ascender Area
R
A
Ascender Area (15pi!Ch)
H
,
T
1
L
s
P
A
i) .
c
E
(a 2
Descender Area
Face Wid!h(al)
4
Character Width (CW)
(Superscript Character)
Pin Nos. 17 to 24 are not used for superscript
printing.
;
3
4
5
6
7
8
9
10
II
12
I?
14
r
;
T
s
P
A
c
E
—
R
k
H
T
s
P
A
c
E
—
(Subscript Character)
Pin Nos. 1 to 8 are not used for subscript printing.
9
10
II
12
13
14
15
16
17
18
;:
21
22
23
24
L
E
F
T
s
P
A
c
E
—
—
R
A
H
T
s
P
A
c
E
—
. . .
f:
1 ,,
--,
L
. . .
r’
... ;
Figure 1-6. Character Matrix
1-12