Epson LX-HOO User manual

LX-HOO
TECHNICAL MANUAL
—
.—
EPSON

EPSON is a registered trademark of SEIKO EPSON CORPORATION.
IBM is a registered trademark of International Business Machines Corporation.
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 subject to change without notice.
● All efforts have been made to ensure the accuracy of the contents of this manual.
However, should any errors be detected, SEIKO EPSON would greatly appreciate
being informed of them.
● The above notwithstanding, SEIKO EPSON can assume no responsibility for any
errors in this manual or their consequences.
@ Copyright 1987 by SEIKO EPSON CORPORATION
Nagano, Japan
-i-

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 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.
DANGER
1. ALWAYS DISCONNECT THE PRODUCT FROM BOTH THE POWER SOURCE AND THE
HOST COMPUTER BEFORE PERFORMING ANY MAINTENANCE OR REPAIR
PROCEDURE.
2. 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.
3. 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
1. REPAIRS ON EPSON PRODUCT SHOULD BE PERFORMED ONLY BY AN EPSON-CERTl-
FIED REPAIR TECHNICIAN.
2. 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.
3. ALWAYS VERIFY THATTHE EPSON PRODUCT HAS BEEN DISCONNECTED FROM THE
POWER SOURCE BEFORE REMOVING OR REPLACING PRINTED CIRCUIT BOARDS
AND/OR INDIVIDUAL CHIPS.
4. IN ORDER TO PROTECT SENSITIVE
/.LP CHIPS AND CIRCUITRY, USE STATIC
DISCHARGE EQUIPMENT, SUCH AS ANTI-STATIC WRIST STRAPS, WHEN ACCESS-
ING INTERNAL COMPONENTS.
5. 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 opera-
tions, maintenance, and repair of the LX-800.
The instructions and procedures included in this document are intended for
the experienced repair technician, who should pay attention 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, assem-
bly, and adjustment
Provides Epson-approved techniques for troubleshooting
Describes preventive maintenance techniques and lists lubri-
cants and adhesives required to service the equipment
● The contents of this manual are subject to change without notice.
- iv -

I
REVISION SHEET
REVISION I DATE ISSUED CHANGE DOCUMENT
1st issue
1-1, 5, 8, 12 through 18
2-2,11, 13,28,30,38 through
42
4-1, 13, 17, 19
5-1, 2, 6
6-1
A-2, 17, 18
-v-

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

REV.-A
—. —
1.1
1.2
1.3
1.4
1.5
CHAPTER 1
GENERAL DESCRIPTION
FEATURES
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
1-1
INTERFACE
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
1-3
SPECIFICATIONS
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
1-6
OPERATING CONTROLS
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
1-12
1.4.1
1.4.2
1.4.3
1.4.4
1.4.5
1.4.6
Dip Switch and Jumper Settings
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
1-12
Control Panel (and Auto Sheet Load Function) . . . . . . . . . . . . . . . . 1-14
Self Test and Hexadecimal Dump Functions . . . . . . . . . . . . . . . . . . . . 1-15
SeiecType Function . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-16
—.
Buzzer and Error Functions
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
1-17
Printer Initialization and Default Values
. . . . . . . . . . . . . . . . . . . . . . . . . . . .
1-17
MAIN COMPONENTS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-18
1.5.1
1.5.2
1.5.3
1.5.4
1.5.5
Fig. 1-1.
Fig. 1-2.
Fig. 1-3.
Fig. 1-4.
Fig. 1-5.
Fig. 1-6.
Fig. 1-7.
Fig. 1-8.
Fig. 1-9.
Fig. 1-10.
Fig. 1-11.
Printer Mechanism
Model-3A10
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
1-18
ROC Filter Unit
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
1-19
ROCX Board Unit
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
1-20
LCPNL Board Unit
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
1-20
Housing
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
1-21
LIST OF FIGURES
Exterior View of
Exterior View of
LX-800
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
1-1
LX-800 with Tractor Unit. . . . . . . . . . . . . . . . . . . . . . . 1-2
Data Transmission Timing of 8-Bit Parallel Interface.... 1-3
57-30360 36-Pin Connector
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
1-3
Printhead Pin Configuration
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-6
Printable Area for Cut Sheet Paper
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-9
Printable Area for Roll Paper
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
1-9
Printable Area for Fan Fold Paper
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-1o
Control Panel
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
1-14
SelecType Flow Chart
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
1-16
Mode13Al O Printer Mechanism
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-18
l-i

REV.-A
Fig. 1-12. ROC Filter Unit (120V Version)
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
1-19
Fig. 1-13. ROC Filter Unit
(220V/240V Versions)
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
1-20
Fig. 1-14. ROCX Board Unit
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
1-20
Fig. 1-15. LCPNL Board Unit
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
1-20
Fig. 1-16. Housing
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
1-21
LIST OF TABLES
Table 1-1. LX-800 Options
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
1-2
Table 1-2. Connector Pin Assignments and Signal Functions . . . . . . . . 1-4
Table 1-3. Printer Select/Deselect (DC1/DC3) Control . . . . . . . . . . . . . . . . . . . . . 1-5
Table 1-4. Printer Speed, Character Size, and Column Width . . . . . . . . 1-7
Table 1-5. Type of Paper
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
1-8
Table 1-6. DIP Switch Settings
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
1-12
Table 1-7. International Character Set
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
1-13
Table 1-8. DIP Switches Factory Settings
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
1-13
Table 1-9. Jumper Setting
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
1-13
Iii

REV.-B
1.1 FEATURES
The LX-800 is a multifunctional and high speed serial dot impact printer with a compact body and the
low price.
Features include:
●
●
●
●
●
●
●
●
●
●
180 cps maximum speed (draft-elite), 150 cps (draft-pica)
Upward compatibility with the LX-86
Built in two
NLQ fonts (Roman and Saris-serif)
Direct selection of NLQ/Draft modes, and easy selection of 4
typestyle modes with SelecType controls
Built in IBM graphics characters
Super/Subscript, Italics, and Elite modes can be supported in
NLQ
Automatic sheet loading function
A
3K-byte input buffer for improved throughput from the host computer
Pull tractor feeding
Optional interface for the EPSON #81 XX series
Tw=models of the LX-800 are manufactured. The model for t~e U.S and Australia uses printer cover
A and the model for all countries except the U.S. and Australia uses printer cover B.
Figures 1-1 and 1-2 show the external view of the LX-800. Table 1-1 lists the options.
(Printer cover A)
Fig. 1-1. Exterior
(Printer cover B)
View of LX-800
1-1

REV.-A
(Printer Cover A)
Fig. 1-2. Exterior View
of
(Printer Cover B)
LX-800 with Tractor Unit
Table 1-1. LX-800 Options
I Option No. I
Description
#83 10
#81 33
#8 143
#8 145
#81 48
#8 165
Roll Paper Holder
APPLE II Intelligent Interface
New Serial Interface
RS-232C/Current Loop Type 2 InterFace
Intelligent Serial Interface
Intelligent IEEE-488 Interface
1-2

REV.-A
1.2 INTERFACE
The LX-800 has a 8-bit parallel interface as a standard. The specifications for the 8-bit parallel interface
are as follows:
Data Format:
Synchronization:
Hand Shaking:
Logic Level:
Data transmission
Connector:
BUSY
ACKNLG
OATA
STROBE
8-bit parallel
By STROBE pulse
By both
ACKNLG and BUSY, or either of them
ITL (LS type) compatible
timing:
See Figure 1-3.
57-30360 (AMPHENOL) or equivalent (See Figure 1-4.)
0.5JAS
1=
0.5JAS O..sus
min. min. min.
NOTE: Transmission time (rising and falling time)
“w
Fig. 1-3. Data Transmission Timing
of every input signal must be less than 0.2Ks.
for 8-Bit Parallel Interface
1. 19. GNO ( Pair with 1.)
2.
20. GNO ( Pair w;tn2.)
3.
Z 1. GNO ( Pair w;th3.)
4.
22. GNO ( Pair wnh4.)
5. 23.
GNO ( Pair w;tn5.)
6.24. GNO ( Pair w;th6.)
7. 25.
GNO ( Pair witn7.)
e. 26. GNO ( Pair w;th S.)
9.27. GNO ( Pair
w;tn9.)
10 2S. GNO ( Pair w:th 10.)
11 29. GND ( Pair with 11. )
12 30. GNO ( Pair witn 12.)
1331.
m
14 32. m
15 33. GNO
16 34. NC
17 35.
+5V
18 36.
m
Fig.1-4. 57-30360 36-Pin Connector
1-3

REV.-A
Table 1-2 shows the connector pin assignments and signal functions of the 8-bit parallel interface.
Table 1-2. Connector Pin Assignments and Signal Functions
~in 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 0.51Js. Input data is latched after
falling edge of this signal.
2
DATA 1
20
In Parallel input data to the printer.
3
DATA2
21
In “HIGH” level means data “ 1“.
4
DATA3 22
In “LOW” level means data “O”.
5
DATA4
23
In
6
DATA5
24
In
7
DATA6 25
In
8DATA7
26
In
9DATA8
27
In
10 ACKNLG
28
out
This pulse indicates data are received and the
printer is ready to accept next data.
Pulse width is approx. 12
KS.
11
BUSY
29
out
HIGH indicates printer can not accept next data.
12
PE 30 outHIGH indicates paper-out. This signal is effective
only when ERROR signal is “LOW”.
13
SLCT —
outAlways “HIGH” output. (Pulled up to
+5V through
3.3 K ohms register.)
14 AUTOFEED-XT
—
In If the signal is “LOW” when the printer is initialized,
a line feed is automatically performed by input of
“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.
9 to 30 GND
— —
Ground for twisted-pair grounding.
31 I NIT
16
In Pulse (width: 50MS min., active “LOW”) input for
printer initialization.
32
ERROR
—
out
LOW indicates that some 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 a
3.3k-ohm register.)
36
SLCT-IN
—
In If the signal is “LOW” when printer is initialized, the
DC l/DC3 control is disabled.
1-4

REV.-B
NOTES 1. “Return” denotes a twisted pair return line connected to signal ground. When interfacing
the printer to the host, use twisted pairs for each signal. Shield the twisted pairs, and connect
the shield to GND in order to reduce interface.
2. All interface conditions are based on TTL levels. Both the rise and fall times of all signals
must be less than 0.2Ks.
3. Refer to the Parallel Interface Timing Chart for the timing of the signals.
4. Data transfer protocol must not ignore the
ACKNLG or BUSY signal. (Data can be transferred
either after recognizing the
ACKNLG signal or when the BUSY signal is LOW.)
5. The AUTO FEED XT and
SLCT IN signals are valid when they are not fixed to LOW level by
the DIP switch or jumper.
6. Printing tests, including those of the interface circuits, can be performed without using
external equipment: set interface connector data lines 1-8 to the desired code (a floating
signal will be a logical 1, and a grounded signal will be a O) connect the
ACKNLG signal
to the STROBE signal.
7. The PE signal is valid when the ERROR signal is LOW.
—
Table 1-3. Printer Select/Deselect (DC—1/DC3) Control
SLCT IN Signal State
Printer
Dcl/Dc3
at Initialization
Select/Deselect
Data entry
I
DC 1
I
Select
I Enable
HIGH DC3
Deselect Enable (Waits for a DC1. Input data is ig-
nored until a DC 1 code is received.)
DC1 Select
Enable
LOW DC3 Select
Enable
1-5

REV.-A
1.3 SPECIFICATIONS
This chapter describes the specifications of the LX-800 printer.
● General Specifications
Printing method:
Pin configuration:
Pin diameter:
Dot Pinch:
Printing direction:
Text mode:
Bit-image mode:
Dot matrix:
Character sets:
Fonts:
Printing speed:
Character size:
Column width:
Serial impact dot matrix
9 wires (see Figure 1-5)
0.29 mm
0.35 mm (1/72 inch)
#1
#2
#3
#4
#5
#6
#7
#8
#9
( )
i
( )
0.29mm
t
< >0.35mm (1 /72”)
t
( )
Fig. 1-5. Printhead Pin Configuration
Bi-directional with logic seeking
Uni-directional (left to right)
9 X 9 (Draft)
11 X 18
(NQL)
6 X 8 (Graphics)
96 ASCII characters
96 Italic characters
32 International characters
32 International Italic characters
32 Graphics characters
96 IBM Graphics characters
Draft,
NLQ-Roman, Saris-serif
See Table 1-4
See Table 1-4
See Table 1-4
480 dots/line at 60 dots/inch (Bit-image)
1-6
—.—

REV.-A
Table 1-4. Printing Speed, Character Size, and Column Width
Type Style
Charecter Size (mm) Column Width
Pitch (meximum
Font
Normal
Double
Empha- Con-
Printing Speed (CPS) Width (maximum
Chara- Characters
Width
sized densed
Height
cters/LinsCPL) /inch-CPl)
Draft 0—— — 150
2.1 3.1 80 10
(Pica)
o— — 75 4.2
3.1 40
5
—.0—75 2.1
3.1 80 10
00—37 4.2 3.1 405
— —
—
o128 1.05
3.1 132
17
0—o64
2.1 3.1 66 8.5
Draft o—— — 180
2.1 3.1 96 12
(Elite)
—o— — 904.2 3.1 48 6
—
——
o150 1.05
3.1
160 20
NLQ
o———25
Super-
sub- 0—— — 1.6
script
...—
Line spacing: 1/6” or Programmable (n/2 16“)
Line feed speed:
Approx. 95ms/line (Line feed)
(1 line = 1/6”)
Approx. 75ms/line (Form feed)
Paper feed method: Friction feed or Tractor feed
Paper path: From rear of printer
● Paper Specifications
Type of paper: See Table 1-5
1-7

REV.-B
Table 1-5. Type of Paper
Cut sheet Fan-fold paper Roll paper
Size
(Width) (Width) (Width)
182 mm to 216 mm 101 mm to 254 mm 216 &3 mm
7. 15“ to 8.5” 4“ to 10” 8.5” &0.12“
(Length)
(Diameter of roll)
Max. 305 mm Max. 127 mm
Max. 12“ Max. 5“
Thickness
0.06 mm to 0.1 mm Max. 0.25 mm 0.07 mm to 0.09 mm
Copies
1 original +2
Weight 52g/m2 to 82g/m2 (1 sheet) 52g/m2 to 64g/m2
52g/m2 to 82g/m2
(2 sheets)
35g/m2 to 58g/m2
(3 sheets)
35g/m2 to 58g/m2
for 2 sheets
+
35g/m2 to 47g/m2
for 1 sheet
Feeding method Friction feed Tractor feed Friction feed
Precautions 1. Do not use continuous 1. Release the friction 1. Use the Roll paper
form or copy paper. mechanism using the
holder.
2. Dismount the Tractor release lever. 2. Dismount the Tractor
unit.
2. Use the pressure sen- unit.
sitive paper for copy-
ing. Be sure that per-
forations have a smooth
finsh.
1-8

Printable area:
REV.-A
See Figures 1-6 through 1-8
—
0.1 2“, 3 g
or more
T
0.87”, :
or
n
1
7
1 2“”,
305 mm
L
1 .2’.
or mor
m
F
r
i
n
t
a
b
t
e
a
r
e
a
,3(
7.1 5“ - 8.50/182 mm - 216 mm
I-
Printable area
I
I
I
mm
T
ABC
T
XYZ
.—
L
ABC
J
XYZ
lm
Fig. 1-6. Printable Area for Cut Sheet Paper
0.1 2“/3 mm–
or more
0.98”/25 mm
or more
!
8.5”, 216 mm ●
Printable area
ABC
XYZ
0.1 2“, 3 mm
=more
0.1 2“/3 mm
‘or more
Fig. 1-7. Printable Area for Roll Paper
1-9

REV.-A
4“ - 10 ”/101 mm - 254 mm
L
Printable area
R
7
Printable
area
/
0.35 ”/9 mm
or more
4
0.35 ”/9 mm
or more
i
Printabh
area
o
0
0
0
0
0
0
1-
0 ABC
o
0
0
0
0
0
0
1
XYZ :
o
00
00
---------------------------
0
0
0
0
0
T
o ABC
7
XYZ :
o
0
0
0
0
0
0
0
0
0
0
0
0
0
L: 0.75”/19 mm [PaDer width is less than 9.5”/241 mm)
1.02”)26 mm
~Paper width is more than 9.5 ”/241 mm)
R:
0.75”/19 mm (Paper width is less than 9.5 ”/241 mm)
0.94”/24 mm (Paper width is more than 9.5 ”/241 mm)
Fig. 1-8. Printable Area for Fan Fold Paper
Ribbon Cartridge
Cartridge number: #8750
Color:
Black
Life:
3 million characters (14 dots/character)
Electrical Specifications
Power Voltage:
Frequency range:
Power consumption:
Insulating resistance:
Dielectric strength:
120VAC
+ 10%
220/240VAC * 10%
59.5Hz to 60.5Hz (120VAC)
49.5Hz to 60.5Hz
(220/240VAC)
Max. 70VA
More than 10M ohms
(between the AC line and chassis)
1
KVAC rms/minute or 1.2KVAC rms/second
between AC line and chassis (120V)
1.25
kVAC rms/minute or 1.5 kVAC rms/second
between AC line and chassis
(220/240V)
1-1o

REV.-A
● Environmental Specifications
Temperature:
–30”C to 60 ”C/–22°F to 149°F (Storage)
5°C to
35”C/4 1“F to 95°F (Operating)
Humidity:
5% to 85%RH, no condensation (Storage)
10% to 80%RH, no condensation (Operating)
Resistance to shock: 2G, 1 ms (Storage)
IG, 1 ms (Operating)
Resistance to vibration:
0.50G, max. 55Hz (Storage)
0.25G, max 55Hz (Operating)
● Reliability
MCBF:
MTBF:
Life of printhead:
● Safety Approvals
. safety Standards:
RFI:
● Physical
Dimensions:
(Refer to Figure A-19)
Weight:
3 million lines (Printer mechanism except the printhead)
4000 hours
200 million strokes/needle
UL 478 (U. S.A.) —
CSA 22.2 No. 0.154 (Canada)
VDE 0806 (West Germany)
FCC class B (U. S.A.)
VDE 0871 (West Germany)
91 mm (height)
377 mm (width)
399 mm (width including paper feed knob)
308 mm (depth)
5.1 kg
1-11

REV.-B
1.4 OPERATING CONTROLS
This section describes the operating controls of LX-800 printer.
1.4.1 DIP Switch and Jumper Settings
The DIP switches that users can set are SW1 and SW2. These switches are positioned at the rear center
of the printer and have the functions shown in Tables 1-6 through 1-8. (Note: the status of the DIP
switches is read only when at power on or at input of the INIT signal).
Table 1-6. DIP Switch Settings
DIP SW Function ON OFF
1-1 Typeface select Condensed Normal
1-2
ZERO font select 00
1-3 Character Table select
I
Graphic
I
Italic
1-4 I Paper-out detection
I
Valid
I
invalid
1-5 I Printing quality select
I
NLQ
I
Draft
1-6
1-7
International character set select See Table 1-7
1-8
2-1
Page length select 12“
1 1“
2-2 Cut sheet feeder mode Valid
Invalid
2-3 1“ skip over perforation Valid
Invalid
2-4 AUTO FEED XT control Fix to LOW Depends on ex-
ternal signal
1-12