Epson LX-1050+ User manual

EPSON TERMINAL PRINTER
LX-1050+
SERVICE MANUAL
EPSON
4003283
,’
,,

NOTICE
All rights reserved. Reproduction of any part of this manual in any form whatsoever without
SEIKO EPSON’s express written permission is forbidden.
The contents of this manual are subjects to change without notice.
All efforts have been made to ensure theaccuracyof the contents of this
manuaI. 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
-i-

PRECAUTIONS
Precautionary notations throughout the text are categorized relative to 1) personal inju~ 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.
1.
2.
3.
1.
2.
3.
4.
5.
DANGER
ALWAYS DISCONNECT THE PRODUCT FROM BOTH THE POWER SOURCE AND
PERIPHERAL DEVICES PERFORMING ANY MAINTENANCE OR REPAIR PROCE-
DURE.
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 VOLT-
AGE, 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.
- ii -

PREFACE
This manual describes functions, theory of electrical and mechanical operations, maintenance, and repair
of LX-105O+.
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. GENERAL 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. ADJUSTMENTS
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.
- iv -

REVISION SHEET
Revision Issue Date Revision Page
Rev.
A
May 18, 1994 1st
issue
-v-

TABLE OF CONTENTS
CHAPTER 1.
CHAPTER 2.
CHAPTER 3.
CHAPTER 4.
CHAPTER 5.
CHAPTER 6.
APPENDIX
GENERAL DESCRIPTION
OPERATING PRINCIPLES
DISASSEMBLY AND ASSEMBLY
ADJUSTMENTS
TROUBLESHOOTING
MAINTENANCE
-vi -

Chapter 1
General Description
Table of Contents
1.1 FEATURES
1-1
1.2 SPECIFICATIONS
1-3
1.2.1
1.2.2
1.2.3
1.2.4
1.2.5
1.2.6
1.2.7
1.2.8
1.2.9
Printing Specifications. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Paper Handling Specification. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Paper Specification . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Ink Ribbon . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Environmental Conditions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Electrical Specifications. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Reliability. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Safety Approval. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Physical Specifications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
1.3 INTERFACE OVERVIEW
1-3
1-5
1-5
1-7
1-7
1-7
1-7
1-7
1-7
1-8
1.3.1 Parallel Interface. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-8
1.3.2 Optional Interface #8143. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-9
1.4 PRINTER OPERATIONS
1-1o
1.4.1
1.4.2
1.4.3
1.4.4
1.4.5
1.4.6
1.4.7
Control Panel. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-10
SelecType Functions. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-11
MicroAdjustment. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-11
Panel Operational Power ON....... . . . . . . . . . . . . . . . . . . . . . . . . . 1-11
DIP Switch Settings. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-12
Buzzer Operation. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-14
EEPROM Reset. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-14
1.5 MAIN COMPONENTS
1-15
1.5.1 TAMA Main Control Board. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-15
1.5.2 TAa Filter Unit... . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-16
1.5.3 Printer Mechanism (M-3D60). . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-16
List of Figures
Figure 1-1. Exterior View of the LX-105O+. . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-1
Figure l-2. Pin Configuration. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-2
Figure 1-3. Printable Area - Cut Sheet . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-5
Figure l-4. PrintableArea -Continuous Paper. . . . . . . . . . . . . . . . . . . . . . . . . 1-6
Figure l-5. Adjust Lever Position. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-6
Figure l-6. Data Transmission Timing . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-8
Figure l-7. Control Panel. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-10
Figure l-8. TAMA Board Component Layout . . . . . . . . . . . . . . . . . . . . . . . . . 1-15
Figure 1-9. TAa Filter Unit. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-16
Figure 1-11. Printer Mechanism (M-3D60) . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-16

List of Tables
Table 1-1. Options for LX-105O+ . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-1
Table 1-2. Print Speed and Printable Columns . . . . . . . . . . . . . . . . . . . . . . . . .
l-s
Table l-3. CharacterTables. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . I-A
Table
Table
Table
Table
Table
Table
Table
-4. Adjust Lever Settings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-6
-5. Electrical Specifications. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-7
-6. Connector PinAssignments and Signal Functions. . . . . . . . . . . . . . 1-8
-7. Settings for DIP Switch . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-12
-8. International Character Set Selection . . . . . . . . . . . . . . . . . . . . . . . 1-12
-9. Character Table Selection. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
1-13
-lO. Page Length Selection . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-13

LX-105O+ Service Manual General Description
1.1 FEATURES
The LX-105O+ is a small, light-weight, low-cost, advanced paper handling printer. Its main features
are:
c1
Q
Ci
c1
c1
The LX-105O+ has four
Standard version:
India version:
Russian version:
Latin version:
South Europe version:
versions. Different parts are Program ROM version only.
ROM version SOxxxx
ROM version Slxxxx
ROM version S2
XXXX
ROM version S3xxxx
ROM version S4xxxx
Command compatible with following printers.
Standard, Latin, and South Europe version: with LX-105O
Russian and India version:
with FX-1OOO
Printing speeds:
200 cps (draft 10 cpi)
240 cps (draft 12 cpi)
40 cps (NLQ 10 cpi)
48 cps (NLQ 12 cpi)
PC table support as follows.
Standard version:
Italic, PC437, PC850, PC860, PC863, PC865
India version:
Italic, PC437
Russian version:
Italic, PC437, PC866, PC855, Bulgaria
Latin version:
Italic, PC437, PC852, MAZOVIA, codeMJK
South Europe version:
Italic, PC437, PC857, 1S0 Latin IT, PC437 Greek, PC869, 1S0 8859-7
Two built-in
NLQ (Near Letter Quality) fonts (Roman and Saris Serif)
Input buffer size is as follows.
Standard, Latin, and South Europe version: 4Kbytes
Russian and India version: IK bytes
Optional EPSON TYPE-A interface
L1
Figure 1-1 shows the an exterior view of the LX-105O+.
edge guides
‘aperguideSp.per-re,e.e
/
control panel
lever
vaver-tension unit
P
P
AC inlet’/
power switch
Figure 1-1. Exterior View of the LX-105O+
Rev. A
1-1

General Description
LX-105O+ Service Manual
Table 1-1 lists the optional units available for the LX-1050+.
Table 1-1. Options for LX-105O+
Cat. No. Description
8143 New Serial Interface Board
C82302*/C82304* 32KB Serial Interface
C82303* 32KB Parallel Interface
8165 IEEE-488 Interface Board
C80624* Single Bin Cut Sheet Feeder
i C80014*
[ PullTractorUnit
8755
Ribbon Cartridge
1-2
Rev. A

LX-105O+ Service Manual General Description
1.2 SPECIFICATIONS
This section provides detailed statistics for this printer.
1.2.1 Printing Specification
Printing Method: Serial, impact, dot matrix
Pin Configuration: 9 wires (diameter 0.29rnm)
#1
#2
#3
#4
#5
#8
#7
#8
#9
b
0.29
mm
&--=-
0.35 mm(l/72”)
Figure 1-2.
I
Pin Configuration
Print direction:
Bi-directional printing with logical seeking (Text mode)
Uni-directional (left to right) printing (Bit image mode)
Print speed: See Table 1-2.
Printable columns See Table 1-2.
Table 1-2. Print Speed and Printable Columns
Type of Letters Printable Columns
Print Speed
Pica (10 cpi)
136 200 Cps
Elite (12 cpi)
163 240 CpS
Double-width pica
68 100 Cps
Emphasized pica
136 100 Cps
Double-width emphasized pica 68
50 Cps
Condensed pica (17 cpi)
233 171 Cps
Double-width condensed pica (17 cpi)
115 86 Cps
Double-width elite
81 120 Cps
Condensed elite (20 cpi)
272 200 Cps
NLQ pica (1 O cpi)
136 40 Cps
NLQ elite (12 cpi) 163
48 CpS
Rev. A1-3

General Description
LX-105O+ Service Manual
lot matrix format:
9 X 9 Text mode (Draft)
18X 20 Text mode (NLQ
Ytaracter sets:
~haracter tables:
13 international character sets
See Table 1-3.
Table 1-3. Character Tables
SW)ck[d India l?~su~ln Latin South
Character Table
Model Model
E$;mg~
ITALIC
o0 0 0 0
PC437 (US/ Standard Europe)
o0000
PC850 (Multilingual)
ox x xx
PC860 (Portuguese)
oxxxx
PC863 (Canadian-French)
oxxxx
PC865 (Nordic)
oxx x x
PC866 (Russian) x x oxx
PC855 (Cyrillic) x x oxx
PC852 (East Europe) x x x ox
PC857 (Turkish) x x x x o
PC437 Greek x x x x o
PC869 (Greek) x x x x o
Bulgaria xxoxx
MAZOVIA (Poland) x x xox
Code MJK (CSFR)
xxxox
ISO Latin IT (Turkish) xxx x o
ISO 8859-7 (LatitiGreek) x x x x o
Font:
Draft, NLQ Roman, NLQ Saris Serif
Control code:
Esc/P-81
Input buffer:
Standard, Latin, and South Europe model compatible with LX-105O
India and Russian model compatible with FX-1OOO (except IBM
mode)
Standard, Latin, and South Europe model: 4K bytes
India and Russian model: IK bytes
1-4
Rev. A

LX-105O+ Service Manual
General Description
1.2.2 Paper Handling Specification
Line spacing:
1/6 inch or 1/8 inch, or progr ammable in units of 1/216 inch
Line feed speed: Approximately 95 ms (1/6 inch line feed)
Approximately 75 ms (1/6 inch in page feed)
Paper feed method: Friction feed
Tractor feed (push tractor: standard, pull tractor: optional)
Paper insertion: Rear
1.2.3 Paper
Useable paper:
<Cut sheet>
Specification
<Continuous paper>
<Envelope>
<Label>
Printing Area:
3
mm min.
I
22 mm min.
Note 1
I
22 mm min.
Note 2
Width: 182 to 364 mm (4 to 14.3 inch)
Length: 182 to 364 mm (4 to 14.3 inch)
Thickness: 0.065 to 0.14 mm (0.0025 to 0.055 inch)
Weight: 45 to 78 Kg (14 to 24 lb)
Width: 101 to 406.4 mm (4 to 16 inch)
Copies: 3 sheets (1 original 2 copies)
Total thickness: 0.065 to 0.25 mm (0.0025 to 0.010 inch)
Weight: 45 to 70 Kg (14 to 22 lb)
34 to 50 Kg (12 to 15 lb)-- copy paper
Size: No. 6 (166X 92 mm), No.1O (240X 104 mm)
Total thickness: 0.16 to 0.52 mm (0.0063 to 0.0197 inch)
Weight: 39 to 78 Kg (12 to 24 lb)
Size: 63.5 X23.8 mm (2.5 inch X 15/16 inch)
Cut sheet
-#
—
Printable area
t--i
—
3 mm min.
Figure 1-3. Printable Area - Cut Sheet
Notes:
1. In the area from 8.5 mm to22mm from the top ofpapec itisprintable butpaper-feed
is not assured.
2. In the area from 13.5 mm to 22mm from the bottom of the paper, itisptintable but
paper-feed is not assured.
Rev. A
1-s

General Description
LX-105O+ Service Manual
13 mm min.
Continuous paper
I 345.4 mm max.
➤
o
0
0
0
I
Printable area
4---D
o
0
0
0
0
.————————————
c1
0
0
0
n
u
0
0
0
13 mm min.
Adjust lever settings
Figure 1-4. Printable Area - Continuous Paper
The adjust lever must be set to the proper position for the paper
thickness.
Table 1-4. Adjust Lever Settings
I
Lever position
I
Paper Thickness
2nd step 0.06 to 0.18 mm
I
I
3rd step
I
0.19 to 0.25 mm
2’nd position
4’th position
\@
Figure 1-5. Adjust Lever Position
s?
1-6
Rev. A

LX-105O+ Service Manual
General Description
1.2.4 Ink Ribbon
Type: #8755 Ribbon Cartridge
Color: Black
Reliability: 3 million characters at 14 dots/character
1.2.5 Environmental Conditions
Temperature:
-30 to60“C - Storage
5to35“C - Operation
Humidity:
5 to 85 YO RH (no condensation) - Storage
10to801%0 RH (no condensation) - Operation
Resistance to shock: 2 G, 1 ms - Storage
1 G, 1 ms - Operation
Resistance to vibration: 0.50 G (55 Hz max.) - Storage
0.25 G (55 Hz max.) - Operation
1.2.6 Electrical Specifications
Table 1-5. Electrical Specifications
I
Item
Rated voltage
Input voltage range
Rated frequency range
Input frequency range
Power consumption
Insulation resistance
Dielectric strength
120V Version
I
220- 240V Version
120 V AC
I
220- 240V AC
103.5 to 132V
198 to 264V
50 to 60 Hz 50 to 60 Hz
49.5 to 60.5 Hz 49.5 to 60.5 Hz
Approx. 28W
I
Approx. 28W
(Self test in draft 10
cpi)
(Self test in draft 10 cpi)
1
10 M(2, min.
10 MQ, min.
(between AC line and chassis)
(between AC line and chassis)
AC 1000 V rms 1 minute
I
AC 1250 V rms 1 minute
or AC 1200 V rms 1 second or AC 1500 V
rms 1 second
1.2.7 Reliability
MCBF:
MTBF:
Life of Printhead:
3 million lines (except printhead)
6000 POH
200 million strokes/wire
1.2.8 Safety Approval
Safety Standards:
UL4785th(U.S. version)
CSA22.2 #220. (U.S. version)
VDE 0806 (TIN) (European version)
RFI:
VfR.243 (VDE 0878 Part 3, Part 30)
E~550~ (CISPR P~b.22) ~lass B”
1.2.9 Physical Specifications
Dimensions 619.3 mm (Width)
excluding knobs
Weight 8.80 Kg
x 339 mm (Depth) x 141 mm(Height),
Rev. A

General Description
LX-105O+ Service Manual
1.3 INTERFACE OVERVIEW
Centronics parallel interface
Optional Type A interface
Parallel InterFace
The LX-105O+ is equipped with the following external interfaces;
■
■
1.3.1
Data Format 8-bit parallel
Synchronization
By STROBE pulse
Handshaking
By BUSY and ACKNLG signal
Signal Level
Ill-compatible
Adaptable Connector
57-30360 (arnphanol) or equivalent
Table 1-6 shows the
comector pin assignments and signal functions of the parallel interface.
BUSY
$1
/
ACKNLG
\
DATA 7p.a.
approx. 5ps. approx.
STROBE
5ps. min.
5w. min.
5ps. min.
Figure 1-6. Data Transmission Timing
Table 1-6. Connector Pin Assignments and Signal Functions
Pin No.
Signal Name
1/0
Description
The STROBE pulse is used to read data from the host
1
STROBE
I
computer. The pulse width must be 0.5p.s or more.
Normally, it is HIGH, and data is latched with rising ~i
edge of this signal.
DATA 1-8 are parallel data bits. When one of these
signals is HIGH, the data bits is 1; when LOW, the data
2-9
DATA 1-8
I
bits is O. The most significant bit ( MSB) is data 8. The
signal state must be maintained for
0.5ps on either side
of STROBE signal’s active edge.
ACKNLG is an acknowledge pulse with a width of
10 ACKNLG
o
approximately 10P.s. This signal goes LOW upon the
completion of data reception, to indicates that the printer
is ready to receive further data.
The BUSY signal informs the host computer of the
11
BUSY
o
printer’s status. When this signal is HIGH, the printer
cannot accept further data.
1-8
Rev. A

LX-105O+ Sewice Manual General Description
—. . ..
-. . — . . .- . .
Table 1-6. Connector Pin Assignments and Signal Functions (Cont.)
Pin No.
Signal Name 1/0 Description
This signal indicates whether paper is available in the
12 PE
o printer or not. A HIGH level indicates a no paper
condition.
13
SLCT o
pulled up to +5V though 3.3KQ resistor in the print,er. ,
If this signal is set to LOW, the printer automatically
14
AUTO FEED XT
1
performs one line feed upon receipt of a CR (carriage
return) code.
15 NC
Not USSd.
16
GND Signal ground
17 CHASSIS GND
-
Chassis ground.
18 NC .
Not USSd.
19-30
GND Twisted-pair return signal ground.
31
INIT I
If this signal goes LOW, the printer is initialized. The
pulse width of this signal must be 50p.s or more.
This signal goes LOW if the printer:
32 ERROR o
- has a fatal error.
- runs out of paper.
- off line.
33
GND Signal ground.
34
NC Not Used
35 +5V Pulled up to +5 V through 3.3
KQ resistor in the printer.
36
SLCT IN I
The DC1/DC3 code is only valid when this signal is
HIGH.
Notes:
A// interface conditions are based on 7ZL /eve/s. Both the rise andfa// times of all signals
must be
/ess than 0.2 p.s.
The AUTO FEED-XT signal can be set LOW by DIP sw”tch 2-4.
The SELECT IN signal can be set LOW by jumper 1.
1.3.2 Optional Interface #8143
The LX-105O+ can use the non-intelligent serial interface board #8143.
Tyep: RS-232C or current loop
Synchronization: Asynchronous start-stop system
Start bit: 1 bit
Stop bit: 1 bit or more
Data length: 7 or 8 bits
Parity:
Odd, Even or none
X-ON/X-OFF or DTR control
75,110,134.5,150,200, 300,600,1200,1800,2400, 4800, and 9600
Protocol:
Transfer speed:
Rev. A1-0

General Description LX-105O+ Service Manual
1.4 PRINTER OPERATIONS
This section describes the basic operations of the printer.
1.4.1 Control Panel
The control panel of this printer contains four non-lock type push buttons and four LED indicators
for easy
ope;ation of the various printer function.
[Buttons]
D POWER
D READY
0 ON LINE
m PAPER
OUT
OFF LINE
NLQ
ROMAN
JJ
SANS SERIF J J J
II
FORM FEED ~
I I
CON- ON J
DENSED OFf= J J
LOAD/EJECT
II
LINE FEED
ON LINE:
FORM FEED:
LINE FEED:
LOAD/EJECT:
[Indicators]
POWER:
READY:
PAPER OUT:
ON LINE:
Figure 1-7. Control Panel
Switches printer status between on line and offline.
When the printer is off line, press this button to eject a single sheet of paper
or to advance continuous paper to the top of the next page.
When the printer is off line, press this button to advance the paper one line,
or hold it down to advance the paper continuously.
This button is used to feed the paper to the loading position, or to eject paper
that is already loaded. Paper is ejected forward if the paper-release lever is
set to the single-sheet position, or is ejected backward (removed from the
paper path) if the release lever is set to the continuous paper position.
On when the power switch is on and power is supplied.
On when the printer is ready to accept input data. Flickers while data is
printed.
On when the printer is out of paper or when continuous paper ia in a
standby position. The printer also beeps when it is out of paper.
On when the printer is on line and ready to accept data from the computer.
When this indicator is blinking, the micro-adjustment feature can be used.
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LX-105O+ Service Manual General Description
1.4.2 SelecType Functions
SelecType allows the user to choose fonts and the printing mode easily. This function provides for
selection of Draft, Roman, or Saris Serif fonts and selection of normal printing or condensed
printing modes. SelecType is effective only when the printer is ON LINE and not printing.
To select Roman or Saris Serif, press the NLQ button. A buzzer sounds when the NLQ button is
pressed. When it sounds twice, the Roman font is selected. When it sounds three times, the Saris
Serif font is selected.
To select the Draft font, press the DRAFT button. The buzzer will sound once, indicating that the
DRAFT font is selected.
To set for condensed printing when the printer is in the print mode, press the CONDENSED button
once (the buzzer will sound once), and the printer will enter the condensed print mode.
To cancel condensed printing, press the CONDENSED button again. After you press the button,
the buzzer sounds twice to tell you that condensed printing is canceled.
1.4.3 Micro Adjustment
By pressing the FORM FEED or LINE FEED buttons immediately after loading paper or when
using the tear-off feature, you can make tine adjustment to the loading and tear-off positions.
1.4.4 Panel Operation at Power ON
The following functions can be activated at power on by holding down the specified button on the
control panel.
Self-test mode:
To begin printing the self-test in the Draft mode, turn the printer ON while
pressing the LINE-FEED button. To begin printing the self-test using the
NLQ mode (Near Letter Quality), press FORM FEED and hold it down, then
turn the printer power ON.
Self-test printing can be stopped or started by pressing ON-LINE (ON-LINE
indicator is not lit). To finish the self-test, stop the printing by pressing the
ON-LINE switch then turn OFF the printer power.
The firmware revision number is printed as the first line of the self-test, and
subsequently, current DIP switch settings are printed.
Hex Dump mode:
The printer enters the HEX-DUMP mode when it is powered on while the
LINE-FEED and FORM-FEED buttons are pressed down.
In the HEX-DUMP mode, the hexadecimal representation of the input data is
printed out, along with corresponding ASCII characters. This function is
valuable for checking the data the printer has received from the host. If input
data is a control code rather than a character code, a period (.) is printed in
the ASCII column.
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General Description
L.X-1050+ Service Manual
1.4.5 DIP Switch Settings
The two DIP switches are located on the side of the printer and function as shown in Tables 1-7
throum 1-10. Note that the status of the DIP switches is read only at power on or upon receipt of
the INIT signal.
Table 1-7. Settings for DIP Switch
III
I
SW No. Description
ON
OFF
Faoto~
Settings
1-1
Character Pitch 12
cpi
10 cpi
OFF
1-2 Shape of Zero
0
0
OFF
1
1 I
1-3
1-4
Page length See Table 1-10.
OFF
OFF
1-5 I Tableselection I Graphics
I Italics
I OFF
1-6 ON
1-7 Character table selection
See Table 1-8 or 1-9.
ON
1-8 ON
2-1
Short tear-off Invalid Valid
I
OFF
2-2 Cut sheet feeder control Valid
Invalid
OFF
I
I I I
2-3
Skip over perforation 1 inch None
OFF
1 I 1
2-4
AUTO FEED XT signal internally
Fixd t. Low
Depends on
fixed or not external signal
OFF
Table 1-8. International Character Set Selection (DIP SW 1-5: OFF)
Sw 1-6 Sw 1-7 Sw 1-8 Country Sw
1+ Sw 1-7 Sw 1-8 Country
ON ON ON
U.S.A OFF ON ON
Denmark
ON ON
OFF France OFF
ON
OFF Sweden
ON
I
OFF ON Germany
II
OFF
I
OFF I ON
Italy
ON I OFF I OFF I U.K.
II OFF I OFF I OFF I Spain
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