Epson LQ-1500 Dimensions

EPSON AMERICA, INC.
EPSON
Product Support Bulletin
Subject: 24 Pin Printer Error and Beep Codes
Date: 4/3/91
PSB No: P-0076
Page(s): 1 of 4 Originator JV
Epson printers issue beep tones when certain error conditions exist. Those beeps
can assist you in locating and repairing customer’s printers. The following error
codes are listed by product name.
NOTE: Most of the beeps issued by the printers are of .1 second duration with a .1
second pause between beeps. Where the beeps or the pauses are longer,
it has been noted in the text. The description “3 Beeps x 2” means two sets
of three beeps.
LQ-200/AP-3000
1 beep: BEL code
1 beep: A Control Panel setting is accepted.
3 beeps: Paper End detected
5 beeps: Abnormal carriage movement
On-Line light is flashing: Printhead is over heated. Carriage will stop until
the printhead cools down.
LQ-500, LQ-510, LQ-1010, LQ-850, LQ-950, LQ-1050,
L1000, AP-4000, AP-4500
1 beep:
BEL code (.5 set beep)
1 beep: A Control Panel setting is accepted
3 beeps: Paper End detected
5 beeps: Abnormal carriage movement

PSB No: P-0076
Page: 2 of 4
LQ-800, LQ-1000, L750
1 beep: BEL code
1 beep: A Control Panel setting is accepted
3 beeps: Paper End detected
5 beeps:
Abnormal carriage movement
(.5 sec. pause between beeps)
5 beeps:
LQ-860
+35V supply is abnormal
1 beep: BEL code (.5 sec. beep)
1 beep:
A Control Panel setting is accepted
3 beeps: Paper End detected
5 beeps:
Color select mechanism error
(.5 sec. beep, .5 sec between beeps)
5 beeps:
Abnormal carriage movement
(.5 sec. beep, .5 sec between beeps)
5 beeps:
CG ROM failure
(.5 sec. beep, .5 sec between beeps)
LQ-1500
1 beep:
BEL code
5 beeps: Paper End detected
5 beeps: Abnormal carriage movement
(.5 sec. pause between beeps)

PSB No: P-0076
Page: 3 of 4
LQ-2500
NOTE: Printers with LCD displays use error messages along with beeps to
inform the user of problems. The following messages will help you to
troubleshoot problems.
A blank LCD screen with the Power-on LED lit can be caused by a bent
pin on one of the PROM S or jumper J1 may be set incorrectly.
1 beep: BEL code
5 beeps: Abnormal voltage-
5 beeps: Abnormal carriage movement
(.5 sec. pause between beeps)
LQ-2500 LCD Codes:
00 Invalid ID request to CGROM
03
EEROM read/write error
10
LQ-2550
Abnormal carriage movement
1 beep: BEL code
3 beeps:
Paper End detected
5 beeps: Abnormal carriage movement (.5 sec. pause between
beeps)
5 beeps: Platen Gap adjustment error (.5 sec. pause between
beeps)
5 beeps: Case open
LQ-2550 LCD Codes:
00 (1)
The font could not be found. The printer’s internal program could not
find the target font.
(2)
Missing or damaged 7A ROM
02
Internal ROM check does not match. The versions may have been mixed.

PSB No: P-0076
Page: 4 of 4
LQ-2550 cont.
03
10
11
12
20
A ‘Verify After Write” check to the SRAM has failed. The SRAM could be bad.
This is a motor control error. Four possible areas of failure are:
a. CR home condition not detected at power up
b. Platen gap motor HP not detected correctly
c. Friction/Tractor feed switching error
d. Physical obstruction such as a jammed ribbon
Skewed paper detect error. Since the initial reading upon loading a single
sheet paper, the paper has skewed. This is a printhead wire protection
feature.
Illegal paper positioning.
(1)
If the paper is loaded using the knob instead of the LOAD/EJECT switch,
this error condition will occur. This is a printhead wire protection feature.
(2)
PE sensor may have failed or is not connected.
CPU error. An undefined op-code was detected.
NOTES:
Error codes 11 and 12 are usually caused by new operators who are
un-familiar with the machine. Both of these errors are corrected by
turning the printer off, taking out the paper and turning the printer back
on. Both features were added to ensure proper paper handling and
prevent paper jams, which can result in printhead failures.
Incorrect jumper settings on the ROMA board may cause errors 10 or
20. The correct settings are documented in the Service Manual (page
A-54, figure A-52) and on TIB LQ2550-005.
Errors 0,2, 3, 10, and 20 may require a repair, adjustment or
replacement.

EPSON
EPSON AMERICA, INC.
SERVICE
PRODUCT SUPPORT BULLETIN
PSB NO.: P-0025
DATE: 8/01/88 PAGE: 1 of 2
SUBJECT: LQ-1500 QUESTIONS AND ANSWERS
The following are common questions and their answers:
Q.
While printing the LQ-1500 will intermittently lock up, reset,
or lose characters, what is the cause of this?
A.
The most probable cause of this is the solder joint on CN2 of
the UXPS board,
resoldering the connector will usually
alleviate the intermittent problem. Only Epson Authorized
Service Centers may perform any soldering on this product.
Q.
The LQ-1500 will not go into condensed print, what is wrong?
A.
The printer is probably in LQ mode, the LQ-1500 will only
print condensed while in the draft mode.
Q. How do I get the LQ-1500 to print graphic characters, such as
those needed to use the line and box draw capabilities found
in many software packages?
A.
In order for the LQ-1500 to print graphic characters the PC
Graphics Character Emulator kit (Product Code 7493) must be
installed.
The LQ-1500 uses IBM 5152 control codes with the
Emulator kit installed, so all software packages should have
the IBM 5152 printer driver selected. This Emulation kit is
not 100% compatible.
Q. There is a bank of 8 DIP switches located in the front of the
LQ-1500, what are these for?
A.
Switches 1 through 7 are for the adjustment of print
alignment and should never be changed except by authorized
service personnel. If switch 8 is on the cut sheet feeder
mode is enabled.
Q. How can you install both the 2.0 ROM Upgrade and the PC
Graphics Character Emulator kit in the LQ-1500?
A.
The 2.0 ROM Upgrade can be installed in either the interface
board or the UXMCL board. If the PC Emulator kit is also
installed, it must go on the interface board and the 2.0 ROM
Upgrade must be installed in the UXMCL board.
EPSON AMERICA SERVICE, 23610 TEL0 AVENUE, TORRANCE, CALIF. 90505