Epson AP-4000 - Manual (Page 3)

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.