Epson LX-1050+ Service Manual page 70

Troubleshooting
5.2 SELF-DIAGNOSTIC FUNCTION
the selfdiagnostic function, in which the controller automatically checks the
This section describes
operating conditions of each component. If any abnormality is detected, the printer displays an
error message by beep sound. Table 5-3 lists the messages that tell you if service maintenance is
required.
Error
Paper out
Abnormal voltage
Incorrect SRAM
Incorrect RAM inside
5-2
Table 5-3. Error Codes
I
Beeps 20 times, pausing briefly after 4 beeps
Beeps 8 times, pausing after every beep
Beeps 8 times, pausing briefly after 2 beeps
CPU
LX-1050+ Service Manual
Buzzer
I
Rev. A