Epson EPL-5500 Service Manual page 102

EPL-5500 Service Manual
5.1 OVERVIEW
The EPL-5500 has a sophisticated, built-in, self-diagnostic function that reduces the troubleshooting
time by identifying failed parts or components. This self-diagnostic test identifies the troubleshooting
problems for page printers, in which even a trivial failure can result in a serious print quality
problem.
5.2 SELF-DIAGNOSTIC FUNCTION
This section describes the self-diagnostic function in which the controller automatically checks the
operating conditions of each component. If any abnormality is detected, the printer prints an error
message on the status sheet or displays a message with the LED lights.
5.2.1 SOFT ERROR
When the printer detects an error relating to a software operation, the printer indicates it as "SOFT
ERROR" by slowly flashing the red LED light. By pressing the button on the control panel, the
printer prints the status sheet with error information. Table 5-1 lists the soft error codes.
Error Code
C0001 CPU error (reserved)
C0002 CPU error (programming command error)
C0003 CPU error (illegal instruction)
C0004 CPU error (unsupported FPU instruction)
C0007 CPU error (address misalignment)
C0009 CPU error (reserved)
C0010 CPU error (tag overflow)
C0017 to 31 CPU error (unsupported interrupt)
C0036 CPU error (unsupported coprocessor instruction)
C0128 to 254 CPU error (unimplemented instruction)
C0255
CPU error (break error)
Axxxx
Software error
Bxxxx Software error
Dxxxx Software error
Fxxxx to Zxxxx Software error
Rev. B
Table 5-1. SOFT ERROR Code List
Error Condition
Troubleshooting
5-1