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Front panel LED service mode error codes
Detected error conditions in the print engine are displayed on the front panel as
LED patterns. The following table lists the service mode error codes which are
displayed while the printer is in service mode. (Service mode is explained in
Chapter 9, "Checks and Adjustments.") These codes are more specific than the
error codes displayed during normal operation (see the previous topic "Rear
panel"). If an error occurs during normal operation, pressing the rear panel
TEST button causes the more specific service mode error code to be displayed
on the front panel. The error codes listed below are explained in greater detail in
the Chapter 6 topic "Print engine error codes and their causes" on page 6-19.
Table 1-5 Service mode error code summary
Front panel LEDs
Hex code Error
o o o o o
o
00
o o o o o
01
o o o o
o
02
o o o
o
o
04
o o o
o
06
o o o
07
o o
o o
o
08
o o
o
o
0A
o o
o
0B
o o
o
0D
o o
o
0E
o o
0F
o
o o o
o
10
o
o o
o
12
o
o o
13
o
o
o
o
14
o
o o
o
18
o
1F
o o o o
o
20
o o o o
21
o o o
o
22
23
o o o
24
o o
o
o
o o
o
25
o o
o
26
o o
27
o
o o
o
28
o
o o
29
o
o
o
2A
o
o
2B
o means LED off
means LED on
means the POWER LED which is always on
No error.
Drum position error.
Thermal head temperature error.
Top or front cover open error.
Thermal head strobe (too long) error.
Engine control board RAM read/write error.
Engine control board ROM checksum error.
Interface error with image processor board.
Tray configuration changed.
Engine thermistor failure (open or short)
Thermal head lift error.
Thermal head thermistor failure (open or short).
Transfer roll empty.
Transfer roll jam.
No transfer roll installed.
Transfer roll encoding read failure.
Transfer roll feed timer error.
Selected media tray type unknown.
Out of tray media.
Tray not installed.
Paper eject sensor failed to turn on.
Paper-pass error / lower tray.
Paper-pass error / upper tray.
Paper-pass sensor 2 error.
Paper clamp error, media not detected in clamp.
Media size error – media too long or too short.
Paper eject sensor failed to turn off.
Paper-pass sensor 1 failed to turn off after eject.
Paper-pass sensor 2 failed to turn off after eject.
Paper clamp timer error, sensor failed to turn off.
General Information
Service Manual
1-11
1
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Troubleshooting
