Control panel message Description Recommended action
scanner unit. See Laser/scanner
assembly (C/Bk) on page 332 or Laser/
scanner assembly (Y/M) on page 325.
52.20 Error To continue turn off and then
on
The laser scanner experienced a rotational
error.
1. Perform the laser scanner component
tests in the Troubleshooting menu.
2. Depending on the test results, perform
one of the following steps:
◦
If the cyan or black component
tests showed a startup failure,
reconnect the connectors of the
cyan/black scanner motor (J56
and J58) and the DC controller
PCA (J106).
◦
If the yellow or magenta
component tests showed a startup
failure, reconnect the connectors
of the yellow/magenta scanner
motor (J55 and J57) and the DC
controller PCA (J106).
3. Replace the cyan and black laser-
scanner assembly or the yellow and
magenta laser-scanner assembly. See
Laser/scanner assembly (C/Bk)
on page 332 or Laser/scanner assembly
(Y/M) on page 325.
53.10.0X Unsupported DIMM An unsupported DIMM is installed. Turn the product off, and then replace the
DIMM that caused the error.
54.01 Error The environmental sensor experienced an
error.
1. Reconnect the connector of the DC
controller PCA (J108).
2. Replace the environmental sensor. See
Delivery fan, cartridge fan, and
environmental sensor on page 285.
55.00.YY DC Controller Communication
Error To continue turn off and then on
The DC controller experienced a
communication error.
1. Turn the product off and then on.
2. Perform an engine test. See
Engine-test
button on page 386.
3. Verify the connectors on the DC
controller.
4. Replace the DC controller. See
DC
controller PCA and tray on page 270.
55.01.YY DC Controller Memory Error To
continue turn off and then on
There is an error with the DC controller
memory.
1. Turn the product off and then on.
2. Perform an engine test. See
Engine-test
button on page 386..
3. Verify the connectors on the DC
controller.
4. Replace the DC controller. See
DC
controller PCA and tray on page 270.
Table 7-12 Control-panel messages (continued)
450 Chapter 7 Solve problems ENWW
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