Control-panel message Status alert Description Recommended action
50.9 Fuser Error
Turn off then on
Abnormally high subthermistor
fuser temperature error.
1. Reinstall the fuser. Check
the connector (J704)
between the fuser and the
product. If it is damaged,
replace the fuser drive unit
or fuser.
2. Reconnect the connector
(J131A) on the DC
controller PCA.
3. Replace the fuser.
51.XX Error
Turn off then on
The product has experienced an
internal error with a laser
scanner.
●
51.20 = black
●
51.21 = cyan
●
51.22 = magenta
●
51.23 = yellow
1. Turn the product off and
then on.
2. Verify that the connectors
J61 and J62 on the DC
controller PCA are correctly
seated. Also verify that the
connectors on the laser
scanner are correctly
seated.
3. If the problem remains,
replace the laser scanner.
54.XX Error
Turn off then on
The product has experienced an
error with one of the print
cartridge sensors.
●
54.15 = yellow
●
54.16 = magenta
●
54.17 = cyan
●
54.18 = black
1. Open the door to the
cartridge tray and slide out
the cartridge tray.
2. Inspect the white
mechanism on the relevant
cartridge. It is located on the
right side of the cartridge.
3. Push the mechanism in and
out slowly. A black flag will
raise up as you push it. If it
does not move smoothly,
push repeatedly to try to
clear any potential
obstruction.
4. Push in the cartridge tray
and close the door.
55.X Error
Turn off then on
55.0601 = DC controller NVRAM
data error
55.0602 = DC controller NVRAM
access error
55.1 = DC controller memory
error
55.3 = Engine communication
error
55.4 = Engine timeout error
1. Turn the product off and on.
If the problem remains,
replace the DC controller
PCA.
ENWW Tools for troubleshooting 221
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