Control panel message Description Recommended action
might have to remove the main cooling
fan to see this connection.
4. If the message persists, replace the fan
(see
Left-side fan on page 148).
57.04 ERROR To continue turn off then on A main cooling fan (FM1) error has occurred.
Fan operation is verified during device power-
up. Fan operation occurs only during power-
up or during a print job.
1. Turn the device off and then on.
2. Verify that nothing is hindering or
blocking the fan.
3. Verify that the fan is connected to
connector J509 on the ECU PCA.
4. If the message persists, replace the fan
(see
Right-side fan on page 128).
59.50 ERROR To continue turn off then on A main motor (M1) error has occurred. Motor
operation is verified during device power-up.
1. Turn the device off, and then turn the
device on.
2. Verify that nothing is hindering the main
motor. If necessary, remove all paper
trays and the print cartridge, and then
turn on the device and listen for motor
operation.
3. Verify that the main motor is connected
to connector J407 on the ECU. You
might have to remove the main cooling
fan to see this connection.
4. If the message persists, replace the
motor (see
Main motor on page 159).
62 NO SYSTEM To continue turn off then
on
A problem exists with the device firmware. 1. Turn the device off, and then turn the
device on.
2. Go to
www.hp.com/support/
LJM3027mfp or www.hp.com/support/
LJM3035mfp to check the latest
firmware image version. If the latest
firmware image version is newer than
the one installed on the device, upgrade
the device, if possible.
3. If the message persists, replace the
formatter (see
Formatter on page 116).
64 ERROR To continue turn off then on A scan buffer error occurred. 1. Turn the device off, and then turn the
device on.
2. Go to
www.hp.com/support/
LJM3027mfp or www.hp.com/support/
LJM3035mfp to check the latest
firmware image version. If the latest
firmware image version is newer than
the one installed on the device, upgrade
the device, if possible.
3. If the message persists, replace the
formatter (see
Formatter on page 116).
Table 6-1 Control-panel messages (continued)
208 Chapter 6 Troubleshooting ENWW
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