HP color laserjet 2550 series Manuale Di Servizio
Basic troubleshooting
Table 6-1. Basic troubleshooting
Does the printer turn on successfully?
When the printer is connected to a grounded power source, the control panel lights should
cycle one after another and the cartridge carousel should rotate.
cycle one after another and the cartridge carousel should rotate.
Cause
Solution
No power.
1.
Verify that the printer is plugged directly into
a wall outlet, and not plugged into a power
strip or a UPS.
a wall outlet, and not plugged into a power
strip or a UPS.
2.
Verify that the power cable is functional and
that the power on-off switch is on.
that the power on-off switch is on.
Control panel lights do not cycle.
Verify that the control panel cable is seated into
both the control panel and the formatter. If the
cable is connected correctly, replace the control
panel.
both the control panel and the formatter. If the
cable is connected correctly, replace the control
panel.
Is the printer ready?
The printer should function without error-indicator light messages appearing on the control
panel or error messages appearing on the Printer Status and Alerts screen.
panel or error messages appearing on the Printer Status and Alerts screen.
Cause
Solution
Control panel lights, other than the Ready light,
are on or blinking.
are on or blinking.
Consult the lists of control panel light messages
(see
(see
) to identify
and correct the error.
An error message appears in the Printer Status
and Alerts screen.
and Alerts screen.
There is a problem, but no control panel lights
are on or blinking, and no messages appear on
the Printer Status and Alerts screen.
are on or blinking, and no messages appear on
the Printer Status and Alerts screen.
Do engine tests and information pages print?
Print an engine test (see Functional checks). The engine test should print without paper-feed
problems or print-quality problems. Also print a Demo page or a configuration page (see
Troubleshooting tools).
problems or print-quality problems. Also print a Demo page or a configuration page (see
Troubleshooting tools).
Cause
Solution
The engine test is not successful.
Make sure that the formatter is connected to a
power source.
power source.
Note
The formatter must be connected to a power
source to perform an engine test.
source to perform an engine test.
ENWW
Basic troubleshooting
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