HP color laserjet 2550 series Manuale Di Servizio

If the printer is not responding properly, complete the steps in the following checklist, in
order. If the printer does not pass a step, follow the corresponding troubleshooting
suggestions. If a step resolves the problem, you can stop without performing the rest of the
steps on the checklist.

1. Make sure that the printer Ready light is on. If no lights are on, complete the following

steps:

a. Check the power cable connections.

b. Make sure that the power switch is on.

c. Check the power source by plugging the printer directly into the wall or into a

different outlet.

d. If none of these measures restores power, replace the low-voltage power supply.

e. If replacing the low-voltage power supply does not restore power, replace the dc

controller.

2. Check the cabling.

a. Check the cable connection between the printer and the computer or network port.

Make sure that the connection is secure.

b. Make sure that the cable itself is not faulty by using a different cable, if possible.

c. Check the network connection. See 

.

3. Make sure that the print media you are using meets specifications. See the HP Color

LaserJet 2550 Series Printer User Guide for information about print-media specifications.

4. Press   (Go) and   (Cancel Job) simultaneously to print a Configuration page and a

Supplies Status page. If the printer is network-enabled, an HP Jetdirect page also prints.

●

If the Configuration and Supplies Status pages do not print, check the following items:

a. Check that there is paper in at least one of the printer input trays.

b. If the page jams in the printer, see 

.

c. Try again to print the Configuration and Supplies Status pages.

●

If the Configuration and Supplies Status pages print, check the following items:

a. If the pages print correctly, then the printer hardware is working. The problem is in

the computer you are using, the printer driver, or the program.

b. If the pages do not print correctly, calibrate the printer. See 

.

c. Print the pages again. If the pages still do not print correctly, the problem is in the

printer hardware.

5. At the computer, check the print queue or print spooler (Print Monitor or Print Center

Queue for Mac OSs) to see if the printer is paused or set to print offline.

6. Verify that you have installed the HP color LaserJet 2550 series printer driver. Check the

program to make sure that you are using the HP color LaserJet 2550 series printer driver.

7. Print a page from the HP LaserJet Toolbox, if available.

Chapter 6 Troubleshooting

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