HP 2500 L Service Manual

EN 6 Troubleshooting189
Random image repetition
If an image that appears at the top of the page (in solid black) repeats farther down the page (in 
a gray field), the toner might not have been completely erased from the last print job. The 
repeated image might be lighter or darker than the field in which it appears.

Clean the printer. Open the HP Color LaserJet 2500 Series Toolbox to use the cleaning 
page. See “To use a cleaning page ” on page 53 for details.

In your program, change the tone...

190Troubleshooting C9706-90926
If the problem is not resolved 
If the problem is not resolved, try these steps:
1Perform a cleaning and calibration. See  “Calibrating the printer ” on page 54.
2 Print the Configuration page and Supplies Status page again.
If the pages print correctly, then the problem is in the program, the computer, or the printer 
driver.
 If the pages do not print correctly, then the problem is in the printer hardware. The 
problem might be the fuser or the imaging drum. 
3 Change...

EN 6 Troubleshooting191
Solving image-quality problems (color print jobs) 
This section describes issues that can occur when you print in color.
Important step
Whenever you are experiencing color-related issues, calibrate the printer before trying any other 
steps. See “Calibrating the printer”  on page 54.
Print-quality troubleshooting page
The print-quality troubleshooting page is available through the HP Color LaserJet 2500 Series 
Toolbox. The print-quality troubleshooting page is also available...

192Troubleshooting C9706-90926
Only black prints
Only black is printing when the document should be printing in color.

Color mode is not selected in your program or printer driver. Select color mode instead of 
grayscale mode.

If you are printing on transparencies, all transparencies print in grayscale.

The correct printer driver is not selected in the program. Select the correct printer driver.

The printer is not properly configured. Check the printer configuration by printing a 
Configuration page....

EN 6 Troubleshooting193
Color prints inconsistently
A color is printing inconsistently after you load a new print cartridge.

Another print cartridge might be low on toner. Check the supplies status lights or embedded 
Web server to see if a print cartridge is low and replace it if necessary. If you are using a 
non-HP print cartridge, it might be low or empty but you will receive no indication. 

Print cartridges might be improperly installed. Remove the print cartridge for the color that is 
printing...

194Troubleshooting C9706-90926
Resolving problems that generated messages 
This section helps resolve problems that generated messages on the computer.
Messages for both Windows and Macintosh
This section lists some common errors that only provide a simple message but no information for 
resolving the error. Errors that you see in Printer Status and Alerts, the HP Color LaserJet 2500 
Series Toolbox, or the embedded Web server provide their own instructions for resolving the 
error. For other errors...

EN 6 Troubleshooting195
Resolving problems that did not generate messages
Troubleshooting checklist 
If the printer is not responding correctly, 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 remaining steps on the checklist.
1Make sure the printer Ready light is on. If no lights are on, complete the following steps:
 aCheck the power...

196Troubleshooting C9706-90926
5
Verify that you have installed the HP Color LaserJet 2500 series printer driver. Check the 
program to make sure that you are using an HP Color LaserJet 2500 series printer driver.
6 Use the printer-driver properties to check the assigned port.
7 Print a page from the HP Color LaserJet 2500 Series Toolbox (Windows 98 and later only). 
 aIf the page prints, then the problem is with the printer driver. Try using one of the other 
printer drivers. Or, uninstall the printer...

EN 6 Troubleshooting197
Solving general printing problems
In addition to the problems listed in this section, see  “Solving common Macintosh problems ” on 
page 202 if you are using a Macintosh computer, and see  “Solving PostScript (PS) errors ” on 
page 201 if you are using several printer languages.
Table 27. Solving general printing problems Symptom Possible Cause Solution
The print job is 
extremely slow. The job might be very complex (for 
example, if it contains graphics).
Wait for the job to...

198Troubleshooting C9706-90926
Printer does not pull 
paper from optional 
tray 2 or optional 
tray 3.The rear paper length guide (optional 
tray 2) or the rear paper stop (optional 
tray 3) is set incorrectly.
To set the rear guides properly, see 
“Loading optional tray 2” on 
page 39 or  “Loading optional tray 3 ” on page 40.
The tray is not recognized in the 
printer software. Configure the printer software to recognize the tray.
If the printer does not pull paper from 
either tray, the problem might...