HP Officejet 6500 User Manual

Preventing the problem that causes ragged bars on the Print Quality Diagnostic
report:
• Avoid leaving opened ink cartridges outside of the printer for an extended period oftime.
• Wait until a new cartridge is ready to be installed before removing an old ink cartridge.
If you do not see any defects on the print quality report, then the printing system is working
correctly. There is no reason to replace supplies or have the product serviced, because
they are functioning properly. If you still have a...

If the color of any of the bars is not uniform, follow these steps:
1.If the printer was recently transported at a high altitude, try a printhead cleaning.
2. If the printer was not recently transported,  try printing another Print Quality Diagnostic
report. This will use less ink than a printhead cleaning, but if it is not effective, try a
cleaning.
3. Retry the Print Quality Diagnostic report. If the colors seem to be improving, continue
cleaning. If the colors get worse, contact HP - the printhead...

Example of a good alignment pattern. The lines are straight.
Examples of a bad alignment pattern. The lines are jagged - align the printer. If that does
not work, contact HP.
If the Print Quality Diagnostic report indicates that the printer is working correctly, try the
following:
• Check the paper
• Check the print settings
• Make sure your image file has sufficient resolution
• If the problem seems confined to a band near the edge of a print, use the software you installed with the device or another...

3.Clean the glass by using a soft, lint-free cloth that has been sprayed with a mild glass
cleaner. Dry the glass with a dry, soft, lint-free cloth.
CAUTION: Use only glass cleaner to clean the scanner glass. Avoid cleaners
that contain abrasives, acetone, benzene, and carbon tetrachloride, all of which
can damage the scanner glass. Avoid is opropyl alcohol because it can leave
streaks on the glass.
CAUTION: Do not spray the glass cleaner directly on the glass. If too much glass
cleaner is applied, the...

cover to access the pick assembly inside the automatic document feeder, clean the rollers
or separator pad, and then close the cover.
To clean the rollers or separator pad
1. Remove all originals from the document feeder tray.
2. Lift the automatic document feeder cover (1).
This provides easy access to the rollers (2) and separator pad (3), as shown below.
1Automatic document feeder cover
2Rollers
3Separator pad
3.Lightly dampen a clean lint-free cloth with distilled water, then squeeze any excess...

To clean the glass strip inside the automatic document feeder
1.Turn off the HP all-in-one, and unplug the power cord.
NOTE: Depending how long the HP all-in-one is unplugged, the date and time
might be erased. You might need to reset the date and time later, when you plug
the power cord back in.
2. Raise the lid, as if you were loading an original on the glass.
3.Lift the cover of the automatic document feeder.
Chapter 9
162 Maintain and troubleshoot
 

4.Lift the automatic document feeder mechanism.
There is a glass strip under the automatic document feeder.
5.Clean the glass strip with a soft cloth or sponge slightly moistened with a nonabrasive
glass cleaner.
CAUTION: Do not use abrasives, acetone, benzene, or carbon tetrachloride on
the glass, since they can damage it. Do not place or spray liquid directly on the
glass. The liquid might seep under the glass and damage the device.
6. Lower the automatic document feeder mechanism, and then close the...

• Power cord and other cables are working, and are firmly connected to the device.Make sure the device is connected firmly to a functioning alternating current (AC)
power outlet, and is turned on. For voltage requirements, see 
Electrical
specifications .
• Media is loaded correctly in the input tray and is not jammed in the device.
• All packing tapes and materials are removed.
• The device is set as the current or default printer. For Windows, set it as the default in the Printers folder. For Mac OS...

Error message appears on control-panel display
A non-recoverable error has occurred
Disconnect all cables (such as power cord and USB cable), wait about 20 seconds, and
reconnect the cables. If the problem persists, visit the HP Web site (
www.hp.com/
support) for the latest troubleshooting information, or product fixes and updates.
NOTE: For more information a bout error messages, see Errors.
Device takes a long time to print
Check the system configuration and resources
Make sure the computer m eets...

Check the media settings
• Make sure you select the correct print quality settings in the printer driver for the medialoaded in the trays.
• Make sure the page settings in the printer driver match the page size of media loaded in the tray.
More than one page is being picked
For more information on paper-feed problems, see 
Solve paper-feed problems .
There is a blank page in the file
Check the file to make sure there is no blank page.
Something on the page is missing or incorrect
Check the ink...