HP Officejet Pro 8500 User Manual

							To clean the glass strip inside the automatic document feeder (two-line display)
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.
Clean the device 187
 
						

							4.Lift the automatic document feeder mechanism, using the two hand grip areas in
the front and rear of the device.
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 cover of the
automatic document feeder.
7. Close the lid.
8. Plug in the power cord, and then turn on the HP all-in-one.
General troubleshooting tips and resources
Try these when you begin troubleshooting a printing problem.
• For a paper jam, see 
Clear jams .
• For paper-feed problems, such as the paper skew and paper pick, see 
Solve
paper-feed problems .
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							• Make sure that the power light is on and not blinking. When the device is turned onfor the first time, it takes approximately 20 minutes to initialize it after the
printheads are installed.
• Make sure that 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 .
• Make sure that the media is loaded correctly in the input tray and is not jammed in the device.
• Make sure that all packing tapes and materials are removed.
• Make sure that the device is set as the current or default printer. For Windows, set it as the default in the Printers folder. For the Mac OS X, set it as the default in the
Printer Setup Utility (Mac OS X v.10.4). For Mac OS X (v.10.5), open  System
Preferences , select Print & Fax , and then select the device from the  Default
Printer  drop-down list. See your computers documentation for more information.
• Make sure that  Pause Printing is not selected if you are using a computer running
Windows.
• Make sure that you are not running  too many programs when you are performing a
task. Close programs that you are not  using or restart the computer before
attempting the task again.
Troubleshooting topics
•
Solve printing problems
•
Poor print quality and unexpected printouts
•
Solve paper-feed problems
•
Solve copy problems
•
Solve scan problems
•
Solve fax problems
•
Solve network problems
•
Solve wireless problems
•
Solve photo (memory card) problems
•
Troubleshoot installation issues
Solve printing problems
•The device shuts down unexpectedly
•
Error message appears on control-panel display
•
The device is not responding (nothing prints)
•
Device takes a long time to print
•
Placement of the text or graphics is wrong
•
The device prints half a page, then ejects the paper
Solve printing problems 189
 
						

							The device shuts down unexpectedly
Check the power and power connections
Make sure the device is connected firmly to a functioning alternating current (AC)
power outlet. For voltage requirements, see 
Electrical specifications.
Error message appears on control-panel display
A non-recoverable error has occurred
Disconnect all cables (such as power cord, network cable, 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. For more information on error messages, see 
Device control-panel message
types .
The device is not responding (nothing prints)
If the device supports wireless communication, see also Solve wireless problems .
Check the device setup
For more information, see 
General troubleshooting tips and resources .
Check the printhead initialization
When printheads are installed or replaced, the device automatically prints a few
alignment pages to align the printheads. This process takes about 20 minutes. Until
this process is complete, only the automatic alignment pages can be printed.
Check the device software installation
If the device is turned off when printing,  an alert message should appear on your
computer screen; otherwise, the device software might not be installed correctly. To
resolve this, uninstall the software completely, and then reinstall the device software.
For more information, see 
Uninstall and reinstall the software .
Check the cable connections
• Make sure both ends of the network/USB cable are secure.
• If the device is connected to a network, check the following: ◦Check the Link light on the back of the device.
◦ Make sure you are not using  a phone cord to connect the device.
◦ The network hub, switch, or router is turned on and working properly.
Check the device setup for a network environment
Ensure the correct device driver and printer  driver port are being used. For more
information about network connections, see 
Configure the device (Windows) ,
Configure the device (Mac OS X), or the documentation provided by your network
vendors.
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							Check any personal firewall software installed on the computer
The personal software firewall is a security program that protects a computer from
intrusion. However, the firewall might block communication between the computer and
the device. If there is a problem communicating with the device, try temporarily
disabling the firewall. If the problem persists, the firewall is not the source of the
communication problem. Re-enable the firewall. For more information, see 
Configure
your firewall to work with HP devices.
If disabling the firewall allows you to communicate with the device, you might want to
assign a static IP address to the device and re-enable the firewall. For more
information, see 
To change IP settings .
Device takes a long time to print
Check the system configuration
Make sure the computer meets the minimum system requirements for the device. For
more information, see 
System requirements .
Check the device software settings
Print speed is slower when  Best or Maximum dpi is selected as the print quality. To
increase the print speed, select different print settings in the device driver. For more
information, see 
Change print settings .
Check for radio interference
If the device is connected using wireless communication and is printing slowly, then
the radio signal might be weak.
Placement of the text or graphics is wrong
If these solutions do not work, the problem may be caused by the inability of the
application to interpret print settings properly. See the release notes for known
software conflicts, refer to the applications documentation, or contact the software
manufacturer for specific help.
Check how the media is loaded
Make sure the media width and length guides fit snugly against the edges of the stack
of media, and make sure the trays are not overloaded. For more information, see 
Load
media .
Check the media size
• Content on a page might be cut off if the document size is larger than the media that you are using.
• Make sure the media size selected in  the printer driver matches the size of media
loaded in the tray. For more information, see 
Select print media .
Solve printing problems 191
 
						

							Check the margin settings
If the text or graphics are cut off at the edges of the page, make sure the margin
settings for the document do not exceed the printable area of your device. For more
information, see 
Supported devices.
Check the page-orientation setting
Make sure the media size and page orientation selected in the application match the
settings in the printer driver. For more information, see 
Change print settings .
Check the device location and length of USB cable
It is recommended that you use a USB cable  that is less than 3 meters (9.8 feet) long
to minimize the effects of these electromagnetic fields. Also try another USB cable to
see if the USB cable has failed.
The device prints half a page, then ejects the paper
Check the ink cartridges
The ink cartridges may have run out of ink, and the print job was cancelled. Replace
the ink cartridges, and then resend the print job to the device. For more information,
see 
Replace the ink cartridges .
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.
Clean the printhead
Complete the printhead cleaning procedure. For more information, see 
To clean the
printheads .
Poor print quality and unexpected printouts
•General print quality troubleshooting
•
Meaningless characters print
•
Ink is smearing
•
Ink is not filling the text or graphics completely
•
Output is faded or dull colored
•
Colors are printing as black and white
•
Wrong colors are printing
•
Printout shows bleeding colors
•
The printout has a horizontal band of distortion near the bottom of a borderless print
•
Colors do not line up properly
•
Text or graphics are streaked
•
Something on the page is missing or incorrect
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							General print quality troubleshooting
Check the printheads and ink cartridges
Print the print quality diagnostic page on a clean sheet of white paper. Evaluate any
problem areas, and perform the recommended actions. For more information, see 
To
print the print quality diagnostic page.
Check the paper quality
Make sure the media meets HP specifications, and try to print again. For more
information, see 
Select print media .
Check the type of media loaded in the device
• Make sure the tray supports the type of media you have loaded. For more information, see 
Understand specifications for supported media .
• Make sure you have selected the tray in the print driver that contains the media that you want to use.
Check the device location and length of USB cable
It is recommended that you use a USB cable  that is less than 3 meters (9.8 feet) long
to minimize the effects of these electromagnetic fields. You can also try to use a
different USB cable to see if the USB cable has failed.
Meaningless characters print
If an interruption occurs to a job that is printing, the device might not recognize the rest
of the job.
Cancel the print job and wait for the device to return to the ready state. If the device
does not return to the ready state, cancel all jobs in the printer driver, power cycle the
device, and then print the document.
Check the cable connections
If the device and computer are connected with  a USB cable, the problem may be due
to a poor cable connection.
Make sure the cable connections at both ends are secure. If the problem persists, turn
off the device, disconnect the cable from the device, turn on the device without
connecting the cable, and delete any remaining jobs from the print spooler. When the
Power light is on and not flashing, reconnect the cable.
Check the document file
The document file may be damaged. If you can print other documents from the same
application, try printing a backup copy of your document, if available.
Poor print quality and unexpected printouts 193
 
						

							Ink is smearing
Check the print settings
• When you print documents that use a lot of ink, allow more time to dry beforehandling the printouts. This is especially true for transparencies. In the printer
driver, select the Best  print quality, and also increase the ink drying time and
reduce the ink saturation, using the ink volume under the advanced features
(Windows) or ink features (Mac OS X). However, note that decreasing ink
saturation might give printouts a washed-out quality.
• Color documents that have rich, blended colors can wrinkle or smear when printed using the  Best print quality. Try using another print mode, such as  Normal, to
reduce ink, or use HP Premium Paper designed for printing vivid color documents.
For more information, see 
Change print settings.
Check the media type
• Some types of media do not accept ink well. For these types of media, ink will dry more slowly and smearing may occur. For more information, see 
Select print media .
• Make sure that the media in the tray matches the media type selected in the printer driver.
Ink is not filling the text or graphics completely
Check the media type
Some media types are not suitable for use with the device. For more information, see
Select print media .
Check the printheads
Print the print quality diagnostic page on a clean sheet of white paper. Evaluate any
problem areas, and perform the recommended actions. For more information, see 
To
print the print quality diagnostic page .
Output is faded or dull colored
Check the print mode
The Draft  or Fast  mode in the printer driver allows you  to print at a faster rate, which is
good for printing drafts. To get better results, select  Normal or Best . For more
information, see 
Change print settings .
Check the paper type setting
When printing on transparencies or other special media, select the corresponding
media type in the print driver. For more information, see 
Print on special and custom-
sized media .
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							Colors are printing as black and white
Check the print settings
Make sure Print in Grayscale  is not selected in the printer driver.
Wrong colors are printing
Check the print settings
Make sure Print in Grayscale  is not selected in the printer driver.
Check the printheads
Print the print quality diagnostic page on a clean sheet of white paper. Evaluate any
problem areas, and perform the recommended actions. For more information, see 
To
print the print quality diagnostic page .
Printout shows bleeding colors
Check the ink cartridges
Make sure you are using genuine HP ink. For ordering information, see 
HP supplies
and accessories .
Check the printheads
Print the print quality diagnostic page on a clean sheet of white paper. Evaluate any
problem areas, and perform the recommended actions. For more information, see 
To
print the print quality diagnostic page .
The printout has a horizontal band of distortion near the bottom of a borderless
print
Check the paper type
HP recommends that you use HP papers or any other paper type that is appropriate
for the product. Always make sure the paper  you are printing on is flat. Uncurl paper
by bending it in the opposite direction of the curl. For best results when printing
images, use HP Advanced Photo Paper. Store photo media in its original packaging
inside a resealable plastic bag on a flat surface,  in a cool place. When you are ready
to print, remove only the paper you plan to use immediately. When you have finished
printing, return any unused photo paper to the original package and reseal the bag.
This will prevent the photo paper from curling. For more information, see 
Select print
media .
Use a higher print quality setting
Check the print quality setting and make sure it is not set too low. Print the image with
a high print quality setting, such as  Best or Maximum  dpi.
Poor print quality and unexpected printouts 195
 
						

							Rotate the image
• If the problem persists, use the software you installed with the product or anothersoftware application to rotate your image 180 degrees so that the light blue, gray,
or brown hues in your image do not print at the bottom of the page. The defect is
more noticeable in areas of uniform light colors, so rotating the image may help.
• There could be a problem with the printhead. Clean the printhead. For more information, see 
To clean the printheads .
Colors do not line up properly
Check the printheads
Print the print quality diagnostic page on a clean sheet of white paper. Evaluate any
problem areas, and perform the recommended actions. For more information, see 
To
print the print quality diagnostic page.
Check the graphics placement
Use the zoom or print preview feature of  your software to check for gaps in the
placement of graphics on the page.
Text or graphics are streaked 
Check the printheads
Print the print quality diagnostic page on a clean sheet of white paper. Evaluate any
problem areas, and perform the recommended actions. For more information, see 
To
print the print quality diagnostic page .
Something on the page is missing or incorrect
Check the printheads
Print the print quality diagnostic page on a clean sheet of white paper. Evaluate any
problem areas, and perform the recommended actions. For more information, see 
To
print the print quality diagnostic page.
Check the margin settings
Make sure the margin settings for the document do not exceed the printable area of
the device. For more information, see 
Supported devices .
Check the color print settings
Make sure  Print in Grayscale  is not selected in the print driver.
Solve paper-feed problems
Media is not supported for the printer or tray
Use only media that is supported for the  device and the tray being used. For more
information, see 
Understand specifications for supported media .
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