HP Officejet Pro 8000 User Manual

							5
Maintain and troubleshoot
This section contains the following topics:
•
Supported ink cartridges
•
Replace the ink cartridges
•
Maintain the printheads
•
Store printing supplies
•
Troubleshooting tips and resources
•
Solve printing problems
•
Poor print quality and unexpected printouts
•
Solve paper-feed problems
•
Solve device management problems
•
Solve network problems
•
Solve wireless problems
•
Troubleshoot installation issues
•
Clear jams
•
Errors
Supported ink cartridges
Ordering cartridges online is not supported in all countries/regions. However, many
countries have information on ordering by telephone, locating a local store and printing
a shopping list. In addition, you can select the How to Buy option at the top of the
www.hp.com/buy/supplies page to obtain information about purchasing HP products in
your country.
You can find the ink cartridge number in the following places:
• On the Information page of the embedded Web server (see 
Embedded Web
server).
•Windows: From the HP Toolbox, if you have bidirectional communication, click
the Estimated Ink Levels tab, scroll to display the Cartridge Details button, and
then click Cartridge Details.
•Mac OS X: From the HP Printer Utility, click Supply Info from the Information
and Support panel, and then click Retail Supplies Information.
• On the label of the ink cartridge you are replacing.
•Solution Center: From the Solution Center you can view supplies information from
the Shopping tab or the estimated ink level screen.
• On the configuration page (see 
Understand the self-test diagnostic page).
NOTE:Ink from the cartridges is used in the printing process in a number of
different ways, including in the initialization process, which prepares the device and
cartridges for printing, and in printhead servicing, which keeps print nozzles clear
and ink flowing smoothly. In addition, some residual ink is left in the cartridge after
it is used. For more information see 
www.hp.com/go/inkusage.
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							Replace the ink cartridges
You can check the estimated ink levels from the HP Toolbox (Windows), the HP
Printer Utility (Mac OS X), or the embedded Web server. For information about using
these tools, see 
Use device management tools. You can also print the configuration
page to view this information (see 
Understand the self-test diagnostic page).
NOTE:Ink level warnings and indicators provide estimates for planning purposes
only. When you receive a low-ink warning message, consider having a
replacement cartridge available to avoid possible printing delays. You do not need
to replace cartridges until prompted to do so.
After removing a cartridge from its package, install it right away. Do not remove a
cartridge from the device for long periods of time.
To find out which ink cartridges work with your device, see 
Supplies.
For information on recycling used ink supplies, see 
HP inkjet supplies recycling
program.
To replace the ink cartridges
1.Gently pull open the ink cartridge cover.
2.Remove the ink cartridge that requires replacement by grasping it between your
thumb and forefinger and pulling it firmly toward you.
3.Remove the new ink cartridge from its package.
4.Align the cartridge with its color-coded slot, and insert the cartridge into the slot.
Press down firmly on the cartridge to ensure proper contact.
5.Close the ink cartridge cover.
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							Maintain the printheads
If printed characters are incomplete, or printouts are streaked, the ink nozzles might be
clogged, and you might need to clean the printheads.
When the quality of printouts deteriorates, follow the steps below:
1.Check the health of the printheads. For more information, see 
To check printhead
health.
2.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.
3.Clean the printheads. For more information, see 
To clean the printheads.
4.Replace the printheads if the problems persist after cleaning. For more
information, see 
To replace the printheads.
This section covers the following printhead maintenance tasks:
•
To check printhead health
•
To print the print quality diagnostic page
•
To align the printheads
•
To clean the printheads
•
To clean the printhead contacts manually
•
To calibrate the linefeed
•
To replace the printheads
To check printhead health
Use one of the following means to check the printhead health. If the status of any
printhead is replace, then perform one or more of the maintenance functions, or clean
or replace the printhead.
•Configuration Page: Print the configuration page on a clean sheet of white paper,
and check the printhead health section. For more information, see 
Understand the
self-test diagnostic page.
•Embedded Web server: Open the embedded Web server. For more information,
see 
To open the embedded Web server. Click the Information tab, and then click
Ink Supplies in the left pane.
•HP Toolbox (Windows): Open the HP Toolbox. For more information, see 
Open
the HP Toolbox. Click the Information tab, and then click Printhead Health.
To print the print quality diagnostic page
Use the print quality diagnostic page to diagnose issues affecting the print quality. This
will help you decide whether to run any maintenance services to improve the print
Maintain the printheads59
 
						

							quality of your printouts. You can also view the ink level information and the printhead
health status on the page.
•
Control panel: Press and hold the 
 Power button, press the  Cancel button
seven times, press the 
Resume button two times, and release the  Power
button.
•Embedded Web server: Click the Settings tab, click Device Services in the left
pane, select Print PQ (print quality) diagnostic page from the drop-down list in
the Print Quality section, and then click Run Diagnostic.
•HP Toolbox (Windows): Click the Services tab, and then click Print PQ (print
quality) diagnostic page and follow the onscreen instructions.
•HP Printer Utility (Mac OS X): Click Print Quality Diagnostics from the
Information and Support panel.
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							1Printer Information: Shows device information (such as the product model number, serial
number, and firmware version number), the number of pages printed from the trays and
duplexer, the ink level information, and the printhead health status.
NOTE:Ink level warnings and indicators provide estimates for planning purposes only.
When you receive a low-ink warning message, consider having a replacement cartridge
available to avoid possible printing delays. You do not need to replace cartridges until
prompted to do so.
2Test Pattern 1: If the lines are not straight and connected, align the printheads. For more
information, see To align the printheads.
3Test Pattern 2: If there are thin white lines across any of the colored blocks, clean the
printheads. For more information, see To clean the printheads.
4Test Pattern 3: If there are dark lines or white gaps where the arrows are pointing,
calibrate the linefeed. For more information, see To calibrate the linefeed.
To align the printheads
Whenever you replace a printhead, the device automatically aligns the printheads to
ensure the best print quality. However, if the appearance of your printed pages
indicates that the printheads are misaligned, you can start the alignment process
manually.
•
Control panel: Press and hold the 
 Power button, press the  Resume button
three times, and release the 
 Power button.
•Embedded Web server: Click the Settings tab, click Device Services in the left
pane, select Align Printer from the drop-down list in the Print Quality section,
and then click Run Diagnostic.
•HP Toolbox (Windows): Click the Services tab, and then click Align Printheads,
and follow the onscreen instructions.
•HP Printer Utility (Mac OS X): Click Align from the Information and Support
panel.
To clean the printheads
If printed characters are incomplete, or dots or lines are missing from printouts, ink
nozzles might be clogged, and you might need to clean the printheads.
NOTE:Cleaning uses ink, so clean the printheads only when necessary.
The cleaning process can take several minutes. Some noise might be generated in
the process.
Make sure paper is loaded before you begin to clean the printheads.
•
Control panel: Press and hold the  Power button, press the  Cancel button
two times, press the 
 Resume button one time, and release the  Power button.
•Embedded Web server: Click the Device Settings tab, click Device Services in
the left pane, select Clean Printheads from the drop-down list in the Print Quality
section, and then click Run Diagnostic.
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							•HP Toolbox (Windows): Click the Services tab, click Clean Printheads and
follow the onscreen instructions.
•HP Printer Utility (Mac OS X): Click Clean from the Information and Support
panel.
To clean the printhead contacts manually
After the printheads are installed, one or more of the printhead lights might be blinking.
If the printhead lights are blinking, you might need to clean the electrical contacts on
the printheads and in the device.
CAUTION:Electrical contacts contain sensitive electronic components that can
be damaged easily.
1.Make sure paper is loaded in Tray 1.
2.Open the top cover.
3.
If the carriage does not move to the left automatically, press and hold the 
Resume button until the carriage moves to the left. Wait for the carriage to stop
moving, and then unplug the power cord from the printer.
4.Lift the printhead latch.
5.Lift the handle of the printhead you want to replace, and then pull the printhead out
of its slot.
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							6.Obtain a clean, dry, soft, and lint-free cleaning material. Suitable materials include
paper coffee filters and eyeglass lens cleaning paper.
CAUTION:Do not use water.
7.Wipe the electrical contacts on the printhead, but do not touch the nozzles.
CAUTION:The electrical contacts are small copper-color squares, grouped
on one face of the printhead.
The nozzles are on a different face of the printhead. Ink will be visible on the
nozzles.
Touching the nozzles can cause permanent nozzle damage. Also, ink can
permanently mark clothing.
8.After cleaning, place the printhead on a sheet of paper or paper towel. Make sure
the nozzles are facing up and are not in contact with the paper.
9.Clean the electrical contacts in the printhead slot inside the device with a clean,
dry, soft, and lint-free cloth.
10.Insert the printhead into its color-coded slot (the label on the printhead must match
the label on the printhead latch). Press down firmly on the printhead to ensure
proper contact.
11.Pull the printhead latch all the way forward, and then press down to ensure that
the latch is properly engaged. You might have to apply some pressure to engage
the latch.
Maintain the printheads63
 
						

							12.Close the cover.
13.If the printhead light is still blinking, repeat the cleaning procedure described above
for the printhead which corresponds to the blinking printhead light.
14.If the printhead light continues to blink, replace the printhead which corresponds to
the blinking printhead light.
15.Wait while the device initializes the printheads and prints the alignment pages. If
the device does not print the pages, start the alignment process manually. For
more information, see 
To align the printheads.
To calibrate the linefeed
If your printout shows bandings (dark or light lines across colored block) or staggered
lines, calibrate the printers linefeed.
•
Control panel: Press and hold the 
 Power button, press the  Cancel button
14 times, press the 
 Resume button six times, and release the  Power button.
•Embedded Web server: Click the Settings tab, click Device Services in the left
pane, select Calibrate Linefeed from the drop-down list in the Print Quality
section, and then click Run Diagnostic.
•HP Toolbox (Windows): Click the Services tab, click Calibrate Linefeed and
follow the onscreen instructions.
•HP Printer Utility (Mac OS X): Click Calibrate Linefeed from the Information
and Support panel.
To replace the printheads
NOTE:To find out which printheads work with your printer, see Supplies.
1.Open the cover.
2.Make sure paper is loaded in Tray 1.
3.
If the carriage does not move to the left automatically, press and hold the 
Resume button until the carriage moves to the left. Wait for the carriage to stop
moving.
4.Lift the printhead latch.
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							5.Lift the handle of a printhead, and use it to pull the printhead out of its slot.
6.Before installing a printhead, shake the printhead up and down at least six times
while the printhead is still in its packaging.
7.Remove the new printhead from its package, and then remove its orange
protective caps.
CAUTION:Do not shake printheads after the caps are removed.
Maintain the printheads65
 
						

							8.Insert the printhead into its color-coded slot (the label on the printhead must match
the label on the printhead latch). Press down firmly on the printhead to ensure
proper contact.
9.Pull the printhead latch all the way forward, and then press down to ensure that
the latch is properly engaged. You might have to apply some pressure to engage
the latch.
10.Close the cover.
11.Wait while the device initializes the printheads and prints the alignment pages. If
the device does not print the pages, start the alignment process manually. For
more information, see 
To align the printheads.
Store printing supplies
This section covers the following topics:
•
Store ink cartridges
•
Store printheads
Store ink cartridges
Ink cartridges can be left in the device for extended periods of time. If you remove the
ink cartridges, place them in an airtight container, such as a resealable plastic bag.
Store printheads
Printheads can be left in the device for extended periods of time. However, to assure
optimal printhead health, be sure to turn off the device properly. For more information,
see 
Turn off the device.
Troubleshooting tips and resources
Use the following tips and resources to resolve printing problems:
• For a paper jam, see 
Clear a jam in the device.
• For paper-feed problems, such as the paper skew and paper pick, see 
Solve
paper-feed problems.
• Power light is on and not blinking. When the device is turned on for the first time, it
takes approximately 20 minutes to initialize it after the printheads are installed.
• No error messages appear on the computer screen.
• 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 tray and is not jammed in the device.
• Printheads and ink cartridges are properly installed in their correct color-coded
slots. Press down firmly on each one to ensure proper contact.
• Printhead latch and all covers are closed.
• The duplexer is locked into place.
• All packing tapes and materials are removed.
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