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Bernie
Bernie, Printer Technician
Category: Printers
Satisfied Customers: 7140
Experience:  6+ years experience, Microsoft MCDST/CompTia A+ Certified
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I have an HP 6500A Plus printer. The black ink cartridge will

Resolved Question:

I have an HP 6500A Plus printer. The black ink cartridge will not print. Other colors are printing. We just replaced cartridge so it's brand new. Worked this afternoon, and started with the problem this evening. Thought replacing cartridge would solve it, but did not.

Any ideas?
Submitted: 2 years ago.
Category: Printers
Expert:  Bernie replied 2 years ago.
Hello, and thanks for asking your question. My name is XXXXX XXXXX I will be your expert today.

Open the lid of the unit and take out the printheads (then unplug the printer):

graphic

Lift the handles on all the printheads and take them out.

graphic

Wipe any ink from the electrical contacts on the printhead with a q-tip dampened in hot water. Then, use a soft lint-free cloth to dry it off (Shown as #1 in the picture below, don't touch the nozzle, item #2):

graphic

Do this for the ink cartridges copper contacts as well:

graphic

graphic

After the electrical contacts on the printhead and cartridges are clean and dried for a short time, set them aside (make sure the nozzle on the bottom doesn't come in contact with anything).

Use a fresh soft lint-free cloth to clean the electrical contacts see inside the printer where the printheads sit.

graphic

Look in the center of the product for the four ink tubes that connect to the printhead, and then examine the ink tubes. The ink tubes should be bundled neatly, and they should not appear kinked or bent.

graphic

Shake the printheads back and forth about 5 times, then reinsert them along with the ink cartridges. Close the printer, and plug it back in and turn it on.

Now print a test page, on the control panel press the setup button > Tools > Select Clean Printhead

graphic

Look at the test pattern, if some of the blocks show white lines, clean the printhead 2-3 more times this way until they are gone. If there are white lines through all the blocks, including the gray blocks at the bottom of the test pattern,

graphic

Skip to this step:

Go back to setup > Tools and Select Calibrate Linefeed and press ok

source: hp.com

If you cannot print any test pages at all, then the printer will instead need to be serviced by HP. Please call 1-800-474-6836 to get a quote on the repairs (if it is within warranty they will be covered).

If you can print a test page but cleaning and calibrating does not take the white lines out, then one of the printheads need to be replaced, see below:

Black block has lines -replace Black/Yellow printhead.
Red block has lines - replace Black/Yellow printhead.
Green block has lines - replace Black/Yellow printhead.
Cyan block has lines - replace Magenta/Cyan printhead.
Magenta block has lines - replace Magenta/Cyan printhead.

The ink goes through these and sprays onto the paper, and if they are partially clogged or worn out, you will get horizontal lines and other printing defects. This is can happen and doesn't indicate anything mechanically wrong with the printer. Click HERE to determine the warranty date of the printheads, then call 1-800-474-6836 to get replacements.


Thank you,
Bernie
Bernie, Printer Technician
Category: Printers
Satisfied Customers: 7140
Experience: 6+ years experience, Microsoft MCDST/CompTia A+ Certified
Bernie and 6 other Printers Specialists are ready to help you

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