Document number: bpp03878
HP Designjet CP Series Printers - Ink System Error 66-YYYY
Introduction
The printheads indicated by flashing squares have failed, either during printhead initialization or printing. The printer may have detected an unusual electrical or thermal signal from the printhead that may require attention. The most likely causes are ink cartridge empty or an internal printhead problem. The error data is as follows: 1000-Yellow, 0100-Cyan, 0010-Magenta, or 0001-Black (example YYYY=0110: Cyan and Magenta). Use the information below to determine the cause of the failure and perform the necessary troubleshooting steps to resolve.
Troubleshooting steps
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With the error displayed on the printer's front panel, press the Down Arrow key to check the printheads.
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Open the Top cover window and remove the printheads indicated as failed.
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Reseat the failed printhead(s), try twice (if needed), as contacts might be worn.
note:
When inserting printheads the square on front panel display should change to an hourglass and then a steady square, if the printhead is accepted. -
If unsuccessful, remove all the printheads.
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Clean the electrical contacts in all carriage slots and on all printheads (instructions below).
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Reinstall one printhead at a time and watch the front panel display for the corresponding square to change to a steady square. Remove each printhead before inserting another one into the Carriage.
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Continue testing the remaining printheads, one at a time.
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If any printhead(s) fail, replace the failing ink system and verify functionality.
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If the problem persists, contact HP.
Cleaning the carriage and printhead contacts
Tools needed:
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Lint-free cloth
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Distilled water (if available but not necessary)
warning:
Avoid dry cotton swabs or dry fiber-like towels (loose lint of fibers may scratch the delicate materials thereby causing damage to the printheads).
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Prepare lint-free cloths dampened with warm distilled water (if available). Be sure to rotate the lint-free cloth between the thumb and forefinger to pack the cotton and remove excess water. Never drip water into the printer.
warning:
Avoid using alcohol or other cleaning solvents, chemicals may cause damage to the printheads. -
Remove the printhead from its stall. Hold it by the top and turn it upside down so that the nozzle plate of the printhead is facing upward. Do not clean the nozzle plate.Figure : Printhead nozzle plate
warning:
Do not wipe or clean the actual nozzle area of the printheads. Wiping or rubbing this area may cause damage to the printhead. -
Using the Lint-free cloth, clean the entire area along the electrical contact pads, especially where it bends down the backside of the printhead. Wipe the contact pads very gently toward the cap end of the printhead. Following this procedure will ensure that debris/contaminants are not wiped onto or toward the nozzle plate.
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Prepare another clean lint-free cloth dampened with water. Be sure to rotate the lint-free cloths between the thumb and forefinger to pack the cotton and remove excess water.
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Using the Lint-free cloth, clean the entire area along the carriage electrical contact pads.
caution:
Wait until all the cleaned parts are dry. -
Reinsert the printheads as instructed above.
Contact HP?
If the issue is unresolved, click here to contact HP support (http://thenew.hp.com/country/us/eng/contact_us.html) and provide the following information:
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Document number bpp03878 used for troubleshooting and a brief problem description to assist HP support in resolving the issue
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After completing the troubleshooting steps listed above, does the printer still exhibit the same issue?
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Are original non-refilled HP ink systems being used?
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