Technical information

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However, if you observe missing colors or poor image quality then air may have been accidentally
ingested into the ink lines between the cartridge(s) and PRINTHEAD. To recover from this problem, you
will have to run the "Clean Printhead" procedure 1-2 times to recover the ink system. Watch the video
on the HP support page which describes some of the common issues you may encounter with refilled ink
cartridges. This type of problem is common and completely recoverable.
http://inkjet411.com/?page_id=1407
There is no ‘lock-out’ feature on the HP 564 ink series printer models to our knowledge...you should be
able to resume normal printer operations. If not, please let us know the 'exact language' of the error
message you are observing and for which ink cartridge (Cyan, Magenta, Yellow, Black, or P hoto Black if
applicable).
NOTE 1: The HP 564 printer models have an electronic PRINTHEAD within the base of the carriage
assembly (responsible for pulling ink from the 4 (or 5) ink cartridges and then firing the ink droplets onto
the paper) – these will eventually fail depending on print usage type and printer duty cycle (i.e. rated for
~8,000 printed pages over life, but the consumer average is typically closer ~6,000 pages). The printhead
is replaceable and can be ordered directly from HP.com. For information on how the PRINTHEAD
functions, please watch the following video: http://inkjet411.com/?page_id=2054
NOTE 2: HP does not allow an automatic reset of the HP 564 / 564XL electronic chip on the cartridge
after a refill, so the ink level indicator is sending a false message that the ink level is low. Your cartridge
is not low on ink, and nothing is wrong with your printer or cartridges. The ink level indicator usually
cannot be manually re-set, so the ink level indicator is often not usable. However, losing this feature is
not necessarily significant, because the ink level indicator usually has substantial usable ink remaining
when it shows "low on ink". If you observe "Unauthorized ink", "non-HP ink", "counterfeit ink" or similar
messages, you may ignore/dismiss this message by pressing 'OK' once for each cartridge, so that the
printer resumes its normal operation.
**Typically the printhead should not reach it’s end-of-life until after a minimum of 8 or more complete
sets of cartridge changes; officejet models typically have a higher print page throughput average, but
this is not always the case. While some printheads may last 15,000+ pages others may only last 3000
pages, actual results will vary. The printhead will eventually fail in time due to an internal micro-
electronics failure, due to the following leading factors: general customer print usage and printer care,
printer duty cycle (i.e. # pages printed per month), printing frequency (i.e. time between each print job),
print mode (i.e. draft vs. normal) and content printed (i.e. photos vs plain pages) and color mode (black
and white only vs. color/greyscale printing). Paper types used (i.e. plain paper, photo papers &
matte/heavy bond papers) and paper edge curl (i.e. duration in printer and/or exposure to low relative
humidity) can also quickly lead to premature printhead failures due to physical ‘head strikes’ of the
paper edges making repeated contact with the printhead nozzle plate surfaces.
Please let us know if the error condition persists. For any additional questions please contact us directly:
[e-mail]