Technical information

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NOTE 1: In addition to “Low Ink” alerts, for "Unauthorized ink", "Non-HP ink", "Fraud", "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. We suggest you do this at the printer's control panel
immediately following ink cartridge(s) installation. For more information on this, please visit:
http://inkjet411.com/?page_id=1925 (564/920 cartridge errors page)
http://inkjet411.com/?page_id=856 (564/920 main page)
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 (564 Tips page)
http://inkjet411.com/?page_id=1589 (920 Tips page)
There is no ‘lock-out’ feature on the HP 564/920 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 Photo Black if
applicable).
NOTE 2: HP does not allow an automatic reset of the 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. For more information on this, click here:
http://inkjet411.com/?page_id=1925 (564 cartridge errors page)
http://inkjet411.com/?page_id=856 (564/920 main page)
Losing the ink monitoring feature is not necessarily significant because the ink level indicator usually has
substantial usable ink remaining when it shows "low on ink". Therefore, the warning has limited value,
because customers who prematurely replace their cartridges when they see the "low ink" message are
wasting a lot of residual ink. In order to use as much available ink as possible, many customers (not only
those who refill their cartridges, but many who have not yet tried refilling) always ignore the ink level
indicator "low" warning, and wait to replace or refill the cartridge until immediately after seeing ink
begin to fade on their printouts.
Many customers who disregard the low ink indicator keep a spare set of cartridges so that their printing
productivity is not disrupted when the cartridge runs out of ink. If the cartridge completely runs out o f
ink and continues to be used when it is dry, this could damage the cartridge, so customers should
promptly refill their cartridge when the ink begins to fade. This fading process is gradual, so that you will
have sufficient time to refill the cartridge before the risk of empty cartridge printing. In summary, most
refill customers agree that the huge savings of refilling is much greater than the potential loss of the low
ink indicator feature.