Technical information

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customers (i.e. in the tens of thousands) are quite pleased with Costco's Canon ink refill se rvice since
inception.
As far a general printer performance, there are other things which could be causing the current/ongoing
clogging issue:
1) As this printer writing system is ~5-6 years old, we suspect your PRINTHEAD (which can be removed
and flushed with water or 3rd party cleaning fluid) is likely nearing it's end of life (usually around 6-8,000
pages). It may need to be replaced.
2) There could be trapped particulates inside the printhead, so you should perform a 'flush' on the head
either using our procedure or a 3rd party procedure. Here is how we advise customers to do it on the
HP564/920 systems today: http://inkjet411.com/?page_id=2412
3) A dirty service station/wiper assembly can interfere with printed output; clean service station
wipers/pad - refer to your User's Manual.
4) If this does not remedy the problem, then you may have a defective print head in the printer,
unrelated to the refilled cartridges (the printhead is the electronic assembly which actually fires the ink
onto the paper - the part will eventually fail under moderate printing workflow conditions in time - I
believe it is rated for ~12,000 pages maximum, but most customers only see half of that, on average).
http://inkjet411.com/?page_id=2054
Please let us know if you have any questions regarding the technical information provided. For any
additional questions please contact us directly: [e-mail]
-Thank you
HP 02 OVERALL PERFORMANCE CONCERNS – INK MONITORING / POTENTIAL PRINTER DAMAGE
Regarding your recent inquiry about the HP 02 cartridge ink expiration (ink level monitoring) and ink
formulation/potential printer damage concerns, allow me to answer your questions in two parts:
A. With respect to ink level monitoring, Costco physically replaced the smart chips on each HP 02
cartridge/tank that you took in for refill...so the ink counting should be fairly accurate. However,
depending on the HP printer model, the firmware can sometimes begin flagging 'ink low/warning'
messages as soon 1/3rd of the ink has been used - most manufacturer inkjet printer models wait until
the tank is 70-80% empty. Also, with HP 02 ink refills, you have up to 1 year to install and use.
B. With respect to ink formulation and potential damage to your built-in printhead. As far as ink color
matching, customer feedback to date has been extremely favorable. The Costco HP inks are closel y
matched across several manufacturers/platform lines and provide satisfactory color performance from
in-house testing performed. While not an 'exact' chemistry/color match to the HP 02 colorants, they