Technical information

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2) There could be an air bubble in the printer ink lines, so you should perform a "Clean PrintHead"
procedure (I suggest Level 2 'Deep Clean' if available in your printer's control panel); you may also print
one of our 'heavier' 4-color test prints from our Test Prints page, there is a link from our main page:
http://www.inkjet411.com/
3) Clean service station wipers/pad.
3) 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). http://inkjet411.com/?page_id=2054
HP 920 support page:
http://inkjet411.com/?page_id=856
If that does not fix the problem, you should return the cartridges to the Costco Photo Department to get
them refilled (they will perform a full ink evacuation and refill, so the cyan ink will be 'effectively' new).
For any additional questions please contact us directly: [e-mail]
-Thank you
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Regarding your inquiry of the Canon CLI-8 ink cartridges and the observed color shift in your Canon 9000
Pro Mark II printer, the Costco refill inks are closely matched to the Canon OEM inks and provide
satisfactory color performance from in-house testing performed (at least in all A4 printers evaluated).
While not an exact color formulation match to the Canon CLI-8 CMYK inks, they have been tested for
general color appeal and comparison performance - passing all quality performance expectations in A4
printers.
However, since you are using a B-Size printer, and effectively merging 4 refill ink colors (CMYK) with the
4 OEM inks (LcLmRG), color stability can shift slightly. The only way to overcome this is to re -profile for
the new color set (i.e. using a grey color balance target and each type of photo media).
REFERENCE: Canon 9000 Pro Mark II printer Ink Spec Page:
http://www.usa.canon.com/cusa/consumer/products/printers_multifunction/professional_photo_inkje
t_printers/pixma_pro9000_mark_ii#SuppliesAndAccessories
Now, as far a general color print performance, there are other things which could be causing the color
shift issue you are seeing.....several items to verify:
1) Run a self test print (under tools/maintenance menu) to ensure all ink nozzles are firing.
2) If self-test has poor print quality (streaking/missing colors, etc.), there could be an air bubble between
one of the ink cartridges and printhead, so you should perform a "Head Cleaning" / "Cleaning"
procedure in your printer's control panel.