Technical information

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3. While depressing the power button, plug in the power cable. Keep the power button pressed for
about 10-15 seconds, allowing the error flag to reset.
4. After printer powers on, cycle printer power once again and allow printer to fully initialize (may
take ~5 minutes for the message/error condition to disappear).
NOTE: If ink cartridge error persists then replace ink cartridge.
If procedure above does not work, then refer to HP.com to print a HP Self-Test Report (older HP printer
models) – click here for instructions & sample prints:
http://h10025.www1.hp.com/ewfrf/wc/document?cc=us&lc=en&dlc=en&docname=bpu00734
*Many cartridges eventually do encounter problems or failures, especially after their original ink is gone
and they are re-used, and this is often unrelated to the refill process. Typically the ink cartridge's nozzle
plate suffers a break at one of the flexible circuit lines within the base of the cartridge nozzle
plate...refer to photo at bottom of this page: http://inkjet411.com/?page_id=509
However, if your printer works routinely after inserting a brand new HP15 black ink cartridge in it, you
should discuss the possibility of a refund with your local Costco (for the refilled cartridge purchase). We
regret your inconvenience, and we hope that you will continue to consider the compelling value of inkjet
refilling in the future.
We trust this detailed technical information provides you some additional insight into the issue you have
endured.
For any additional questions please contact us directly: [e-mail]
-Thank you
HP PS C4200-C4500 & C5200-C5500 ERROR MESSAGES - NOT RECOGNIZING CARTRIDGE (74-75)
NOTE: For purposes of our communication please note that the HP 350/351 UK cartridges are the same
as the HP 74/75 USA versions; all the features and functions discussed below will work on your printer as
the printer platforms are identical.
Regarding your recent inquiry about the HP 75XL Tri-color cartridge error message ("cartridge in slot on
left is not intended for use in this printer. Remove and replace") and inability to print with your HP PS
C5550 printer, this type of error is normally associated to an electrical connection issue between the
printer and the cartridge, or more likely, an internal micro-electronic failure inside the cartridge itself.
An electronic failure of the cartridge would be unrelated to the ink cartridge refill process; these same
failures can (and frequently do!) occur with brand new ink cartridges and normally occur over time due
to natural degradation of the internal micro-electronics.* To help identify the root cause, and to confirm
which of the two ink cartridges is causing the failure condition, please run the 'Tap 41' cartridge's
electrical diagnostic test below (refer to PROCEDURE C.)