Technical information

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1. Open the printer/cover as if replacing the cartridge and allow the carriage assembly to move to

the cartridges access/loading position.

2. Unplug the power cable from the rear of printer and close the printer’s cover.

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 pri nter to fully initialize (may

take ~5 minutes for the message/error condition to disappear).

NOTE: If ink cartridge error persists then replace ink cartridge.

3) Verify HP 15 ink cartridge’s electrical health. To check ink cartridge's electrical health, please activate

the Printer Diagnostic test (HP Deskjet 842c):

1. Turn the printer on.

2. Press and hold the POWER button.

3. Press the RESUME button four times.

4. Release the POWER button.

3) 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

4) Verify the cartridge’s warranty expiration date (imprinted on front of ink cartridge) to see if it still

covered under warranty. If out of warranty, then the cartridge has a significantly higher chance of failure

due to age and internal microelectronic corrosion.

http://h10025.www1.hp.com/ewfrf/wc/document?docname=c00206040&tmp_task=prodinfoCategory

&lc=en&dlc=en&cc=us&lang=en

*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. The “Incompatible Cartridge(s)",

“Print Cartridge(s) Problem", “Incorrect Print Cartridge at least one of the print cartridges currently

installed is not intended for use in this printer”, “Check and Remove Cartridge”, error message is

typically indicative of failed micro-electronics internal to the ink cartridge(s). As well, it is common to

have a marginally performing ink cartridge (which was performing ok before) in the adjacent slot (i.e.

color), then when a marginally performing cartridge is installed into the other slot (i.e. black), both of

the ink cartridge(s) then get flagged with electrical errors.

For reference, the following page provides a complete review of the majority of cartridge error

messages you may observe on your printer at one point or another:

http://inkjet411.com/?page_id=1802

Please note this type of failure is quite rare with an ink cartridge that that has only been refilled once or

twice.