Technical information

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2. Press the * and # keys simultaneously.
3. Enter 123 (or 124) at keypad. The ‘Support xxxxxxxx’ menu should be displayed.
4. Use the arrow keys to navigate to the Reports Menu. Select Ok.
5. Use the arrow keys to navigate to the 'print-mech button tap' menu.
7. Select Ok. Screen should display “code = 0”.
8. Use the arrow keys to enter “code = 43” (or just enter 43 on keypad). Select Ok. The Tap 43
diagnostic test pattern prints.
NOTE 1: On newer printer models you may need to input ‘code = 41’.
NOTE 2: The Tap 10 self-test print (or extended self-test) also be initiated via ‘code = 10’ (use to
verify color output and general ink nozzle performance)
9. Check the 4th line at the top of the printed report; an electrically good/stable PRINTHEAD will
state “Pen Status: Pen OK”………if any other message is displayed then the PRINTHEAD may have failed
and may need to be replaced.
9. Re-seat the PRINTHEAD and repeat ‘Tap 43’ test to verify connectivity is not the issue. Refer to
HP.com for PRINTHEAD removal procedures or general instructions here:
http://inkjet411.com/?page_id=1495
*The HP 564 ink-series printer models have an electronic PRINTHEAD within the base of the carriage
assembly [responsible for pulling ink from the 4 (or 5) ink cartridges and then firing the ink droplets onto
the paper] – this assembly will eventually fail depending on printed content, frequency of printing and
printer duty cycle (i.e. HP rates them with a duty cycle of "up to 1000 pages a month", which translated
is ~12,000 printed pages maximum over life, but the typical/average life is closer to ~5000 pages).
http://inkjet411.com/?page_id=2054
*The HP 920 ink-series printer models have an electronic PRINTHEAD within the base of the carriage
assembly (responsible for pulling ink from the 4 ink cartridges and then firing the ink droplets onto the
paper) – these will eventually fail depending on printed content, frequency of printing and printer duty
cycle (i.e. HP rates them with a duty cycle of "up to 1000 pages a month", which translated is ~15,000
printed pages maximum over life, but the typical/average life is closer to ~8,000 pages).
http://inkjet411.com/?page_id=2054
For any additional questions please contact us directly: [e-mail]
-Thank you
HP 564 PRINTHEAD FAILURE (“INCOMPATIBLE PRINTHEAD”)
Regarding your recent inquiry about the HP 564 ink-series printer system error message ("Incompatible
Printhead") associated with your HP Photosmart Premium C309a printer, this is either an electrical
connectivity issue (between Printhead and Carriage Assembly) or an internal electrical failure of the
PRINTHEAD assembly*. The issue may be recoverable by performing the following steps: