Technical information

113
113
--- A good HP 93/95/97/99 color cartridge should display 600 good nozzles, while a good HP
92/94/96/98 black ink cartridge should show 672 good nozzles. If the results yield anything different
then the ink cartridge is likely damaged and will need to be replaced. Refer to 2nd video on how to read
the printout: http://inkjet411.com/?page_id=1741
---- If the printer attempts to print the diagnostic test pattern (1 page) then the printer is generally
considered operational and functional, if nothing is printed, but the printer attempts to print the
pattern, then the tri-color ink cartridge is either empty, clogged or severely electrically damaged (black
ink cartridge is not used). You can remove the tri-color cartridge, reactivate the tap 41 test and the
printer will print the diagnostic test print in black ink (special "ink back-up mode").
C. Print Self-Test Page (varies by printer model – attempt Procedures A thru C below):
Procedure A:
1. Press and hold the CANCEL button.
2. Press the COLOR COPY button. Release both buttons.
3. The self test prints. The printed pattern will verify printer is generally functional. Inspect color
bars to verify proper nozzle/jetting health.
Procedure B:
1. Press the Setup button, select Print Report and select Self-Test Report
Procedure C:
1. Make sure the printer is on and loaded with unused, plain, white paper.
2. Press Setup. The Setup Menu appears.
3. Press the Down-arrow button to select the Print Report Menu, and then press OK. The Self-Test
Report option displays.
4. Press OK to print the self-test report.
5. Evaluate test pattern. The color stair-step patterns at top-left are printed by the color cartridge.
The black stair-step pattern at top-right is printed by the black cartridge.
-- If the Self Test Page prints ok then the printer is functioning correctly and the problem is with the ink
cartridges - replace the suspect ink cartridge and retest. Refer to 2nd video procedure at the following
link on how to read the Tap 10 test (NOTE: the HP 74/75 cartridges are electrically identical to the HP 92
thru 98 cartridges): http://inkjet411.com/?page_id=579
Cartridge Error Bypass (procedure has not been validated): [PSC 2335 thru 2710]
1. Press * and # keys at same time.
2. You will see the following message "Enter special key combo", then
3. Enter "123" (or 124)
4. Using left/right arrow keys, navigate to Special Reports. Select OK/Enter.
5. Press the right arrow until you find "Print Cartridges", click OK
If there is a print job in the queue, it may begin printing. Results will vary depending on severity of
cartridge’s electrical state.