Technical information

115

A. Ensure BOTH carriage/flex cables and BOTH ink cartridge contacts are thoroughly clean before

proceeding: http://inkjet411.com/?page_id=1519

B. Print the ‘Tap 41/43’ Cartridge Health Diagnostics Test Report:

1. Depress BOTH arrow keys simultaneously.

2. Press the Left arrow key.

3. Select the OK key.

4. Press the Right arrow key. The "Underware" menu should be displayed.

5. Press the right arrow key until the ‘print-mech button tap’ menu is displayed.

6. Select Ok (Code = 0 will be displayed); click and hold Right Arrow until code = 41’ is displayed.

Use the Left Arrow if you need to decrease numerical count.

7. Select Ok. Within one minute the Tap 41 diagnostic test pattern should be initiated and print

(whether ink cartridges are good or not, i.e. this is a forced print test). Refer to 2nd video at

following link on how to interpret the diagnostic test report:

http://inkjet411.com/?page_id=1741

NOTE: If a ccess code '41' does not yield a test print, then try and enter "code = 43").

--- 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 2

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").

B. Print Self-Test Page:

1. Ensure letter size paper is loaded.

2. Press Setup until Print Report appears on the display.

3. Select OK.

4. Press OK again. The self-test page should attempt to print.

-- 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