DH90 Printhead Startup Summary - Kodak

5. When the printhead reaches the Step Forward state,
inspect the jets, and use one of the following steps:
• If you do not observe any crooked jets, allow
STEPREADY to continue. Go to step 14.
• If you observe crooked jets, repeat step 2 through
step 5.
• If you have repeated the swabbing and you still
observe crooked jets, go to step 6.
6. Saturate a swab with KODAK VERSAMARK FR1042
Replenisher Fluid (part 6091042).
7. Select CLEAN.
8. For the 25 seconds before
the ink weep step, swab at
the area where the crooked
jets were observed.
Note: Never squirt fluid
directly into the
orifice plate or
charge plate area,
but onto the swab.
9. After the Printhead Clean
sequence is complete, select STEP TO READY.
10. When the printhead reaches the Step Forward state,
inspect the jets, and use one of the following steps:
• If you do not observe any crooked jets, allow
STEPREADY to continue. Go to step 14.
• If you observe crooked jets, repeat step 6 through
step 10.
• If you observe crooked jets after repeating these
steps and you have time, go to step 11.
11. Select SHUTDOWN, and allow the printhead to complete
the Shutdown sequence.
12. Select STEP TO READY.
13. When the printhead reaches the Step Forward state,
observe the jets, and use one of the following steps:
• If you do not observe any crooked jets, allow
STEPREADY to continue. Go to step 14.
• If you observe crooked jets, replace the printhead.
14. Select STEP UP, wait two seconds, and select STEP UP
again. The sequence will continue bringing the printhead
to READY state.
15. When the Printhead status displays "Finished" with a
green background, clean the inside of the eyelid with a
swab moistened with replenisher.
• Saturate the swab with replenisher.
• Use a swab for one wipe across the full length, then
reverse the swab for another wipe.
• Do not reuse a swab for a third wipe.
• Use several swabs until the swab is left relatively
clean.
16. Select CLOSE EYELID.
• If a charge short occurs when closing the eyelid, go
to “Charge Short Recovery During Operations”.
17. Remove the catchpan.
18. Remove the wicking pad, if one is applied.
19. Moisten a lint-free cloth or towel with replenisher, and
clean the bottom of the printhead. Wipe several times,
using a clean area of the towel, until the towel is
relatively clean.
Note: Always wipe across the width, at an angle away
from the eyelid seal. This avoids pushing debris
and fibers into the closed eyelid. Debris in the
eyelid can cause print defects.
20. Apply a fresh wicking pad.
21. Move the printhead to print position, and resume printing
the job.
Charge Short Recovery During Operations
If any printhead develops a charge short when printing is
stopped and the eyelid closes or when the printhead is idle
but in READY state, use the following procedure to swab the
ends of the charge plate.
1. At the PSI details screen, select ACK ERROR. The
autorecovery cycle continues.
• The system begins an autorecovery to bring the
printhead to READY.
• If the autorecovery succeeds, continue with printing
activities.
• If another charge short develops, acknowledge the
error and continue with step 2.
2. If the printhead is in print position, move the printhead to
service position.
3. Wet the catchpan o-ring with replenisher and install the
catchpan.
4. From the work area, select CLEAN, and allow the
sequence to complete. The Time remaining field will
display “Finished.”
5. Select SERVICE EYELID.
6. Select STEP TO READY.
7. Wait until the Printhead status field displays “Step
forward,” and the ink jets are flowing into the catchpan.
8. Wet a swab with
replenisher, and swab
the charge plate at the
far left end, outside of
the two-wire connection.
9. Wet a second swab, and
swab the charge plate at
the far right end.