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4-14 Manual Jet Mapping
Manual Jet Mapping
Each of the ink cartridges used by the printer includes a print
head with over two hundred and forty ink jet nozzles (jets). If
any one of these jets is clogged or has a bad electrical connec-
tion, print quality may be affected. A certain number of non-fir-
ing jets is within the performance specifications of most printers
that use this technology.
Note
For best results, before performing this procedure,
clean the print heads as described in “Cleaning Ink
Jets” on page 3-11.
Using a patent-pending technique, the printer “fills in” the pix-
els that were not printed by the non-firing jets, without reducing
print speed. The end result is that every print is made with no
missing pixels.
The printer automatically maps out missing jets that are not fir-
ing for electrical reasons. Jets that are missing or misfiring for
other reasons are usually detected during the AutoSet or AutoJet
calibrations. You may also map jets manually using the follow-
ing procedure.
To report missing jets:
1. Press
a
(Options) on the control panel to display the menus.
2. Press the
c
key to highlight the Calibrate Printer option.
3. Press
e
(Menu Select) to display the Calibrate Printer menu.
4. Press the
c
key repeatedly to highlight the EXPERT SETTINGS
option.
5. Press
f
(Proceed) to display the EXPERT SETTINGS menu.
6. Press the
c
key repeatedly to highlight the Manual Jet Map-
ping option.
7. Press
e
(Menu Select).
The control panel displays this message:
Print a jet test
page now?
8. Press
f
(Proceed).
The printer prints a jet test page. When the calibration page
has printed, the control panel displays a Map Jets Out menu
with these options:
Autodetected missing jets (marked
with an E) sometimes can be recovered
by carefully wiping the electrical con-
tacts on the cartridge and their corre-
sponding contacts on the print head
carriage with a lint-free wipe moist-
ened with plain water.