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Manual Calibrations 4-13
Manual Jet Mapping Each of the printheads used by the printer has 512 ink jet nozzles
(jets). If any one of these jets is clogged or has a bad electrical
connection, print quality may be affected. A certain number of
non-firing jets is within the performance specifications of most
printers that use this technology.
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.
Tip
AutoSet incorporates an automatic version of this
calibration. Try AutoSet first before running this
manual calibration (see “AutoSet” on page 4-2 for
details).
Tip
For best results, before performing this procedure,
clean the printhead jets as described in “Cleaning
Ink Jets” on page 5-3. Autodetected missing jets
sometimes can be recovered by carefully wiping the
electrical contacts on the printhead and their corre-
sponding contacts on the printhead carriage with a
lint-free wipe moistened with plain water.
1. Press the v (Menu) key from the Front Page screen on the
control panel to display the menus.
2. Press the E (Menu In) key display the Calibrate Printer
menu.
3. Press the p key to highlight Manual Calibration.
4. Press the E (Menu In) key.
5. Press the p key to highlight Manual Jet Mapping.
6. Press the E (Menu In) key to select the option.
The control panel displays this message:
Print Jet Map
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