HP Scitex FB750 User Guide - Page 58

Automatic calibrations, Manual calibrations, Calibrate, Media Feed Calibration

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NOTE: The AutoJet calibration requires that the printheads are in correct alignment. If AutoJet maps out a large number of jets even though there are no obvious jetting problems, the printhead Y calibration (a factory calibration) may need to be performed again. In this case, contact HP or your authorized service provider. Automatic calibrations The printer's piezo printheads are aligned by the installer. Head and bidirectional calibrations should be necessary only rarely (for example, when the heads have been moved within the carriage or replaced). 1. Press Calibrate from the Printing page, then press Auto Calibrations in the menu. 2. Select one of the Auto Calibrations. ● AutoBiDi (bidirectional) Calibration - Ensures that every working jet fires at precisely the same location (regardless of the carriage direction of travel). ● Auto Head X (head-to-head) Calibration - Ensures that the printheads are in alignment relative to each other. ● AutoJet Calibration - Locates and substitutes missing jets for working jets (see AutoJet on page 50). ● Full AutoSet - Runs all three calibrations in sequence. The printer prints a test pattern then reads it and makes the necessary adjustments or jet substitutions. After completing the calibrations, a report is printed that shows: ◦ Calibration results - A summary such as SUCCESSFUL CALIBRATION or an error message ◦ Header showing the date and time, software version, and printer type ◦ Calibration detail - The calibration data for each head. The AutoJet detail reports how many jets were mapped out by AutoJet, how many are permanently mapped out by the operator, and whether the head is usable (from a jetout standpoint) in the various print modes. The higher quality modes use jet replacement, so they can print successfully with a greater number of jets out than Billboard mode. ● AutoSet Summary - When enabled, a table of the results of the Full AutoSet calibration is printed after the AutoSet test patterns. When you enable the AutoSet Summary, you can show or hide the detailed calibration data. Manual calibrations When you run the calibrations from this menu, you evaluate the calibration test patterns visually and enter the calibration values via the control panel. ▲ Press Calibrate from the Printing page, then press Manual Calibrations in the menu. The Manual Calibration menu consists of these options: ● Media Feed Calibration - Calibrates the media advance accuracy for band-free printing. Visual and (for rigid media only) camera-assisted calibrations are available. ● Manual BiDi Registration - The manual version of AutoBiDi Calibration. ● Printhead X Calibration - The manual version of Auto Head X Calibration. ● Manual Jet Mapping - The manual version of AutoJet. ENWW Automatic calibrations 51

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NOTE:
The AutoJet calibration requires that the printheads are in correct alignment. If AutoJet maps out a
large number of jets even though there are no obvious jetting problems, the printhead Y calibration (a factory
calibration) may need to be performed again. In this case, contact HP or your authorized service provider.
Automatic calibrations
The printer’s piezo printheads are aligned by the installer. Head and bidirectional calibrations should be
necessary only rarely (for example, when the heads have been moved within the carriage or replaced).
1.
Press
Calibrate
from the Printing page, then press
Auto Calibrations
in the menu.
2.
Select one of the Auto Calibrations.
●
AutoBiDi (bidirectional) Calibration
—
Ensures that every working jet fires at precisely the same
location (regardless of the carriage direction of travel).
●
Auto Head X (head-to-head) Calibration
—
Ensures that the printheads are in alignment relative to
each other.
●
AutoJet Calibration
—
Locates and substitutes missing jets for working jets (see
AutoJet
on page
50
).
●
Full AutoSet
—
Runs all three calibrations in sequence. The printer prints a test pattern then reads
it and makes the necessary adjustments or jet substitutions. After completing the calibrations, a
report is printed that shows:
◦
Calibration results
—
A summary such as SUCCESSFUL CALIBRATION or an error message
◦
Header showing the date and time, software version, and printer type
◦
Calibration detail
—
The calibration data for each head. The AutoJet detail reports how many
jets were mapped out by AutoJet, how many are permanently mapped out by the operator,
and whether the head is usable (from a jetout standpoint) in the various print modes. The
higher quality modes use jet replacement, so they can print successfully with a greater
number of jets out than Billboard mode.
●
AutoSet Summary
—
When enabled, a table of the results of the Full AutoSet calibration is printed
after the AutoSet test patterns. When you enable the AutoSet Summary, you can show or hide the
detailed calibration data.
Manual calibrations
When you run the calibrations from this menu, you evaluate the calibration test patterns visually and enter
the calibration values via the control panel.
▲
Press
Calibrate
from the Printing page, then press
Manual Calibrations
in the menu.
The Manual Calibration menu consists of these options:
●
Media Feed Calibration
—
Calibrates the media advance accuracy for band-free printing. Visual
and (for rigid media only) camera-assisted calibrations are available.
●
Manual BiDi Registration
—
The manual version of AutoBiDi Calibration.
●
Printhead X Calibration
—
The manual version of Auto Head X Calibration.
●
Manual Jet Mapping
—
The manual version of AutoJet.
ENWW
Automatic calibrations
51