HP (Hewlett-Packard) H45000 Printer User Manual


 
4-6 Auto Calibrations
Auto Calibrations The printer’s piezo printheads are aligned at the factory. Head
and bidirectional calibrations should be necessary only rarely
(for example, when the heads have been moved within the car-
riage or replaced).
1. Press the Calibrate key from the Front Page screen, 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).
AutoH2H (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. This is the same calibration per-
formed as when you press the AutoJet button on the
Front Page screen (see “AutoJet” on page 4-3).
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 calibration(s), a report is printed that
shows:
Calibration results — a summary such as SUCCESS-
FUL 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 (Production and
High Quality) use jet replacement, so they can print
successfully with a greater number of jets out than
can 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.