DisplayMaker Legacy 72SI and 98SI - User Manual

Manual Calibrations 4-11
Manual BiDi Registration Bidirectional registration is a method to align each of the print-
heads so that dot placement is accurate in both directions along
the X axis (along the direction of printhead travel).
The bidirectional registration pattern consists of a series of verti-
cal lines. Half the pixels in this pattern are printed in one direc-
tion, half of them in the other direction. When the pixels are
accurately aligned, the pattern is clear. When the dots are not
aligned, the pattern appears fuzzy and ill-defined.
Note
AutoBiDi Calibration is the automatic version of this
calibration. Try AutoBiDi first before running this
manual calibration (see “Auto Calibrations” on
page 4-20 for details).
1. On the Manual Calibrations menu, press the ) key repeat-
edly to highlight Manual BiDi Registration.
2. Press the  (Menu In) key to select the option.
3. Press ! (Proceed).
The control panel displays this prompt:
Print a manual bidi registration page?
4. Press ! (Proceed).
The printer prints the calibration pattern you selected.
5. When the calibration page has printed, the control panel dis-
plays this prompt:
Bidi registration
Head 1: 0
6. Examine the BiDi Registration pattern for the current head,
and determine which pattern is the closest to perfectly
aligned.