HP (Hewlett-Packard) FB910 Printer User Manual


 
4-14 Manual Calibrations
Use a printer’s loupe to select the pattern, since the lines in
the patterns may be difficult to see.
6. Press the , or ) control panel keys repeatedly until the
number next to the pattern that is closest to aligned perfectly
is displayed.
For example, if pattern +2.0 is the closest aligned, press the
, key to change the display to:
Bidi registration
Head 1: +2
If a printhead is extremely out of alignment, there may be no
pattern in alignment. Since the black vertical bars are nomi-
nally five pixels apart, you can add +5 or -5 to a pattern num-
ber to shift the colored bars right or left by one black bar.
Alternatively, you can perform the BiDi Registration repeat-
Fig. 4-3. BiDi Registration pattern