Oki IP-6620 Maintenance Manual page 503

4.
Loosen the three screws securing the
CASE-HEAD-MW-ASSY.
To turn the print head in the clockwise
direction, rotate the PIN ADJUST
(HEAD)-MW inserted in the hole for
inclination adjustment in the clockwise
direction.
To turn the head in the counter clockwise
direction, rotate the pin in the counter
clockwise direction.
Note
PIN ADJUST (HEAD)-MW's one turn
corresponds approximately to the print head's
inclination by one dot.
When doing so, push the
HEAD-CASE-ASSY with your hands in
the direction you want to incline it.
Print a print head slant check pattern to
check the position and repeat the
procedure until no problem is found.
Note
Do not loosen the four screws fixing the print
head.
5.
Tighten the three screws securing the
CASE-HEAD-MW-ASSY.
6.
Remove the PIN(ADJUST HEAD)-MW
installed in step 3.
Install the parts removed in steps 1 and 2.
Note
Always adjust the wiping position after
adjusting the print head inclination.
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OKI Data Infotech Corporation CONFIDENTIAL
Chapter 7 Adjustment