Print Head Gap Adjustment - Fujitsu ULTIMA90 Maintenance Manual

4.9.2 Adjustment

(1) Print head gap adjustment

Note:
This adjustment needs the head gap adjustment jig (special dial gage), so this part is parts that must not be
disassembled. If you don't have head gap adjustment jig, don't adjust this portion as much as possible.
Procedure
1. Attach the head gap adjustment jig on the carriage.
2 . If necessary open the upper guide F open.
3 . Move the card guide upper side.
Dire ction of moving
card guide
4. Rotate the SS gear (located at the left side of the stay shaft) clockwise (this direction makes the head gap
narrow) until its stopper touches the stopper of the side frame.
Platen
Figure 4.86 Attach the print head gap jig
SS gear
Figure 4.87 Rotate SS gear
102
Head gap adjustment jig
Card guide
Stopper of SS gear
Stopper
Upper guide F