MUTOH ValueJet Service Manual page 300

3. Check that the carriage can pass through a gap above the 1.1mm part of the PG height checking jig and
cannot pass through a gap above the 1.3mm part.
4. Reverse the direction of the jig and move the carriage from the opposite side of the origin.
5. If the result of step 3 is NG, readjust the PG height by moving two height adjust cams on both left and
right of carriage.
• To raise the head height: Rotate cam upward.
• To lower the head height: Rotate cam downward.
No.
1
2
NOTE
The left and right cam changes the height separately. Make sure that follow the steps 3 to 4 and check
both left and right of the head height is proper by using PG height checking jig.
6. Apply adhesion bond to the height adjustment cam and fix the height.
AP-74109 Rev 1.1
Left view
Height adjustment cam
Carriage
ValueJet 1304 Service manual
No.
PG height checking jig
1
Head
2
1
2
Part name
7-44
Part name
Right view