Olivetti PR2 PLUS, Руководство по обслуживанию, Страница: 109 / 172

XZAC4219-05 Service Manual
6-5
Adjusting the print bar (where torsion bar absent)
•
MACHINE STATUS
–
Printer switched off and without casing.
–
Printhead positioned co-axially with the axis of the screw used to make the adjustment.
•
CONDITIONS TO BE CHECKED
Distance of 0.4 - 0.5 mm between print bar
(2) and feeler roller (3) .
•
PROCEDURE
–
Disassemble the mechanical unit. See the section “Mechanical assy disassembly/reassembly” on page 7 - 6 .
–
Bring the print unit to the writing position; then, using the four screws (1) , adjust the print bar (2) in contact
with the feeler roller (3) , positioning the head (4) in axis with the screw.
–
Lift the print unit and move the print bar (2) up by 0.35 - 0.45 mm, operating on the two screws (1) and
checking movement with a comparator (5) positioned on the axis of the screw.
–
Repeat the operation on the other two screws, from the opposite side of the structure.
Figure 6 - 4 Adjusting the print bar
NOTE: check the print quality with OFF-LINE testing. See the section “Activating and deactivating the print
test” on page 2 - 10 .
1
2
2
2
3
1
1
4
5
1 1 1