Olivetti PR2 PLUS, Service Manual, Page: 108 / 172

6-4 Service Manual
XZAC4219-05
Adjusting the print bar (where torsion bar present)
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MACHINE STATUS
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Printer switched off and without casing.
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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
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Disassemble the mechanical unit. See the section “Mechanical assy disassembly/reassembly” on page 7 - 6 .
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Bring the print unit to the writing position; then, using the two 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 screw (1) and checking
movement with a comparator (5) positioned on the axis of the screw.
–
Repeat the operation on the other screw, from the opposite side of the structure.
Figure 6 - 3 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
3
1
1
4
5