ER-A310 (serv.man18). ROM Change - Sharp ECR Technical Bulletin (repair manual). Page 3

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Vertical dislocation of types in the
position SP4 or double printing
with other letters may happen.
2) Type pattern
(Printed examples)
PL 001   1
23 (normal)
PL
001   1
23 PL is dislocated upward.
PL
123   4
56 PL is dislocated upward 
0
and the letter marked with 
(A) is printed twice. 
(A)
3/3
3) Adjusting position of the back stop claw
The size shown below should be set more than 1.2mm.
             (The best value is 1.5mm
±
0.1mm.)
More than 1.2mm
(The best value)
1.5mm
±
0.1mm
Back stop claw
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