5-9
OEP-3 V1 (UC)
5-3. Platen Drive Unit
The platen motor drives the platen and opens the chuck.
The platen drive uses two TN10 type belts (belt pitch: 1 mm) to minimize print nonuniformity. If a belt
skip is caused by jamming or other reasons, the belt may be damaged. In such a case, replace the belt
with a new one.
5-3-1. Gear Ratio of Platen Drive Unit
5-3-2. Print Nonuniformity
If each pulley is damaged, paper is horizontally striped at certain intervals. In such a case, replace the
pulley with a new one.
Platen motor pulley: 12.6 mm pitch
Platen pulley: 33.9 mm pitch
Flange B: Always at the same place
81
x
= 13.5
Platen motor pulley
Platen pulley
30
150
30
Flange B
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