Oki 4M - Manual (Page 27)

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Rotate the pulse motor (main) in the a direction. The planetary gear rotates in the a’ direction,
dislocating its position in the a” direction. This causes the planetary gear to be separated from
gear A. The hopping gear will not rotate. The triple gear and transfer gear rotate via the idle
gear to drive the EP unit.
At printing
(2) Printing and warm-up
At warm-up
The paper is further advanced in synchronization to the print data.
Transfer gear
Resist gear
Hopping gear
Gear A
Pulse motor (main)
a"
a'
a
Idle gear
Planetary gear
Triple gear
Transfer gear
Idle gear
Planetary gear
Pulse motor (main)
Gear A
Hopping gear
Resist gear
b"
b'
b
Triple gear