Epson TM-U950 Technical Manual page 55

CONFIDENTIAL
Immediately before the journal and receipt paper feed motors are driven, the carriage motor is
activated and positions the carriage in the center of the paper width. After passing the paper
feed rollers, the paper lifts the pawl of the auxiliary paper guide and thereby closes the guide.
Therefore the paper from the paper roll cannot be advanced to the paper feed rollers merely by
manual operation.
Paper feed operation
The paper feed roller at the upper paper guide is linked with the paper holder roller at constant
pressure, and paper on the paper roll is fed in from the paper feed roller. The paper feed roller
shaft in the paper feed roller assembly is equipped with a gear that is driven by the journal
paper feed motor via the J/S switching gear, paper feed reduction gear, paper feed transmission
gear, and journal transmission gear.
By driving the journal paper feed motor as described above, the journal-side paper feed roller
turns and advances the paper by a predetermined amount. For receipt side, the paper feed gear
is driven by the receipt paper feed motor via the paper feed reduction gear, paper feed
transmission gear, and receipt transmission gear. By the operation above, the receipt-side paper
feed roller turns and advances the paper by a predetermined amount.
2-10 Mechanism Configuration and Operating Principles
Figure 2-17. Paper Roll Insertion
Rev. A