Olympus OEP-3 Service Manual page 156

5-1-1. Motors
There are six motors in total for driving the printer. In addition, there are two motors for cooling the
thermal head, and one for cooling the printed circuit board. Also, the switching regulator has one fan
motor for cooling itself.
1 Head motor (DC motor) (forward and reverse)
. Drives the head vertically.
. Drives the platen chuck link.
2 Platen motor (stepping motor) (forward and reverse)
. Drives the platen.
. Opens and closes the chuck (synchronized with platen rotation).
3 Paper feed motor (DC motor) (forward and reverse)
. Drives the pickup roller.
. Drives the paper feed roller and separation roller.
. Drives the paper remove roller and paper remove lead roller.
4 Tray motor (DC motor) (forward and reverse)
. Moves the separation roller.
. Drives the paper lead flap and paper remove flap.
. Drives the paper feed lever.
. Drives the paper remove arm.
. Paper sensor arm is secured.
5 Ribbon take-up motor (DC motor) (forward and reverse)
. Winds up the ribbon.
. Controls ribbon tension.
6 Ribbon supply motor (DC motor) (forward and reverse)
. Rewinds and takes up ribbon slack.
. Controls tension.
7 Head cooling fan motor (forward only)
. Cools the thermal head during printing and prevents overheating.
8 Printed circuit board cooling fan motor (forward only)
. Cools the SE-539 board in synchronization with head fan motor.
5-2
OEP-3 V1 (UC)