Toshiba 4560, Service Manual

Page: 84 / 369

4560/4570 OPTICAL 7 - 22 Nov. 1997 © TOSHIBA
7.7.8 Copy area indicator unit
(1) Remove the left top cover, the upper rear cover
and the control panel.
(2) Remove the transparent indicator cover (2
screws).
(3) Disconnect the document motor connector.
(4) To take out the document motor, disconnect a
connector and remove the 2 screws.
Remove the belt.
Note: To install the belt, place both indicators
against the bracket projection and set the
belt in the groove on the indicator.
Document
motor
Belt
7.7.9 Scanning motor
(1) Remove the rear cover and left top cover.
(2) Disconnect the connector. Remove 2 screws,
the tension spring, the wire drive belt, and the
scanning motor bracket.
Note: When installing;
1. Open the upper unit.
2. Hang the wire drive belt on the scanning
motor pulley.
3. Hook the tension spring on the copier’s
frame.
4. Hang the wire drive belt on the belt drive
pulley, and temporarily loosely tighten
screw B (Screw A is not installed yet).
Original width indicator unit
5. Make sure 2~3 times that the scanning
motor is returned to its previous position
by the tension spring even if the scan-
ning motor is rotated in the direction of
the arrow C.
6. At that position, while pressing the scan-
ning motor to the machine frame, tighten
the screw A (when tightening the screw
A, be careful not to move the scanning
motor).
7. Tighten the screw B.
Scanning motor Tension spring
Belt drive pulley Wire drive belt
B
A
C