Toshiba 4560 Service Manual page 83

7.7.6 Automatic paper-size detector
(1) Remove the original glass.
(2) Remove the 3-beam sensor (2 screws, 1 con-
nector).
(3) Remove the reflecting photosensors (1 screw,
1 connector).
7.7.7 Exposure lamp and thermal fuse
(1) Remove the original glass and the rear top cover.
(2) Move the carriage 1 to the position that the lamp
terminal is visible.
(3) Remove the exposure lamp while bending the
power supply blade. Attention should be paid
so as not to touch the lamp surface. (It may
lead to uneven exposure.)
Note: During installation, position the lamp so that
theTOSHIBA mark faces to the front. Moreover,
the projection on the exposure lamp should
face to the exit side.
Exit side
Projection
(4) To replace the thermofuse, remove the 2
screws.
Nov. 1997 © TOSHIBA
Lamp
Reflector
7 - 21
Reflecting photosensor
3-beam sensor
[A4 series]
3 beam sensor
[LT series]
Thermal fuse
[Front side]
Reflecting photosensor
Reflecting photosensor
Exposure lamp
[Rear side]
4560/4570 OPTICAL