Replacing The Media Sensors - TEC B-680 SERIES Maintenance Manual

2. MAJOR UNIT REPLACEMENT
2.8 REPLACING THE MEDIA SENSOR
CAUTION:
1. When using the fixed sensor, line up the feed gap sensors between the upper and lower sensors.
2 When shipped from the factory, the black mark sensor is positioned at the center of the effective
print area and the feed gap sensor is located 10 mm left of center as viewed from the front.
1) Detach the 4 connectors from the fixed/movable media sensors.
2) Remove the two screws (FL-3 x 4) and the sensor holder to detach the media sensor unit.
3) Turn the knob of the sensor shaft clockwise and remove the movable media sensor.
4) Remove the E-ring (E-3) from the sensor shaft and detach the lower fixed media sensor.
5) Remove the white screw to detach the media guide plate.
6) Remove the two SM-3 x 6B screws, then unclamp and detach the upper fixed media sensor.
Screw (SM-3 x 6B)
Media Guide Plate
White Screw
7) Replace the fixed/movable media sensors and reassemble in the reverse order of removal.
Knob
Fixed Media Sensor
Connecter
Upper Fixed Media Sensor
Clamp
Media Sensor Unit
E-ring (E-3)
Movable Media Sensor
Connecter
2-9
EO18-33006
2.8 REPLACING THE MEDIA SENSOR
Media Guide Plate
Screw (FL-3x4)
Fig. 2-14
B
Fig. 2-15