Replacing The Platen And Media Sensor - TEC CB-416 Series Maintenance Manual

2. MAIN UNIT REPLACEMENT

2.11 REPLACING THE PLATEN AND MEDIA SENSOR

CAUTION:
NEVER remove the red screws. Doing so will change the adjustment.
1) Lift all the print head mechanism and turn the media sensor positioning knob so that the detection
point of the media sensor is positioned at the center.
2) Remove the two B-4x6 screws to detach the front cover.
3) Turn the pinch roller lever to the RELEASE position to open the pinch roller unit.
4) Remove the SMW-3x20 screw to detach the pinch roller lever.
5) Remove the four guide plates.
Print Head Mechanism
Guide Plate
Front Cover
6) Loosen the three SMW-3x10 screws securing the under guide plate, remove the eight SMW-3x10,
nine SMW-4x8 and one SMW-3x6 screws to detach the under guide plate and the platen frame.
7) Remove the washer and two platen holders to detach the platen.
8) Disconnect the cable from CN10 on the driver PC board, cut the cable band binding the media sensor
cable, remove the knob and detach the media sensor.
SMW-3x10 Screw
FLOIL G-488
Platen
Washer
Platen Holder
Red Screw
(Never remove it)
Nylon Washer
B-4x6 Screw
Under Guide Plate
Media Sensor
Platen Frame
2-13
2.11 REPLACING THE PLATEN AND MEDIA SENSOR
Pinch Roller Ass'y
Knob
SMW-3x20 Screw
Pinch Roller Lever
Connector (CN10)
Cable Band
Knob
SMW-4x8 Screw
SMW-3x10 Screw
SMW-4x8 Screw
EO18-33002A
Fig. 2-15
Driver PC Board
SMW-3x6 Screw
SMW-4x8 Screw
SMW-3x10 Screw
Fig. 2-16