2-132. MAIN UNIT REPLACEMENT EO18-33002A2.11 REPLACING THE PLATEN AND MEDIA SENSORCAUTION: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 detectionpoint 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.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 sensorcable, remove the knob and detach the media sensor.2.11 REPLACING THE PLATEN AND MEDIA SENSORFig. 2-15Fig. 2-16Pinch Roller Ass'yKnobSMW-3x20 ScrewPinch Roller LeverNylon WasherB-4x6 ScrewFront CoverGuide PlatePrint Head MechanismConnector (CN10)Driver PC BoardCable BandKnob SMW-3x6 ScrewSMW-4x8 ScrewSMW-3x10 ScrewSMW-4x8 ScrewSMW-3x10 ScrewSMW-4x8 ScrewPlaten FrameRed Screw(Never remove it)PlatenFLOIL G-488Platen HolderSMW-3x10 Screw WasherUnder Guide PlateMedia Sensor