The printer switches between face-up and face-down tray delivery with the face-up deflector. When the FACE-UP SOLENOID DRIVE signal (/FUSLD) becomes “L”, the face-up solenoid (SL3) moves the face-up deflector to the face-up tray and the paper is delivered through the face-up tray. If /FUSLD is “H”, the paper is delivered through the face-down tray on the top of the print- er.
The paper delivered through the face-down tray is detected by the face-down tray delivery sensor (PS1402). When the face-down tray becomes full, this is detected by the face-down tray paper full sensor (PS1401).