Toshiba e-STUDIO190F, Service Manual

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6.3.6. Paper Ejection and Paper Switchback
A. Normal Printing Mode (Not Duplex Mode)
After fusing, paper is fed to the Output Tray by the Upper Exit Roller and Upper Exit Pinch Roller. The Paper
Exit/ADU Paper Jam Sensor detects paper. If paper does not arrive at the sensor within a predetermined
period of time, “Jam at A” is displayed, and if paper remains at the sensor beyond a predetermined period,
“Jam at B” is displayed on the computer screen. Paper is ejected face down and stored in the Output Tray.
B. Duplex Mode
After fusing, paper is fed to the Output Tray by the Upper Exit Roller and Upper Exit Pinch Roller. The Paper
Exit/ADU Paper Jam Sensor detects paper. If paper does not arrive at the sensor within a predetermined
period of time, “Jam at A” is displayed on the computer screen. At the specified time after the sensor
detects the bottom of paper, the Upper Exit Roller rotates in reverse direction, turning on the Exit Solenoid
to move the Ratchet Lever to Duplex Position. As a result, the paper is fed to the development area through
the Auto Duplex Unit (ADU). If paper remains at the sensor beyond a predetermined period, “Jam at E” is
displayed. Paper is ejected face down and stored in the Output Tray.