9.2.4 General operation

[A] From power-ON to ready status

(1)When the equipment is turned ON, the tray-up motor starts to rotate forward and the upper drawer tray starts to rise. When the tray has risen and the tray-up sensor is turned ON (L→H), the tray-up motor is turned OFF, then the tray stops to rising. At this time, if the empty sensor is OFF (L), it is judged that there is no paper in the drawer. If the empty sensor is ON (H), there is paper in the drawer. The tray stops at raised position regardless of the presence/absence of paper.

The tray-up motor then starts to rotate in reverse and the lower drawer tray starts to rise. The lower drawer tray is stopped in the same manner as the upper drawer tray, and the empty sensor detects if there is paper in the drawer.

(2)If the drawer is not completely inserted when the equipment is turned ON, the tray in that drawer does not rise. When the drawer is inserted completely, the tray is raised and checks the presence/absence of paper.

(3)If either of the feed sensors is ON (= there is paper on the transport path) at power-ON, it is determined that a paper jam has occurred and no operation is enabled until the jammed paper is removed.

[B] Ready status

(1)After the tray is moved up to check the presence/absence of paper as described above, the equipment enters the ready state. During the ready mode, the tray stays at the raised position.

(2)When a drawer is inserted or removed in the ready state, the tray is raised again and checks the presence/absence of paper.

[C]Bypass feeding

•The bypass paper sensor detects paper in the bypass tray.

•The bypass pickup roller is lowered when the bypass pickup solenoid is turned ON.

•The bypass feed clutch is turned ON, and then the bypass pickup roller and bypass feed roller are rotated.

•Paper feeding is started and the bypass feed sensor detects the passing of paper.

•The leading edge of paper turns the registration sensor ON and the paper is aligned by the registration rollers.

•The bypass feed clutch is turned OFF, causing the bypass pickup roller and bypass feed roller to stop rotating.

•The bypass pickup solenoid is turned OFF, and the bypass pickup roller moves up.

•The registration clutch is turned ON, and the paper is transported to the transfer unit.

9

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e-STUDIO350/352/353/450/452/453

 

PAPER FEEDING SYSTEM

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Toshiba 453, 452, 350, 353 service manual General operation From power-ON to ready status, Ready status, Bypass feeding
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350, 353, 453, 452 specifications

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