Toshiba 4580, Руководство по обслуживанию

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6570/5570 PAPER FEED SYSTEM 9 - 14 Mar. 1999 © TOSHIBA TEC
9.3.3 Description of operation
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Operation of elevator tray
(1) When the LCF door is closed with the power ON, the tray motor rotates in a forward direction and the
elevator tray rises.
(2) When the paper rises it pushes the LCF pick-up roller to which the tray switch and the LCF empty
switch are connected. When this happens, the motor turns OFF.
(3) The LCF pick-up roller moves down 2 to 3 mm when 10 to 20 sheets are fed. When this happens, the
tray-up switch is actuated and electrically turns on the motor that raises the tray up 2 to 3mm. This
raises the paper up to the level where it feeds efficiently.
(4) When paper supply runs out in the LCF, the empty switch's actuator falls into a hole in the tray’s
platform. When this happens, the motor is energized and is made to rotate in the direction that allows
the paper tray to lower. Simultaneously, the LCD panel displays the ADD PAPER symbol. The tray
motor stops when the LCF bottom switch is actuated.
(5) When the tray is loaded with paper, and the door closed, the motor turns ON and drives the paper
tray upward until it reaches the paper feed mechanism which turns the motor OFF.
Note: The other time the motor rotates in the direction to move the tray down is when the TRAY DOWN
key is depressed. Opening the door and then closing it allows the motor to energize and raise the
tray.