Toshiba E-STUDIO900 manual Paper Lift, Tray Detection, Lift Mechanism

5.6 PAPER LIFT

5.6.1 TRAY DETECTION

When a tray is set in the machine, the tray detection method used depends on the tray:

•The upper tray and middle tray are detected when any one of the paper size switch signals is low.

•The lower tray is detected when the switch 1 signal of the paper size switch is low.

[E] [F]

[H] [J]

[D] [G]

[I][B]

[E]

[C]

[A]

5.6.2 LIFT MECHANISM

When the machine detects that the paper tray is set in the machine, the tray lift motor [A] rotates and the coupling gear [B] on the tray lift motor engages the pin [C] of the lift drive shaft [D]. The tray drive belts [E] are connected to the tray bottom plate [F] and are driven by the tray lift motor via the lift drive shaft [D] and tray drive pulleys [G]. When the lift motor turns counterclockwise, the tray bottom plate [F] moves up. The tray goes up until the top of the paper stack pushes up the pick-up roller and the lift sensor in the feed unit is de-activated.

When the actuator [H] on the rear end of the bottom plate activates the paper height sensors [I], the remaining paper capacity is detected.

When pulling out the tray, the coupling gear [B] separates from the pin [C], so that the tray bottom plate moves downward. In the bottom tray, the damper [J] lets the tray bottom plate drop slowly.

B070/B071 5-10 PTM