Toshiba e-STUDIO2500c, Service Manual, Page: 197 / 402

10
May 2006 © TOSHIBA TEC e-STUDIO2500c/3500c/3510c PAPER FEEDING SYSTEM
10 - 9
10.4.5 General operation
[A] From power-ON to ready status
1) When the equipment is turned ON, the tray-up motor (M21) is activated and the 1st drawer tray
starts to rise. When the tray-up sensor (S31) is turned ON (L
→
H), the tray-up motor (M21) is turned
OFF, and the tray is stopped. At this time, if the empty sensor (S32) is OFF (L), it is judged that there
is no paper in the drawer.
If the empty sensor (S32) is ON (H), there is paper in the drawer. The tray stops at raised position
regardless of availability of paper. The tray-up motor (M21) then starts to rotate in reverse and the
2nd drawer is raised. The 2nd drawer is stopped in the same manner as the 1st drawer, and the
empty sensor (S36) detects if there is any paper in the drawer.
2) If the drawer is not completely inserted when the equipment is turned ON, the tray for that drawer is
not raised. When the drawer is inserted completely, the tray is raised and checks the availability of
the paper.
3) If either of the sensors on the transport path is ON (means there is paper on the transport path)
when the equipment is turned ON, it is determined that a paper jam has occurred and no operation
is enabled until the paper is removed.
[B] Ready status
1) After the tray is moved up and availability of paper is checked as described above, the equipment
enters the ready status.
At ready status, the tray remains at raised position.
2) When a drawer is inserted or removed at ready status, the tray is raised again to check the availabil-
ity of paper.
[C] Bypass feeding
• The bypass paper sensor (S40) detects availability of paper.
• The bypass pickup solenoid (SOL1) is turned ON and the bypass pickup roller is lowered.
• The bypass feed clutch (CLT8) is turned ON and then the bypass pickup roller, bypass feed roller
and bypass transport roller are rotated and start feeding.
• The leading edge of paper turns ON the bypass feed sensor (S41) and bypass pickup solenoid
(SOL1) is turned OFF. Then the bypass pickup roller is raised.
• The leading edge of paper turns ON the registration sensor (S28) and the paper is aligned by the
registration roller.
• The bypass feed clutch (CLT8) is turned OFF, and then the bypass pickup roller, bypass feed roller
and bypass transport roller are stopped.
• The registration motor (M19) is turned ON and the paper is transported to the 2nd transfer position.