Toshiba e-STUDIO556 Service Manual page 108

[B] Ready status
(1) Trays detect the paper as described in [A], and the equipment goes into the ready status.
(2) The tray goes down automatically when the drawer is removed. It is raised as soon as the drawer
is reinstalled and checks if there is paper in the drawer.
[C] From the start to the end of printing
(1) The feed motor (M20) starts driving when the [START] button is pressed.
(2) When the equipment judges that the tandem LCF is ready for feeding paper, it turns ON the
tandem LCF feed clutch (CLT10). This clutch drives the pickup roller and feed roller to feed paper
from the tray.
(3) The tandem LCF transport clutch (CLT9) is turned ON to drive the transport roller when the
specified period of time has passed from the start of feeding.
(4) When the leading edge of the paper turns the tandem LCF feed sensor (S46) ON, the tandem
LCF feed clutch (CLT10) is turned OFF and feeding from the tandem LCF is completed.
(5) The paper is transported by the transport roller. If the trailing edge of the sheet previously
transported still remains at the 2nd drawer transport sensor (S39) when the leading edge of the
paper reaches the tandem LCF feed sensor (S46), the tandem LCF transport clutch (CLT9) is
turned OFF to stop the transport of the paper.
(6) When the trailing edge of the paper turns the tandem LCF feed sensor (S46) OFF, the tandem
LCF then becomes ready for feeding the next sheet of paper, and the procedures (2) to (5) are
repeated for the number of the printout.
(7) When printing is completed, the feed motor (M20) is turned OFF.
[D] Jam detection
(1) A paper jam occurs in the following cases.
• Tandem LCF feed sensor (S46) is not turned ON within a specified period of time after the
feeding is started.
• The leading edge of the paper does not pass the tandem LCF feed sensor (S46) in the
transport path within a specified period of time.
(2) Open the right lower cover, remove all the paper remaining on the transport path and close the
cover to clear the paper jam. If either of the tandem LCF transport sensor (S45) is still ON when
the right lower cover is closed, it is determined that there is still paper on the transport path and
the paper jam status is not cleared.
(3) When a paper jam occurs in the tandem LCF during continuous copying, the sheet that was fed
before the jam is copied normally.
e-STUDIO556/656/756/856(Ver03)
OUTLINE OF THE MACHINE
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