Toshiba KD1009, Руководство пользователя, Страница: 22 / 41

October 2000 © TOSHIBA TEC 3 - 1 KD-1009 GENERAL OPERATION
3. GENERAL OPERATION
3.1 Description of Operations
[A] From power ON to standby
(1) When the copier is turned ON, power is also supplied to the feeder unit. Tray-up motor (M2)/(M3) is
turned ON to raise tray. Tray-up sensor (S4)/(S5) is turned ON correspondingly, then the tray-up motor
(M2)/(M3) is turned OFF to stop the tray. If the empty sensor (S6)/(S7) is OFF (H) at this time, it is
judged that there is no paper in the cassette. If the empty sensor is ON (L), it is assumed that there is
paper in the cassette, and the tray stay in the raised position until the cassette is pulled out.
(2) If the power is turned ON when the cassette has been removed, the tray-up motor for that cassette is
not turned ON. The tray is raised as soon as the cassette is installed, and it detects if there is paper
in the cassette.
(3) If either of the feed sensors (S2), (S3) is ON (there is paper in the transportation path) when the power
is turned ON, that means paper jam has occurred and operation is disabled until the paper is removed.
[B] Standby status
(1) Trays detect the paper as described above, and the copier goes into standby status.
(2) The tray goes down automatically when the cassette is removed and it is raised as soon as the
cassette is installed again and checks if there is paper in the cassette.
[C] From the start to the end of copying
(1) The main motor of the copier is turned ON when the START key is pressed. About 0.1 sec. later, the
PFP motor (M1) and the transport clutch (C1) are turned ON to drive the transport rollers.
(2) When the copier judges that PFP is ready for feeding paper, it turns ON the feed clutch (C2)/(C3) of the
selected cassette. This clutch drives the pickup roller and feed roller to feed paper from the tray.
(3) The leading edge of the paper turns the feed sensor (S2)/(S3) ON. These are located right next to the
exit side of the selected cassette. The feed clutch (C2)/(C3) is turned OFF and feeding from the
cassette is completed.
(4) The paper is transported to the copier by the PFP transport roller. If the trailing edge of the previously
sent sheet still remains at the feed sensor when the leading edge of the paper reaches the feed sensor
(S2)/(S3), the transport clutch (C1) is turned OFF to stop the transport of the paper. (In case of DP4500/
3500, the transport cluch (C1) is not turned OFF until the registration operation is completed regardless
of the size of the paper.)
(5) The trailing edge of the paper turns the feed sensor (S2)/(S3) OFF. These are located right next to the
exit side of the selected cassette. PFP then becomes ready for feeding the next sheet of paper, and
the procedures (2) to (4) are repeated.
(6) When the copying operation is completed, the main motor, PFP motor (M1) and transport clutch (C1)
are turned OFF and the transport roller is stopped.