JP2008037541A5

JP2008037541A5 -

Info

Publication number: JP2008037541A5
Application number: JP2006212056A
Authority: JP
Filing date: 2006-08-03
Publication date: 2009-09-17
Anticipated expiration: 2026-08-03

Claims

Discharging means for discharging the sheet;
First sheet stacking means for stacking sheets discharged from the discharge means;
Located under side of said first sheet stacking means, and a second sheet stacking means for stacking the sheets discharged from said discharge means,
First moving means for moving the first sheet stacking means in the vertical direction;
Second moving means for moving the second sheet stacking means in the vertical direction;
Position detecting means for detecting the vertical position of the second sheet stacking means;
An abnormality detecting means for detecting an abnormality in movement of the second sheet stacking means;
If stacking sheets to said first sheet stacking means, controlling said first moving means so as to adjust the position of said first sheet stacking means in accordance with the amount of the sheets stacked in said first sheet stacking means When the position detecting unit detects that the first sheet stacking unit has been lowered to a predetermined position, the first sheet stacking unit determines that the first sheet stacking unit is full, and the second sheet stacking unit moves to the second sheet stacking unit . If for stacking sheets, a position, and a control unit that Gyosu control the second moving means so as to adjust the said second sheet stacking means in accordance with the amount of the sheets stacked in the second sheet stacking means Have
Before SL control means, said abnormality detection is abnormal detection of the movement of the second sheet stacking means by means stops further said position by Ri before Symbol of the second to the sensing means sheet stacking means in a first position Is detected by the abnormality detection unit, and the second sheet stacking unit is moved from the first position by the position detection unit. The predetermined position for determining that the first sheet stacking means is full is set at a position above the case where it is detected that the second sheet is stopped at the second position located below. Sheet processing device.

The discharge means is provided below the first discharge means in the vertical movement direction of the first discharge means and the first discharge means for discharging sheets to the first sheet stacking means. And a second discharge means for discharging the sheet to the first sheet stacking means and the second sheet stacking means,
When the abnormality of the movement of the second sheet stacking unit is detected by the abnormality detection unit, the control unit is configured to stack the sheet discharged by the first discharge unit on the first sheet stacking unit. 2. The sheet processing apparatus according to claim 1 , wherein the predetermined position at which the first sheet stacking unit is determined to be full is set according to a stop position of the second sheet stacking unit .

In order to post-process the sheets, a processing tray for temporarily stacking the sheets,
First sheet stacking means for stacking sheets;
Second sheet stacking means located below the first sheet stacking means;
First discharge means for discharging the sheets on the processing tray to the first and second sheet stacking means;
First moving means for moving the first sheet stacking means in the vertical direction;
Second moving means for moving the second sheet stacking means in the vertical direction;
Position detecting means for detecting the vertical position of the second sheet stacking means;
An abnormality detecting means for detecting an abnormality in movement of the second sheet stacking means;
If stacking sheets to said first sheet stacking means, controlling said first moving means so as to adjust the position of said first sheet stacking means in accordance with the amount of the sheets stacked in said first sheet stacking means and, when said stacking the second sheet to the sheet stacking means, said second sheet in accordance with the amount of the sheets stacked in the stacking means to adjust the position of said second sheet stacking means and said second moving means and control means that Gyosu control the,
Has, said control means, said abnormality by detecting means of the movement of the second sheet stacking means abnormality is detected, the stop position of the second sheet stacking means that will be detected by the position detecting means, wherein if above the reference position which is under a predetermined distance from the first discharge means, the discharge operation using the first discharge means is prohibited, if below the prior SL reference position, before Symbol first discharge means A sheet processing apparatus that allows a discharging operation using a sheet.

A second discharge unit that discharges a sheet that is not subjected to post-processing to the first sheet stacking unit without passing through the processing tray; and the control unit is configured such that the stop position of the second sheet stacking unit is 4. The sheet processing apparatus according to claim 3, wherein if it is above a reference position, a discharge operation using the first discharge unit is prohibited, while a discharge operation using the second discharge unit is permitted.

An image forming system comprising the sheet processing apparatus according to claim 1 and an image forming apparatus connected to a preceding stage.