JP2008007284A5

JP2008007284A5 -

Info

Publication number: JP2008007284A5
Application number: JP2006180370A
Authority: JP
Filing date: 2006-06-29
Publication date: 2009-08-13

Claims

A sheet stacking means capable of stacking and storing sheets;
A feeding means for feeding the sheet in contact with the uppermost sheet stacked on the sheet stacking means;
Driving means for moving the sheet stacking portion of the sheet stacking means from a sheet replenishment position to a feeding position capable of being fed by the feeding means;
First detection means for detecting that the sheet stacking unit has moved to the feeding position;
Second detection means for detecting that the sheet stacking unit has reached a predetermined position other than the feeding position;
The driving unit is continuously driven until the second detection unit detects that the sheet stacking unit has reached the predetermined position, and after the detection by the second detection unit, the sheet stacking unit is operated by the first detection unit. Control means for controlling the drive means to be intermittently driven until it is detected that has moved to the feeding position;
A sheet feeding apparatus comprising:

A sheet stacking means capable of stacking and storing sheets;
A feeding means for feeding the sheet in contact with the uppermost sheet stacked on the sheet stacking means;
Driving means for moving the sheet stacking portion of the sheet stacking means from a sheet replenishment position to a feeding position capable of being fed by the feeding means;
A sheet presence / absence detecting means for detecting the presence / absence of a sheet on the sheet stacking unit according to the movement of the sheet stacking means;
Control means for continuously driving the drive means when the sheet presence / absence detection means does not detect the sheet, and controlling the drive means to be intermittently driven when the sheet presence / absence detection means detects the sheet; ,
A sheet feeding apparatus comprising:

A sheet remaining amount detecting unit configured to detect a remaining amount of the sheet on the sheet stacking unit; and The sheet feeding apparatus according to claim 1 or 2, wherein the sheet feeding device is controlled.

A sheet feeding device according to any one of claims 1 to 3,
Image forming means for forming an image on a sheet conveyed from the sheet feeding device;
An image forming apparatus comprising:

A driving step of moving a sheet stacking unit of a sheet stacking unit capable of stacking and storing sheets from a sheet replenishing position to a feeding position capable of feeding by a feeding roller;
A first detection step of detecting that the sheet stacking unit has moved to the feeding position;
A second detection step of detecting that the sheet stacking unit has reached a predetermined position other than the feeding position;
In the driving process, continuous driving is performed in the driving process until it is detected in the second detecting process that the sheet stacking unit has reached the predetermined position, and the feeding position is detected in the first detecting process from the predetermined position. A control step of controlling the sheet stacking unit to move intermittently in the driving step until it is detected that the sheet stacking unit has been moved,
A sheet feeding control method comprising:

A driving step of moving a sheet stacking unit of a sheet stacking unit capable of stacking and storing sheets from a sheet replenishing position to a feeding position capable of feeding by a feeding roller ;
A sheet presence / absence detection step for detecting the presence / absence of a sheet on the sheet stacking unit according to the movement of the sheet stacking unit;
When the sheet is not detected in the sheet presence detection step, the sheet is continuously driven in the driving step, and when the sheet is detected in the sheet presence detection step, the sheet stacking unit is moved intermittently in the driving step to move the sheet stacking unit. A control process for controlling
A sheet feeding control method comprising:

A sheet remaining amount detecting step for detecting a remaining amount of sheets on the sheet stacking unit; and in the control step, the sheet remaining amount detected in the sheet remaining amount detecting step is less than a predetermined amount The sheet feeding control method according to claim 5, wherein the driving process is controlled.