Conveying unit for image forming apparatus
AssigneesKabushiki Kaisha Toshiba, Toshiba Tec Kabushiki Kaisha
InventorsToshihiro MATSUSHIMA, Kazumasa YASUI, Masataka MURATANI
Life of this patent
Estimating the term…
Abstract
An interlock switch is switched according to the movement of a relay reversal unit rather than the movement of a front cover. The relay reversal unit is connected to a driver substrate by a drawer connector. The change-over of the interlock switch according to the movement of the relay reversal unit is turned off when margin time elapses after a cover detection switch is turned off.
Claims20
A sheet conveying unit for an image forming apparatus, comprising:
- a first conveying unit that moves in a first direction with respect to an apparatus main body;
- a second conveying unit that moves in a second direction with respect to the apparatus main body;
- a first switch that detects attachment and detachment of the first conveying unit to and from the apparatus main body;
- a second switch that locks driving of the first conveying unit and the second conveying unit;
- a first actuator that actuates the first switch according to the movement of the first conveying unit;
- and
- a second actuator that turns off the second switch after turning-off operation for the first switch by the first actuator, according to the movement of the first conveying unit to remove the first conveying unit inserted in the apparatus main body.
An image forming apparatus comprising:
- an image forming unit;
- an apparatus main body that holds the image forming unit;
- a first conveying unit that moves in a first direction with respect to the apparatus main body;
- a second conveying unit that moves in a second direction with respect to the apparatus main body;
- a driver that is arranged in the apparatus main body and controls driving units for the first conveying unit and the second conveying unit;
- a first switch that detects attachment and detachment of the first conveying unit to and from the apparatus main body;
- a second switch that locks driving of the first conveying unit and the second conveying unit;
- a first actuator that actuates the first switch according to the movement of the first conveying unit;
- and
- a second actuator that turns off the second switch after turning-off operation for the first switch by the first actuator, according to the movement of the first conveying unit to remove the first conveying unit inserted in the apparatus main body.
A method of attaching and detaching a sheet conveying unit, comprising:
- opening a front cover of an apparatus main body;
- detecting that a first conveying unit is removed from the apparatus main body while the first conveying unit is moved to a front side;
- locking driving of the first conveying unit and a second conveying unit after detecting that the first conveying unit is removed from the apparatus main body;
- and
- stopping, the second conveying unit, during after detecting that the first conveying unit is removed from the apparatus main body and by the time when the driving of the first conveying unit and the second conveying unit is locked.
Dependencies are inferred from the claim text.