Image forming apparatus equipped with automatic document feeder
First Claim
1. An image forming apparatus having an automatic document feeder, comprising:
- (a) a document feeder for taking up a document from a document bundle placed on a document tray;
(b) a first conveyance device for conveying the document from the document feeder to a conveyance path on a downstream side;
(c) a second conveyance device for receiving the document from the first conveyance device and conveying the document to a conveyance path on a further downstream side;
(d) a document sensor provided in a conveyance path between the first conveyance devoce and the second conveyance device for detecting a trailing edge of the document; and
(e) a controller for repeatedly performing a conveyance control to convey the document from the document tray by driving the document feeder, the first conveyance device and the second conveyance device, wherein the controller has a normal mode to perform a normal-size conveyance control by taking up each document from a bundle of documents having the same size, and a multi-size mode to perform a multi-size conveyance control by taking up each document from a bundle of documents having various sizes, and wherein the normal mode is carried out, the controller controls to stop the document after a first preset time passes after a trailing edge of the document has been detected, and when the multi-size mode is carried out, the controller controls in place of using the first preset time by the second preset time which is set to be a longer time than the first preset time.
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Accused Products
Abstract
In an image forming apparatus having a document feeder for taking up a document from a document bundle placed on a document tray, a controller has a normal mode to perform a normal-size conveyance control by taking up each document from a bundle of documents having the same size, a multi-size mode to perform a multi-size conveyance control by taking up each document from a bundle of documents having various sizes. When the normal mode is carried out, the controller controls to stop the document after the first preset time passes after the trailing edge of the document has been detected, and when multi-size mode is carried out, the controller controls in place of using the first preset time by the second preset time which is set to be a longer time than the first preset time.
10 Citations
9 Claims
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1. An image forming apparatus having an automatic document feeder, comprising:
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(a) a document feeder for taking up a document from a document bundle placed on a document tray;
(b) a first conveyance device for conveying the document from the document feeder to a conveyance path on a downstream side;
(c) a second conveyance device for receiving the document from the first conveyance device and conveying the document to a conveyance path on a further downstream side;
(d) a document sensor provided in a conveyance path between the first conveyance devoce and the second conveyance device for detecting a trailing edge of the document; and
(e) a controller for repeatedly performing a conveyance control to convey the document from the document tray by driving the document feeder, the first conveyance device and the second conveyance device, wherein the controller has a normal mode to perform a normal-size conveyance control by taking up each document from a bundle of documents having the same size, and a multi-size mode to perform a multi-size conveyance control by taking up each document from a bundle of documents having various sizes, and wherein the normal mode is carried out, the controller controls to stop the document after a first preset time passes after a trailing edge of the document has been detected, and when the multi-size mode is carried out, the controller controls in place of using the first preset time by the second preset time which is set to be a longer time than the first preset time. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9)
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Specification