Medium processing device and image forming system

Abstract

To provide a medium processing device for executing a prescribed process on a plurality of media, which can prevent incursion of a foreign object.SOLUTION: This medium processing device comprises: a mounting unit on which media are placed; liquid application means for applying a liquid to at least one medium placed on the mounting unit; post-processing means for performing a prescribed process on a plurality of media to which the liquid has been applied by the liquid application means; a discharge unit from which the media subjected to the process by the post-processing means are discharged; an opening / closing guide member that opens / closes a conveyance path of the media from the mounting unit to the discharge unit; and control means for controlling operations of the liquid application means, the post-processing means, and the opening / closing guide member. The control means sets the opening amount of the conveyance path by the opening / closing guide member to a first opening amount when the media are placed on the mounting unit, and sets the opening amount of the conveyance path by the opening / closing guide member to a second opening amount smaller than the first opening amount when the liquid is applied to the media by the liquid application means.SELECTED DRAWING: Figure 15

Claims

1. A placement section for placing a medium; Liquid application means for applying liquid to at least one of the media placed on the placement section; Post-treatment means for performing a predetermined treatment on the plurality of media to which liquid has been applied by the liquid application means; A discharge section through which the plurality of media on which the predetermined treatment has been performed by the post-treatment means are discharged; An opening / closing guide member for opening and closing a conveyance path of the medium from the placement section to the discharge section; Control means for controlling the operations of the liquid application means, the post-treatment means, and the opening / closing guide member, wherein the control means: When placing the medium on the placement section, sets the opening amount of the conveyance path by the opening / closing guide member as a first opening amount; When causing the liquid application means to apply liquid to the medium, sets the opening amount of the conveyance path by the opening / closing guide member as a second opening amount smaller than the first opening amount. A medium processing apparatus characterized by this.

2. In the medium processing apparatus according to Claim 1, the control means changes the first opening amount in accordance with the number of the media placed on the placement section when placing the medium on the placement section. A medium processing apparatus characterized by this.

3. In the medium processing apparatus according to Claim 1, the control means changes the second opening amount in accordance with the number of the media placed on the placement section when causing the liquid application means to apply liquid to the medium. A medium processing apparatus characterized by this.

4. In the medium processing apparatus according to Claim 1, it is provided with detection means for detecting the opening amount of the conveyance path by the opening / closing guide member, and the control means does not cause the liquid application means to apply liquid to the medium when the opening amount detected by the detection means is equal to or greater than a threshold value. A medium processing apparatus characterized by this.

5. In the medium processing apparatus according to Claim 1, a plurality of conveyance means for conveying the medium at different positions of the conveyance path, wherein one of the plurality of conveyance means sandwiches a plurality of the media placed on the placement section with a driving roller and a driven roller arranged opposite to the driving roller across the conveyance path, and conveys them toward the discharge section, and the opening / closing guide member opens and closes the conveyance path by rotating while supporting the driven roller at a rotating tip. A medium processing apparatus characterized by this.

6. In the medium processing apparatus according to Claim 5, the plurality of conveyance means include: a first conveyance means, A second conveying means for conveying the medium conveyed by the first conveying means toward the placement unit; A third conveying means including the driving roller and the driven roller, for conveying a plurality of the media placed on the placement unit toward the discharge unit; The control means; After the leading end of the medium reaches the first conveying means and before reaching the third conveying means, the opening amount of the conveyance path by the opening / closing guide member is set as the first opening amount; After the second conveying means that has conveyed the medium to the placement unit stops and before the liquid applying means applies liquid, the opening amount of the conveyance path by the opening / closing guide member is set as the second opening amount. A medium processing apparatus characterized by this.

7. An image forming apparatus for forming an image on the medium; An image forming system including the medium processing apparatus according to claim 1.

Images