Image forming device
AssigneeSharp Kabushiki Kaisha
InventorKiyoshi Sasoh
Life of this patent
Estimating the term…
Abstract
This image forming device includes an image former, a fuser, a sheet transport path that transports a paper sheet to the image former and the fuser, first and second discharge ports that are connected to the sheet transport path so as to enable a paper sheet on which a toner image has been fused to be discharged to the outside, and a controller. The sheet transport path includes first to third transport paths, and a first and second switcher. The controller, in the case of duplex printing, controls the first and second switchers such that a one end side of the paper sheet is transported to the second discharge port, and controls the second switcher such that, when the one end side is being discharged from the second discharge port, reverses the paper sheet and causes the another end side to be transported toward the image former.
Claims9
An image forming device comprising:
- an image former that forms a toner image on a paper sheet;
- a fuser that fuses the toner image formed on the paper sheet;
- a sheet transport path that transports the paper sheet to the image former and the fuser;
- a first discharge port tray and a second discharge port tray;
- a first discharge port that is connected to the sheet transport path so as to enable the paper sheet on which the toner image has been fused to be discharged to the first discharge port tray;
- a second discharge port that is connected to the sheet transport path so as to enable the paper sheet on which the toner image has been fused to be discharged to the second discharge port tray;
- and
- a controller, wherein:
- the sheet transport path comprises:
- a first transport path that transports the paper sheet to the image former and the fuser, and transports the paper sheet on which the toner image has been fused to the first discharge port,
- a second transport path that connects a transport direction downstream side of the fuser in the first transport path to the second discharge port,
- a third transport path that connects a transport direction upstream side of the second discharge port in the second transport path to a transport direction upstream side of the image former in the first transport path,
- a first switcher provided in a portion of the second transport path that is connected with the first transport path, and
- a second switcher provided in a portion of the third transport path that is connected with the second transport path, and
- in a case that a duplex printing on a long paper sheet serving as the paper sheet is selected, the controller controls a switching operation of the first switcher and a switching operation of the second switcher such that a one end side of the long paper sheet on which the toner image has been fused on one side is transported inevitably to the second discharge port, and when the one end side is being discharged from the second discharge port to the second discharge port tray, the controller controls the switching operation of the second switcher to reverse the long paper sheet and to cause another end side, being an opposite side of the one end, to be transported toward the image former via the third transport path and the first transport path, wherein the controller further controls the switching operation of the first switcher to discharge the other end side of the long paper sheet, which has been subjected to the duplex printing, to the first discharge port tray, inevitably without discharging the other end side of the long paper sheet to the second discharge port tray.
Dependencies are inferred from the claim text.