An image forming apparatus includes a cassette that has a placement plate on which a sheet is set, a paper feed roller, a raising/lowering mechanism that raises and lowers the placement plate, a print unit, a sheet sensor, an upper limit sensor and a control unit. The control unit recognizes, based on an output of the sheet sensor, that the sheet supplied from a paper feed device reaches an installation position of the sheet sensor. The control unit detects, based on an output of the upper limit sensor, that the paper feed roller reaches a predetermined upper limit position or that the raising/lowering mechanism raises the placement plate such that the sheet reaches a feed position and uses the sheet sensor and the upper limit sensor so as to detect that the paper feed device encounters overload.

An image forming apparatus to which a first feeding device which does not notify abnormal sheet feeding or a second feeding device which notifies the abnormal sheet feeding is connectable includes a sheet receiving portion, a sheet detector, an image forming unit, and a controller. In a case that the first feeding device is connected to the image forming apparatus, the controller discriminates that the abnormal sheet feeding occurs in the first feeding device when the detector does not detect the sheet at first timing. In a case that the second feeding device is connected to the image forming apparatus, the controller discriminates that the abnormal sheet feeding occurs at the sheet receiving portion when the detector does not detect the sheet at second timing and notification of the abnormal sheet feeding is not provided from the second feeding device.

An image forming apparatus to which a first feeding device which does not notify abnormal sheet feeding or a second feeding device which notifies the abnormal sheet feeding is connectable includes a sheet receiving portion, a sheet detector, an image forming unit, and a controller. In a case that the first feeding device is connected to the image forming apparatus, the controller discriminates that the abnormal sheet feeding occurs in the first feeding device when the detector does not detect the sheet at first timing. In a case that the second feeding device is connected to the image forming apparatus, the controller discriminates that the abnormal sheet feeding occurs at the sheet receiving portion when the detector does not detect the sheet at second timing and notification of the abnormal sheet feeding is not provided from the second feeding device.

Tray selection in printing may involve checking for the availability of paper trays which may provide increased paper throughput, and by postponing a switch to use such trays to help avoid excessive tray switching that could adversely affect paper throughput. When a higher ranked tray is unavailable, tray selection may involve checking the availability of lower ranked trays before the present tray is empty, and by postponing a switch to such trays to help avoid excessive tray switching. A change in printing condition may provide a convenient and opportune time to switch between trays without adversely affecting paper throughput.

Tray selection in printing may involve checking for the availability of paper trays which may provide increased paper throughput, and by postponing a switch to use such trays to help avoid excessive tray switching that could adversely affect paper throughput. When a higher ranked tray is unavailable, tray selection may involve checking the availability of lower ranked trays before the present tray is empty, and by postponing a switch to such trays to help avoid excessive tray switching. A change in printing condition may provide a convenient and opportune time to switch between trays without adversely affecting paper throughput.

In some examples, the disclosure describes a device that includes a first media tray positioned at a media input of a pick and separation mechanism, a second media tray positioned at the media input of the pick and separation mechanism, a media scan guide to position a sheet of print media at the media input of the pick and separation mechanism, a shared media path comprising a turn roller to receive the sheet of print media from the pick and separation mechanism from a first direction and provide the sheet of print media to a print zone in a second direction, and an output zone to receive the sheet of print media from the shared media path.

A paper sheet recycling and printing apparatus includes a paper sheet recycling section which manufactures a recycled paper sheet; a printing section which prints recording information on a recording target medium including the recycled paper sheet; a plurality of recycled paper sheet storage sections including a first recycled paper sheet storage section and a second recycled paper sheet storage section in which the recycled paper sheet is stored; a recycled paper sheet supply section which supplies the recycled paper sheet from the paper sheet recycling section to the recycled paper sheet storage section; and a transport section which transports the recording target medium to the printing section. The transport section transports the recycled paper sheet stored in the first recycled paper sheet storage section to the printing section, and the recycled paper sheet supply section supplies the recycled paper sheet to the second recycled paper sheet storage section.

A paper sheet recycling and printing apparatus includes a paper sheet recycling section which manufactures a recycled paper sheet; a printing section which prints recording information on a recording target medium including the recycled paper sheet; a plurality of recycled paper sheet storage sections including a first recycled paper sheet storage section and a second recycled paper sheet storage section in which the recycled paper sheet is stored; a recycled paper sheet supply section which supplies the recycled paper sheet from the paper sheet recycling section to the recycled paper sheet storage section; and a transport section which transports the recording target medium to the printing section. The transport section transports the recycled paper sheet stored in the first recycled paper sheet storage section to the printing section, and the recycled paper sheet supply section supplies the recycled paper sheet to the second recycled paper sheet storage section.

There is provided a paper sheet recycling and printing apparatus including: a paper sheet recycling section which manufactures a recycled paper sheet under a first condition and a second condition different from the first condition; a first recycled paper sheet storage section in which the recycled paper sheet manufactured under the first condition is stored; a second recycled paper sheet storage section in which the recycled paper sheet manufactured under the second condition is stored; and a printing section to which the recycled paper sheet manufactured under the first condition is supplied from the first recycled paper sheet storage section and which prints recording information on a recording target medium including the recycled paper sheet.

There is provided a paper sheet recycling and printing apparatus including: a paper sheet recycling section which manufactures a recycled paper sheet under a first condition and a second condition different from the first condition; a first recycled paper sheet storage section in which the recycled paper sheet manufactured under the first condition is stored; a second recycled paper sheet storage section in which the recycled paper sheet manufactured under the second condition is stored; and a printing section to which the recycled paper sheet manufactured under the first condition is supplied from the first recycled paper sheet storage section and which prints recording information on a recording target medium including the recycled paper sheet.