An image forming apparatus includes an apparatus main body, a sheet storage cassette, a sheet feed unit, a first detection sensor having a first detector for detecting the presence/absence of sheets stacked on a sheet stacking plate, a second detection sensor having a second detector for detecting the position of the top face of the sheets stacked on the sheet stacking plate, a cassette detection sensor, a driving device, and a controller. The sheet feed unit includes a first actuator for switching detection states of the first detection sensor and a second actuator for switching detection states of the second detection sensor. The controller determines the mounting state of the sheet feed unit based on the detection state of the first and second detection sensors.

A user interface for a media processing apparatus is adapted to process image receiving media so as to determine a physical configuration of a media sheet. The user interface includes a screen, a controller adapted to receive image data specifying an image to be received on a sheet and to control the screen so as to display a preview showing the sheet with the image received thereon, an input section adapted to input preview editing commands, and an output section adapted to output set commands for the media processing apparatus. The controller is adapted to derive the set commands from the preview editing commands.

A sheet feeding apparatus includes a sheet conveying unit configured to convey a sheet along a conveyance path, a detecting unit configured to detect the sheet passing along the conveyance path, a control unit configured to determine an amount of delay of a sheet conveyed along the conveyance path based on the detection and determine information to be output based on the amount of the delay, and an output unit configured to output the information.

Described embodiments include a system and method. A print sheet media management system includes a feeder apparatus configured to transfer a sheet from a stack of printable sheet media to a print engine. The system includes a weight sensor configured to sense a weight of the stack of printable sheet media. The system includes an evaluation circuit configured to estimate the number of sheets in the stack of printable sheet media in response to (i) a sensed weight of the stack of printable sheet media before a sheet of the stack of printable sheet media is transferred and (ii) a sensed weight of the stack of printable sheet media after the sheet of printable sheet media is transferred. The system includes a communications circuit configured to transmit data indicative of the estimated number of printable sheets in the stack of printable sheet media.

An image forming apparatus includes: an image former, a paper feed tray that feeds a sheet to the image former; a display that displays a list of tray information on the paper feed tray, based on a mounting order with respect to an apparatus; and a controller that controls display of the display. The controller changes a display order of a list of the tray information according to a display priority based on an image forming operation.

An image forming system includes an image forming apparatus, a pressure-bonding processing apparatus, an inputting portion, and a display portion. The displaying portion displays a pressure-bonding printed matter prepared by changing directions of a front surface and a back surface of the recording material in a case that the directions of the front surface and the back surface of the recording material inputted by the inputting portion are different from directions of the front surface and the back surface of the recording material when the pressure-bonding printed matter is capable of being properly prepared.

A sheet property measurement device includes a passage configured to allow a sheet to be manually inserted thereinto; a reading sensor configured to read a surface of the sheet inserted into the passage; a detection unit having a displacement member configured to be brought into contact with the sheet downstream of a reading position of the reading sensor in an insertion direction in which the sheet is inserted and change in displacement amount depending on a thickness of the sheet, the detection unit being configured to detect the displacement amount of the displacement member; a sheet sensor configured to detect the sheet that has arrived at a detection position downstream of the displacement member in the insertion direction; and a controller.