An image forming system includes: a sheet feeder; an image former that forms an image on a paper sheet; a conveyor that conveys a paper sheet to a sheet ejection destination; a switcher that switches sheet ejection destinations; a reader that optically reads a paper sheet, and outputs a read image; an abnormal sheet detector that detects an abnormal paper sheet by analyzing the read image; a storage; a display; and a hardware processor that performs: ejection destination switch control to control the switcher to eject an abnormal paper sheet and a succeeding paper sheet to a second ejection destination different from a regular ejection destination; storage control, for each of the abnormal paper sheet and the succeeding paper sheet, to associate sheet information, the read image, and a stacking order with one another, and store them into the storage; and display control to cause the display to display them.

A printing device includes: a casing; a first accommodating unit accommodating therein a printing medium; an image recording unit; a cutting unit; a supporting unit; a second accommodating unit; a first conveying passage; and a second conveying passage branching from the first conveying passage. The image recording unit is configured to record an image on the printing medium. The cutting unit is configured to divide the printing medium into a first medium and a second medium. The supporting unit is configured to support the printing medium conveyed in a first direction. The printing medium accommodated in the first accommodating unit is conveyed to the supporting unit along the first conveying passage. The second accommodating unit is positioned upstream of the image recording unit in the first direction and configured to accommodate therein the second medium. The second medium is conveyed to the second accommodating unit along the second conveying passage.

A recording device includes a recording unit, a first transport path, a second transport path, a first discharge roller pair, a second discharge roller pair, a first driving motor configured to drive the first discharge driving roller, a second driving motor configured to drive the second discharge driving roller, and a movement mechanism capable of moving the second discharge roller pair between a sandwiching state where a second discharge driving roller and a second discharge driven roller sandwich a recording medium, and a separated state where the second discharge driving roller and the second discharge driven roller are separated. In a part of a period in which the recording medium is transported, the second discharge roller pair is in the separated state.

Certain examples described herein relate to a buffer unit for a printing system. In certain cases, a measurement device is used to obtain measurement data representing an optical property of a printed image on a substrate. A buffer unit receives the substrate downstream of the measurement device and places the substrate in a queue. In certain cases, a controller determines, based on the measurement data, whether the printed image comprises a defect. Responsive to determining that the printed image does not comprise a defect, the controller causes the substrate to be moved from the buffer unit to an output stack. Responsive to determining that the printed image comprises a defect, the controller causes the substrate to not be moved to the output stack.

A printing apparatus includes a first discharge path that discharges a sheet and a second discharge path different from the first discharge path. An angle difference between a direction in which the sheet is discharged in the second discharge path and a conveyance direction of a conveyance roller is smaller than an angle difference between a direction in which the sheet is discharged in the first discharge path and the conveyance direction of the conveyance roller. The printing apparatus includes a control unit that discharges the sheet on which the image is printed using the second discharge path even in a case where an instruction to print an image indicates discharging the sheet to the first discharge path, if the sheet conveyed by the conveyance roller is a sheet having a thickness equal to or greater than a predetermined value.

A media processing apparatus includes a media transporter, a stacking portion on which media are stacked, a binding processing portion that binds an upstream end portion of a media bundle, a pair of ejection rollers that eject the media bundle, and a displacement mechanism that displaces a first roller of the pair of ejection rollers to a nipping position at which the media bundle is nipped and a separated position at which the first roller is separated from the media bundle, in which, when the media bundle, the upstream end portion of which is closed, is to be ejected from the stacking portion, the first roller is disposed in the nipping position and ejection of the media bundle is started, the first roller is displaced to the separated position during ejection of the media bundle, and, thereafter, the first roller is disposed again at the nipping position.

According to an example, to eject print media from an image forming apparatus, a variable page feed velocity of a first page of print media exiting a feed zone is detected. An acceleration value and a deceleration value based on the variable page feed velocity of the first page is calculated. The calculated acceleration is applied to a media movement component in the output zone when the entire first page has cleared a media sensor in the front of the output zone, and the deceleration is applied when the tail end of the first page is in a brake zone. In some examples, a second page of print media and a variable page feed velocity of the second page exiting the feed zone is detected, and the media movement component in the output zone is accelerated to match the variable page feed velocity of the second page.

There is provided a recording device including a transport section that transports paper along a support surface; a recording section; a determination region setting section; a liquid volume ratio calculation section; a determination section; and a recording position adjustment section that, when the determination section determines that the average value is larger than the threshold, adjusts a distance of the recording section from the support surface to a distance which is longer than a case in which the average value is not larger than the threshold.

A printing apparatus can prevent a print medium from buckling during discharging. In a case in which the print conveyance speed determined by the print mode is higher than or equal to a specified speed, the print medium after printing is conveyed to a discharging tray at the print conveyance speed, and in a case in which the print conveyance speed determined by the print mode is lower than the specified speed, the print medium after printing is conveyed to the discharging tray at the specified speed increased from the print conveyance speed.

A series of conveyance paths to convey a recording medium is formed across a printer and a post-processing device in a printing system. The printing system includes: a detection unit that detects that the post-processing device has entered a predetermined state; and a paper feeding control unit that limits the number of recording media fed to the conveyance path, when it is not detected that the post-processing device has entered the predetermined state, based on the number of recording media conveyable to the post-processing device after the post-processing device enters the predetermined state.