Provided is an inkjet recording apparatus that reduces clogging of nozzles, while at the same time avoid a decrease in productivity of the recording medium, and reduces situations in which the recording medium becomes stained due to the staining of opening portions and splashing due to ink ejected during flushing. A conveyor belt of the inkjet recording apparatus has a plurality of opening portion groups. The control unit determines the pattern of the plurality of opening portion groups used for flushing in one cycle of the conveyor belt according to the size of the recording medium. The control unit causes the recording medium to be supplied from the recording medium supply unit between the plurality of opening groups arranged in the conveying direction in the above pattern on the conveying belt and at positions separated from the opening portion groups by a specific distance or more.

An image forming apparatus includes an image forming unit, a paper loading base on which manual-feed paper is loaded, a manual-feed paper conveying unit, and a dustproof cover which covers the paper loading base being in the overhang state. The paper loading base has a lower end rotatably supported on one outer surface portion of the device main body, and is opened from an upper end thereof and disposed at a predetermined oblique angle or in a horizontal overhang state such that an overhang side becomes an upper side in an oblique direction. The manual-feed paper conveying unit is conveys the manual-feed paper on the paper loading base onto a paper conveyance path one by one. The dustproof cover includes a base which engages with the paper loading base, and an opening-and-closing cover which is rotatably connected to the base and is opened upwardly on the overhang side.

A driving force transmission device includes a rotating body that is rotated by receiving a driving force, a control unit that controls rotation of the other rotating part by being switched between a connection state where the control unit is connected to the other rotating part and a separation state where the control unit is separated from the other rotating part as states of the control unit with respect to the other rotating part, and an operation unit that is operated by receiving a force output from the rotating body and includes a contact mechanism to be in contact with the control unit, the contact mechanism being moved by the force output from the rotating body to operate the control unit and the contact mechanism then being separated from the control unit.

An image forming apparatus, in which a method of correcting a positional deviation of a sheet is performed, includes a detecting device to detect a position of the sheet, a pair of sheet conveying bodies to convey the sheet and correct the positional deviation of the sheet, an image forming device to form an image on the sheet, and circuitry to calculate a first positional deviation amount of the sheet based on a first detection result of the detecting device, cause the pair of sheet conveying bodies to correct the positional deviation of the sheet based on the first positional deviation amount, calculate a second positional deviation amount of the sheet based on a second detection result of the detecting device, and cause the image forming device to correct the positional deviation of an image forming position on the sheet based on the second positional deviation amount.

An image forming apparatus includes a communication interface, an image forming unit, a plurality of sheet feeders, and a motor configured to selectively apply a drive force any of the sheet feeders. A transmission assembly switches transmission to any one of the sheet feeders. A controller receives preceding data from the communication interface, and, in response, controls the transmission assembly to initiate a switch of the transmission of the drive force to a standard sheet feeder among the plurality of the sheet feeders. In response to receipt control data received after the preceding data, the controller controls the image forming unit, motor, and transmission assembly to form an image on the sheet based on an image forming condition included in the control data.

A system for controlling an operation of feeding recording media from a plurality of physical medium containers of an output apparatus includes at least one memory to store output-related media/container information including logical information, property information of the recording media, and information of the plurality of physical medium containers by associating the logical information and the property information of the recording media, and associating the logical information and the information of the plurality of physical medium containers, and circuitry configured to generate an output instruction including logical information, extract the logical information from the output instruction, and identify one or more physical medium containers each containing a specific recording medium to be used in performing an image forming operation by referring the property information of the recording media and the information of the plurality of physical medium containers each associated with the extracted logical information in the memory.

In some examples, printing device performance analysis may include actuating a motor to operate a first separation tire of a printing device in a first rotary direction. The first separation tire may be operable adjacent to a second separation tire rotatable in a second rotary direction that is opposite to the first rotary direction to separate physical media. Printing device performance analysis may further include actuating the motor to operate the first separation tire in the second rotary direction, and determining whether a motor torque difference of the motor between the first and second rotary directions is greater than a predetermined threshold.

An inkjet recording apparatus includes, among a plurality of branch conveyance passages, ones with different conveyance distances for a recording medium. Based on the timing of the sensing of the recording medium by a recording medium sensor, a controller controls a switching portion to make it switch the destination of the conveyance of the recording medium to one of the branch conveyance passages.

An application device includes an application roller to apply a treatment liquid to a sheet medium and multiple conveyance roller pairs to convey the sheet medium from an upstream side to a downstream side of the application roller. The multiple conveyance roller pairs define a conveyance path of the sheet medium and include a downstream conveyance roller pair adjacent to the application roller on the downstream side along the conveyance path. The downstream conveyance roller pair includes two rollers having a length equal to or longer than a width of the sheet medium and a nip force applying member that applies a nip force to one of the two rollers to nip the sheet medium with the two rollers in a width direction of the sheet medium.

A paper supply device is equipped with a paper supply unit that sequentially supplies a plurality of print media, and a control unit that controls the paper supply unit. During sequential supply of a plurality of print media at a paper supply interval, in the case that it is necessary to secure a paper supply interval which is set in advance and is longer than the paper supply interval, a reference paper supply interval, based on a point in time which is a natural number multiple of the paper supply interval, and a post print process paper supply interval are compared. Print media are supplied at the post print process paper supply interval in the case that the post print process paper supply interval and the reference paper supply interval are different.