An image forming apparatus includes a reverse roller pair configured to reverse a conveyance direction of a recording medium between a first direction and a second direction, a first conveyance roller pair configured to convey the recording medium in the first direction, and a second conveyance roller pair configured to convey the recording medium in the second direction. A first distance is between the first conveyance roller pair and a reversal position in which a trailing edge of the recording medium is located when the conveyance direction is reversed. A second distance is between the reversal position and the second conveyance roller pair. An absolute value of a difference between the first distance and the second distance is an integer multiple of a circumferential length of a drive roller of the reverse roller pair or within a predetermined range from the integer multiple.

An image forming apparatus includes a reverse roller pair including a drive roller and a driven roller by which a recording medium is nipped and conveyed reversibly, a motor configured to rotate the drive roller reversibly, a conveyance roller pair, a detection unit configured to detect the recording medium conveyed by the conveyance roller pair, and a controller configured to control the motor, in a case in which the recording medium is detected by the detection unit, to cause the drive roller to rotate in a first rotation direction by a first rotation amount, thereafter to cause the drive motor to rotate in a second rotation direction by a second rotation amount. A difference between the first rotation amount and the second rotation amount is set to an integer multiple of a predetermined rotation amount of the motor, the predetermined rotation amount making the drive roller one rotation.

A sheet conveyance apparatus includes a switching member to execute a pivot operation and a conveyance portion to convey a sheet at a first conveyance speed where a driving motor rotates at a first rotational speed, and to convey the sheet at a second conveyance speed which is greater than zero and slower than the first conveyance speed where the driving motor rotates at a second rotational speed which is greater than zero and slower than the first rotational speed. Where a control portion conveys a first sheet at the first conveyance speed, the switching member executes the pivot operation at the second operating speed before the first sheet arrives at the switching member and the conveyance portion, and rotates the driving motor at the first rotational speed after the pivot operation has been executed and before the first sheet arrives at the conveyance portion.

An image forming apparatus includes an image forming portion, a reversing portion configured to reverse the sheet received through a first feeding passage by feeding the sheet in a first direction and then in a second direction opposite to the first direction, a sheet feeding portion provided in a second feeding passage branching from the first feeding passage on a side upstream of the reversing portion with respect to the first direction, a first guiding surface forming the second feeding passage for guiding a first surface of the sheet fed by the feeding portion, and a second guiding surface for guiding a second surface, opposite from the first surface, of the sheet fed from the reversing portion in the second direction. The second guiding surface is movable with movement of the first guiding surface for opening the second feeding passage.

An image forming apparatus includes a housing, a sheet conveyor, a sheet stacker, and circuitry. The sheet conveyor is configured to convey a sheet on which liquid is applied. The sheet stacker is configured to stack the sheet conveyed by the sheet conveyor. The circuitry is configured to control conveyance of the sheet. The circuitry is configured to cause the sheet conveyor to expose the sheet on which the liquid is applied, to an outside of the housing, and convey the sheet to the sheet stacker.

A sheet conveyer having a conveyer path to convey a sheet therein, a first path and a second path branched from the conveyer path, a flapper, a pair of pivot-shaft portions, and a supporting section, is provided. The flapper is movable between a first position to guide the sheet from the conveyer path to the first path and a second position to guide the sheet from the conveyer path to the second position. The pivot-shaft portions are located apart from each other in a widthwise direction. The pivot-shaft portions support the flapper pivotably. The supporting section is located between the pair of pivot-shaft portions in the widthwise direction. The supporting section supports the flapper pivotably. The supporting section includes a rotation-shaft portion being rotatable, a bearing portion, in which the rotation-shaft portion is fitted, and a buffer member located between the rotation-shaft portion and the bearing portion.

A medium supply device is provided that includes a single sheet paper accommodating unit at which media are stacked and placed, and a feeding roller configured to feed the media by rotating in contact with a top surface of the placed media. The feeding roller includes a contact portion configured to contact the single sheet paper and a non-contact portion configured to not contact the single sheet paper in a rotational direction, and a plurality of the contact portions and the non-contact portions are provided in a first direction that is an extending direction of a rotation axis of the feeding roller, and the contact portions adjacent to each other in the first direction are out of phase in the rotational direction.

A recording apparatus includes a conveying unit, a supporting unit, and a static elimination unit. The conveying unit conveys a recording medium in a first direction to a recording area where recording is performed by a recording unit. The supporting unit supports the recording medium conveyed by the conveying unit and includes an abutment surface that abuts the recording medium when the supporting unit supports the recording medium. The static elimination unit eliminates static from the recording medium in a static elimination portion. The static elimination portion is not provided at a position opposed to the abutment surface and is provided at a position not opposed to the abutment surface in the supporting unit.

A sheet transport device includes a sheet storage unit that stores a sheet and that is disposed in a housing having a bottom plate such that a gap is provided between the sheet storage unit and the bottom plate, the gap extending horizontally; a sheet transport unit that feeds the sheet from the sheet storage unit and transports the fed sheet along a transport passage including a reversing transport path along which the sheet is transported downward and then upward to reverse the sheet front to back, the reversing transport path extending vertically and being connected to the gap; and a first gate unit that prevents passage of the sheet that has entered the reversing transport path when the sheet free falls and allows passage of the sheet when the sheet receives a sheet transport driving force from the sheet transport unit.

A sheet conveyance apparatus comprises: a first conveyance roller configured to convey a sheet; a second conveyance roller, arranged downstream of the first conveyance roller in the conveyance direction in which the sheet is conveyed, configured to convey the sheet; a first conveyance path configured to guide the sheet from the first conveyance roller to the second conveyance roller; a second conveyance path, which is branched from the first conveyance path between the first conveyance roller and the second conveyance roller to guide the sheet, the second conveyance path having a bent portion; a third conveyance roller configured to convey the sheet guided by the second conveyance path; a first motor configured to drive the third conveyance roller; a second motor; a first transmission mechanism configured to transmit a driving force of the second motor to the second conveyance roller.