A dispenser for dispensing a flexible, rolled sheet material can include a housing and a supply of the sheet material supported within the housing for feeding the sheet material along a path defined through the housing. A feed roller can be rotatably mounted within the housing and have a body that engages the sheet material to pull the sheet material from the supply to dispense a selected amount of the sheet material therefrom. The dispenser also can include pressing rollers positioned adjacent the feed roller and biased to engage the sheet material between the pressing rollers and the feed roller, and a cutting mechanism arranged along the body of the feed roller that can have a cutting blade operatively connected to the body of the feed roller and actuated with rotation thereof to at least partially cut or perforate a selected portion of the sheet material.

A postprocessing device includes a pair of folding rollers, a folding blade, a transport device, a roller driver, a blade driver, and a drive controller. The drive controller selectively performs one of a first rotation control, including controlling the roller driver to keep rotation speed of the pair of folding rollers constant, while the folding blade is moving away from a nip region, and a second rotation control, including controlling the roller driver to stop the rotation or slow down the rotation speed of the pair of folding rollers, while a tip portion of the folding blade is being withdrawn from a folded portion of a sheaf of sheets folded, and to restore the rotation speed of the pair of folding rollers to original rotation speed, after the tip portion of the folding blade has been removed from the folded portion of the sheaf of sheets folded.

A sheet conveying device includes a pair of rollers, a biasing member, a guide member, a biasing support, and a biasing force changer. The pair of rollers includes a first roller and a second roller disposed in contact with the first roller. The pair of rollers is configured to hold a sheet between the first roller and the second roller. The biasing member is configured to bias the first roller toward the second roller. The biasing support is configured to support the biasing member and has a guide target member configured to slide along the guide member to move the biasing support. The biasing force changer is configured to change a biasing force of the biasing member along with movement of the biasing support. The guide target member has a portion projecting into a sheet conveyance passage through which the sheet is conveyed by the pair of rollers.

An image forming apparatus that has a transfer device that includes an intermediate transfer belt that is tensioned by a plurality of support rollers, a secondary transfer roller that faces one of the support rollers via the intermediate transfer belt, a cam that adjust a pressing force that presses the intermediate transfer belt by the secondary transfer roller, a motor that drives the cam, and a conveyor that conveys a recording medium to a transfer nip formed between the intermediate transfer belt and the secondary transfer roller is provided with a controller that controls an operation of the motor. The controller executes first control of operating the motor with a constant torque and stopping the motor when a rotation angular speed of the motor is less than or equal to a first threshold and second control of operating the motor at a predetermined timing to adjust a transfer nip amount.

A dispenser for dispensing sheet product is provided. The dispenser includes a housing with an outlet through which sheet product is dispensed. A knife drum is rotatable with respect to the housing. A knife is movable between a retracted position within the knife drum and an extended position where the knife protrudes outside of the knife drum to cut the sheet product. A cam follower surface is fixed with respect to the housing. A cam follower is attached to the knife and operable to engage the cam follower surface and travel therealong to transition the knife between the retracted position and the extended position. A spring assembly biases the knife drum during rotation toward a predetermined position. The spring assembly comprises a first spring and a second spring. The spring assembly is attached at a single mount position that is fixed with respect to the housing.

A sheet conveyance apparatus includes a cover unit having a first guide, a base unit to support the cover unit in an openable and closable manner, and having a second guide, the first guide and the second guide forming a conveyance path in a state where the cover unit is closed with respect to the base unit, and a sheet feeding unit detachable from the cover unit. In addition, a cover member is supported by the cover unit to be pivotable between a closed position and covers at least a portion of the feeding unit and an open position where the portion of the feeding unit is exposed. The cover member moves from the closed position to the open position by being pressed by the holder while the feeding unit is detached from the cover unit.

In some examples, a sheet processing machine includes at least one infeed system including at least one transport means including at least one upper holder and at least one lower holder. The at least one transport means can be and/or is arranged in at least three states: a maximally closed state corresponding to a minimal distance, a minimally closed state corresponding to a maximal distance, and an at least one mean state corresponding to at least one mean distance between at least one upper holding surface at least of the respective upper holder, and at least one lower holding surface of the lower holder of the at least one transport means that is assigned to the respective upper holder. During a machine cycle, the at least one transport means has each of the minimally closed state, the maximally closed state, and the at least one mean state at least once.

A diverting system is proposed for diverting boxes from normal production flow. One embodiment comprises a diverter with a diverter surface, a diverter cam in contact with the diverter, a diverter cam shaft connected to the top diverter cam such that rotation of the diverter cam shaft causes rotation of the diverter cam, and an electric motor connected to the diverter cam shaft and configured to rotate the diverter cam shaft. The diverter cam is configured to control position of the diverter as the diverter cam rotates such that rotation of the diverter cam causes the diverter surface to move from a position above normal production flow to a diverting position within the normal production flow.

A feeding device includes a stacked portion on which materials to be fed are stacked, a feeding roller that feeds the materials to be fed stacked on the stacked portion, a cam that performs first rotation in a state of being in contact with a mounting member on which the feeding roller is mounted and raises the feeding roller, an elastic member that lowers the raised feeding roller to the stacked portion while causing the cam that is in contact with the mounting member to perform second rotation with an elastic force acting on the mounting member, and an applying unit that applies a rotation resistance to the cam performing the second rotation.

A sheet conveyance apparatus includes a cover unit, a base unit, a roller unit configured to be detachable from the cover unit, and comprising a roller configured to convey the sheet along a conveyance path and a holder comprising an arm portion configured to extend in a width direction orthogonal to a sheet conveyance direction, a cam configured to swing the holder by rotating, and a cover member configured to be openable and closable with respect to the cover unit and configured to cover at least a portion of the arm portion against the conveyance path in a closed state, the cover member being opened by being pressed by the arm portion in a case where the roller unit is detached from the cover unit.