A correction mechanism of the belt conveyor device, including a pair of inclined bearings and a pair of main-body guides, corrects meanders of a belt. The pair of inclined bearings include a pair of bearing portions, respectively, and a pair of inclined portions, respectively, that are inclined symmetrically with respect to an axial direction of the rollers. The pair of main-body guides are put into contact with the pair of inclined portions, respectively, and make an end side of the rollers in the axial direction moved in a direction perpendicular to the axial direction, together with the pair of inclined bearings during meandering of the belt. The pair of inclined bearings are fittable to and removable from a shaft portion of one of the rollers.

A correction mechanism of the belt conveyor device, including a pair of inclined bearings and a pair of main-body guides, corrects meanders of a belt. The pair of inclined bearings include a pair of bearing portions, respectively, and a pair of inclined portions, respectively, that are inclined symmetrically with respect to an axial direction of the rollers. The pair of main-body guides are put into contact with the pair of inclined portions, respectively, and make end portions of the rollers in the axial direction moved in a direction perpendicular to the axial direction, together with the pair of inclined bearings during meandering of the belt. The pair of inclined portions and the pair of main-body guides are placed below the rollers. The pair of main-body guides are placed below the pair of inclined portions.

A paper sorting device includes: a stacking conveyor that receives continuously fed cut sheets to stack the cut sheets by sorting unit and that continuously conveys stacked cut sheets downstream on a unit-by-unit basis; and a stacker section arranged downstream of the stacking conveyor, capable of continuously stacking the stacked cut sheets conveyed from the stacking conveyor, at different positions on a placement surface.

A belt device for an image forming apparatus, includes an endless belt; a first and second support rollers, each including a rotary shaft, that support the belt with tension; a contacted member that contacts the belt; a shaft displacement device to displace any of the rotary shafts of the support rollers; and a main rotary shaft disposed at a side of the rotary shaft of the first support roller moved by the shaft displacement device along a stretching direction of the stretched surface of the endless belt that the contacted member contacts, relative to a contact portion between the endless belt and the contacted member, and at an opposite side of the contacted member in a direction perpendicular to the stretching direction of the endless belt. As the first support roller and the second roller rotate about the main rotary shaft, the endless belt is separated from the contacted member.

An inkjet recording device includes a movement unit configured to move a recording medium or a placement part for placing the recording medium thereon; a detection unit configured to continuously detect movement of the recording medium or the placement part; and a control unit configured to control the movement unit and the detection unit. The detection unit includes a gripping unit having a gripping part for gripping the recording medium or the placement part and a detection part for continuously detecting movement of the gripping unit. The gripping unit is configured to move in conjunction with the movement of the recording medium or the placement part by gripping the recording medium or the placement part by the gripping part. The control unit is configured to control the movement of the movement unit on the basis of a detection result by the detection part when the gripping unit is moved.

A belt device includes a belt wound around support rotators, to travel as the support rotators rotate; a belt contact member on a rotation shaft of one of the support rotators, to contact an end of the belt and move in an axial direction of the rotation shaft with the belt; a displacement member on the rotation shaft and including an inclined face to move the one support rotator, to move in the axial direction as the belt contact member moves; a guide to contact the inclined face and restrict a moving direction of the displacement member; a shaft support rotatably supporting the one support rotator and the rotation shaft; a restriction member to restrict movement of the one support rotator and the rotation shaft; and an elastically deformable intermediate member between the shaft support and the restriction member, to prevent the shaft support from contacting the restriction member.

A plurality of support rollers rotatably support a belt member. A first motor and a second motor each rotate one of the plurality of support rollers. In a normal mode, a normal control portion derives a load index value based on information on a load torque of the plurality of support rollers, and controls a second supply power supplied to the second motor based on power control data representing a correspondence between the load index value and a motor supply power. In a calibration mode, a calibration control portion corrects the power control data by comparing a speed detection value when a test drive control is being executed or a test actual value which is a power supplied to the second motor with a reference value.

A conveyor system for moving stacked webs of material has a first unit with at least three belts. Each belt is driven by a motor having a drive shaft with a pulley. The drive shaft of one motor is spaced from the drive shaft of another motor to define a routing along which the belts travel in parallel paths and are independently movable. Each belt has at least two product supports. A second unit is opposite of the first unit and forms a process zone with the first unit. In the process zone, the product support of one of the belts of the first unit engages one side of the stacked web material, and the second unit engages an opposite side of the stacked web material. The product supports move in a synchronized manner from an inlet to an outlet of the process zone at an adjustable interval.

A method of printing having the steps of transporting a print medium along a print station for printing on the print medium by means of an endless, air permeable transport belt positioned over a suction device for applying an underpressure to the print medium on the transport belt, wherein the transport belt comprises endless, non-permeable strips positioned between air permeable areas provided with openings and the suction device comprises a plurality of spaced apart support beams extending substantially in a main transport direction defined by the print station for supporting the transport belt; and controlling the position and/or orientation of the transport belt for aligning the print medium with respect to the print station, wherein each adjustment to the transport belt's position and/or orientation is restricted, such that the strips are maintained entirely overlapping the support beams.

A medium transport device includes a belt unit that is a unit having a transport belt configured to attract and transport a medium and that is rotatably supported on both sides in a width direction, which intersects a medium transport direction; a first support section that is disposed on one side of the belt unit in the width direction and that rotatably supports the belt unit; a second support section that is disposed on the other side of the belt unit in the width direction and that rotatably supports the belt unit; and a motor that is a power source for rotating the belt unit with respect to the first support section and the second support section, wherein: a handwheel is configured to be attached to and detached from an output shaft of the motor or a rotation shaft on a power transmission mechanism that transmits power from the motor to the belt unit.