A sheet conveying device, which is included in an image forming apparatus and a post processing device, includes multiple position detectors and a position corrector. The multiple position detectors are aligned along a sheet conveying direction and configured to detect a side end of a sheet. The position corrector is configured to convey the sheet and correct a position of the sheet based on a positional deviation amount of the sheet, obtained by a detection result of the multiple position detectors. The positional deviation amount of the sheet is obtained by an extreme downstream position detector in the sheet conveying direction, of the multiple position detectors. A position of a subsequent sheet is corrected based on a sum of the positional deviation amount of the sheet and a positional deviation amount of the subsequent sheet.

A method of printing and stacking sheets improves the relative alignment of images in a stack of printed sheet. The method includes feeding a sheet at least twice past a printhead assembly for printing an image on both sides of the sheet, wherein in the first and second passes the respective front and back images are aligned with respect to a first edge of the sheet by detecting a skew angle between the first and second edges and applying the skew angle to align the front and back images; and stacking the sheet, wherein the sheet is registered to a predetermined stacking reference direction by one of its edges, and wherein during the stacking, the sheet is registered by its first edge.

A paper sheet transport apparatus (10) includes transport member that is slidable along the widthwise direction of a transport path (11) (e.g., a drive roller (36) and a driven roller (38)), and a paper sheet detection unit (inlet-side paper sheet detection sensor (70)) that is arranged on an upstream side of the transport member in the paper sheet transport direction along the transport path (11) and detects the position of the paper sheet in the widthwise direction of the transport path (11). A control unit (80) calculates an amount of movement of the transport member based on the position of the paper sheet in the widthwise direction of the transport path (11) detected by the paper sheet detection unit and a previously set predetermined position of the paper sheet in the widthwise direction of the transport path (11).

A sheet conveying device, which is included in an image forming apparatus and a post processing device, includes multiple position detectors and a position corrector. The multiple position detectors are aligned along a sheet conveying direction and configured to detect a side end of a sheet. The position corrector is configured to convey the sheet and correct a position of the sheet based on a positional deviation amount of the sheet, obtained by a detection result of the multiple position detectors. The positional deviation amount of the sheet is obtained by an extreme downstream position detector in the sheet conveying direction, of the multiple position detectors. A position of a subsequent sheet is corrected based on a sum of the positional deviation amount of the sheet and a positional deviation amount of the subsequent sheet.

An apparatus for aligning at least one note of value along a transport path has at least one transport element and at least one first drive unit for driving the transport element. The driven transport element moves the note of value along the transport path in a transport direction. The transport element includes an endless drive belt, which is deflected over at least two rotatably mounted deflecting elements and a second drive unit for displacing one of the deflecting elements along its axis of rotation. By displacing the deflecting element, the note of value contacting the belt is moved obliquely to the transport direction. A further apparatus includes at least one vane wheel by which the note of value is movable transversely to the transport direction.

A folding arrangement including a flap lifting assembly located at a drop conveyor discharge end and including a pivoting arm with a flap engaging surface that is movable between a first, flap-lifting position and a second, pass-through position is provided. A folding assembly includes a receiving conveyor with a receiving conveyor feed end positioned below the drop conveyor discharge end, and a folding finger above the receiving conveyor feed end. The product-substrate combination is driven by the drop conveyor into contact with the flap engaging surface in the first position to lift the flap as the product-substrate combination is discharged from the drop conveyor discharge end towards the receiving conveyor feed end, and the folding finger contacts the flap of the product-substrate combination to complete folding of the flap to a second angled position onto the product as the product-substrate combination pivots the flap engaging surface to the second position.

An image forming apparatus includes: a pair of rollers for conveying paper; a rocking mechanism for rocking the pair of rollers in a second direction orthogonal to a first direction, the first direction being a paper conveying direction; an upstream pair of rollers provided upstream of the pair of rollers in the paper conveying direction for conveying the paper; an upstream rocking mechanism corresponding to the upstream pair of rollers for rocking the upstream pair of rollers in the second direction; a first paper detector for detecting an end position of the paper in the second direction; and a controller controlling the rocking mechanism based on the paper end position to effect first rocking correction in which the pair of rollers is rocked, wherein the controller controls the upstream rocking mechanism to effect second rocking correction in which only the upstream pair of rollers is rocked.

A lateral positioning device (100) for a sheet element (20, 20) in a sheet element processing machine; a detector lever (130) articulated relative to a horizontal axis, which performs a descending movement from a high position to a low position; a first end (132) of the detector lever (130) contacts, in a low position of the lever, with an upper face of the sheet element. A second end (133) of the detector lever (130) is fitted with a target (135) that cooperates with a position detector (140) to generate a signal dependent on the thickness of the sheet element (20, 20) and the number of sheet elements (20, 20) present at the level of the first end (132) of the detector lever (130).

According to an example, a media advance mechanism may comprise a movable assembly, a fixed assembly operatively coupled to the movable assembly, and an actuator to rotate the movable assembly with respect to the fixed assembly. The movable assembly may comprise a lateral guide extending along a length of the media path and a conveyor belt oriented towards the lateral guide, wherein the conveyor belt is to move a medium towards the lateral guide.

An image forming apparatus according to the present disclosure includes a skew correction device and a cleaning device. The skew correction device includes first conveying rollers. The first conveying rollers are rotatable about a predetermined rotation fulcrum. The first conveying rollers are, before a sheet, which is skewed, enters a device body, rotated from an initial position, and, when the sheet enters the device body, rotated back to the initial position while nipping and conveying the sheet. The cleaning device includes a toner conveying member that conveys residual toner on an image-carrying member to a predetermined container. Both the first conveying rollers and the toner conveying member operate by consecutively receiving a rotational driving force from a common electric motor.