Techniques for determination of size of printable medium are described. In an example, a printing device includes an adjuster that is movable based on a size of a printable medium to be fed to the printing device. A first element is coupled to the adjuster and moves with the adjuster to indicate a position of the adjuster. A second element is movable relative to the adjuster. A position signal indicative of a distance between the second element and the first element is generated. The position signal can be used to determine the size of the printable medium.

Techniques for determination of size of printable medium are described. In an example, a printing device includes an adjuster that is movable based on a size of a printable medium to be fed to the printing device. A first element is coupled to the adjuster and moves with the adjuster to indicate a position of the adjuster. A second element is movable relative to the adjuster. A position signal indicative of a distance between the second element and the first element is generated. The position signal can be used to determine the size of the printable medium.

A method, a printing device and a calibration module to check an alignment element of a printer by comparing a relative alignment of a calibration mark with respect to a reference mark, wherein the calibration mark indicates an alignment of the alignment element and the reference mark indicates an alignment of a printhead scanning direction of the printer.

A method, a printing device and a calibration module to check an alignment element of a printer by comparing a relative alignment of a calibration mark with respect to a reference mark, wherein the calibration mark indicates an alignment of the alignment element and the reference mark indicates an alignment of a printhead scanning direction of the printer.

A sheet processing system for automated sheet adjustment includes a sensor system which captures at least a first image of a sheet of print media as the sheet is conveyed on a main transport path between a print media supply module and a marking device of an image rendering module. A control module computes a lateral error for the sheet, based on the captured at least first image, and computes an adjustment based on the computed lateral error. A sheet transport path adjustment mechanism translates a first portion of the main transport path relative to a second portion of the main transport path, based on the computed adjustment.

A sheet processing system for automated sheet adjustment includes a sensor system which captures at least a first image of a sheet of print media as the sheet is conveyed on a main transport path between a print media supply module and a marking device of an image rendering module. A control module computes a lateral error for the sheet, based on the captured at least first image, and computes an adjustment based on the computed lateral error. A sheet transport path adjustment mechanism translates a first portion of the main transport path relative to a second portion of the main transport path, based on the computed adjustment.

A tape having a strip shape extending in a lengthwise direction and a widthwise direction includes: a subject surface located on the tape and exposed in a thickness direction; a first marker provided on the subject surface and being greater than the subject surface in reflectivity to light with a particular wavelength; and a second marker provided on the subject surface and being less than the subject surface in the reflectivity. At least a portion of the first marker and at least a portion of the second marker are identical to each other in position in the widthwise direction. At least a portion of one of the first marker and the second marker and at least a portion of another of the first marker and the second marker are different from each other in position in the lengthwise direction.

A tape having a strip shape extending in a lengthwise direction and a widthwise direction includes: a subject surface located on the tape and exposed in a thickness direction; a first marker provided on the subject surface and being greater than the subject surface in reflectivity to light with a particular wavelength; and a second marker provided on the subject surface and being less than the subject surface in the reflectivity. At least a portion of the first marker and at least a portion of the second marker are identical to each other in position in the widthwise direction. At least a portion of one of the first marker and the second marker and at least a portion of another of the first marker and the second marker are different from each other in position in the lengthwise direction.

When duplex printing non-rectangular sheets of printable media, the sheets require proper registration to prevent misalignment of front and back images. This is ensured by: determining relative orientations of three different edges of a sheet being transported towards print station on a first pass; registering the sheet on the first pass by aligning one of the edges with respect to a predetermined alignment direction; printing a first image on a first side of the registered sheet; flipping the sheet on a second pass; registering the flipped sheet by aligning one of the edges with respect to a predetermined alignment direction; and printing a second image on a second side of the registered, flipped sheet aligned with the first image based on the determined relative orientations.

Systems and methods are provided for configuring media transport flow paths for directing input image receiving media, including of different types, in sheet or roll form from multiple axes to provide wider latitude in selecting particular input image receiving media and combinations of input image receiving media to support execution of a print job. The disclosed schemes are directed at using one or more stationary turn bars disposed generally at 45° in an input media transport path approaching a marking module in an image forming system to allow for sheets or sheeted materials to be positioned at 90° to the in-line input image receiving media transport path directed toward the marking module thus allowing for flexibility in selection among various sources of stacked, pallet and rolled media.