B41J13/32

SYSTEM AND METHOD FOR AUTOMATED SHEET 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.

SYSTEM AND METHOD FOR AUTOMATED SHEET 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.

METHOD FOR PRINTING AN IMAGE ON A SUBSTRATE ON A SUPPORT BODY
20170217212 · 2017-08-03 · ·

A method is provided for printing an image on a substrate on a support body of a printing apparatus, the method including the steps of: providing a masking sheet on the support body; deriving from the image a boundary outline of the image; selecting a location on the support body for printing the image; printing the boundary outline of the image on the masking sheet at the selected location of the support body; printing at least one distance marker on at least one side of the printed boundary outline on the masking sheet, said distance marker indicating a distance from the boundary outline; placing the substrate on the masking sheet at the selected location of the support body using the boundary outline; determining an offset of the substrate relative to the printed boundary outline by way of the printed distance marker, after the substrate placing step; and printing the image on the substrate based on the determined offset of the substrate relative to the printed boundary outline.

RECORDING DEVICE
20220184977 · 2022-06-16 ·

A recording device includes a pair of transport rollers for transporting a medium, a rotating body provided downstream of the pair of transport rollers in a transport path of the medium and configured to switch between a first state in which the medium being nipped by the pair of transport rollers is passed and a second state in which the the medium being nipped by the pair of transport rollers is not passed, and a recording portion performing recording on the medium by discharging a liquid, in which the pair of transport rollers includes a first toothed roller having a plurality of convex portions configured to make point contact with the medium and nipping the medium by the plurality of the convex portions, and, the pair of transport rollers is arranged only in a central region when the transport path is divided into three in a rotating shaft direction.

Sheet registration using rotatable frame

Alignment apparatuses include a frame and contact elements connected to the frame. The contact elements contact items that are to be transported in a processing direction relative to the frame. The contact elements are in permeant fixed positions relative to the frame, and do not move relative to the frame. Adjustable mounts are connected to the frame and move the frame in the processing direction and in a perpendicular cross-processing direction. A controller is electrically connected to the adjustable mounts, and the controller is adapted to control the adjustable mounts to simultaneously move the frame and all the contact elements in the cross-processing direction and the processing direction while rotating the frame. Methods laterally shift imaging on sheets that have had rotational correction performed by such alignment apparatuses.

PRINTING APPARATUS AND CONTROL METHOD OF PRINTING APPARATUS
20230249480 · 2023-08-10 ·

The printing apparatus including: a light source that emits light to a first surface of a printing sheet; a sensor that detects the light reflected from the printing sheet; a reflection member located at a position facing the sensor and coming into contact with a second surface opposite to the first surface of the printing sheet; and a control unit configured to determine a type of the printing sheet based on a feature amount obtained by the sensor detecting the light from a plurality of positions of the printing sheet being conveyed, wherein a first area and a second area whose reflectance is lower than that of the first area are included in the reflection member and a position corresponding to the first area and a position corresponding to the second area are included in the plurality of positions.

PRINTING APPARATUS AND CONTROL METHOD OF PRINTING APPARATUS
20230249480 · 2023-08-10 ·

The printing apparatus including: a light source that emits light to a first surface of a printing sheet; a sensor that detects the light reflected from the printing sheet; a reflection member located at a position facing the sensor and coming into contact with a second surface opposite to the first surface of the printing sheet; and a control unit configured to determine a type of the printing sheet based on a feature amount obtained by the sensor detecting the light from a plurality of positions of the printing sheet being conveyed, wherein a first area and a second area whose reflectance is lower than that of the first area are included in the reflection member and a position corresponding to the first area and a position corresponding to the second area are included in the plurality of positions.

LATERAL ADJUSTMENT OF PRINT SUBSTRATE BASED ON A CAMERA IMAGE

A printing device is provided comprising a camera to capture an image of at least a portion of a print substrate; a controller to determine a location of a portion of a side edge of the print substrate from the image to determine a distance of the print substrate from a predetermined location; and an adjustment apparatus to adjust the entire substrate laterally, relative to the direction of transport of the print substrate, based on the determined location.

LATERAL ADJUSTMENT OF PRINT SUBSTRATE BASED ON A CAMERA IMAGE

A printing device is provided comprising a camera to capture an image of at least a portion of a print substrate; a controller to determine a location of a portion of a side edge of the print substrate from the image to determine a distance of the print substrate from a predetermined location; and an adjustment apparatus to adjust the entire substrate laterally, relative to the direction of transport of the print substrate, based on the determined location.

Alignments of media using multiple passes

An example of apparatus to align media. The apparatus includes a printer assembly to form markings a first side of a media. The apparatus also includes a sensor to detect a backside pattern on each pass at multiple locations. The apparatus includes a processor in communication with the sensor. The processor is to compare the backside pattern measured on multiple passes to determine offset amounts. The apparatus also includes a controller to adjust the media relative to the printer assembly based on the offset values.