Abstract: A print apparatus is disclosed. In some examples, the print apparatus comprises a print head to deposit print agent onto a substrate; a detector to detect a fiducial; a first light source to back-illuminate the substrate, such that light from the first light source is to be detected by the detector through the substrate; and processing apparatus.

Abstract: The present disclosure refers to a cutter assembly for a printer, the cutter assembly including: a cutter module including a cutting blade; a support element extending along a cutting direction; and a carriage module to move the cutter module along the support element; wherein the carriage module is moved by a motor, the motor being controlled by a controller to move at a substantially constant speed along the cutting direction, and wherein the controller monitors a power signal of the motor and detects a cutting feature in the cutting direction based on the power signal.

Abstract: A print apparatus is disclosed. In some examples, the print apparatus comprises a print head to deposit print agent onto a substrate; a detector to detect a fiducial; a first light source to back-illuminate the substrate, such that light from the first light source is to be detected by the detector through the substrate; and processing apparatus.

Abstract: Examples herein provide a method, which includes printing an image and fiducial marks on a first side of a print medium. The fiducial marks include first marks ahead of the image, wherein two of the first marks are end marks at a first distance from respective opposite edges of the print medium, and each first mark has a first length and is located at a second distance from a beginning edge of the image. The fiducial marks also include second marks along a length of the print medium, wherein each second mark is at the first distance from the respective opposite edges, has a second length smaller than the first length, and is at a third distance from another second mark. The method includes scanning the fiducial marks and printing a registered mirrored copy of the image on the second side of the print medium using the scanned fiducial marks.

Abstract: Examples herein provide a method, which includes printing an image and fiducial marks on a first side of a print medium. The fiducial marks include first marks ahead of the image, wherein two of the first marks are end marks at a first distance from respective opposite edges of the print medium, and each first mark has a first length and is located at a second distance from a beginning edge of the image. The fiducial marks also include second marks along a length of the print medium, wherein each second mark is at the first distance from the respective opposite edges, has a second length smaller than the first length, and is at a third distance from another second mark. The method includes scanning the fiducial marks and printing a registered mirrored copy of the image on the second side of the print medium using the scanned fiducial marks.

Abstract: Examples herein provide a method. The method includes printing first color patches at a first location on a first side of a print medium. The method includes generating an international color consortium (“ICC”) profile of the first side by characterizing the first color patches using a spectrophotometer. The method includes printing, using the ICC profile of the first side, second color patches at a second location on the first side of the print medium. The method includes printing third color patches on a second side of the print medium, the third patches being a registered mirrored copy of the second patches. The method includes generating an ICC profile of the second side by characterizing the registered second and third patches using the spectrophotometer.

Abstract: Example implementations relate to substrate permeability assessment. Some examples may determine whether voids are shown in an image of a substrate and whether there is a repeating pattern in the image. Some examples may also determine whether printing fluid would pass through the substrate during printing based on the determinations of whether voids are shown in the image and whether there is a repeating pattern in the image.

Abstract: According to one example, there is provided a method of generating a day/night image on a media. The method comprises obtaining an image to be printed as a front-to-back image, printing the obtained image on a first side of the media, processing the obtained image by flipping the image, applying a degree of edge removal, and applying a degree blur. The method further comprises printing the processed image on a reverse side of the media, such that the first printed image and printed modified image are substantially aligned with one another.

Abstract: Examples herein provide a method. The method includes printing first color patches at a first location on a first side of a print medium. The method includes generating an international color consortium (“ICC”) profile of the first side by characterizing the first color patches using a spectrophotometer. The method includes printing, using the ICC profile of the first side, second color patches at a second location on the first side of the print medium. The method includes printing third color patches on a second side of the print medium, the third patches being a registered mirrored copy of the second patches. The method includes generating an ICC profile of the second side by characterizing the registered second and third patches using the spectrophotometer.

Abstract: A platen protector for a printer device has a protector blanket to cover a printer platen of the printer device to prevent from causing scratches on print media by the printer platen. The platen protector has a fixing system to fixate the platen protector relative to the printer platen. The protector blanket is porous to pass through vacuum applied by the printer platen to attract print media.

Abstract: In some examples, a method of controlling printing to a print medium includes, while printing an image to a print surface of the print medium, determining deformations of slices of the image caused by deformation of the print medium. The determining includes reading first fiducial marks printed on the print medium, determining a first deformation of a first slice of the slices based on the first fiducial marks, reading second fiducial marks printed on the print medium, and determining a second deformation of a second slice of the slices based on the second fiducial marks.

Abstract: In some examples, a method of controlling printing to a print medium includes, while printing an image to a print surface of the print medium, determining deformations of slices of the image caused by deformation of the print medium. The determining includes reading first fiducial marks printed on the print medium, determining a first deformation of a first slice of the slices based on the first fiducial marks, reading second fiducial marks printed on the print medium, and determining a second deformation of a second slice of the slices based on the second fiducial marks.

Abstract: According to one example, there is provided a method of generating a day/night image on a media. The method comprises obtaining an image to be printed as a front-to-back image, printing the obtained image on a first side of the media, processing the obtained image by flipping the image, applying a degree of edge removal, and applying a degree blur. The method further comprises printing the processed image on a reverse side of the media, such that the first printed image and printed modified image are substantially aligned with one another.

Abstract: A printer is disclosed. The printer has a media control system to control the tension in media loaded in a paper path in the printer. A motor in the media control system is characterized to determine a plurality of motor characteristics. The media control system uses the motor characteristics to adjust the control signal to the motor.

Abstract: A method for detecting a demountable accessory in an image-forming device is disclosed. The image-forming device comprises a controller, a print platen suitable for receiving a substrate, and a handling mechanism. The print platen has an optical sensor associated therewith adapted to capture an image of an item on the print platen. A first image is captured. The handling mechanism carries out an adjustment action suitable for adjusting the position of the substrate on the print platen. A second image is captured. The first and second images are analyzed to identify any changes and of the captured images is analyzed to detect an accessory identifier. The presence of an item on the platen is determined from the analysis.

Abstract: Example implementations relate to substrate permeability assessment. Some examples may determine whether voids are shown in an image of a substrate and whether there is a repeating pattern in the image. Some examples may also determine whether printing fluid would pass through the substrate during printing based on the determinations of whether voids are shown in the image and whether there is a repeating pattern in the image.

Abstract: A method for detecting a demountable accessory in an image-forming device is disclosed. The image-forming device comprises a controller, a print platen suitable for receiving a substrate, and a handling mechanism. The print platen has an optical sensor associated therewith adapted to capture an image of an item on the print platen. A first image is captured. The handling mechanism carries out an adjustment action suitable for adjusting the position of the substrate on the print platen. A second image is captured. The first and second images are analysed to identify any changes and of the captured images is analysed to detect an accessory identifier. The presence of an item on the platen is determined from the analysis.

Abstract: A printer is disclosed. The printer has a media control system to control the tension in media loaded in a paper path in the printer. A motor in the media control system is characterized to determine a plurality of motor characteristics. The media control system uses the motor characteristics to adjust the control signal to the motor.

Abstract: The invention relates to a print media loading system for a printer, wherein the printer includes a print media input, a print media output, and a print media path located between the print media input and the print media output. The print media loading system comprises a print media drive mechanism associated with the print media input, and print media output device associated with the print media output. The print media output device is operatively coupled to the print media drive mechanism so as to control feeding of the print media through the print media path by actuation of the print media output device. The invention also provides a corresponding printing system and a method of loading print media into a printer.

Abstract: A media transport method includes applying a nominal tension to a media extending between and in contact with a media drive roller of a drive roller assembly and a media output roller of an output roller assembly by the media output roller. The media transport method also includes advancing the media toward and away from a media support member disposed between the media drive roller and the media output roller and in contact with the media by the media drive roller. The media transport method also includes determining whether the media drive roller is in a rotating state within a predetermined time period after being in a non-rotating state by a restart period determination module and a kinematic condition exists corresponding to a non-synchronized state between rotation of the media drive roller and the media output roller by a kinetic condition determination module.