Abstract: Certain examples of conveyors are described. The conveyors comprise a belt for conveying an article, wherein the belt has a plurality of holes. The conveyors further comprise sensors and the sensors and the plurality of holes are arranged such that the article is detectable when both the sensors sense a material simultaneously. Dryers, print substrate pre-treatment apparatus and printing systems are also described.

Abstract: Certain examples of conveyors are described. The conveyors comprise a belt for conveying an article, wherein the belt has a plurality of holes. The conveyors further comprise sensors and the sensors and the plurality of holes are arranged such that the article is detectable when both the sensors sense a material simultaneously. Dryers, print substrate pre-treatment apparatus and printing systems are also described.

Abstract: An impression medium usable with an impression member of a printing system is disclosed. The impression medium includes a top layer and a backing layer disposed between the top layer and the impression member.

Abstract: A method and apparatus are provided for assessing the operation of a col or printing system (10) by measuring color plane mis-registration. The printing system (10) is caused to print a multi-sheet test job (26) with corresponding test points on each sheet distributed vertically and horizontally over the sheet. The test points comprise test markings for determining horizontal and vertical color plane mis-registration values. These test markings are measured by an imaging subsystem (30) to determine horizontal and vertical color plane mis-registration values (31) for the printing colors. The mis-registration values are then analyzed (33, 36) by a processing subsystem (32) to derive a plurality of mis-registration parameters that provide different respective views of mis-registration behaviour across the test sheets. An output is provided based on the mis-registration parameters.

Abstract: Detecting an issue in a digital printer that has an optical element positioned to direct a laser beam towards a photoconductor surface may include sending optical element position commands to move the optical element to compensate for inconsistent movements of a photoconductor drum and creating a record of the optical element position commands.

Abstract: An impression medium usable with an impression member of a printing system is disclosed. The impression medium includes a top layer and a backing layer disposed between the top layer and the impression member.

Abstract: A system and a method for implementing an automatic color plane misregistration (CPR) calibration procedure on a printing device are provided. The system includes a printing device. The printing device includes a user interface configured to receive a set of user inputs corresponding to parameters of a desired print project. The printing device also includes an automatic CPR calibration component configured to automatically implement a CPR calibration procedure in response to a user-defined trigger condition being met. The user-defined trigger condition can be programmable and stored in a memory.

Abstract: A method, diagnostic tool and system are provided for evaluating printing defects. A captured image of a printed sheet is received and a profile generated of the printed sheet, this profile being representative of tonal variations in the printed sheet. The profile is analyzed in a plurality of different scales and an assessment made of the significance of one or more features of a printing defect throughout the plurality of different scales. From the assessed significance of the one or more features, an evaluation is carried out, in each of the plurality of different scales, of the severity of the printing defect.

Abstract: A method and apparatus are provided for assessing the operation of a col or printing system (10) by measuring color plane mis-registration. The printing system (10) is caused to print a multi-sheet test job (26) with corresponding test points on each sheet distributed vertically and horizontally over the sheet. The test points comprise test markings for determining horizontal and vertical color plane mis-registration values. These test markings are measured by an imaging subsystem (30) to determine horizontal and vertical color plane mis-registration values (31) for the printing colors. The mis-registration values are then analyzed (33, 36) by a processing subsystem (32) to derive a plurality of mis-registration parameters that provide different respective views of mis-registration behaviour across the test sheets. An output is provided based on the mis-registration parameters.

Abstract: Detecting an issue in a digital printer that has an optical element positioned to direct a laser beam towards a photoconductor surface may include sending optical element position commands to move the optical element to compensate for inconsistent movements of a photoconductor drum and creating a record of the optical element position commands.

Abstract: A system and a method for implementing an automatic color plan misregistration (CPR) calibration procedure on a printing device are provided. The system includes a printing device. The printing device includes a user interface configured to receive a set of user inputs corresponding to parameters of a desired print project. The printing device also includes an automatic CPR calibration component configured to automatically implement a CPR calibration procedure in response to a user-defined trigger condition being met. The user-defined trigger condition can be programmable and stored in a memory.

Abstract: A method, diagnostic tool and system are provided for evaluating printing defects. A captured image of a printed sheet is received and a profile generated of the printed sheet, this profile being representative of tonal variations in the printed sheet. The profile is analyzed in a plurality of different scales and an assessment made of the significance of one or more features of a printing defect throughout the plurality of different scales. From the assessed significance of the one or more features, an evaluation is carried out, in each of the plurality of different scales, of the severity of the printing defect.