Abstract: It is disclosed a printing fluid dispersing method for a printing system, the method comprising: transferring printing fluid from a supply to an element within the printing system by a pump wherein, between the supply and the element, a nozzle is provided comprising a plurality holes so that the transferring of printing fluid comprises forcing the printing fluid through the plurality of holes of the nozzle

Abstract: In an example of the disclosure, a driver correction specification is calculated based upon a time differential between a first sensor detection of a first portion of a leading edge of a media sheet and second sensor detection of a second portion of the leading edge. The driver correction specification is for causing skew correction of the media sheet as the media sheet moves along a media path to impact a blocker element. The driver is caused to operate according to the calculated driver correction specification.

Abstract: 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.

Abstract: It is disclosed a printing fluid dispersing method for a printing system, the method comprising: transferring printing fluid from a supply to an element within the printing system by a pump wherein, between the supply and the element, a nozzle is provided comprising a plurality holes so that the transferring of printing fluid comprises forcing the printing fluid through the plurality of holes of the nozzle

Abstract: In an example of the disclosure, a driver correction specification is calculated based upon a time differential between a first sensor detection of a first portion of a leading edge of a media sheet and second sensor detection of a second portion of the leading edge. The driver correction specification is for causing skew correction of the media sheet as the media sheet moves along a media path to impact a blocker element. The driver is caused to operate according to the calculated driver correction specification.

Abstract: In one example, a sheet media alignment system includes: a guide (12) defining a curved media path (14) that extends from an upstream part of the guide to a downstream part of the guide; a movable blocker (16, 56) to block the curved media path (14) at the downstream part of the guide, the blocker movable into and out of a blocking position in which the blocker is spaced from the downstream part of the guide a first distance; and a driver (24, 58) upstream from the curved media path to drive a media sheet into the guide along the curved media path and into the blocker. The driver is spaced from the upstream part of the guide a second distance greater than the first distance such that a media sheet driven into the blocker will buckle between the driver and the guide before it will buckle between the guide and the blocker.

Abstract: Lateral adjustment apparatus comprises a gripper to grip a print substrate, the gripper being mounted on a rotor rotatable about a lateral axis, and a lateral adjustment motor to drive movement of the gripper laterally along the rotor to adjust a lateral position of the print substrate. The lateral adjustment motor is mounted on the rotor.

Abstract: 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 substrate from the image to determine a distance of the print substrate from a predetermined location; and adjustment apparatus to adjust the entire substrate laterally, relative to the direction of transport of the substrate, based on the determined location.

Abstract: In one example of the disclosure, a first measurement of actual quantity of ink in a target cartridge is taken utilizing a scale. An incremental dosage quantity be deposited into the target cartridge in a dosing pass is determined based upon a desired quantity, the actual quantity, and an undershoot safety factor. A valve is opened to enable a pressure deposit of the incremental dosage quantity of ink to the target cartridge, and then closed. A residue cutter is utilized to scrape the valve and thereby make a scraper deposit of ink to the target cartridge. A second measurement of actual quantity of ink in the target cartridge is taken utilizing the scale. An additional dosage pass is performed if the second measurement is not within an accepted variance of the desired quantity. The making of dosing passes is discontinued if the second measurement is within the accepted variance.

Abstract: The present disclosure provides a method and system for delivering a high-viscosity fluid 300. In an example, a reciprocating a piston pumps a high-viscosity fluid 300 through a one-way check valve 130 into a pump chamber 125. Responsive to receipt of a request for a dose of the high-viscosity fluid 300, an output valve 135 in the pump chamber 125 is opened, and the piston is reciprocated in order to eject a dose of the high-viscosity fluid 300 from the pump chamber 125 through the output valve 135.

Abstract: In one example of the disclosure, a first measurement of actual quantity of ink in a target cartridge is taken utilizing a scale. An incremental dosage quantity be deposited into the target cartridge in a dosing pass is determined based upon a desired quantity, the actual quantity, and an undershoot safety factor. A valve is opened to enable a pressure deposit of the incremental dosage quantity of ink to the target cartridge, and then closed. A residue cutter is utilized to scrape the valve and thereby make a scraper deposit of ink to the target cartridge. A second measurement of actual quantity of ink in the target cartridge is taken utilizing the scale. An additional dosage pass is performed if the second measurement is not within an accepted variance of the desired quantity. The making of dosing passes is discontinued if the second measurement is within the accepted variance.

Abstract: 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 substrate from the image to determine a distance of the print substrate from a predetermined location; and adjustment apparatus to adjust the entire substrate laterally, relative to the direction of transport of the substrate, based on the determined location.

Abstract: In one example, a sheet media alignment system includes: a guide (12) defining a curved media path (14) that extends from an upstream part of the guide to a downstream part of the guide; a movable blocker (16, 56) to block the curved media path (14) at the downstream part of the guide, the blocker movable into and out of a blocking position in which the blocker is spaced from the downstream part of the guide a first distance; and a driver (24, 58) upstream from the curved media path to drive a media sheet into the guide along the curved media path and into the blocker. The driver is spaced from the upstream part of the guide a second distance greater than the first distance such that a media sheet driven into the blocker will buckle between the driver and the guide before it will buckle between the guide and the blocker.

Abstract: A method for determining a pump setpoint for delivering a desired volumetric flow rate of a substance through a channel comprises measuring a first volumetric flow rate through the channel for a first pump setpoint. The pump setpoint for delivering the desired volumetric flow rate is determined based on previously obtained performance curves of the pump and a flow resistance of the channel. Each performance curve represents the relation between flow rate and pressure at the pump's exit for a different setpoint. The flow resistance of the channel is determined based on said first volumetric flow rate and on the performance curves of the pump.

Abstract: A method for determining a pump setpoint for delivering a desired volumetric flow rate of a substance through a channel comprises measuring a first volumetric flow rate through the channel for a first pump setpoint. The pump setpoint for delivering the desired volumetric flow rate is determined based on previously obtained performance curves of the pump and a flow resistance of the channel. Each performance curve represents the relation between flow rate and pressure at the pump's exit for a different setpoint. The flow resistance of the channel is determined based on said first volumetric flow rate and on the performance curves of the pump.

Abstract: An ink tank apparatus usable with an image forming apparatus and methods of mixing ink in an ink tank apparatus are disclosed. The ink tank apparatus and methods include directing ink particles against at least one of an impeller and an interior surface of a head housing to reduce a particle size of the respective ink particles.

Abstract: An ink tank apparatus usable with an image forming apparatus and methods of mixing ink in an ink tank apparatus are disclosed. The ink tank apparatus and methods include directing ink particles against at least one of an impeller and an interior surface of a head housing to reduce a particle size of the respective ink particles.