摘要:
A method of detecting an alignment error includes the steps of controlling a first portion of one or more imaging units to image on a substrate a first plurality of substantially parallel lines extending along a first direction and a second plurality of substantially parallel lines extending along a second direction and controlling a second portion of one or more imaging units to image a third plurality of substantially parallel lines extending along the first direction and a fourth plurality of substantially parallel lines extending along the second direction. One or more distances between adjacent lines of the second plurality of lines are varied and one or more distances between adjacent lines of the fourth plurality of lines are varied. Further, the lines imaged by the first and second portions form an alignment pattern. The method further includes the steps of collecting data relating to the alignment pattern and analyzing the collected data to determine an alignment error between the first and second portions of the one or more imaging units.
摘要:
A printing system includes a print unit and a cleaning unit. The print unit comprises a carrier for a plurality of inkjet cartridges. The cleaning unit includes a wiping unit, a cleaning bay, and a wiper washer unit. The wiping unit includes wiper blades and the wiper washer unit includes a plurality of spray nozzles that spray a fluid. A controller is adapted to transport the carrier into the cleaning bay, transport the wiping units such that the wiper blades clean the inkjet cartridges, and actuate the spray nozzles to wash the wiper blades. The carrier may be positioned in the cleaning bay when the inkjet cartridges are not used for printing and the controller controls at least one of humidity and temperature in the cleaning bay when the carrier plate is positioned therein.
摘要:
A method of printing on a substrate includes the steps of instructing a first imaging unit to print a first image and a registration mark on a substrate contemporaneously during a production run and detecting the registration mark. The method further includes the steps of determining a position on the substrate where a second image is to be printed in accordance with the detection of the registration mark and instructing a second imaging unit to print the second image on the substrate in accordance with the determined position.
摘要:
A printing system includes a print unit and a cleaning unit. The print unit comprises a carrier for a plurality of inkjet cartridges. The cleaning unit includes a wiping unit, a cleaning bay, and a wiper washer unit. The wiping unit includes wiper blades and the wiper washer unit includes a plurality of spray nozzles that spray a fluid. A controller is adapted to transport the carrier into the cleaning bay, transport the wiping units such that the wiper blades clean the inkjet cartridges, and actuate the spray nozzles to wash the wiper blades. The carrier may be positioned in the cleaning bay when the inkjet cartridges are not used for printing and the controller controls at least one of humidity and temperature in the cleaning bay when the carrier plate is positioned therein.
摘要:
A printing system deposits a principal substance on a surface and further deposits a gating agent on selectable portions of a print medium. A portion of the principal substance is transferred from the surface to the print medium after the gating agent is applied thereto. The gating agent substantially determines where the principal substance is deposited onto the print medium. A production system and method are also disclosed, as is a production apparatus.
摘要:
A printing system includes a printer that prints only a sense mark on a substrate and an imaging unit. The imaging unit prints data onto the substrate and includes a plurality of printheads. The printing system also includes a sensor that detects the sense mark and a controller that instructs the imaging unit to print data onto the substrate, wherein the controller distributes print data among the plurality of printheads.
摘要:
Apparatus and methods for controlling application of a substance to a substrate involve the use of a gating agent that blocks the substance from or attracts the substance to the substrate. The apparatus and methods may utilize ink jet technology to apply the gating agent directly to the substrate or to an intermediate surface. The substance may be an ink, an electrically conductive material, a magnetic material, a carrier for a therapeutic, diagnostic, or marking substance other than an ink, or a carrier for any other type of substance.
摘要:
A method and assembly varies the image density of ink from a plurality of ink jet nozzles to provide substantially uniform ink density. Electronically and automatically the electrical power consumption of an ink jet device having an electrical heater is measured (typically by measuring the current draw), and in response to that measurement, if necessary, pulse or voltage supplied to the heater or heaters of each of the ink jet devices is automatically adjusted. More electrical power is supplied if greater image density is required for a particular ink jet device, and less electrical power if lower image density is desired. During typical operation all pulse widths are reset to default settings, the signal received is calibrated, a pattern generator is signalled to provided test data, the present peak electrical current consumed by each nozzle heater is sampled, and the pulse width for each nozzle heater is set based upon the current sample.
摘要:
A method and apparatus for transferring a principal substance applies the principal substance onto a surface and deposits drops of a gating agent onto a first portion of the principal substance applied to the first surface. The depositing of each drop of gating agent is individually controlled. A second portion of the principal substance not covered by the gating agent is transferred from the first surface to a second surface. A printing system adapted to transfer principal substance from a first surface to a second surface is also disclosed.
摘要:
Apparatus and methods for controlling application of a substance to a substrate involve the use of a gating agent that blocks the substance from or attracts the substance to the substrate. The apparatus and methods may utilize ink jet technology to apply the gating agent directly to the substrate or to an intermediate surface. The substance may be an ink, an electrically conductive material, a magnetic material, a carrier for a therapeutic, diagnostic, or marking substance other than an ink, or a carrier for any other type of substance.