摘要:
A method of reducing intermittent weak or missing (IWM) jet failures in a phase change ink imaging device comprises fluidly connecting a positive pressure source to a print head assembly of a phase change ink imaging device. The print head assembly includes a plurality of ink jets for emitting ink drops onto an ink receiver. The method includes activating the pressure source to deliver a positive pressure pulse to the print head assembly. The pressure pulse is delivered at substantially a purge pressure. The pressure pulse has a pulse duration such that the pressure pulse bulges ink from the plurality of ink jets without emitting ink from the plurality of ink jets.
摘要:
A method adjusts operation of a printer in accordance with an analysis of image content used to generate printed images. The method includes measuring image content of a first print image, comparing the measured image content to a predetermined threshold, and altering a print process parameter to adjust operation of a printer component in response to the measured image content exceeding the threshold.
摘要:
A method enables an ink jet imaging device to normalize the driving signals for the ink jets within a print head of the device. The method includes generating an ink jet driving signal at an initial voltage and a particular resolution, coupling the ink jet driving signal to an ink jet for selective emission of ink from the ink jet in accordance with the driving signal, and detecting whether continuity for a line formed on the ink receiver by the emission of ink from the ink jet is substantially continuous.
摘要:
A method of providing access to an online marketplace via a printer driver that is in communication with a networked printing device. The marketplace offers printer capabilities which are compatible with the networked printing device. The computing device receives a request to purchase one of the printer capabilities for the networked printing device. The printer driver associates the purchased printer capability with the computing device.
摘要:
A method increases the ability of a controller in a printer to detect weak or missing inkjets in the printer. The method includes generating a test pattern having at least twice as much ink as a typical test pattern used to detect weak or missing inkjets. The increased ink appropriately stresses inkjets to facilitate detection of weak or missing inkjets and the test pattern is transferred to media and removed from the printer to preserve the capacity of a drum maintenance unit to store residual ink removed from an imaging drum or belt.
摘要:
A method for operating an image receiving member in a phase change ink printer has been developed. The method includes selectively rotating the image receiving member past an activated heater to heat a first portion of the image receiving member to a first predetermined temperature that is greater than a second temperature to which a remaining portion of the image receiving member is heated by the heater.
摘要:
A process for preparing an imaging surface of an imaging transfer member in a printing machine, the process comprises providing a surface roughness to the imaging surface to produce a plurality of pits having sharp features on the surface, and then exposing the pitted imaging surface to an acid dip for a time period sufficient to substantially reduce the sharp features on the imaging surface. This process may be followed by anodization. The process produces an imaging surface having a pit structure providing reduced oil consumption and wear of components of the printing machine that contact the imaging surface.
摘要:
An imaging device includes a quiet mode management system in which a control system of an imaging device selectively reduces print speed based on print job attributes such as job size, repetitions and media in use.
摘要:
A method enables an ink jet imaging device to normalize the driving signals for the ink jets within a print head of the device. The method includes generating an ink jet driving signal at an initial voltage and a particular resolution, coupling the ink jet driving signal to an ink jet for selective emission of ink from the ink jet onto an ink receiver in accordance with the driving signal, scanning the ink receiver and generating a line discontinuity signal indicative of a number of discontinuities detected in a line formed on the ink receiver by the ink ejected from the ink jet, and adjusting one of a voltage and a resolution for the ink jet driving signal in response to the line discontinuity signal received from the scanner.
摘要:
A method of performing maintenance on a printhead of an imaging device includes the application of a purge pressure to ink in an on-board reservoir of the printhead to cause ink to be burped through a plurality of apertures in an aperture plate of the printhead. A wiper blade is then dabbed on the aperture plate at least once after the application of the purge pressure. After the dabbing, the wiper blade is drawn across the aperture plate. The wiper blade is then dabbed against the dabbing position at least once after wiping the aperture plate.