Method for monitoring a fountain solution layer in an image forming device
AssigneeXerox Corporation
InventorsMartin L. Frachioni, Christopher Mieney, David A. Vankouwenberg, David M. Gurak, Stuart A. Schweid
Life of this patent
Estimating the term…
Loading patent…
AssigneeXerox Corporation
InventorsMartin L. Frachioni, Christopher Mieney, David A. Vankouwenberg, David M. Gurak, Stuart A. Schweid
Estimating the term…
Examples of the preferred embodiments use an ink quantity metric (e.g., lightness L*, darkness, image density, line width) of printed content to determine thickness of fountain solution applied by a fountain solution applicator on an imaging member surface and/or determine image forming device real-time image forming modifications for subsequent printings. For example, in real-time during the printing of a print job, a sensor (e.g., spectrometer) may measure the ink quantity metric of the current printing on print substrate. Based on this measurement of printed content output from the image forming device, the image forming device may adjust image forming (e.g., fountain solution deposition flow rate) to reach or maintain a preferred fountain solution thickness on the imaging member surface for subsequent (e.g., next) printings of the print job.
A method of measuring fountain solution thickness on an imaging member surface during a printing operation of an image by a digital image forming device, comprising:
A method of controlling fountain solution thickness on an imaging member surface of a rotating imaging member in a digital image forming device, the digital image forming device configured to print a current image having an ink quantity metric level at a region of a printed substrate, the method comprising:
A method of controlling laser output on an imaging member surface of a rotating imaging member in a digital image forming device, the digital image forming device configured to print a current image having an ink quantity metric level at a region of a print substrate, the printing including applying a fountain solution layer at a dispense rate onto the imaging member surface, vaporizing in an image wise fashion a portion of the fountain solution layer with a laser to form a latent image, applying ink onto the latent image over the imaging member surface, and transferring the applied ink from the imaging member surface to the print substrate, the method comprising:
Dependencies are inferred from the claim text.