Printer having print output linked to scanner input for automated image quality adjustment
AssigneeXerox Corporation
InventorsLingappa K. Mestha, David A. Mantell
Life of this patent
Estimating the term…
Abstract
An imaging machine operating components include an input scanner for providing images on copy sheets and a copy sheet path connected to the input scanner. The imaging machine is calibrated by providing an image on a first copy sheet and automatically conveying the first copy sheet to the input scanner by way of the copy path. The image on the first copy sheet is scanned and provides the image on a second copy sheet. The image on the second copy sheet is sensed and compared to a reference image to calibrate the imaging machine. The calibration sequence is automatically initiated via control data stored in a memory.
Claims17
An imaging machine having an imaging member, operating components including a document scanner, and a control system including memory to provide images on copy sheets comprising:
- a calibration image stored in memory,
- control data stored in said memory for automatically initiating a calibration sequence by projecting the calibration image onto the imaging member,
- a source of copy sheets, the calibration image being transferred from the imaging member to a first copy sheet,
- a copy sheet path to automatically convey said first copy sheet with the calibration image to the document scanner for scanning the calibration image on said first copy sheet, the calibration image being projected onto the imaging member and transferred to a second copy sheet, and
- a sensor to measure imaging machine parameters by sensing the calibration image on the second copy sheet to provide control data for machine adjustment.
An imaging machine having an imaging member, operating components including a document scanner, and a control system including memory to provide images on copy sheets comprising:
- a calibration image stored in memory,
- a copy sheet source, the calibration image being transferred to a first copy sheet,
- a copy sheet path to automatically convey the first copy sheet to the document scanner for scanning the calibration image, the calibration image being transferred onto a second copy sheet, and
- a sensor to measure printing machine parameters by sensing the calibration image on the second copy sheet to provide control data for machine adjustment, the memory including stored data to automatically initiate the transfer of the calibration image to said first copy sheet.
In an imaging machine having an imaging member, operating components including an input scanner for digitizing images for projecting onto the imaging member, a source of copy sheets, a control with memory, and a transfer member to transfer images projected onto the imaging member onto copy sheets, and a paper path for conveying copy sheets with images to the input scanner, a method of calibration of the imaging machine comprising the steps of:
- providing an image on a first copy sheet,
- automatically conveying the first copy sheet to the input scanner by means of said paper path, responsive to data in the memory
- scanning said image on the first copy sheet, projecting said image onto the imaging member, and transferring said image to a second copy sheet, and
- sensing said image on the second copy sheet to calibrate the imaging machine, including the step of comparing the image on the second copy sheet to calibration data.
Dependencies are inferred from the claim text.