Use of scanner unit for paper tray preprocessing

摘要

Methods and systems feed print media from a print media storage device to a scanner positioned along a paper path, and feed the print media along the paper path from the scanner to a marking device positioned along the paper path. The scanner is positioned between the print media storage device and the marking device along the media path. The scanner scans the print media as the print media travels along the paper path before the print media reaches the marking device. The methods and systems control actions of the marking device based upon patterns of markings detected on the print media by the scanner using a processor operatively connected to the scanner and the marking engine, and print markings on the print media using the marking device.

主权项

1. A method comprising:
receiving, in a printing device, a print job comprising content for use on pre-printed media, said pre-printed media having pre-printed markings thereon prior to printing said print job; feeding print media from a print media storage device to a paper path of said printing device; feeding said print media along said paper path from said print media storage to a scanner positioned along said paper path; feeding said print media along said paper path from said scanner to a marking device positioned along said paper path, said scanner being positioned between said print media storage device and said marking device along said paper path, said scanner scanning said print media as said print media travels along said paper path before said print media reaches said marking device to determine whether said pre-printed markings are present on said print media; controlling actions of said marking device based upon patterns of markings detected on said print media by said scanner to change said content of said print job by selectively adding said pre-printed markings to said content based on said pre-printed markings not being present on said print media using a processor operatively connected to said scanner and said marking device; and printing said print job on said print media using said marking device.