Method and apparatus for calibrating a paper sensor to account for media holes

Abstract

The image forming device includes an image forming section in which an image is formed on the prepunched paper; a paper feed path through which paper is fed to and from the image forming section during a process in which an image is formed on the paper; one or more sensors arranged along the paper feed path to monitor a flow of the prepunched paper as it is fed through the paper feed path; and a processor for receiving signals from the sensors and map data of the prepunched paper, and for analyzing the signals and the map data to determine if there is a paper jam along the paper feed path, wherein the map data indicates locations of all holes, cut-outs, and notches formed in the prepunched paper. A method of using the image forming device is also disclosed.

Description

FIELD OF THE INVENTION[0001]This disclosure relates to a system and method for tracking the movement of paper through a multi-functional peripheral (MFP) or a printer. The disclosure further relates to a nontransitory computer readable medium that is encoded with a program for tracking the movement of paper through a multi-functional peripheral (MFP) or a printer.RELATED ART[0002]Multi-functional peripheral devices, sometimes referred to as MFPs, have a variety of functions, such as copying, network printing, scanning, faxing, and Transmission Control Protocol / Internet Protocol (TCP / IP) communication. Feeding a sheet of paper or other recording medium through an MFP, or a conventional printer, presents several challenges. Because of the high speed at which the paper moves through such a device, the paper will occasionally jam within the paper feed path.[0003]In order to ensure smooth functioning of the device, most devices have a series of sensors arranged along the paper feed path ...

AI Technical Summary

Benefits of technology

An image forming device has been created that can print prepunched paper. This device addresses issues that previously existed when trying to print on these types of paper.

Problems solved by technology

Feeding a sheet of paper or other recording medium through an MFP, or a conventional printer, presents several challenges.

Because of the high speed at which the paper moves through such a device, the paper will occasionally jam within the paper feed path.

A problem sometimes occurs when the above-described sensors are used with prepunched paper or paper preformed with cut-outs or notches.

In those situations, it is possible that the sensor will mistake one or more of the preformed holes, cutouts, or notches as the trailing edge of the sheet of paper.

In that case, the system may erroneously determine that a paper jam exists or may erroneously calculate the size of the sheet of paper.

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