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Translating Top Edge Sensor for Substrate Registration Mechanism

IP.com Disclosure Number: IPCOM000033683D
Publication Date: 2004-Dec-23
Document File: 2 page(s) / 38K

Publishing Venue

The IP.com Prior Art Database

Abstract

This invention addresses the issue in a copier, printer, or multi-function device of moving the top edge registration sensor to the proper position in the center registering system. The proper position depends on paper width. It is proposed that the sensor be mounted to a gear rack or timing belt system to move it laterally as required.

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Translating Top Edge Sensor for Substrate Registration Mechanism

This invention addresses the issue in a copier, printer, or multi-function device of moving the top edge registration sensor to the proper position in the center registering system. The proper position depends on paper width. It is proposed that the sensor be mounted to a gear rack or timing belt system to move it laterally as required.

The top–edge sensor can be placed at the appropriate location, for the substrate width being run, by mounting it to a translating mechanism, such as a gear rack or timing belt, and controlling the mechanism, to position the sensor, with a stepper motor controlled by firmware. Machine application software will download to firmware the substrate width / location required.  The top-edge sensor trip point will be placed 25 mm upstream of the registration nips, in the substrate process direction, to insure that the smallest substrate size, 130 mm in the process direction, can be registered before the lead edge of the substrate contacts the photoreceptor belt. 

Stepper Motor                                                                  Timing Belt            Top Edge Sensor