Browse Prior Art Database

Exit Bin Paper Height Sensor

IP.com Disclosure Number: IPCOM000040226D
Original Publication Date: 1987-Oct-01
Included in the Prior Art Database: 2005-Feb-02
Document File: 2 page(s) / 61K

Publishing Venue

IBM

Related People

Jones, RO: AUTHOR [+3]

Abstract

In a copier/printer machine configuration which offsets exiting stapled multiple sheet sets, the output basket oscillates and also moves down as copy sets accumulate. In this operation of the output basket it is necessary to read the vertical height of the paper stack. A sensing device is described which accomplishes this purpose. Fig. 1 shows a top view of basket 10 attached to copier/printer body 11 to receive stapled copy sets in the direction indicated by arrow 12. Handles 13 attached to output basket 10 act as paper set stops, and reference edge 14 is controlled by copier/printer 11 through its paper-exiting action. Oscillation of output basket 10, indicated by (Image Omitted) arrow 15, allows the sets to be offset one from another approximately one inch from position 1 to position 2.

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Exit Bin Paper Height Sensor

In a copier/printer machine configuration which offsets exiting stapled multiple sheet sets, the output basket oscillates and also moves down as copy sets accumulate. In this operation of the output basket it is necessary to read the vertical height of the paper stack. A sensing device is described which accomplishes this purpose. Fig. 1 shows a top view of basket 10 attached to copier/printer body 11 to receive stapled copy sets in the direction indicated by arrow 12. Handles 13 attached to output basket 10 act as paper set stops, and reference edge 14 is controlled by copier/printer 11 through its paper-exiting action. Oscillation of output basket 10, indicated by

(Image Omitted)

arrow 15, allows the sets to be offset one from another approximately one inch from position 1 to position 2. Various paper sizes, nominally 11-inch and B4, can be accommodated. Sensor head 16 is attached in a fixed position to copier/printer 11 through arm 17. Sensor head 16 consists of a pair of sensors, a sender and a receiver, providing a light beam which is focused at mirror 18 at an angle to allow the edges of the various paper sets to lay within the sensor beam. The optical beam is preferably infrared such as provided by an infrared LED (light-emitting diode) emitter and a phototransistor receiver. Mirror 18 is wide enough to encompass the infrared beam during its oscillating action. Fixed sensor head 16 is aimed or directed (Fig. 2) at point 19, whi...