# US 2010/0166484 A1 · Edge Guide Adjustment System > Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt - Number: US 2010/0166484 A1 - Document ID: US20100166484A1 - Status: Published application - Kind: A1 - Application number: 12/344,850 - Filed: 2008-12-29 - Published: 2010-07-01 - Earliest claimed: 2008-12-29 - Assignees: Lexmark International, Inc. - Inventors: Mark Joseph Edwards; John Paul NeCamp - Web page: https://patentgrep.com/patent/US20100166484A1 ## CPC - B41J 13/0018: {in the sheet input section of automatic paper handling systems} - B41J 11/003: {Paper-size detection, i.e. automatic detection of the length and/or width of copy material} - B41J 13/103: {for the sheet feeding section} - B41J: TYPEWRITERS; SELECTIVE PRINTING MECHANISMS, i.e. MECHANISMS PRINTING OTHERWISE THAN FROM A FORME; CORRECTION OF TYPOGRAPHICAL ERRORS ## Abstract The invention describes a method and system for correct positioning of a plurality of edge guides of a media source assembly. The system senses the proximity of documents with the plurality of edge guides by employing one or more sensors. Based on the sensed proximity, the one or more sensors provide notifications to the user through one or more indicators. ## Claims ### Claim 1 A media source assembly in an image forming device comprising: an input media tray to receive one or more documents; a plurality of edge guides coupled to the input media tray, the plurality of edge guides comprising: one or more first edge sensors for sensing proximity of the one or more documents to a corresponding first edge guide of the plurality of edge guides; one or more second edge sensors for sensing proximity of the one or more documents to a corresponding second edge guide of the plurality of edge guides, wherein the one or more first edge sensors and the one or more second edge sensors provide one or more feedback signals; and an indicator coupled to at least one of the one or more first edge sensors and the one or more second edge sensors for indicating to a user a placement of the one or more documents in the input media tray. ### Claim 2 (depends on 1) The media source assembly of claim 1, wherein the indicator comprises one or more Light Emitting Diodes (LEDs) which receive the one or more feedback signals and visually indicates to the user the placement of the one or more documents relative to at least one of the first edge guide and the second edge guide. ### Claim 3 (depends on 2) The media source assembly of claim 2, wherein the one or more LEDs are located on the first edge guide and the second edge guide. ### Claim 4 (depends on 1) The media source assembly of claim 1, wherein the indicator comprises a display which receives the one or more feedback signals and visually presents to the user the placement of the one or more documents relative to at least one of the first edge guide and the second edge guide. ### Claim 5 (depends on 1) The media source assembly of claim 1, wherein the indicator comprises one or more audio speakers which receive the one or more feedback signals and audibly presents to the user the placement of the one or more documents relative to at least one of the first edge guide and the second edge guide. ### Claim 6 (depends on 1) The media source assembly of claim 1, wherein the one or more first edge sensors and the one or more second edge sensors are selected from at least one of a reflective opto sensor, a strain gauge sensor, an opto-interrupter and an over travel switch. ### Claim 7 (depends on 1) The media source assembly of claim 1, wherein at least one of the first edge guide and the second edge guide is fixed relative to the input media tray. ### Claim 8 (depends on 1) The media source assembly of claim 1, wherein the plurality of edge guides are adjustable relative to the input media tray. ### Claim 9 An image forming device comprising: an input media tray for receiving one or more documents; a plurality of edge guides for guiding the one or more documents in the input media tray, the plurality of edge guides comprising: one or more first edge sensors for sensing proximity of the one or more documents to a first edge guide of the plurality of edge guides; one or more second edge sensors for sensing proximity of the one or more documents to a second edge guide of the plurality of edge guides; and a notification mechanism for generating at least one notification, the notification mechanism being coupled to the one or more first edge sensors and the one or more second edge sensors, wherein the at least one notification is generated based on one or more feedback signals received from at least one of the one or more first edge sensors and the one or more second edge sensors for indicating a placement of at least one of the plurality of edge guides relative to the one or more documents in the input media tray. ### Claim 10 (depends on 9) The image forming device of claim 9, wherein the at least one notification is represented in the form of at least one of a light signal, text, a graphic, a video and an audio indication. ### Claim 11 (depends on 9) The image forming device of claim 9 further comprising one or more motors for automatically moving at least one of the plurality of edge guides relative to the one or more documents. ### Claim 12 (depends on 9) The image forming device of claim 9, wherein the at least one of the plurality of edge guides is fixed relative to the input media tray. ### Claim 13 (depends on 9) The image forming device of claim 9, wherein the plurality of edge guides are adjustable relative to the input media tray. ### Claim 14 A method for positioning an edge guide of a media source assembly of an image forming device, the method comprising: sensing a proximity between one or more documents and at least one edge guide; and notifying a user in response to the sensed proximity when the one or more documents in an input media tray and the at least one edge guide are within a predetermined distance from each other. ### Claim 15 (depends on 14) The method of claim 14 further comprising instructing the user prior to the sensing to adjust a location of the at least one edge guide. ### Claim 16 (depends on 14) The method of claim 14 further comprising automatically moving the at least one edge guide relative to the one or more documents. ### Claim 17 (depends on 14) The method of claim 14, wherein the notifying comprises at least one of visually notifying the user and audibly notifying the user. ### Claim 18 A computer program product for use with a processor in an image forming device having an input media tray, the computer program product comprising a computer usable medium having a computer readable program code embodied therein which, when executed by the processor, causes the image forming device to perform: sensing a proximity of one or more documents in the input media tray to at least one edge guide; and notifying a user in response to the sensed proximity when the at least one edge guide is positioned substantially against one or more documents in the input media tray. ### Claim 19 (depends on 18) The computer program product of claim 18 further comprising a computer readable program code for performing automatically moving the at least one edge guide relative to the one or more documents.