Browse Prior Art Database

Control Sheet With Row Count Verification

IP.com Disclosure Number: IPCOM000048533D
Original Publication Date: 1982-Feb-01
Included in the Prior Art Database: 2005-Feb-08
Document File: 2 page(s) / 31K

Publishing Venue

IBM

Related People

Nagda, JM: AUTHOR [+2]

Abstract

Optical mark recognition sheets may be used as control sheets for a copier or a facsimile machine. Shown above is a control sheet which may be used by such a machine to verify that all of the control information on the sheet was read. This is accomplished by reading a binary count in the bottom row of the sheet and verifying that it equals the number of rows of control information on the sheet.

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Control Sheet With Row Count Verification

Optical mark recognition sheets may be used as control sheets for a copier or a facsimile machine. Shown above is a control sheet which may be used by such a machine to verify that all of the control information on the sheet was read. This is accomplished by reading a binary count in the bottom row of the sheet and verifying that it equals the number of rows of control information on the sheet.

The control sheet is identified by a pattern of marks across the top of the page and a pattern of marks across the bottom of the page. When the copier or facsimile machine detects the presence of these marks, it knows it is scanning a control sheet rather than a document to be copied. In the body of the control sheet, there are rows of control information. The number of rows is variable. Each row, which contains control information, is indicated by a mark in the left- hand margin aligned with that row.

As the scanner scans the control sheet, the number of rows identified by left- hand margin marks as containing control information are counted. When the scanner reaches the bottom of the page, as indicated by the bottom-of-page marks, the scanner looks for five mark positions at a predetermined location in the bottom-of-page row. These five mark positions will contain a mark or no mark representive of the binary count equal to the number of rows of control information in the body of the control sheet. For example, in the control shee...