Donald Nolen Palmer

US Patent:

52850560, Feb 8, 1994

Filed:

Jun 17, 1992

Appl. No.:

7/899747

Inventors:

Jack Tedesco - Manhattan Beach CA
Donald R. Palmer - Fontana CA

Assignee:

RJS, Inc. - Los Angeles CA

International Classification:

G06K 710

US Classification:

235472

Abstract:

Apparatus is described for use with a bar code scanner, to enable consistent bar code reflectance quality measurements. The apparatus includes a holder (60, FIG. 1 ) which holds a hand-held bar code scanner (20) at a predetermined distance (B) and angle (A) with respect to the surface of a sheet (12) that has been imprinted with a bar code. The holder has a lower end (66) for lying "flat" against the sheet, and has a plurality of switches (81-83, FIG. 3 ) at locations spaced around the lower end of the holder. Only when all switches are operated, is the lower end of the holder flat against the sheet, and only when all switches are simultaneously actuated is the bar code scanner operated to generate a display that indicates reflectance quality.