Patent ID: 8690464
Filing Date: 2014-04-08
Classification: B43K,B43L,G01N,G09B

Abstract:
1. A method of providing input to a machine readable form, the method comprising: providing a writing instrument having a first fluid dispensing portion and a second fluid dispensing portion, the first fluid dispensing portion having a first size and shape and the second fluid dispensing portion having a second size and shape; providing the machine readable form that includes a plurality of response areas, each response area having a third size and shape that corresponds with the first size and shape and the second size and shape; using the first fluid dispensing portion to mark a first response area of the machine readable form; using the first fluid dispensing portion to mark a second response area of the machine readable form; after using the first fluid dispensing portion to mark the second response area, using the second fluid dispensing portion to mark the second response area of the machine readable form; and reading the machine readable form using an optical apparatus, wherein a result of reading the first response area is different than a result of reading the second response area.