Patent ID: 8125451
Filing Date: 2012-02-28
Classification: B41J

Abstract:
1. An operation panel comprising: an operation section including a plurality of holes formed therein; and a display section which displays a content of operation effected at the operation section, wherein the display section and the operation section are formed integrally with each other, the display section is raised relative to a horizontal plane, a plurality of operation keys provided on the operation section are classified into visual recognition keys operated while the display section is being viewed and non-visual recognition keys which do not require an operator to view the display section during operation thereof, each one of the plurality of operation keys provided in a corresponding one of the plurality of holes, the visual recognition keys are arranged outside of a projection region of the display section, the non-visual recognition keys are arranged within the projection region, each of the plurality of operation keys includes an inclined convex portion having a protruding central portion formed on an upper surface of the respective operation key, and an inverted cone-shaped, inclined portion directed toward a peripheral edge portion of the respective operation key is formed on a peripheral edge portion of a respective hole, such that a tip end of one of a mouth stick and a head stick can be caught in between the inclined convex portion and the inverted cone-shaped, inclined portion.