Paper feeding cassette for a printing apparatus

A cassette for storing and supplying a sheet of a recording medium to a printing apparatus having a controller for formatting the printing on said sheet, comprising

• a frame having a bottom and upwardly extending sidewalls,
• a movable longitudinal guide on said bottom, said longitudinal guide being adjustable to the length of said sheet,
• first and second movable horizontal guides on said bottom, said first and second horizontal guides being adjustable to the width of said sheet,
• means for linking said first and second horizontal guides together so that they move symmetrically with respect to a longitudinal central axis of said frame when they are adjusted to the width of said sheet,
• said longitudinal guide and said first and second horizontal guides being adjustable to the dimensions of said sheet independently of each other,
• said longitudinal guide and said first and second horizontal guides cooperating to closely receive said sheet within said frame,
• first sensing means associated with said longitudinal guide for sensing the position of said longitudinal guide,
• first connecting means for connecting said first sensing means to said longitudinal guide so that said first sensing means travels along a first predetermined path in conjunction with movements of said longitudinal guide,
• second sensing means associated with said first and second horizontal guides for sensing the position of said horizontal guides, and
• second connecting means for connecting said second sensing means to said first horizontal guide so that said second sensing means travels along a second predetermined path in conjunction with movements of said first horizontal guide,
• wherein the format of the printing on said sheet is controlled by the positions of said longitudinal and horizontal guides.