Cartridge tray for use in a copying machine

A paper tray positionable in abuting relationship with a surface of a copier machine for holding a stack of paper comprising

• a movable guide,
• spring means for continously biasing said guide toward said stack to a first position in abutment with said stack, and
• actuator means adapted for manual movement to a first position for moving said guide against said bias and away from said stack to a second position, said actuator means movable to a second position by abutment with said surface upon insertion of said tray into said machine for permitting said actuator means to return to said first position, said surface being located in a horizontal plane and said actuator being movable vertically between said first and second positions, said second position being vertically above said first position.