Patent ID: 7497431
Filing Date: 2009-03-03
Classification: B65H,Y10T

Abstract:
1. A pneumatic type paper feeding apparatus which supplies sheets of paper for printing to an electrophotographic apparatus, comprising: a paper floating member having a first injection nozzle and a second injection nozzle for respectively injecting a current of air to the sheets of paper from different places so as to convey the sheets of paper; a conveyance member that conveys the floated sheets of paper; and a distributing member provided in an air supply passage, that supplies a current of air to the first and the second injection nozzle, the distributing member including: wherein in said first operation mode, the first air port is communicated with the second air port, wherein in said second operation mode, the first air port is communicated with both the second and the third air port, wherein in said first operation mode, the first air port is communicated with only the second air port, and in said second operation mode, the first air port is communicated with only the third air port; a third operation mode in which the first air port is communicated with the second and a fourth air port; and a fourth operation mode in which the first air port is communicated with the third and a fifth air port, wherein the first to the fourth mode can be selectively changed over.