Oblon, Spivak, McClelland, Maier & Neustadt
Printer using a drum
 A printer for printing out information on a paper wound around a drum and having a device for feeding and discharging a paper sheet from the drum and a clamping pawl which is provided on the drum to selectively clamp and unclamp the leading edge of the paper sheet. The paper feed and discharge and the clamping and unclamping of a paper sheet performed by the feeding and discharging device and the clamping pawl, respectively, are implemented by a single reversible stepping motor, clutches which are disposed in gearings which individually transmit the rotation of the stepping motor to the paper feeding and discharging device and the clamping pawl. 
Ricoh Company, Ltd.
B B
B65H B41J
inventional inventional
Tetsuo
Watanabe