Medium feeding apparatus, method for feeding medium, and computer-readable non-transitory recording medium

Abstract

A medium feeding apparatus includes a feed roller to feed a medium, a driving source to generate a driving force for driving the feed roller, a driving force transmission assembly to transmit the driving force to the feed roller, an applying part to apply a load against rotation of the feed roller, and control circuitry to control the driving source. The control circuitry controls the driving source to stop the feed roller and keeps the driving force transmission assembly static.

1 . A medium feeding apparatus comprising:
 a feed roller to feed a medium;   a driving source to generate a driving force for driving the feed roller;   a driving force transmission assembly to transmit the driving force to the feed roller;   an applying part to apply a load against rotation of the feed roller; and   control circuitry configured to control the driving source,   wherein the control circuitry controls the driving source to stop the feed roller and keeps the driving force transmission assembly static.   
     
     
         2 . The medium feeding apparatus according to  claim 1 , further comprising a conveyance roller located downstream from the feed roller in a medium conveying direction,
 wherein the control circuitry controls the driving source to stop the feed roller after a leading end of the medium passes the conveyance roller.   
     
     
         3 . The medium feeding apparatus according to  claim 1 , further comprising a separation roller facing the feed roller and rotatable in a direction opposite to a medium feeding direction,
 wherein the control circuitry controls the driving source to stop the feed roller at least while a trailing end of the medium passes through a nip between the feed roller and the separation roller.   
     
     
         4 . The medium feeding apparatus according to  claim 1 , further comprising a gear to transmit the driving force to the feed roller,
 wherein the applying part presses the gear in an axial direction of the gear to apply the load against rotation of the feed roller.   
     
     
         5 . The medium feeding apparatus according to  claim 1 , wherein the driving source is a direct-current motor. 
     
     
         6 . The medium feeding apparatus according to  claim 5 ,
 wherein the control circuitry shorts terminals at both ends of the direct-current motor or allows a predetermined current to flow through the direct-current motor to stop the feed roller.   
     
     
         7 . A method for feeding a medium, the method comprising:
 feeding a medium by a feed roller;   generating a driving force for driving the feed roller by a driving source;   transmitting the driving force to the feed roller by a driving force transmission assembly;   applying a load against rotation of the feed roller by an applying part;   controlling the driving source to stop the feed roller; and   keeping the driving force transmission assembly static.   
     
     
         8 . A computer-readable, non-transitory medium storing a computer program, wherein the computer program causes a medium feeding apparatus including a feed roller to feed a medium, a driving source to generate a driving force for driving the feed roller, a driving force transmission assembly to transmit the driving force to the feed roller, and an applying part to apply a load against rotation of the feed roller, to execute a process,
 the process comprising:   controlling the driving source to stop the feed roller; and   keeping the driving force transmission assembly static.