Patent ID: 7548721

Claim:
A sheet transferring device, comprising: a feeding roller configured to feed a sheet; a transferring roller configured to transfer the sheet to the feeding roller; a sheet sensor configured to detect the sheet at a sheet transferring part from the transferring roller to the feeding roller; a measuring part configured to measure an interval between a rear end of a prior sheet and a head end of a following sheet passing through the sheet sensor; and a transferring control part configured to determine, using the interval measured by the measuring part, an amount of deviation of the interval between the prior sheet and the following sheet from a set value and adjust a sheet transferring speed of the transferring roller based on the determined amount of deviation, wherein the transferring control part adjusts a timing for stopping the transferring roller after the head end of the sheet transferred by the transferring roller reaches the feeding roller that is stopped, as corresponding to adjustment of the sheet transferring speed, so that a sheet length between the feeding roller and the transferring roller, when the transferring roller is stopped, is adjusted to the set value.