Patent ID: 11905137
Assignee: CANON KABUSHIKI KAISHA
Field: Handling (Mechanical engineering)
Classification: CPC B | IPC B

Claim 9:
10. A sheet feeding device according to claim 8, further comprising a fourth detecting portion provided at a fourth detecting position, different from the third detecting position, downstream of said first feeding roller pair and upstream of said downstream feeding roller pair with respect to the sheet feeding direction and configured to detect the passing of the leading end portion of the sheet fed by said first feeding roller pair,
wherein the calculated sheet feeding speed is a first speed,
wherein said controller calculates a second speed on the basis of a fourth time which is a difference between the timing when the leading end portion of the sheet passes through the third detecting position and a timing when the leading end portion of the sheet passes through the fourth detecting position and a fourth distance between the third detecting position and the fourth detecting position with respect to the sheet feeding direction, and
wherein said controller calculates a sheet feeding speed on the basis of the first speed and the second speed.