Ricoh Company, Ltd.

Takuhei Minami

Koichi Kudo

Hiroaki Takagi

Takahisa Koike

Katsuya Kawagoe

Hideyuki Takayama

Junya Takigawa

Minoru Takahashi

Masaru Yamagishi

Masahiro Ashikawa

Tatsuya Watahiki

Takuro Kamiyai

A disclosed to-be-transferred object length measurement device includes a first rotating body; a passage detection unit detecting a passage of the to-be-transferred object; a rotation amount measurement unit measuring a rotation amount of the first rotating body in a first measurement period; a second rotating body feeding the to-be-transferred object; a speed detection unit detecting a first feeding speed and a second feeding speed of the to-be-transferred object; and a calculation unit calculating a feeding distance of the to-be-transferred object per a predetermined rotation amount of the first rotating body based on the first feeding speed, and further calculating a length of the to-be-transferred object based on the rotation amount of the first rotating body in the first measurement period, the feeding distance, and the second feeding speed of the to-be-transferred object in the second measurement period.

To-be-transferred object length measurement device and image forming apparatus and computer-readable storage medium

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Kanagawa, Japan

Takuhei Minami