Patent ID: 9499363
Filing Date: 2016-11-22
CPC Classification: B65H,G03G

Claim Text:
1. A sheet thickness detector comprising: at least one sheet conveying member and one driven sheet conveying member configured to form at least one first transfer nip there between, the at least one driven sheet conveying member being biased to displace depending on a thickness of the sheet passing through the at least one first transfer nip, the at least one driven sheet conveying member including at least one endless belt rotating about a stationary rotary shaft and a movable rotary shaft in the sheet conveyance direction; a first displacement member configured to form a second transfer nip at a point of contact with the at least one sheet conveying member, the first displacement member being biased to displace depending on the thickness of the sheet passing through the second transfer nip; a first support member configured to rotate about the stationary rotary shaft and support the first displacement member, the first support member having an opening for the movable rotary shaft to penetrate there through, the opening creating a gap that prevents the first support member from contacting the movable rotary shaft; and a displacement amount detector configured to detect an amount of displacement of the first displacement member.