Japan, March 5 -- RICOH CO LTD has got intellectual property rights for 'NIP FORMING UNIT AND IMAGE FORMING APPARATUS.' Other related details are as follows:
Application Number: JP,2022-033497
Category (FI): G03G15/20,555,G03G21/00,370,G03G21/00,384,G03G15/20,535
Stage: PROBLEM TO BE SOLVED: To prevent an endless film from becoming a distorted shape.SOLUTION: A nip forming unit has: a flexible endless film (fixing film 20); a heat source (heater 22) that heats the endless film; a nip forming member (heater 22) that is provided contactable with an inner peripheral surface of the endless film; a pressure member (pressure roller 21) that is in pressure contact with the nip forming member to form a nip with the endless film therebetween, and is driven to rotate to cause the endless film to rotate; detection means that detects the temperature of the pressure member; and control means that controls the rotational drive of the pressure member based on the temperature of the pressure member detected by the detection means, wherein a body to be conveyed (sheet P) is conveyed through the nip. The control means drives to rotate the pressure member in a conveyance direction to convey the body to be conveyed and subsequently stops the rotation of the pressure member, and when the temperature of the pressure member of the nip forming unit at the end of a job is equal to or higher than a predetermined temperature, the control means rotates the pressure member in a direction opposite to the conveyance direction for a predetermined time and subsequently stops the rotation of the pressure member.SELECTED DRAWING: Figure 9A (Grant)
Filing Date: March 4, 2022
Publication Date: Sept. 14, 2023
The original document can be viewed at: https://www.j-platpat.inpit.go.jp/p0100
Disclaimer: Curated by HT Syndication.
