Offset preventing solution feeding device in fixing device

Abstract

Abstract PURPOSE: To supply and coat the offset preventing solution evenly to fixing rollers by gradually decreasing the contact width from the fixing rollers toward the replenisher in the offset preventing solution feed path consisting of the fixing rollers, coating roller, solution feeder and replenisher. CONSTITUTION: The device is constituted by a coating roller 21 which coats an offset preventing solution 14 to fixing rollers 3, 5 in rolling contact with the fixing rollers, a replenisher 24 which is dipped in the solution 14 and a solution feeder 23 which is provided in contact with the replenisher 24 and coating roller 21 and carries the solution 14 from the replenisher 24 to the coating roller 21 by capillarity. When the widths of the contact parts of the fixing roller 3, coating roller 21, solution feeder 24 and replenisher 23 are let to be L 1 , L 2 , L 3 , L 4 respectively, these are so set as to be within the range of 1<L 1 /L 2 ≤1.5, 1<L 2 /L 3 ≤1.5, 1≤L 3 /L 4 ≤1.5 Hence, the offset preventing solution 14 may be evenly supplied and coated on the surface of the fixing roller 3 irrespective of the sizes of image substrate P. COPYRIGHT: (C)1980,JPO&Japio

Inventors

• 👤 Hiroshi Ichinose

Bibliographic Details