Title:
IMAGE FORMING APPARATUS
Document Type and Number:
Japanese Patent JP2019144492
Kind Code:
A
Abstract:
To provide an image forming apparatus that does not transmit driving force when a temperature of a fixing device is low and a drive load on the fixing device is high, and performs transmission of the driving force when the temperature of the fixing device is increased and the drive load on the fixing device is reduced, thereby reducing a load on a fixing driving device to extend a life thereof.SOLUTION: An image forming apparatus comprises: a fixing device that includes a pair of fixing rollers, a heater that heats the fixing rollers, and a rotation detection device that detects rotation of the fixing rollers, and fixes toner to a medium; and a fixing driving device that includes a driving source, and a driving force transmission device that transmits driving force of the driving source, and transmits the driving force of the driving source to the fixing rollers. The driving force transmission device includes a torque limiter, does not transmit the driving force of the driving source to the fixing rollers when a temperature of the fixing device is low and a drive load on the fixing device is high, and transmits the driving force of the driving source to the fixing rollers when the drive load on the fixing device is reduced in association with an increase in temperature of the fixing device.SELECTED DRAWING: Figure 1
Inventors:
TOTSUKA TOSHIYUKI
Application Number:
JP2018030618A
Publication Date:
August 29, 2019
Filing Date:
February 23, 2018
Export Citation:
Assignee:
OKI DATA KK
International Classes:
G03G15/20; F16C13/00; F16D7/02; G03G21/00
Attorney, Agent or Firm:
Toshiaki Aoki
Mamoru Shimizu
Makoto Kawai
Mamoru Shimizu
Makoto Kawai