Fixing device and image forming apparatus using the same
AssigneeRicoh Company, Ltd.
InventorAkira Shinshi
Life of this patent
Estimating the term…
Abstract
A fixing device including a fixing member to melt a toner so as to fix a toner image onto a recording medium, a temperature sensor to detect a temperature of the fixing member, and a heater to heat the fixing member based on the temperature detected by the temperature sensor. A driving speed of the fixing member is reduced after printing is completed, and subsequently the fixing member stops driving. The fixing member is controlled to have a desired temperature (Ts) after the fixing member stops driving that is lower than a desired temperature (Tp) during printing.
Claims19
A fixing device, comprising:
- a fixing member to melt a toner so as to fix a toner image onto a recording medium;
- a temperature sensor to detect a temperature of the fixing member;
- and
- a heater to heat the fixing member based on the temperature detected by the temperature sensor, wherein
- a driving speed of the fixing member is reduced to a constant driving speed after printing is completed, and
- the fixing member stops driving directly following an elapsed time at the constant driving speed.
An image forming apparatus, comprising:
- an image bearing member configured to bear an electrostatic latent image;
- a charging device configured to charge a surface of the image bearing member;
- an irradiating device configured to irradiate the charged surface of the image bearing member to form an electrostatic latent image thereon;
- a developing device configured to develop the electrostatic latent image with a toner to form a toner image;
- a transfer device configured to transfer the toner image onto a recording medium;
- and
- a fixing device configured to fix the toner image onto the recording medium, the fixing device includes,
- a fixing belt configured to contact the toner image so as to fix the toner image onto the recording medium;
- a temperature sensor configured to detect a temperature of the fixing belt;
- and
- a heater configured to heat the fixing belt based on the temperature detected by the temperature sensor, wherein
- a driving speed of the fixing belt is reduced to a constant driving speed after printing is completed, and
- the fixing belt stops driving directly following an elapsed time at the constant driving a speed.
A fixing device, comprising:
- a fixing belt;
- a pressure roller configured to contact the fixing belt;
- and
- a heater configured to heat the fixing belt, wherein
- a driving speed of the fixing belt is reduced to a constant driving speed after printing is completed, and
- the fixing belt stops driving directly following a predetermined time at the constant driving speed.
Dependencies are inferred from the claim text.