Title:
TONER STATE DETERMINATION DEVICE AND TONER STATE DETERMINATION PROGRAM
Document Type and Number:
Japanese Patent JP2015075629
Kind Code:
A
Abstract:
PROBLEM TO BE SOLVED: To provide a technology capable of quickly detecting a prediction that toner in a development unit is fused and started to be fixed.SOLUTION: A data acquisition part 53 acquires the output data of a time measurement part 52 (the data of elapsed time) or the data of a temperature sensor 148 in each development unit 14 (the data of the internal temperature of the development unit 14), and stores (accumulates) the data in a data accumulation part 54. A determination part 55 calculates a temperature rise value indicating a rise degree of the internal temperature of the development unit 14, and compares it with a reference value, and when the calculated temperature rise value exceeds the reference value, determines that toner is put in a high concentration state in the neighborhood of the temperature sensor 148, and that there is a prediction that toner is fixed, and an output part 56 performs output indicating that it is determined that there is a prediction that the toner is fixed.
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Inventors:
FURUKAWA SHIGEHIRO
Application Number:
JP2013211703A
Publication Date:
April 20, 2015
Filing Date:
October 09, 2013
Export Citation:
Assignee:
FUJI XEROX CO LTD
International Classes:
G03G15/08; G03G21/00
Domestic Patent References:
| JP2013190753A | 2013-09-26 | |||
| JP2011085709A | 2011-04-28 | |||
| JP2010152315A | 2010-07-08 |
Attorney, Agent or Firm:
Tamura
Tatsuo Moriyama
Junko Sugimura
Tatsuo Moriyama
Junko Sugimura