Back to results
US 12,560,880 B2Granted
Heating control method and image forming apparatus
AssigneeZhuhai Pantum Electronics Co., Ltd.
InventorsRonghua Li, Hongyan Liu, Hongcheng Xiang, Yulin Liang
Life of this patent
Estimating the term…
Abstract
Provided is a heating control method and image forming apparatus. The heating control method includes: when an image forming apparatus is in a printing state, determining a time duration t1 required for the fixing assembly to rise from a current temperature or a temperature at a set moment to a preset target temperature; and determining a time point of the fixing assembly to start heating based on a distance from a preset location to a central position of the fixing assembly, a travelling speed of a printing medium, and the time t1.
Claims13
A heating control method for controlling heating of a fixing assembly in an image forming apparatus, comprising:
- when the image forming apparatus is in a printing state,
- determining a time duration t1 required for the fixing assembly to rise from a current temperature or a temperature at a set moment to a preset target temperature;
- and
- determining a time point of the fixing assembly to start heating based on a distance from a preset location to a central position of the fixing assembly, a travelling speed of a printing medium, and the time t1;
- wherein said determining of the time duration t1 required for the fixing assembly to rise from the current temperature or the temperature at the set moment to the preset target temperature comprises:
- determining a heating rate of the fixing assembly;
- and
- calculating the time duration t1 based on the heating rate of the fixing assembly, the current temperature or the temperature at the set moment, and the preset target temperature;
- and
- wherein said determining the heating rate of the fixing assembly comprises:
- when the image forming apparatus is in a state of printing a first page of the printing medium, calculating the heating rate based on a temperature change of the fixing assembly in a preheating stage.
8 more elements
An image forming apparatus, comprising:
- at least one processor;
- and
- a memory configured to store instructions executable by the at least one processor;
- wherein the instructions cause the at least one processor to:
- determine a time duration t1 required for a fixing assembly to rise from a current temperature or a temperature of a set moment to a preset target temperature;
- and
- determine a time point of the fixing assembly to start heating, based on a distance from a preset location to a central position of the fixing assembly, a travelling speed of a printing medium and the time t1;
- wherein said determining of the time duration t1 required for the fixing assembly to rise from the current temperature or the temperature at the set moment to the preset target temperature comprises:
- determining a heating rate of the fixing assembly;
- and
- calculating the time duration t1 based on the heating rate of the fixing assembly, the current temperature or the temperature at the set moment, and the preset target temperature;
- and
- wherein said determining the heating rate of the fixing assembly comprises:
- when the image forming apparatus is in a state of printing a first page of the printing medium, calculating the heating rate based on a temperature change of the fixing assembly in a preheating stage.
11 more elements
A heating control method for controlling heating of a fixing assembly in an image forming apparatus, comprising:
- when the image forming apparatus is in a printing state,
- determining a time duration t1 required for the fixing assembly to rise from a current temperature or a temperature at a set moment to a preset target temperature;
- and
- determining a time point of the fixing assembly to start heating based on a distance from a preset location to a central position of the fixing assembly, a travelling speed of a printing medium, and the time t1,
- wherein said determining of the time duration t1 required for the fixing assembly to rise from the current temperature or the temperature at the set moment to the preset target temperature comprises:
- determining a heating rate of the fixing assembly;
- and
- calculating the time duration t1 based on the heating rate of the fixing assembly, the current temperature or the temperature at the set moment, and the preset target temperature;
- wherein said calculating the time duration t1 based on the heating rate of the fixing assembly, the current temperature or the temperature at the set moment, and the preset target temperature comprises:
- calculating the time duration t1 by a formula of t1=(T1−T0)/X,
- where T1 represents the preset target temperature of the fixing assembly, T0 represents the current temperature of the fixing assembly or the temperature at the set moment, and X represents the heating rate of the fixing assembly;
- and
- wherein said determining the heating rate of the fixing assembly comprises:
- when the image forming apparatus is in a state of printing a first page of the printing medium, calculating the heating rate based on a temperature change of the fixing assembly in a preheating stage.
11 more elements
Dependencies are inferred from the claim text.