Image formation with increased productivity by determining surface state of medium conveying roller based on detected fluctuation range in roller driving load
AssigneeKonica Minolta, Inc.
InventorsAkihiro Hayashi, Yuji Kobayashi, Hiroshi Eguchi, Takeshi Tamada
Life of this patent
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Abstract
An image forming apparatus includes: a drive source that drives an object; and a hardware processor that detects a fluctuation range of a load applied to the drive source by driving the object, and determines a state of the object on a basis of a detection result.
Claims24
An image forming apparatus comprising:
- a drive source that drives a roller that conveys a print medium;
- and
- a hardware processor that detects a fluctuation range of a load applied to the drive source by driving the roller, and determines a state of a surface of the roller on a basis of a detection result.
An image forming apparatus comprising:
- a drive source that rotationally drives a roller that conveys a print medium that is a sheet-like medium;
- and
- a hardware processor that detects a fluctuation range of a load applied to the drive source by driving the roller, and determines a cleaning time or a replacement time of the roller on a basis of a detection result.
An image forming apparatus comprising:
- a motor that rotationally drives a roller that conveys a print medium that is a sheet-like medium;
- and
- a hardware processor that
- detects a fluctuation range of a load applied to the motor by driving the roller by a fluctuation range of a current flowing through the motor,
- calculates an inclination of a change in the fluctuation range, and
- determines a cleaning time or a replacement time of the roller on a basis of the inclination.
A detection method that detects a state of a surface of a roller in an image forming apparatus including a drive source that drives the roller that conveys a print medium, the detection method comprising:
- detecting a fluctuation range of a load applied to the drive source by the drive source driving the roller;
- and
- determining a state of the surface of the roller on a basis of a detection result of the detecting.
A non-transitory recording medium storing a computer readable program executed in an image forming apparatus including a drive source that drives a roller that conveys a print medium, the program causing the image forming apparatus to perform:
- detecting a fluctuation range of a load applied to the drive source by the drive source driving the roller;
- and
- determining a state of a surface of the roller on a basis of a detection result of the detecting.
Dependencies are inferred from the claim text.