Belt conveyor device and image forming apparatus
AssigneeKYOCERA Document Solutions Inc.
InventorDaijiro Ueno
Life of this patent
Estimating the term…
Abstract
A plurality of support rollers rotatably support a belt member. A first motor and a second motor each rotate one of the plurality of support rollers. In a normal mode, a normal control portion derives a load index value based on information on a load torque of the plurality of support rollers, and controls a second supply power supplied to the second motor based on power control data representing a correspondence between the load index value and a motor supply power. In a calibration mode, a calibration control portion corrects the power control data by comparing a speed detection value when a test drive control is being executed or a test actual value which is a power supplied to the second motor with a reference value.
Claims7
A belt conveyor device comprising:
- an endless belt member which is ventilatable, disposed such that a part of the belt member is along a specific area, and configured to convey one or more objects along the specific area by rotating;
- a plurality of support rollers configured to rotatably support the belt member;
- a belt support which is ventilatable and disposed along an inner surface of the part of the belt member which is along the specific area;
- a suction fan configured to generate a suction pressure for sucking the objects to an outer surface of the part of the belt member which is along the specific region;
- a first motor configured to rotate one of the plurality of support rollers;
- a second motor configured to rotate one of the plurality of support rollers;
- a normal control portion configured to control a first supply power supplied to the first motor and a second supply power supplied to the second motor in a normal mode;
- and
- a calibration control portion configured to control the second supply power in a calibration mode, wherein
- the normal control portion acquires a speed detection value which is a detection value of a rotational speed of one of the plurality of support rollers, and controls the first supply power in accordance with a difference between the acquired speed detection value and a target speed,
- the normal control portion derives a load index value based on information on a load torque of the plurality of support rollers, and controls the second supply power based on power control data representing a correspondence between the load index value and a motor supply power,
- the calibration control portion executes a test drive control for causing the second motor and the suction fan to perform predetermined operations, and
- the calibration control portion corrects the power control data by comparing the speed detection value when the test drive control is being executed or a test actual value which is a power supplied to the second motor with a preset reference value.
Dependencies are inferred from the claim text.