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US 8,025,288 B2Granted
Conveying device and image forming apparatus
AssigneeRicoh Company, Ltd.
InventorsYutaka Shoji, Junji Shirakawa, Takayuki Muneyasu
Life of this patent
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Abstract
A conveying device that conveys a recording medium includes an aligning member into which the leading edge of a recording medium bumps and a control unit that changes conveyance speed of the recording medium moving on a conveying path to bump into the aligning member.
Claims12
A conveying device that conveys a recording medium, the conveying device comprising:
- an aligning member into which a leading edge of the recording medium bumps thereto;
- and
- a control unit that changes conveyance speed of the recording medium moving on a conveying path to bump into the aligning member based on thickness or rigidity of the recording medium,
- wherein when thickness or rigidity of the recording medium is equal to or less than a set value, the conveyance speed of the recording medium immediately before the recording medium bumps into the aligning member is reduced to a speed lower than in comparison to when thickness or rigidity of the recording medium is more than the set value, and
- after reducing conveyance speed, the conveyance speed is increased to a speed higher than in a case when thickness or rigidity of the recording medium is more than the set value, so as to offset a lag caused by reducing the conveyance speed, and
- wherein the thickness or rigidity of the recording medium is input by a user via an input unit in an image forming apparatus or obtained from a sensor arranged in the image forming apparatus.
3 more elements
An image forming apparatus comprising:
- a conveying device including:
- an aligning member into which a leading edge of the recording medium bumps thereto;
- and
- a control unit that changes conveyance speed of the recording medium moving on a conveying path to bump into the aligning member based on thickness or rigidity of the recording medium,
- wherein when thickness or rigidity of the recording medium is equal to or less than a set value, the conveyance speed of the recording medium immediately before the recording medium bumps into the aligning member is reduced to a speed lower than in comparison to when thickness or rigidity of the recording medium is more than the set value, and
- after reducing conveyance speed, the conveyance speed is increased to a speed higher than in a case when thickness or rigidity of the recording medium is more than the set value, so as to offset a lag caused by reducing the conveyance speed, and
- wherein the thickness or rigidity of the recording medium is input by a user via an input unit in the image forming apparatus or obtained from a sensor arranged in the image forming apparatus.
4 more elements
Dependencies are inferred from the claim text.