Sheet feeding apparatus and image forming apparatus
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United States of America Patent
Stats
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Mar 14, 2017
Grant Date -
Oct 8, 2015
app pub date -
Mar 25, 2015
filing date -
Apr 4, 2014
priority date (Note) -
In Force
status (Latency Note)
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Abstract
A sheet feeding apparatus includes a stacking portion, a lifting portion, a feeding portion, and a control portion. The sheet feeding apparatus further includes a first height detecting portion configured to output a signal corresponding to a position in a height direction of the topmost sheet of sheets stacked on the stacking portion, a sheet presence detecting portion configured to output a signal corresponding to presence or absence of the sheets stacked on the stacking portion, and a second height detecting portion configured to output a signal corresponding to a position in a height direction of the stacking portion. The control portion performs control for sheet feeding operation using the signal from the sheet presence detecting portion if the position of the stacking portion is above a predetermined height based on the signal from the second height detecting portion and, if the position of the stacking portion is below the predetermined height, the control portion performs control for sheet feeding operation not using the sheet presence detecting portion.

First Claim
Family

- 15 United States
- 10 France
- 8 Japan
- 7 China
- 5 Korea
- 2 Other
Patent Owner(s)
Patent Owner | Address | |
---|---|---|
CANON KABUSHIKI KAISHA | TOKYO JAPAN DAEJEON 3 MEATBALLS 30 2 TOKYO TOKYO METROPOLIS |
International Classification(s)
Inventor(s)
Inventor Name | Address | # of filed Patents | Total Citations |
---|---|---|---|
Kushida, Hideki | Moriya, JP | 61 | 684 |
Nakagawa, Tomohito | Kashiwa, JP | 42 | 495 |
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Maintenance Fees
Fee | Large entity fee | small entity fee | micro entity fee | due date |
---|---|---|---|---|
11.5 Year Payment | $7400.00 | $3700.00 | $1850.00 | Sep 14, 2028 |
Fee | Large entity fee | small entity fee | micro entity fee |
---|---|---|---|
Surcharge - 11.5 year - Late payment within 6 months | $160.00 | $80.00 | $40.00 |
Surcharge after expiration - Late payment is unavoidable | $700.00 | $350.00 | $175.00 |
Surcharge after expiration - Late payment is unintentional | $1,640.00 | $820.00 | $410.00 |
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