Patent US4789259A successfully refreshed from Google Patents.
US4789259A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Cut sheet feed apparatus
Assignee: Canon Inc
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Filing: 1987-01-09
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Granted: 1988-12-06
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Expires: 2007-01-09
Abstract
Abstract A cut sheet feed apparatus in a recording system having recording means for performing recording at a recording position, includes first storing means for storing cut sheets to be fed to the recording position feeding means for feeding the cut sheets from the first storing means to the recording position second storing means for storing cut sheets passing through the recording position discharge means for discharging the cut sheets to the second storing means a reversible drive motor for operating the feeding means and the discharge means; and transmitting means for transmitting a forward rotational force of the drive motor to the feeding means and the discharge means to simultaneously perform feed and discharge operations, and for transmitting a reverse rotational force to the discharge means to release transmission of the rotational force to said feeding means, thereby allowing only the discharge operation.
Inventors
- 👤 Jun Katayanagi
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-07 09:07
CPC Classifications
B; B41; B41J; B41J13/00; B41J13/0009; B41J13/0018; B41J13/10
Claims Analysis
Total Claims: 26
Claim 1
Independent Claim
143 words
A cut sheet feed apparatus in a recording system having recording means for performing recording at a recording position, including: first storing means for storing cut sheets to be fed to the recording position; supplying means for supplying the cut sheets from said first storing means to the recording position; second storing means for storing cut sheets passing through the recording position; discharge means for discharging the cut sheets to said second storing means; a reversible drive motor for operating said supplying means and said discharge means; and transmitting means for transmitting a forward rotational force of said drive motor to said supplying means and said discharge means to simultaneously perform supply and discharge operations, and for transmitting a reverse rotational force to said discharge means to release transmission of the rotational force to said supplying means, thereby allowing only the discharge operation.
Claim 2
Dependent Claim
143 words
A cut sheet feed apparatus in a recording system having recording means for performing recording at a recording position, including: first storing means for storing cut sheets to be fed to the recording position; supplying means for supplying the cut sheets from said first storing means to the recording position; second storing means for storing cut sheets passing through the recording position; discharge means for discharging the cut sheets to said second storing means; a reversible drive motor for operating said supplying means and said discharge means; and transmitting means for transmitting a forward rotational force of said drive motor to said supplying means and said discharge means to simultaneously perform supply and discharge operations, and for transmitting a reverse rotational force to said discharge means to release transmission of the rotational force to said supplying means, thereby allowing only the discharge operation.
Claim 3
Dependent Claim
22 words
An apparatus according to claim 1, wherein said supplying means includes a supply roller, and said discharge means includes a discharge roller.
Claim 4
Dependent Claim
32 words
An apparatus according to claim 2, wherein said discharge means further comprises guide ribs, said guide ribs being adapted to cooperate with said discharge roller to clamp and discharge the cut sheet.
Claim 5
Dependent Claim
45 words
An apparatus according to claim 1, further comprising a feed roller for feeding the cut sheet from said supplying means to the recording position and further to said discharge means, said feed roller being independently driven by another motor arranged separately from said drive motor.
Claim 6
Dependent Claim
26 words
An apparatus according to claim 4, wherein said feed roller comprises a platen roller for causing the cut sheet wound therearound to face the recording position.
Claim 7
Dependent Claim
50 words
An apparatus according to claim 4, further comprising an operation member for allowing manual rotation of said feed roller, and another transmitting means for transmiting a rotational force of said feed roller to said discharge means to perform discharge when said operation member is operated to rotate said feed roller.
Claim 8
Dependent Claim
42 words
An apparaus according to claim 6, wherein said another transmitting means includes a one-way clutch for transmitting the rotational force from said feed roller to said discharge means and for inhibiting transmission of power of said discharge means to said feed roller.
Claim 9
Dependent Claim
31 words
An apparatus according to claim 7, wherein the transmission of the power to said discharge means by said transmitting means has a higher priority than that by said another transmitting means.
Claim 10
Dependent Claim
37 words
An apparatus according to claim 7, wherein said one-way clutch transmits a rotational force in a supply direction of said supply roller but inhibits transmission of a rotational force in a direction opposite to the supply direction.
Claim 11
Dependent Claim
118 words
A cut sheet feed apparatus in a recording system having recording means for performing recording at a recording position, including; feed means for feeding a cut sheet so as to cause the cut sheet to pass by the recording position by a feed motor; storing means for storing the cut sheet passing by the recording position; discharge means for discharging the cut sheet passing by the recording position into said storing means; a drive motor for driving said discharge means; operating means for manually operating said feed means; and one-way transmitting means for transmitting power of said feeding means to said discharge means and for substantially inhibiting transmission of power of said discharge means to said feeding means.
Claim 12
Dependent Claim
118 words
A cut sheet feed apparatus in a recording system having recording means for performing recording at a recording position, including; feed means for feeding a cut sheet so as to cause the cut sheet to pass by the recording position by a feed motor; storing means for storing the cut sheet passing by the recording position; discharge means for discharging the cut sheet passing by the recording position into said storing means; a drive motor for driving said discharge means; operating means for manually operating said feed means; and one-way transmitting means for transmitting power of said feeding means to said discharge means and for substantially inhibiting transmission of power of said discharge means to said feeding means.
Claim 13
Dependent Claim
22 words
An apparatus according to claim 10, wherein said feeding means comprises a feed roller, and said discharge means comprises a discharge roller.
Claim 14
Dependent Claim
21 words
An apparatus according to claim 11, wherein said feed roller has a peripheral speed lower than that of said discharge roller.
Claim 15
Dependent Claim
52 words
An apparatus according to claim 11, a ratio of the peripheral speed of said feed roller to that of said discharge roller upon driving of said drive motor and said feed motor being different from that upon stopping of said drive motor and said feed motor and operation of said operating means.
Claim 16
Dependent Claim
158 words
A cut sheet feed apparatus in a recording system having recording means for performing recording at a recording position, including: first storing means for storing a cut sheet to be fed to the recording position; supplying means for supplying the cut sheet from said first storing means; a feeding roller for causing the cut sheet fed from said supplying means to pass by the recording position; second storing means for storing the cut sheet passing by the recording position; discharge means for discharging the cut sheet fed from said feeding roller into said second storing means; and means for controlling operations of said supplying means, said feeding roller, and said discharge means, said supplying means and said discharge means being simultaneously operated when said feeding roller is stopped, whereby an old cut sheet may be discharged to said second storing means and a new cut sheet transported from said first storing means to reach the stopped feeding roller.
Claim 17
Dependent Claim
158 words
A cut sheet feed apparatus in a recording system having recording means for performing recording at a recording position, including: first storing means for storing a cut sheet to be fed to the recording position; supplying means for supplying the cut sheet from said first storing means; a feeding roller for causing the cut sheet fed from said supplying means to pass by the recording position; second storing means for storing the cut sheet passing by the recording position; discharge means for discharging the cut sheet fed from said feeding roller into said second storing means; and means for controlling operations of said supplying means, said feeding roller, and said discharge means, said supplying means and said discharge means being simultaneously operated when said feeding roller is stopped, whereby an old cut sheet may be discharged to said second storing means and a new cut sheet transported from said first storing means to reach the stopped feeding roller.
Claim 18
Dependent Claim
31 words
An apparatus according to claim 14, wherein said control means controls to cause said feeding roller to operate after the cut sheet from said first storing means reaches said feeding roller.
Claim 19
Dependent Claim
22 words
An apparatus according to claim 14, wherein said supplying means includes a supply roller and said discharge means includes a discharge roller.
Claim 20
Dependent Claim
56 words
An apparatus according to claim 14, further comprising a reversible drive motor for driving said supplying means and said discharge means when said reversible drive motor is driven in a forward direction, and for driving said discharge means and inhibiting driving of said supplying means when said reversible drive motor is rotated in a reverse direction.
Claim 21
Dependent Claim
22 words
An apparatus according to claim 17, further comprising another motor arranged independently of said reversible drive motor to drive said feed roller.
Claim 22
Dependent Claim
154 words
A cut sheet feed apparatus in a recording system having recording means for performing recording at a recording position, including: first storing means for storing a cut sheet to be fed to the recording position; supplying means for supplying the cut sheet from said first storing means; a feeding roller for causing the cut sheet fed from said supplying means to pass by the recording position; second storing means for storing the cut sheet passing by the recording position; discharge means for discharging the cut sheet fed from said feeding roller in said second storing means; and control means for controlling said supplying means, said feeding roller, and said discharge means, said control means being adapted to, when a trailing end of a leading cut sheet is released from said feeding roller, stop said feeding roller and for simultaneously operating said supplying means and said discharge means, thereby simultaneously performing supply and discharge operations.
Claim 23
Dependent Claim
154 words
A cut sheet feed apparatus in a recording system having recording means for performing recording at a recording position, including: first storing means for storing a cut sheet to be fed to the recording position; supplying means for supplying the cut sheet from said first storing means; a feeding roller for causing the cut sheet fed from said supplying means to pass by the recording position; second storing means for storing the cut sheet passing by the recording position; discharge means for discharging the cut sheet fed from said feeding roller in said second storing means; and control means for controlling said supplying means, said feeding roller, and said discharge means, said control means being adapted to, when a trailing end of a leading cut sheet is released from said feeding roller, stop said feeding roller and for simultaneously operating said supplying means and said discharge means, thereby simultaneously performing supply and discharge operations.
Claim 24
Dependent Claim
22 words
An apparatus according to claim 19, wherein said supplying means includes a supply roller, and said discharge means includes a discharge roller.
Claim 25
Dependent Claim
44 words
An apparatus according to claim 19, further comprising a reversible drive motor for driving said supplying means and said discharge means in a forward rotational direction and for driving said discharge means and inhibiting driving of said supplying means in a reverse rotational direction.
Claim 26
Dependent Claim
22 words
An apparatus according to claim 21, further comprising another motor arranged independently of said reversible drive motor to operate said feeding roller.
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1991-12-06 | 1992-06-06 | 1992-12-06 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1995-12-06 | 1996-06-06 | 1996-12-06 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1999-12-06 | 2000-06-06 | 2000-12-06 | $7700.00 | Window Closed / Lapsed |