US4449812A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Paper leaf handling apparatus
Assignee: Canon Inc
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Filing: 1981-10-14
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Granted: 1984-05-22
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Expires: 2001-10-14
Abstract
Abstract A paper leaf handling apparatus has a receiving unit for receiving paper leaves, distributor for distributing to the receiving unit the paper leaves having images formed thereon and conveyed from an image formation apparatus to the paper leaf handling apparatus, detector for detecting the connected condition of the paper leaf handling apparatus and the image formation apparatus, and warner for warning of any improper connection detected by the detector.
Inventors
- 👤 Katsushi Furuichi
- 👤 Naomi Takahata
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 13:51
CPC Classifications
G; G03; G03G; G03G15/00; G03G15/65; G03G15/6538; B; B65; B65H; B65H39/00; B65H39/10; B65H39/11; B65H43/00; B65H2408/00; B65H2408/10; B65H2408/11; B65H2408/113
Claims Analysis
Total Claims: 29
Claim 1
Independent Claim
95 words
A paper leaf handling apparatus, comprising: a paper leaf receiving unit having a plurality of trays; moving means for moving said paper leaf receiving unit upwardly or downwardly, to position said plurality of trays in alignment with a paper leaf carry-out port so that paper leaves are received into said plurality of trays; means for preventing said plurality of trays from falling; means for releasing said preventing means; and control means, responsive to the operation of said releasing means, for causing said moving means to initiate the downward movement of said paper leaf receiving unit.
Claim 2
Dependent Claim
95 words
A paper leaf handling apparatus, comprising: a paper leaf receiving unit having a plurality of trays; moving means for moving said paper leaf receiving unit upwardly or downwardly, to position said plurality of trays in alignment with a paper leaf carry-out port so that paper leaves are received into said plurality of trays; means for preventing said plurality of trays from falling; means for releasing said preventing means; and control means, responsive to the operation of said releasing means, for causing said moving means to initiate the downward movement of said paper leaf receiving unit.
Claim 3
Dependent Claim
25 words
A paper leaf handling apparatus according to claim 1, further comprising detecting means for detecting that said preventing means is released by said releasing means.
Claim 4
Dependent Claim
33 words
A paper leaf handling apparatus according to claim 1, wherein means are provided so that said paper leaf receiving unit is permitted to move upwardly even when said preventing means has been released.
Claim 5
Dependent Claim
88 words
A paper leaf handling apparatus, comprising: a paper leaf receiving unit having a plurality of trays; moving means for moving said paper leaf receiving unit upwardly or downwardly to position said plurality of trays in alignment with a paper leaf carry-out port so that paper leaves are received into said plurality of trays; and control means for operatively controlling said moving means to select a non-sort tray from among said plurality of trays in response to a signal generated during the interruption of copying in a copying apparatus.
Claim 6
Dependent Claim
88 words
A paper leaf handling apparatus, comprising: a paper leaf receiving unit having a plurality of trays; moving means for moving said paper leaf receiving unit upwardly or downwardly to position said plurality of trays in alignment with a paper leaf carry-out port so that paper leaves are received into said plurality of trays; and control means for operatively controlling said moving means to select a non-sort tray from among said plurality of trays in response to a signal generated during the interruption of copying in a copying apparatus.
Claim 7
Dependent Claim
104 words
A paper leaf handling apparatus, comprising: a paper leaf receiving unit having a plurality of trays; moving means for moving said paper leaf receiving unit upwardly or downwardly to position said plurality of trays in alignment with a paper leaf carry-out port so that paper leaves are received into said plurality of trays; and control means for operatively controlling said moving means to select a tray in response to a signal generated during an interruption of copying in a copying apparatus, wherein said tray is next to the tray into which a paper leaf is received immediately before commencement of the interruption of copying.
Claim 8
Dependent Claim
104 words
A paper leaf handling apparatus, comprising: a paper leaf receiving unit having a plurality of trays; moving means for moving said paper leaf receiving unit upwardly or downwardly to position said plurality of trays in alignment with a paper leaf carry-out port so that paper leaves are received into said plurality of trays; and control means for operatively controlling said moving means to select a tray in response to a signal generated during an interruption of copying in a copying apparatus, wherein said tray is next to the tray into which a paper leaf is received immediately before commencement of the interruption of copying.
Claim 9
Dependent Claim
78 words
A paper leaf handling apparatus, comprising: a paper leaf receiving unit having a plurality of trays; moving means for moving said paper leaf receiving unit upwardly or downwardly to position said plurality of trays in alignment with a paper leaf carry-out port so that paper leaves are received into said plurality of trays; and control means for operatively controlling said moving means to select a particular tray from among said trays in response to a paper size signal.
Claim 10
Dependent Claim
78 words
A paper leaf handling apparatus, comprising: a paper leaf receiving unit having a plurality of trays; moving means for moving said paper leaf receiving unit upwardly or downwardly to position said plurality of trays in alignment with a paper leaf carry-out port so that paper leaves are received into said plurality of trays; and control means for operatively controlling said moving means to select a particular tray from among said trays in response to a paper size signal.
Claim 11
Dependent Claim
110 words
A paper leaf handling apparatus, comprising: a paper leaf receiving unit having a plurality of trays; moving means for moving said paper leaf receiving unit upwardly or downwardly to position said plurality of trays in alignment with a paper leaf carry-out port so that paper leaves are received into said plurality of trays; a moving member movable with said paper leaf receiving unit, and having thereon two different tray position display portions for displaying the tray positions; two position detecting members for detecting said tray position display portions; and control means for operatively controlling said moving means by a combination of the output signals from said two position detecting members.
Claim 12
Dependent Claim
110 words
A paper leaf handling apparatus, comprising: a paper leaf receiving unit having a plurality of trays; moving means for moving said paper leaf receiving unit upwardly or downwardly to position said plurality of trays in alignment with a paper leaf carry-out port so that paper leaves are received into said plurality of trays; a moving member movable with said paper leaf receiving unit, and having thereon two different tray position display portions for displaying the tray positions; two position detecting members for detecting said tray position display portions; and control means for operatively controlling said moving means by a combination of the output signals from said two position detecting members.
Claim 13
Dependent Claim
43 words
A paper leaf handling apparatus according to claim 7, wherein said tray position display portions are a display portion having a cut-away groove corresponding to each tray position, and a display portion having cut-away grooves corresponding to the uppermost and lowermost tray positions.
Claim 14
Dependent Claim
16 words
A paper leaf handling apparatus according to claim 8, wherein said position detecting members are photo-interrupters.
Claim 15
Dependent Claim
118 words
A paper leaf handling apparatus, comprising: an original feeding tray for supporting thereon, one by one, sheet originals; feed means for feeding a sheet original from said feeding tray to an exposure station; detector means for detecting the presence of the sheet original on said feeding tray; a first timer for counting a first predetermined period of time by the output from said detector means; setting means for setting said feed means at a feed starting position upon termination of the period of time of said first timer; a second timer for counting a second predetermined period of time; and drive means for driving said feed means upon termination of the period of time of said second timer.
Claim 16
Dependent Claim
118 words
A paper leaf handling apparatus, comprising: an original feeding tray for supporting thereon, one by one, sheet originals; feed means for feeding a sheet original from said feeding tray to an exposure station; detector means for detecting the presence of the sheet original on said feeding tray; a first timer for counting a first predetermined period of time by the output from said detector means; setting means for setting said feed means at a feed starting position upon termination of the period of time of said first timer; a second timer for counting a second predetermined period of time; and drive means for driving said feed means upon termination of the period of time of said second timer.
Claim 17
Dependent Claim
32 words
A paper leaf handling apparatus according to claim 10, wherein said setting means is a normally raised pick-up roller which lowers after termination of the period of time of said first timer.
Claim 18
Dependent Claim
35 words
A paper leaf handling apparatus according to claim 10, wherein said detector means detects the absence of the sheet original during the period of time of said second timer, thereby rendering said drive means inoperative.
Claim 19
Dependent Claim
35 words
A paper leaf handling apparatus according to claim 10, further comprising display means effecting different displays during the period of time of said first timer and during the period of time of said second timer.
Claim 20
Dependent Claim
32 words
A paper leaf handling apparatus according to claim 13, wherein said display means is a display lamp adapted to be turned on to display that said paper leaf handling apparatus is selected.
Claim 21
Dependent Claim
30 words
A paper leaf handling apparatus according to claim 14, wherein said display lamp is turned off for a predetermined time after termination of the time count of said first timer.
Claim 22
Dependent Claim
86 words
A sheet original feeding device, comprising: means for feeding an original to an exposure station; first timer means for causing a feeding operation to be effected when the original has been positioned for a predetermined period of time, wherein said first timer starts the predetermined period of time when the original is detected as being positioned on said feeding means; and second timer means for positioning the original at said exposure station, and for feeding out from said exposure station the original which has been exposed.
Claim 23
Dependent Claim
86 words
A sheet original feeding device, comprising: means for feeding an original to an exposure station; first timer means for causing a feeding operation to be effected when the original has been positioned for a predetermined period of time, wherein said first timer starts the predetermined period of time when the original is detected as being positioned on said feeding means; and second timer means for positioning the original at said exposure station, and for feeding out from said exposure station the original which has been exposed.
Claim 24
Dependent Claim
87 words
A paper leaf handling apparatus, comprising: a paper leaf receiving unit having a plurality of trays; moving means for moving said paper leaf receiving unit upwardly or downwardly to position said plurality of trays in alignment with a paper leaf carry-out part so that paper leaves are received into said plurality trays; mark members each provided on a respective tray; sensing means for sensing said mark members; and control means for controlling the operation of said moving means in accordance with the output of said sensing means.
Claim 25
Dependent Claim
87 words
A paper leaf handling apparatus, comprising: a paper leaf receiving unit having a plurality of trays; moving means for moving said paper leaf receiving unit upwardly or downwardly to position said plurality of trays in alignment with a paper leaf carry-out part so that paper leaves are received into said plurality trays; mark members each provided on a respective tray; sensing means for sensing said mark members; and control means for controlling the operation of said moving means in accordance with the output of said sensing means.
Claim 26
Dependent Claim
65 words
A paper leaf handling apparatus according to claim 17, wherein said mark members include a first mark member provided on the uppermost tray and a second mark member provided on the lowermost tray, and said control means controls the operation of said moving means in accordance with the output of said sensing means for sensing said mark members including said first and second mark members.
Claim 27
Dependent Claim
56 words
A paper leaf handling apparatus according to claim 18, wherein said sensing means has two sensing sections associated with said first and second mark members, respectively, and said control means controls the operation of said moving means in accordance with the combination of signals which are derived from said two sensing sections of said sensing means.
Claim 28
Dependent Claim
26 words
A paper leaf handling apparatus according to claim 17, 18 or 19, wherein said mark members have cut off slots corresponding to said plurality of trays.
Claim 29
Dependent Claim
16 words
A paper leaf handling apparatus according to claim 20, wherein said sensing sections include a photointerruptor.
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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) | 1987-05-22 | 1987-11-21 | 1988-05-22 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1991-05-22 | 1991-11-21 | 1992-05-22 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1995-05-22 | 1995-11-21 | 1996-05-22 | $7700.00 | Window Closed / Lapsed |