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US5119145A Expired / Lapsed US ⏱️ 0.0 years remaining

Original handling apparatus in which the exchange time of originals is shortened

Assignee: Canon Inc
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Filing: 1990-05-15
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Granted: 1992-06-02
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Expires: 2010-05-15
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Abstract

Abstract An original handling apparatus is provided with a conveyor, a setting circuit and a control system. The conveyor conveys an original in plural modes in which an original is scanned. The conveyor is operated in a first convey mode in which an original is fed to and stopped at a first position on a platen. After the scan is completed, the scanned original is fed to and stopped at a second position on the platen, and a next original is fed to and stopped at the first position on the platen. In the second convey mode, the original is fed to and stopped at the first position on the platen, and after scan is completed, the original is discharged from the first position. A next original is then fed to and stopped at the first position on the platen. The setting circuit sets either the first or second convey modes. The setting circuit enables the first convey mode to be set in a single-side mode wherein only one side of the original is scanned, and prohibits the first convey mode from being set in a dual-side mode wherein both sides of an original are scanned. A controller controls the conveyor to be operated in either the first or second convey mode in accordance with a setting signal from the setting circuit.

Inventors

  • 👤 Takeshi Honjo
  • 👤 Akimaro Yoshida
  • 👤 Makoto Kitahara
  • 👤 Norifumi Miyake

Bibliographic Details

Application Number —
Jurisdiction US
Data Source google_patents
Last Synchronized 2026-11-05 16:26
CPC Classifications
G; G03; G03G; G03G15/00; G03G15/60; G03B; G03B27/00; G03B27/32; G03B27/52; G03B27/62; G03B27/6207; G03B27/625; G03B27/6264; G03G2215/00; G03G2215/00172; G03G2215/00177; G03G2215/00181; G03G2215/00185

Claims Analysis

Total Claims: 18
Claim 1
Independent Claim 236 words
An original handling apparatus comprising: convey means for feeding an original from an exposure start end on a platen, stopping the original at a first position on the platen, and discharging the original from the first position to an opposite end to the exposure start end after exposure of the original is completed, said convey means having detecting means, provided upstream beyond the platen with respect to an original conveying direction, for detecting a trailing edge of the original; and control means for providing such a control that when said detecting means detects a trailing edge of a first original, after a predetermined time elapsed, the first original is stopped in conveyance at the first position on the platen, and a second original is fed to a second position located upstream beyond the platen and stopped thereat, wherein said control means further provides such a control that after exposure of the first original is completed, the first and second originals are fed, and when said detecting means detects a trailing edge of the second original, after the predetermined time elapsed, the first and second original are stopped in conveyance so that the first original is stopped at a third position located downstream below the first position with respect to an original conveying direction, the second original is stopped at the first position, respectively, and a third original is fed to the second position, and stopped thereat.
Claim 2
Dependent Claim 236 words
An original handling apparatus comprising: convey means for feeding an original from an exposure start end on a platen, stopping the original at a first position on the platen, and discharging the original from the first position to an opposite end to the exposure start end after exposure of the original is completed, said convey means having detecting means, provided upstream beyond the platen with respect to an original conveying direction, for detecting a trailing edge of the original; and control means for providing such a control that when said detecting means detects a trailing edge of a first original, after a predetermined time elapsed, the first original is stopped in conveyance at the first position on the platen, and a second original is fed to a second position located upstream beyond the platen and stopped thereat, wherein said control means further provides such a control that after exposure of the first original is completed, the first and second originals are fed, and when said detecting means detects a trailing edge of the second original, after the predetermined time elapsed, the first and second original are stopped in conveyance so that the first original is stopped at a third position located downstream below the first position with respect to an original conveying direction, the second original is stopped at the first position, respectively, and a third original is fed to the second position, and stopped thereat.
Claim 3
Dependent Claim 46 words
An apparatus according to claim 1, wherein said convey means comprises, at the upstream side of the platen, feed rollers for feeding the original, and said control means controls said convey means so that the second original is waited while being abutted against said feed rollers.
Claim 4
Dependent Claim 31 words
An apparatus according to claim 1, wherein said control means controls said convey means so that the second original is waited while being fed to the start end of the platen.
Claim 5
Dependent Claim 146 words
An image forming apparatus having an original handling apparatus, comprising: a platen for placing an original thereon; image forming means for forming an image on a recording member in accordance with an original image by scanning the original placed on said platen; convey means for feeding the original and stopping the original at a first position on said platen, after the scan is completed, feeding the scanned original and stopping the original at a second position on said platen, and feeding a next original and stopping the original at the first position on said platen; and inhibition means for inhibiting formation of an image on the recording member in accordance with the original at the second position on said platen, wherein said inhibition means inhibits formation of an image according to the original at the second position in accordance with a size of the recording member.
Claim 6
Dependent Claim 146 words
An image forming apparatus having an original handling apparatus, comprising: a platen for placing an original thereon; image forming means for forming an image on a recording member in accordance with an original image by scanning the original placed on said platen; convey means for feeding the original and stopping the original at a first position on said platen, after the scan is completed, feeding the scanned original and stopping the original at a second position on said platen, and feeding a next original and stopping the original at the first position on said platen; and inhibition means for inhibiting formation of an image on the recording member in accordance with the original at the second position on said platen, wherein said inhibition means inhibits formation of an image according to the original at the second position in accordance with a size of the recording member.
Claim 7
Dependent Claim 47 words
An apparatus according to claim 4, wherein said image forming means forms an electrostatic latent image on a photosensitive body in accordance with the original image, develops the latent image, and transfers the developed image onto the recording member, thereby forming the image on the recording member.
Claim 8
Dependent Claim 34 words
An apparatus according to claim 5, wherein said inhibition means comprises erase means for erasing the electrostatic latent image formed on said photosensitive body in accordance with the original located at the second position.
Claim 9
Dependent Claim 14 words
An apparatus according to claim 6, wherein said erase means comprises blank exposure means.
Claim 10
Dependent Claim 152 words
An original handling apparatus comprising: convey means for feeding a first original and stopping the first original at a first position on a platen, after scan is completed, feeding the first original and stopping the first original at a second position on the platen and feeding a second original and stopping the second original at the first position on the platen; discharge means provided downstream below the platen with respect to an original conveying direction, for discharging the original from said convey means, said discharge means having means for detecting a presence or absence of the original; and control means for providing such a control that if said detecting means detects the first original, when the second original is fed by said convey means to the second position and stopped thereat, after scan of the second original is completed, said discharge means is operated while said convey means is stopped in operation.
Claim 11
Dependent Claim 152 words
An original handling apparatus comprising: convey means for feeding a first original and stopping the first original at a first position on a platen, after scan is completed, feeding the first original and stopping the first original at a second position on the platen and feeding a second original and stopping the second original at the first position on the platen; discharge means provided downstream below the platen with respect to an original conveying direction, for discharging the original from said convey means, said discharge means having means for detecting a presence or absence of the original; and control means for providing such a control that if said detecting means detects the first original, when the second original is fed by said convey means to the second position and stopped thereat, after scan of the second original is completed, said discharge means is operated while said convey means is stopped in operation.
Claim 12
Dependent Claim 221 words
An original handling apparatus comprising: convey means for conveying an original in a plurality of modes, the original to be scanned, when said convey means is operated in a first convey mode the original is fed to and stopped at a first position on a platen, after scan is completed, the scanned original is fed to and stopped at a second position on the platen, and a next original is fed to and stopped at the first position on the platen, and when said convey means is operated in a second convey mode the original is fed to and stopped at the first position on the platen, after the scan is completed, the original is discharged from the first position and a next original is fed to and stopped at the first position on the platen; setting means for setting one of the first and second convey modes, said setting means enables the first convey mode to be set in a single-side mode wherein only one side of the original is scanned, and prohibits the first convey mode from being set in a duel-side mode wherein both sides of the original are scanned; and control means for controlling said convey means to be operated in the first or second convey mode in accordance with a setting signal from said setting means.
Claim 13
Dependent Claim 221 words
An original handling apparatus comprising: convey means for conveying an original in a plurality of modes, the original to be scanned, when said convey means is operated in a first convey mode the original is fed to and stopped at a first position on a platen, after scan is completed, the scanned original is fed to and stopped at a second position on the platen, and a next original is fed to and stopped at the first position on the platen, and when said convey means is operated in a second convey mode the original is fed to and stopped at the first position on the platen, after the scan is completed, the original is discharged from the first position and a next original is fed to and stopped at the first position on the platen; setting means for setting one of the first and second convey modes, said setting means enables the first convey mode to be set in a single-side mode wherein only one side of the original is scanned, and prohibits the first convey mode from being set in a duel-side mode wherein both sides of the original are scanned; and control means for controlling said convey means to be operated in the first or second convey mode in accordance with a setting signal from said setting means.
Claim 14
Dependent Claim 42 words
An apparatus according to claim 9, wherein said convey means is operative, in the duel-side mode, to discharge the original after completion of scanning for both of the sides of the original, and to feed the next original to the first position.
Claim 15
Dependent Claim 38 words
An apparatus according to claim 9, wherein said setting means includes detecting means for detecting an original size, and the first and second convey modes are set in accordance with the original size detected by said detecting means.
Claim 16
Dependent Claim 46 words
An apparatus according to claim 11, wherein when the original size is equal to or smaller than a predetermined size, said setting means sets the first convey mode, and when the set original size exceeds the predetermined size, said setting means sets the second convey mode.
Claim 17
Dependent Claim 29 words
An apparatus according to claim 9, wherein said setting means sets the first or second convey mode on the basis of a mode signal from an image forming apparatus.
Claim 18
Dependent Claim 24 words
An apparatus according to claim 13, wherein said setting means sets the first convey mode on the basis of a single-side copy mode signal.

USPTO Annuity & Maintenance Windows

Annuity Stage Window Opens Payment Deadline Surcharge Period Until Estimated Fee Status
3.5 Years (Year 4) 1995-06-02 1995-12-02 1996-06-02 $2000.00 Window Closed / Lapsed
7.5 Years (Year 8) 1999-06-02 1999-12-02 2000-06-02 $3760.00 Window Closed / Lapsed
11.5 Years (Year 12) 2003-06-02 2003-12-02 2004-06-02 $7700.00 Window Closed / Lapsed

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