Patent US3336424A successfully refreshed from Google Patents.
Patent US4333170A successfully refreshed from Google Patents.
EP0078166A2
Expired / Lapsed
EP
⏱️ 0.0 years remaining
Document handling apparatus and reproduction machines incorporating same
Assignee: Xerox Corp
•
Filing: 1982-10-22
•
Granted: —
•
Expires: 2002-10-22
Abstract
Abstract A document handling apparatus (12) in or for a reproduction machine is disclosed which includes -a turnaround- roller (100) arranged between an exposure platen (14) for the copier and a document sheet supply tray (70) for directing document sheets fed from the tray (70) back into the tray in an inverted orientation when occasions arise for the inversion. One or more occasions may arise and be initiated automatically depending upon a selected mode of duplication or when an odd number of passes of a document set of sheets are necessary to complete a reproduction run. Other occasions may be operator selected for various reasons such as when pre-printed or pre-punched copy sheets are being processed.
Inventors
- 👤 Gerald A. Buddendeck
- 👤 Karl M. Kau
- 👤 William Gustav Gerken
Bibliographic Details
Application Number
—
Jurisdiction
EP
Data Source
google_patents
Last Synchronized
2026-10-27 12:47
CPC Classifications
G; G03; G03B; G03B27/00; G03B27/32; G03B27/52; G03B27/62; G03B27/6207; G03B27/625; G03B27/6257
Claims Analysis
Total Claims: 21
Claim 1
Independent Claim
92 words
In or for a reproduction machine, a document handling apparatus (12) for feeding document sheets individually from a stack (D) to an exposure platen for selective repeated copying of one side only or both sides of the document sheets, characterised by: a path (90) for conveying sheets one at a time to the platen without inversion, an inversion path (102) for conveying sheets from the platen (14) and back to the platen inverted, and means (104) for deflecting sheets from said inversion path to return them to the stack (D) without inversion.
Claim 2
Dependent Claim
92 words
In or for a reproduction machine, a document handling apparatus (12) for feeding document sheets individually from a stack (D) to an exposure platen for selective repeated copying of one side only or both sides of the document sheets, characterised by: a path (90) for conveying sheets one at a time to the platen without inversion, an inversion path (102) for conveying sheets from the platen (14) and back to the platen inverted, and means (104) for deflecting sheets from said inversion path to return them to the stack (D) without inversion.
Claim 3
Dependent Claim
139 words
A reproduction machine according to claim 1, comprising: a document support member (70) adjacent to one side of the platen (14) for supporting the stack, said support member having means (74, 85) associated therewith for feeding each document sheet from the bottom of the stack, means (90) defining a sheet path from the document sheet feed means (74, 85) to the platen (14) without inverting the sheet, means (100) defining a sheet path from the platen (14) including a loop for inverting the sheet and to return the sheet to the platen in an inverted orientation, and deflector means (104) in said loop movable between a position for directing the document sheet back to the platen (14) in the inverted orientation and a position to return the sheet to the top of the stack (D) in its original orientation.
Claim 4
Dependent Claim
29 words
A reproduction machine according to claim 2, wherein said loop (100) is positioned on the same side of the platen (14) as the document support member (70) and therebetween.
Claim 5
Dependent Claim
123 words
A reproduction machine according to claim 1, comprising: a document support member (70) adjacent one side of the platen (14) for supporting the stack (D), means (74, 85) for separating a sheet from the bottom of the document sheet stack (D) and feeding the same to the platen (14) without inverting the sheet, means (97, 100) for removing the sheet from the platen and directing the same to return the sheet to the platen in an inverted orientation, and means (104) operatively associated with said last named means and being adapted to inhibit the return of the sheet to the platen (14) but to return the same to the top of the stack (D) thereby permitting the production of a simplex copy sheet.
Claim 6
Dependent Claim
169 words
In or for a reproduction machine, a document handling apparatus (12) for feeding document sheets from a stack (D) onto a platen of the machine for exposure, characterised by: a tray (70) for supporting the document being positioned on one side of the platen, means (74, 85) for feeding each document sheet seriatim from the bottom of the stack along a feed path (90) and to transport the same onto the platen (14)for exposure thereon, and means (102) for transporting each document sheet from the platen to the top of the stack (D) in the tray (70) along a return path (102), turnaround roller means (100) arranged between the platen and said tray and with a portion of said feed path (90) arranged along a section of the periphery thereof and with a portion of said return path (102) along another section of the periphery, and deflector means (92) arranged between the platen and said roller means (100) for diverting sheets returning from the platen to said return path.
Claim 7
Dependent Claim
169 words
In or for a reproduction machine, a document handling apparatus (12) for feeding document sheets from a stack (D) onto a platen of the machine for exposure, characterised by: a tray (70) for supporting the document being positioned on one side of the platen, means (74, 85) for feeding each document sheet seriatim from the bottom of the stack along a feed path (90) and to transport the same onto the platen (14)for exposure thereon, and means (102) for transporting each document sheet from the platen to the top of the stack (D) in the tray (70) along a return path (102), turnaround roller means (100) arranged between the platen and said tray and with a portion of said feed path (90) arranged along a section of the periphery thereof and with a portion of said return path (102) along another section of the periphery, and deflector means (92) arranged between the platen and said roller means (100) for diverting sheets returning from the platen to said return path.
Claim 8
Dependent Claim
79 words
A document handling apparatus according to claim 5, in which said deflector means (92) is actuable to a control position for permitting the sheets to be directed to the platen and to another control position for diverting sheets returning from the platen to said return path, and second deflector means are arranged between said tray and said roller means for directing sheets fed from said tray around said roller means and back into said tray in an inverted orientation.
Claim 9
Dependent Claim
31 words
A reproduction machine according to claim 5 or 6, wherein said portion of said feed path (90) and said return path (102) are diametrically opposed relative to said roller means (100).
Claim 10
Dependent Claim
38 words
A reproduction machine according to claim 5, 6 or 7 including a second deflector means (104) arranged in said return path (102) and being movable to direct sheets to said tray (70) or to said feed path (90).
Claim 11
Independent Claim
117 words
A method of copying both sides of duplex document sheets arranged in a stack (D), with the sheets in the stack being arranged in sequential order, the improvement comprising: supporting the stack (D) of document sheets adjacent one side of the exposure platen (14) of a copier, separating the bottom sheet from the stack (D) and feeding the sheet to the platen (14) without inverting the same, removing the sheet from the platen (14), along a path for inverting the same and return the sheet to the platen in an inverted orientation, and removing the sheet from the platen (14) a second time and directing the sheet to the top of the stack in its original orientation.
Claim 12
Independent Claim
117 words
A method of copying both sides of duplex document sheets arranged in a stack (D), with the sheets in the stack being arranged in sequential order, the improvement comprising: supporting the stack (D) of document sheets adjacent one side of the exposure platen (14) of a copier, separating the bottom sheet from the stack (D) and feeding the sheet to the platen (14) without inverting the same, removing the sheet from the platen (14), along a path for inverting the same and return the sheet to the platen in an inverted orientation, and removing the sheet from the platen (14) a second time and directing the sheet to the top of the stack in its original orientation.
Claim 13
Independent Claim
119 words
A method of copying both sides of duplex document sheets arranged in a stack (D), with the sheets in the stack being arranged in sequential order, the improvement comprising: supporting the stack (D) of document sheets adjacent the exposure platen (14) of a copier, separating the bottom sheet from the stack (D) and feeding the sheet to the platen (14) in a first direction, removing the sheet from the platen (14) along a path in a direction opposite said first direction and then returning the sheet to the platen (14) in an inverted orientation, removing the sheet from the platen (14) a second time in said opposite direction and directing the sheet to the top of the stack (D).
Claim 14
Independent Claim
119 words
A method of copying both sides of duplex document sheets arranged in a stack (D), with the sheets in the stack being arranged in sequential order, the improvement comprising: supporting the stack (D) of document sheets adjacent the exposure platen (14) of a copier, separating the bottom sheet from the stack (D) and feeding the sheet to the platen (14) in a first direction, removing the sheet from the platen (14) along a path in a direction opposite said first direction and then returning the sheet to the platen (14) in an inverted orientation, removing the sheet from the platen (14) a second time in said opposite direction and directing the sheet to the top of the stack (D).
Claim 15
Dependent Claim
157 words
In or for reproduction machine, a document handling apparatus (12) for feeding document sheets individually from a stack (D) to an exposure platen (14) for the machine and return to the stack (D) for selective repeated copying of one side only or both sides of the document sheets, with the sheets in the stack being arranged in sequential order, characterised by: a document support member (70) adjacent one side of the platen (14) for supporting the stack, means (74, 85) for separating a sheet from the bottom of the document sheet stack (D) and feeding the same to the platen (14), means (97, 100) for removing the sheet from the platen and returning it to the platen, and guide means (91) arranged to receive each sheet after the same has been separated from the sheet stack (D) and to guide the same back to the top of the stack (D) thereby inverting the sheets in the stack.
Claim 16
Dependent Claim
157 words
In or for reproduction machine, a document handling apparatus (12) for feeding document sheets individually from a stack (D) to an exposure platen (14) for the machine and return to the stack (D) for selective repeated copying of one side only or both sides of the document sheets, with the sheets in the stack being arranged in sequential order, characterised by: a document support member (70) adjacent one side of the platen (14) for supporting the stack, means (74, 85) for separating a sheet from the bottom of the document sheet stack (D) and feeding the same to the platen (14), means (97, 100) for removing the sheet from the platen and returning it to the platen, and guide means (91) arranged to receive each sheet after the same has been separated from the sheet stack (D) and to guide the same back to the top of the stack (D) thereby inverting the sheets in the stack.
Claim 17
Dependent Claim
144 words
Apparatus according to claim 11, comprising: a document support member (70) adjacent to one side of the platen (14) for supporting the stack (D), said support member (70) having means (74, 85) for feeding each document sheet from the bottom of the stack associated therewith, means (90) defining a sheet path from the document sheet feed means (74, 85) to the platen (14) without inverting the sheet, means (100) defining a sheet path from the platen (14) for inverting the sheet and to return the sheet to the platen (14) in an inverted orientation thereby preferably presenting the first side of the sheet for copying, and deflector means (91) movable between a position for directing a document sheet from the support member (70) to the platen (14) and a position to return the sheet to the top of the stack in an inverted orientation.
Claim 18
Independent Claim
142 words
A method of copying both sides of duplex document sheets arranged in a stack (D), with the sheets in the stack being arranged in sequential order, characterised by the steps of: supporting the stack (D) of document sheets adjacent one side of the exposure platen (14) of a copier, and selectively: a) separating each document sheet from the stack (D) and feeding the same to the platen (14), removing the sheet from the platen (14), along a path for inverting the same and returning the sheet to the platen (14), and removing the sheet from the platen (14) a second time and directing the sheet to the top of the stack (D) in its original orientation, or b) separating each document sheet from the stack (D), bypassing the platen (14) and returning the same to the top thereof in an inverted orientation.
Claim 19
Independent Claim
142 words
A method of copying both sides of duplex document sheets arranged in a stack (D), with the sheets in the stack being arranged in sequential order, characterised by the steps of: supporting the stack (D) of document sheets adjacent one side of the exposure platen (14) of a copier, and selectively: a) separating each document sheet from the stack (D) and feeding the same to the platen (14), removing the sheet from the platen (14), along a path for inverting the same and returning the sheet to the platen (14), and removing the sheet from the platen (14) a second time and directing the sheet to the top of the stack (D) in its original orientation, or b) separating each document sheet from the stack (D), bypassing the platen (14) and returning the same to the top thereof in an inverted orientation.
Claim 20
Independent Claim
149 words
A method of copying of both sides of duplex document sheets arranged in a stack (D), with the sheets in the stack being arranged in sequential order, characterised by the steps of: supporting the stack (D) of document sheets adjacent the exposure platen (14) of a copier, separating the bottom sheet from the stack (D) and feeding the sheet to the platen (14) in a first direction, removing the sheet from the platen (14) along a path in a direction opposite said first direction and returning the sheet to the platen (14) in an inverted orientation, removing the sheet from the platen (14) a second time in said opposite direction and directing the sheet to the top of the stack (D), and separating the bottom sheet from the stack (D) bypassing the platen (14) and returning the sheet to the top of the stack (D) in an inverted orientation.
Claim 21
Independent Claim
149 words
A method of copying of both sides of duplex document sheets arranged in a stack (D), with the sheets in the stack being arranged in sequential order, characterised by the steps of: supporting the stack (D) of document sheets adjacent the exposure platen (14) of a copier, separating the bottom sheet from the stack (D) and feeding the sheet to the platen (14) in a first direction, removing the sheet from the platen (14) along a path in a direction opposite said first direction and returning the sheet to the platen (14) in an inverted orientation, removing the sheet from the platen (14) a second time in said opposite direction and directing the sheet to the top of the stack (D), and separating the bottom sheet from the stack (D) bypassing the platen (14) and returning the sheet to the top of the stack (D) in an inverted orientation.
References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
Maintenance schedule is calculated for granted US utility patents.