EP0106567A2
Expired / Lapsed
EP
⏱️ 0.0 years remaining
Copy processing system for a reproduction machine
Assignee: Xerox Corp
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Filing: 1983-09-21
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Granted: —
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Expires: 2003-09-21
Abstract
Abstract A xerographic type reproduction machine or copier having means to monitor movement of the copy sheet and control processing thereof as the copy sheet moves along the machine paper path. A series of copy sheet monitoring stations at discrete intervals along the paper path and a copy information byte, which is provided with each copy sheet and which has instructions for processing the copy sheet to the next monitoring station, are provided. At start-up and during processing as the copy sheet moves from one station to the next, successive jam checks are made to identify and monitor movement of the copy sheet along the paper path. As each jam check is satisfied, the copy information byte is moved from one reading location to another to provide instructions for processing the copy sheet in the interval to the next monitoring station. Where a jam occurs in the relatively difficult to access paper tray area of the machine, the paper tray feeder and copy sheet transport means are operated temporarily despite the jam in an attempt to move any jammed sheet to a more favorable position for clearing the jam.
Inventors
- 👤 Ronald Paul Booth, Sr.
Bibliographic Details
Application Number
—
Jurisdiction
EP
Data Source
google_patents
Last Synchronized
2026-10-28 20:23
CPC Classifications
G; G03; G03G; G03G15/00; G03G15/65; G03G15/6529; G03G15/70
Claims Analysis
Total Claims: 11
Claim 1
Independent Claim
140 words
A reproduction machine including means forming a path along which a copy sheet being processed passes; transport means for moving said copy sheet along said path; a plurality of discrete copy sheet monitoring stations (69, 71, 73, 75, 77) disposed in preset locations along said path for monitoring movement of said copy sheet along said path; and control means (70, 72, 74, 76, 78) for enabling said monitoring stations whereby each of said monitoring stations scans said path for said copy sheet, characterised in that the next one one each of said monitoring stations is arranged to commence tolling of a predetermined timed interval in response to detection of said copy sheet by the preceding one of said monitoring stations for said copy sheet to reach said next monitoring station whereby movement of said sheet along said path is monitored.
Claim 2
Dependent Claim
140 words
A reproduction machine including means forming a path along which a copy sheet being processed passes; transport means for moving said copy sheet along said path; a plurality of discrete copy sheet monitoring stations (69, 71, 73, 75, 77) disposed in preset locations along said path for monitoring movement of said copy sheet along said path; and control means (70, 72, 74, 76, 78) for enabling said monitoring stations whereby each of said monitoring stations scans said path for said copy sheet, characterised in that the next one one each of said monitoring stations is arranged to commence tolling of a predetermined timed interval in response to detection of said copy sheet by the preceding one of said monitoring stations for said copy sheet to reach said next monitoring station whereby movement of said sheet along said path is monitored.
Claim 3
Dependent Claim
76 words
The machine according to claim I characterized by: means (89) providing copy processing information for said copy sheet, means forming a plurality of locations for said copy processing information whereat said copy processing information may be read to obtain instructions for processing said copy sheet; and means for advancing said copy processing information from location to location in response to detection of said copy sheet by each of said monitoring stations along said path in succession.
Claim 4
Dependent Claim
124 words
The machine according to claim 1 or 2 having feeder means for transporting copy sheets from a copy sheet tray (34, 36) in succession along the paper path, characterized by: a) sheet jam detecting means for monitoring movement of said copy sheets along said path; b) control means responsive to detection of a sheet jam by said jam detecting means to render said feeder means inoperative whereby to stop feeding of copy sheets along said path pending clearing of said jam; and c) jam clearance means operative to temporarily actuate said feeder means in an attempt to move the jammed sheet from the jam location along said path to a second location whereat removing of said jammed sheet from said paper path is facilitated.
Claim 5
Independent Claim
150 words
The method of operating a reproduction machine to produce copies having a paper path along which copy sheets are moved while producing copies, transport means for moving copy sheets along said path, and a plurality of sheet jam detecting stations at predetermined locations along said path, characterized by the steps of: a) scanning for a copy sheet at each of said stations; b) on detecting a copy sheet at one of said stations, initiating a jam check providing a predetermined timed interval within which said sheet must reach the next one of said stations; c) either clearing said jam check in response to detection of said sheet at said next station within said predetermined timed interval or generating a fault in response to failure of said sheet to reach said next station within said timed interval; and d) repeating steps b and c for each succeeding station along said path.
Claim 6
Independent Claim
150 words
The method of operating a reproduction machine to produce copies having a paper path along which copy sheets are moved while producing copies, transport means for moving copy sheets along said path, and a plurality of sheet jam detecting stations at predetermined locations along said path, characterized by the steps of: a) scanning for a copy sheet at each of said stations; b) on detecting a copy sheet at one of said stations, initiating a jam check providing a predetermined timed interval within which said sheet must reach the next one of said stations; c) either clearing said jam check in response to detection of said sheet at said next station within said predetermined timed interval or generating a fault in response to failure of said sheet to reach said next station within said timed interval; and d) repeating steps b and c for each succeeding station along said path.
Claim 7
Dependent Claim
70 words
The method according to claim 4 characterized by the steps of: a) providing discrete copy processing instructions for each of said copy sheets; and , b) reading said copy processing instructions in response to detection of the copy sheet associated therewith at each of said stations to obtain instructions for processing said copy sheet as said copy sheet moves along said paper path to the next one of said stations.
Claim 8
Dependent Claim
91 words
The method according to claim 4 or 5 in which said machine includes at least one copy sheet supply tray with feeder means for feeding sheets from said supply tray into said paper path, including the steps of: a) monitoring said paper tray for jams; b) interrupting operation of said feeder means in response to a jam; and c) reactuating said feeder means for a preset interval in an attempt to move any partially fed copy sheet from said paper tray into said paper path to facilitate clearing of said sheet.
Claim 9
Dependent Claim
33 words
The method according to claim 5 characterized by the step of: actuating said jam detecting stations to scan for copy sheets along said path in response to start up of said transport means.
Claim 10
Dependent Claim
31 words
The method according to claim 6 characterized by the step of: monitoring movement of said partially fed sheet to identify a new location of said sheet where said sheet is moved.
Claim 11
Independent Claim
166 words
The method according to any one of claims 4 to 8 to assure clearing of copy sheets from the paper path when starting up said machine, characterized by the steps of: a) starting said transport means to remove any copy sheets left in said paper path; b) scanning said paper path at predetermined locations along said paper path to detect any leftover copy sheets; c) on detecting a leftover copy sheet in said paper path at one of said locations, initiating a timed cycle for movement of said leftover copy sheet from said one location to the next second location; d) where said leftover copy sheet fails to reach said second location within said timed cycle, declaring a fault; e) where said leftover copy sheet reaches said second location within said timed cycle, instituting another timed cycle for movement of said leftover copy sheet from said second location to the next third location; and f) repeating steps c and d until said paper path is cleared.
References Cited (Backward Citations)
No citation records indexed.
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