GB1342838A - Detection system for superposed sheets - Google Patents
Detection system for superposed sheetsInfo
- Publication number
- GB1342838A GB1342838A GB2601071*A GB2601071A GB1342838A GB 1342838 A GB1342838 A GB 1342838A GB 2601071 A GB2601071 A GB 2601071A GB 1342838 A GB1342838 A GB 1342838A
- Authority
- GB
- United Kingdom
- Prior art keywords
- sheet
- detection system
- april
- superposed sheets
- sheets
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired
Links
Classifications
-
- G—PHYSICS
- G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
- G03G—ELECTROGRAPHY; ELECTROPHOTOGRAPHY; MAGNETOGRAPHY
- G03G15/00—Apparatus for electrographic processes using a charge pattern
- G03G15/70—Detecting malfunctions relating to paper handling, e.g. jams
- G03G15/703—Detecting multiple sheets
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
- B65H7/00—Controlling article feeding, separating, pile-advancing, or associated apparatus, to take account of incorrect feeding, absence of articles, or presence of faulty articles
- B65H7/02—Controlling article feeding, separating, pile-advancing, or associated apparatus, to take account of incorrect feeding, absence of articles, or presence of faulty articles by feelers or detectors
- B65H7/14—Controlling article feeding, separating, pile-advancing, or associated apparatus, to take account of incorrect feeding, absence of articles, or presence of faulty articles by feelers or detectors by photoelectric feelers or detectors
Landscapes
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Controlling Sheets Or Webs (AREA)
- Paper Feeding For Electrophotography (AREA)
Abstract
1342838 Photo-electric apparatus XEROX CORP 19 April 1971 [6 April 1970] 26010/71 Heading G1A The apparatus described in Specification 1342656 is modified in that a second photoelectric element V2 is provided on the same side of the sheet path as the lamp DS1, and a sample sheet S of the kind of sheets being supplied is retained by a leaf spring member 66 in the light path to the element V2. The circuit includes means for comparing signals representing the sheet material fed and the sample sheet to determine if there is double feed.
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US025804A US3882308A (en) | 1970-04-06 | 1970-04-06 | Detection system for superposed sheets |
Publications (1)
Publication Number | Publication Date |
---|---|
GB1342838A true GB1342838A (en) | 1974-01-03 |
Family
ID=21828143
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB2601071*A Expired GB1342838A (en) | 1970-04-06 | 1971-04-19 | Detection system for superposed sheets |
Country Status (4)
Country | Link |
---|---|
US (1) | US3882308A (en) |
CA (1) | CA929632A (en) |
DE (1) | DE2116802A1 (en) |
GB (1) | GB1342838A (en) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB2194040A (en) * | 1986-07-23 | 1988-02-24 | Ratby Eng Co Ltd | Paper feed control apparatus |
GB2198229A (en) * | 1986-12-05 | 1988-06-08 | Smiths Industries Plc | Opto-electric device for switching on power-consuming equipment |
Families Citing this family (9)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE3270835D1 (en) * | 1982-03-01 | 1986-06-05 | Christian Pierre Bourg | Sheet collator |
DE3230524C2 (en) * | 1982-08-17 | 1987-04-09 | Agfa-Gevaert Ag, 5090 Leverkusen | Device for detecting two or more superimposed film sheets |
JPS5961948U (en) * | 1982-10-18 | 1984-04-23 | 株式会社東芝 | Paper feeding device |
US4540887A (en) * | 1983-01-28 | 1985-09-10 | Xerox Corporation | High contrast ratio paper sensor |
US4577096A (en) * | 1983-08-15 | 1986-03-18 | Xerox Corporation | Multiple copy and transparency detector with illumination control |
US4831273A (en) * | 1987-10-29 | 1989-05-16 | Pitney Bowes Inc. | Mailing machine sensing device |
US5146087A (en) * | 1991-07-23 | 1992-09-08 | Xerox Corporation | Imaging process with infrared sensitive transparent receiver sheets |
JP3393175B2 (en) * | 1997-07-02 | 2003-04-07 | 理想科学工業株式会社 | Paper feeder for printing press |
JP3431866B2 (en) * | 1999-08-31 | 2003-07-28 | 理想科学工業株式会社 | Double feed detection device and double feed detection method |
Family Cites Families (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2512247A (en) * | 1946-08-07 | 1950-06-20 | X Ray Electronic Corp | Antimagnetically shielded photocell |
US2517330A (en) * | 1949-09-07 | 1950-08-01 | Johns Manville | Apparatus for measuring the thickness of semiopaque material |
US2646556A (en) * | 1950-06-17 | 1953-07-21 | C O Two Fire Equipment Co | Supervised alarm system |
US3026419A (en) * | 1959-05-11 | 1962-03-20 | Ibm | Overlap detector |
US3372276A (en) * | 1965-05-21 | 1968-03-05 | Atomic Energy Commission Usa | Method and system for the non-destructive inspection of variable density plates |
-
1970
- 1970-04-06 US US025804A patent/US3882308A/en not_active Expired - Lifetime
- 1970-10-22 CA CA096298A patent/CA929632A/en not_active Expired
-
1971
- 1971-04-17 DE DE19712116802 patent/DE2116802A1/de active Pending
- 1971-04-19 GB GB2601071*A patent/GB1342838A/en not_active Expired
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB2194040A (en) * | 1986-07-23 | 1988-02-24 | Ratby Eng Co Ltd | Paper feed control apparatus |
GB2198229A (en) * | 1986-12-05 | 1988-06-08 | Smiths Industries Plc | Opto-electric device for switching on power-consuming equipment |
Also Published As
Publication number | Publication date |
---|---|
CA929632A (en) | 1973-07-03 |
DE2116802A1 (en) | 1971-10-21 |
US3882308A (en) | 1975-05-06 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
PS | Patent sealed [section 19, patents act 1949] | ||
PLNP | Patent lapsed through nonpayment of renewal fees |