IT1259593B - PRINTER OR SIMILAR OUTPUT DEVICE. - Google Patents

PRINTER OR SIMILAR OUTPUT DEVICE.

Info

Publication number
IT1259593B
IT1259593B ITTO920537A ITTO920537A IT1259593B IT 1259593 B IT1259593 B IT 1259593B IT TO920537 A ITTO920537 A IT TO920537A IT TO920537 A ITTO920537 A IT TO920537A IT 1259593 B IT1259593 B IT 1259593B
Authority
IT
Italy
Prior art keywords
transfer passage
paper transfer
photodetector
document
photoemitter
Prior art date
Application number
ITTO920537A
Other languages
Italian (it)
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed filed Critical
Publication of ITTO920537A0 publication Critical patent/ITTO920537A0/en
Publication of ITTO920537A1 publication Critical patent/ITTO920537A1/en
Application granted granted Critical
Publication of IT1259593B publication Critical patent/IT1259593B/en

Links

Classifications

    • 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
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H2511/00—Dimensions; Position; Numbers; Identification; Occurrences
    • B65H2511/50—Occurence
    • B65H2511/51—Presence
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H2515/00—Physical entities not provided for in groups B65H2511/00 or B65H2513/00
    • B65H2515/60—Optical characteristics, e.g. colour, light
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H2553/00—Sensing or detecting means
    • B65H2553/40—Sensing or detecting means using optical, e.g. photographic, elements
    • B65H2553/41—Photoelectric detectors
    • B65H2553/414—Photoelectric detectors involving receptor receiving light reflected by a reflecting surface and emitted by a separate emitter

Landscapes

  • Controlling Sheets Or Webs (AREA)
  • Accessory Devices And Overall Control Thereof (AREA)
  • Handling Of Cut Paper (AREA)

Abstract

L'invenzione si riferisce ad una stampante o a simile dispositivo di uscita per produrre caratteri su un documento alimentato entro il suo passaggio (1) di trasferimento della carta, comprendente almeno un mezzo disposto in relazione con il passaggio di trasferimento della carta per rivelare il documento, detto mezzo comprendendo un fotoemettitore (U1) ed un fotorivelatore (Q1) disposti nel passaggio (1) di trasferimento della carta in modo che un documento alimentato ad un percorso di propagazione della luce fra il fotoemettitore (1) ed il fotorivelatore (Q1) provoca una variazione nella quantità di luce ricevuta dal fotorivelatore (Q1). Secondo l'invenzione, per rivelare l'alimentazione del documento in un punto arbitrario del passaggio di trasferimento della carta senza aumentare il numero di fotoemettitori o fotorivelatori, sono previsti mezzi ottici (2; 3) sul percorso di propagazione della luce fra il fotoemettitore (U1) ed il fotorivelatore (Q1), detti mezzi ottici (2; 3) essendo disposti sulle superfici opposte nel passaggio di trasferimento della carta con una spaziatura reciproca in direzione trasversale al passaggio (1) di trasferimento della carta in modo da far si che la luce si propaghi varie volte attraverso il passaggio di trasferimento della carta prima di cadere sul fotorivelatore (Q1). fig. 1The invention relates to a printer or similar output device for producing characters on a document fed within its paper transfer passage (1), comprising at least one means arranged in connection with the paper transfer passage for revealing the document , said means comprising a photoemitter (U1) and a photodetector (Q1) arranged in the paper transfer passage (1) so that a document fed to a light propagation path between the photoemitter (1) and the photodetector (Q1) causes a variation in the amount of light received by the photodetector (Q1). According to the invention, to detect the feeding of the document at an arbitrary point of the paper transfer passage without increasing the number of photo-emitters or photodetectors, optical means (2; 3) are provided on the path of light propagation between the photoemitter ( U1) and the photodetector (Q1), said optical means (2; 3) being arranged on the opposite surfaces in the paper transfer passage with a reciprocal spacing in the transverse direction to the paper transfer passage (1) so as to ensure that the light propagates several times through the paper transfer passage before falling onto the photodetector (Q1). Fig. 1

ITTO920537A 1991-06-24 1992-06-23 PRINTER OR SIMILAR OUTPUT DEVICE. IT1259593B (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FI913078A FI88134C (en) 1991-06-24 1991-06-24 Printer or other equivalent output device

Publications (3)

Publication Number Publication Date
ITTO920537A0 ITTO920537A0 (en) 1992-06-23
ITTO920537A1 ITTO920537A1 (en) 1993-12-23
IT1259593B true IT1259593B (en) 1996-03-20

Family

ID=8532781

Family Applications (1)

Application Number Title Priority Date Filing Date
ITTO920537A IT1259593B (en) 1991-06-24 1992-06-23 PRINTER OR SIMILAR OUTPUT DEVICE.

Country Status (6)

Country Link
JP (1) JP3051573B2 (en)
DE (1) DE4219548C2 (en)
ES (1) ES2070034B1 (en)
FI (1) FI88134C (en)
GB (1) GB2257509B (en)
IT (1) IT1259593B (en)

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP3420787B2 (en) * 1992-08-03 2003-06-30 沖電気工業株式会社 Conveyance medium detection device
SE505355C2 (en) * 1992-12-22 1997-08-11 Rue Cash Handling Ab De Device for controlled transport of leaf-shaped material
US5349199A (en) * 1993-04-29 1994-09-20 Xerox Corporation Sensing apparatus for reducing sheet detection and registration errors by using multiple light beam reflections
GB0104067D0 (en) * 2001-02-19 2001-04-04 Rue De Int Ltd A sheet detection system
WO2021194503A1 (en) * 2020-03-27 2021-09-30 Hewlett-Packard Development Company, L.P. Optical data transmissions

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3584226A (en) * 1969-04-14 1971-06-08 Automated Packaging Syst Inc Counting system
GB1352680A (en) * 1970-08-20 1974-05-08 Microfilm Equipment Ltd Sensing system
GB1307664A (en) * 1971-04-22 1973-02-21 Polygraph Leipzig Photo-electric sheet position detecting devices in sheet processing machines
DE3106144A1 (en) * 1981-02-13 1982-08-26 Mannesmann AG, 4000 Düsseldorf CONTROL DEVICE FOR THE RECORDER IN PRINTERS
US5027993A (en) * 1989-08-14 1991-07-02 Precision Handling Devices, Inc. Perforated paper feed apparatus with an optical system for detecting the presence and/or motion of the paper
WO1991006069A2 (en) * 1989-10-10 1991-05-02 Unisys Corporation High-speed power encode module

Also Published As

Publication number Publication date
FI913078A0 (en) 1991-06-24
ITTO920537A1 (en) 1993-12-23
ES2070034B1 (en) 1996-11-16
ITTO920537A0 (en) 1992-06-23
DE4219548A1 (en) 1993-01-07
FI88134C (en) 1993-04-13
ES2070034R (en) 1996-06-01
DE4219548C2 (en) 1995-09-07
FI88134B (en) 1992-12-31
GB9212770D0 (en) 1992-07-29
GB2257509B (en) 1994-12-21
ES2070034A2 (en) 1995-05-16
JPH05221557A (en) 1993-08-31
JP3051573B2 (en) 2000-06-12
GB2257509A (en) 1993-01-13

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Legal Events

Date Code Title Description
0001 Granted
TA Fee payment date (situation as of event date), data collected since 19931001

Effective date: 19970530