FR2446720A1 - DEVICE FOR CONTROLLING THE INK SUPPLY OF A PRINTING MACHINE - Google Patents

DEVICE FOR CONTROLLING THE INK SUPPLY OF A PRINTING MACHINE

Info

Publication number
FR2446720A1
FR2446720A1 FR8001126A FR8001126A FR2446720A1 FR 2446720 A1 FR2446720 A1 FR 2446720A1 FR 8001126 A FR8001126 A FR 8001126A FR 8001126 A FR8001126 A FR 8001126A FR 2446720 A1 FR2446720 A1 FR 2446720A1
Authority
FR
France
Prior art keywords
controlling
ink supply
printing machine
measuring head
different
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.)
Granted
Application number
FR8001126A
Other languages
French (fr)
Other versions
FR2446720B1 (en
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Grapho Metronic Mess und Regeltechnik GmbH and Co KG
Original Assignee
Grapho Metronic Mess und Regeltechnik GmbH and Co KG
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 by Grapho Metronic Mess und Regeltechnik GmbH and Co KG filed Critical Grapho Metronic Mess und Regeltechnik GmbH and Co KG
Publication of FR2446720A1 publication Critical patent/FR2446720A1/en
Application granted granted Critical
Publication of FR2446720B1 publication Critical patent/FR2446720B1/fr
Granted legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01J—MEASUREMENT OF INTENSITY, VELOCITY, SPECTRAL CONTENT, POLARISATION, PHASE OR PULSE CHARACTERISTICS OF INFRARED, VISIBLE OR ULTRAVIOLET LIGHT; COLORIMETRY; RADIATION PYROMETRY
    • G01J3/00—Spectrometry; Spectrophotometry; Monochromators; Measuring colours
    • G01J3/46—Measurement of colour; Colour measuring devices, e.g. colorimeters
    • G01J3/50—Measurement of colour; Colour measuring devices, e.g. colorimeters using electric radiation detectors
    • G01J3/51—Measurement of colour; Colour measuring devices, e.g. colorimeters using electric radiation detectors using colour filters
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
    • B41F—PRINTING MACHINES OR PRESSES
    • B41F31/00—Inking arrangements or devices
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
    • B41F—PRINTING MACHINES OR PRESSES
    • B41F33/00—Indicating, counting, warning, control or safety devices
    • B41F33/0036—Devices for scanning or checking the printed matter for quality control
    • B41F33/0045—Devices for scanning or checking the printed matter for quality control for automatically regulating the ink supply

Landscapes

  • Physics & Mathematics (AREA)
  • Spectroscopy & Molecular Physics (AREA)
  • General Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Quality & Reliability (AREA)
  • Spectrometry And Color Measurement (AREA)
  • Inking, Control Or Cleaning Of Printing Machines (AREA)

Abstract

Dispositif de commande de l'alimentation en encre d'une machine à imprimer à feuilles faisant appel à la mesure de la densité optique des différentes zones colorées d'une bande de contrôle de couleurs au moyen d'une tête de mesure comprenant une source lumineuse et une cellule photo-électrique. La tête de mesure 1 comporte une roue 18 tournant de façon uniforme qui est placée devant la cellule photo-électrique 24 et porte différents filtres 20 à 23, les valeurs de mesure d'intensité délivrées par la cellule photo-électrique 24 étant converties dans un amplificateur 25 en valeurs de mesure de densité et étant transmises par un circuit formant commutateur 26, en synchronisme avec les filtres 20 à 23, à différentes mémoires 30 à 33 dont les signaux de sortie sont utilisés pour déterminer les limites des zones colorées. L'invention est applicable à l'impression polychrome.Device for controlling the ink supply of a sheet-fed printing machine using the measurement of the optical density of the different colored areas of a color control strip by means of a measuring head comprising a light source and a photocell. The measuring head 1 comprises a uniformly rotating wheel 18 which is placed in front of the photoelectric cell 24 and carries different filters 20 to 23, the intensity measurement values delivered by the photoelectric cell 24 being converted into a amplifier 25 in density measurement values and being transmitted by a switch circuit 26, in synchronism with filters 20 to 23, to different memories 30 to 33 whose output signals are used to determine the limits of the colored areas. The invention is applicable to polychrome printing.

FR8001126A 1979-01-19 1980-01-18 DEVICE FOR CONTROLLING THE INK SUPPLY OF A PRINTING MACHINE Granted FR2446720A1 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE19792901980 DE2901980C2 (en) 1979-01-19 1979-01-19 Device for controlling the inking unit of a sheet-fed offset printing machine

Publications (2)

Publication Number Publication Date
FR2446720A1 true FR2446720A1 (en) 1980-08-14
FR2446720B1 FR2446720B1 (en) 1984-02-24

Family

ID=6060920

Family Applications (1)

Application Number Title Priority Date Filing Date
FR8001126A Granted FR2446720A1 (en) 1979-01-19 1980-01-18 DEVICE FOR CONTROLLING THE INK SUPPLY OF A PRINTING MACHINE

Country Status (4)

Country Link
CH (1) CH650200A5 (en)
DE (1) DE2901980C2 (en)
FR (1) FR2446720A1 (en)
GB (1) GB2043883B (en)

Families Citing this family (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3046417A1 (en) * 1980-12-10 1982-07-29 Licentia Patent-Verwaltungs-Gmbh, 6000 Frankfurt Rotary printing press continuous quality control system - feeds printed colour levels from measuring head under control of counter
DE3220300C1 (en) * 1982-05-28 1983-08-11 Grapho-Metronic Meß- und Regeltechnik GmbH & Co KG, 8000 München Coordinating table with a device for scanning a colour control strip printed along a sheet edge
DE3220799C2 (en) * 1982-06-03 1985-03-07 Koenig & Bauer AG, 8700 Würzburg Device on a measuring desk for recording densitometric values
DE3220803C2 (en) * 1982-06-03 1994-03-10 Heidelberger Druckmasch Ag Color density measuring system for determining the color density values of printed products
EP0114914B1 (en) * 1983-01-29 1987-04-22 M.A.N.-ROLAND Druckmaschinen Aktiengesellschaft Device for detecting and evaluating colour control strips on a printing sheet
CH653618A5 (en) * 1983-06-21 1986-01-15 Bobst Sa METHOD AND DEVICE FOR CONSTANTLY MAINTAINING THE DENSITY OF A PRINTED COLOR.
EP0134321A1 (en) * 1983-08-11 1985-03-20 Van den Bosch, Francois J.G. Non-invasive reflectance spectrophotometrics apparatus
JP2657914B2 (en) * 1986-12-08 1997-09-30 株式会社 小森コーポレーション Scanning densitometer measurement position synchronization method
DE102004035786B4 (en) * 2004-03-23 2010-04-01 Koenig & Bauer Aktiengesellschaft Inline inspection systems
ATE459865T1 (en) 2004-05-05 2010-03-15 X Rite Inc SPECTROPHOTOMETER WITH AUTO-TRACKING

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4003660A (en) * 1975-12-03 1977-01-18 Hunter Associates Laboratory, Inc. Sensing head assembly for multi-color printing press on-line densitometer
FR2319126A1 (en) * 1975-07-21 1977-02-18 Hallmark Cards DENSITOMETRIC METHOD AND APPARATUS FOR ADJUSTING THE COLORS OF A MULTI-COLOR PRINT

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB822444A (en) * 1956-09-05 1959-10-28 Crosfield J F Ltd Improvements relating to printing processes
US3367230A (en) * 1963-12-04 1968-02-06 Welch Scient Company Light density scanning device
US3756725A (en) * 1970-10-12 1973-09-04 Harris Intertype Corp Measurement and control of ink density
CH538680A (en) * 1971-11-03 1973-06-30 Gretag Ag Method and device for the automatic measurement of the color density of printing inks applied to a moving web, in particular in multi-color gravure printing
DE2728738B2 (en) * 1977-06-25 1979-05-10 Roland Offsetmaschinenfabrik Faber & Schleicher Ag, 6050 Offenbach Eulrichtung for checking and regulating the coloring on printing machines

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2319126A1 (en) * 1975-07-21 1977-02-18 Hallmark Cards DENSITOMETRIC METHOD AND APPARATUS FOR ADJUSTING THE COLORS OF A MULTI-COLOR PRINT
US4003660A (en) * 1975-12-03 1977-01-18 Hunter Associates Laboratory, Inc. Sensing head assembly for multi-color printing press on-line densitometer

Also Published As

Publication number Publication date
GB2043883B (en) 1983-04-20
DE2901980C2 (en) 1982-09-16
GB2043883A (en) 1980-10-08
CH650200A5 (en) 1985-07-15
DE2901980A1 (en) 1980-07-24
FR2446720B1 (en) 1984-02-24

Similar Documents

Publication Publication Date Title
FR2446720A1 (en) DEVICE FOR CONTROLLING THE INK SUPPLY OF A PRINTING MACHINE
US3484793A (en) Image recording apparatus ink droplet recorder with optical input
FR2427201A1 (en) THERMAL TRANSFER COLOR PRINTING MACHINE
ES2100248T3 (en) DEVICE TO READ BRIGHT COLOR BRANDS ON A PRINTING MACHINE.
ATE138816T1 (en) DEVICE FOR APPLYING WITH LIGHT
GB1126841A (en) Improvements in photometric method and apparatus
US4639127A (en) Exposure apparatus for printing system
FR2612452B1 (en) INK TAPE POSITIONING DEVICE AND COLOR PRINTING APPARATUS
BE844678A (en) COLOR MARKING DEVICE FOR PRINTING ON LIGHT MATERIALS
FR1485735A (en) Printing device on a moving tape by means of an ink ribbon
FR2349862A1 (en) PROCESS AND DEVICE FOR CONTROL OF THE QUALITY OF A PRINT, IN PARTICULAR BANK NOTES
GB1300843A (en) Process and apparatus for the reproduction of photographic originals
GB1230173A (en)
SE9602934L (en) Arrangements for automatic setting of printers and materials therefor
IT1219908B (en) SCREEN PRINTING DEVICE TO APPLY A MULTIPLICITY OF COLORS IN A DATA ORDER ON PRINT MATERIAL IN A MANNER TO OBTAIN A MULTI-COLOR PRINTED DRAWING ON IT
GB1135536A (en) Method and apparatus for automatic exposure regulation in a photographic colour printing process
GB9107037D0 (en) Improvements in or relating to electro-optical measurement apparatus
ATE137598T1 (en) IMPROVEMENTS TO AND RELATED TO THE GENERATION OF TRADE RECORDS
DE69113957D1 (en) Method and device for controlling the moisture and color balance on a printing plate of an offset machine.
GB1020783A (en) Process and apparatus for measuring photographic exposure time
EP0039533A1 (en) Densitometer
JPS6461272A (en) Thermal recording device
FR2625002B1 (en) DEVICE FOR COMPOSING PRINTING WHEELS IN A POSTAGE APPARATUS
GB1406389A (en) Photographic colour printing apparatus
JPS5698639A (en) Printed matter testing device

Legal Events

Date Code Title Description
ST Notification of lapse