JPH01184197A - Color electronic blackboard - Google Patents

Color electronic blackboard

Info

Publication number
JPH01184197A
JPH01184197A JP63009312A JP931288A JPH01184197A JP H01184197 A JPH01184197 A JP H01184197A JP 63009312 A JP63009312 A JP 63009312A JP 931288 A JP931288 A JP 931288A JP H01184197 A JPH01184197 A JP H01184197A
Authority
JP
Japan
Prior art keywords
color
red
cyan
image
ink
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.)
Pending
Application number
JP63009312A
Inventor
Shoji Kondo
Yasuhiro Kyoda
Original Assignee
Minolta Camera Co Ltd
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 Minolta Camera Co Ltd filed Critical Minolta Camera Co Ltd
Priority to JP63009312A priority Critical patent/JPH01184197A/en
Priority claimed from DE1989618119 external-priority patent/DE68918119T2/en
Publication of JPH01184197A publication Critical patent/JPH01184197A/en
Application status is Pending legal-status Critical

Links

Abstract

PURPOSE: To eliminate wastefulness and to increase a printing speed, in an electronic blackboard wherein the image of a writing surface is read by a photodetector and printed by a thermal transfer system, by providing two kinds of red and blue color selecting filters and two color ink films and expressing black by color mixture.
CONSTITUTION: A sheet 10 susceptible to writing and wiping is taken up on the side of a take-up roller 11a by a take-up motor 12 and the image of the sheet 10 is successively exposed by a fluorescent lamp 15 while the reflected light from said image is formed into an image on CCD sensors 18a, 18b through red and blue filters 16B, 16R and lenses 17a, 17b to be converted to an electric signal. As a thermal transfer ink film 33, a facial sequence type ink film having two color inks of red R and cyan C applied thereto is used. A head marker MR is formed to the head part of the red ink R of this ink film and a color detecting marker MC is formed to the head part of the cyan ink C of the ink film. Cyan is used in order to express blue, because cyan has complement relation to red and black can be obtained by the color mixture of both colors. Constitution becomes simple as compared with the combination of three colors. While the completed product is less in color shift.
COPYRIGHT: (C)1989,JPO&Japio
JP63009312A 1988-01-18 1988-01-18 Color electronic blackboard Pending JPH01184197A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP63009312A JPH01184197A (en) 1988-01-18 1988-01-18 Color electronic blackboard

Applications Claiming Priority (5)

Application Number Priority Date Filing Date Title
JP63009312A JPH01184197A (en) 1988-01-18 1988-01-18 Color electronic blackboard
DE1989618119 DE68918119T2 (en) 1988-01-18 1989-01-05 Method and apparatus for producing multi-color images.
DE1989618119 DE68918119D1 (en) 1988-01-18 1989-01-05 Method and apparatus for producing multi-color images.
EP19890100151 EP0325118B1 (en) 1988-01-18 1989-01-05 Method and apparatus for forming multicolored images
US07/296,194 US5023705A (en) 1988-01-18 1989-01-12 Apparatus for forming a three color image including a first, a second, and a black color from two complimentary colors

Publications (1)

Publication Number Publication Date
JPH01184197A true JPH01184197A (en) 1989-07-21

Family

ID=11716957

Family Applications (1)

Application Number Title Priority Date Filing Date
JP63009312A Pending JPH01184197A (en) 1988-01-18 1988-01-18 Color electronic blackboard

Country Status (1)

Country Link
JP (1) JPH01184197A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6753986B1 (en) 1999-11-05 2004-06-22 Brother Kogyo Kabushiki Kaisha Image reading device and electronic whiteboard including the same

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS586667A (en) * 1981-07-03 1983-01-14 Fuji Photo Film Co Ltd Method and device for plane scanning
JPS58173978A (en) * 1982-04-06 1983-10-12 Fuji Xerox Co Ltd Three-color copying machine
JPS6027266A (en) * 1983-07-25 1985-02-12 Toshiba Corp Image forming device
JPS60127864A (en) * 1983-12-14 1985-07-08 Sharp Corp Color original reader
JPS62243495A (en) * 1986-04-16 1987-10-23 Hitachi Ltd Video printer

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS586667A (en) * 1981-07-03 1983-01-14 Fuji Photo Film Co Ltd Method and device for plane scanning
JPS58173978A (en) * 1982-04-06 1983-10-12 Fuji Xerox Co Ltd Three-color copying machine
JPS6027266A (en) * 1983-07-25 1985-02-12 Toshiba Corp Image forming device
JPS60127864A (en) * 1983-12-14 1985-07-08 Sharp Corp Color original reader
JPS62243495A (en) * 1986-04-16 1987-10-23 Hitachi Ltd Video printer

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6753986B1 (en) 1999-11-05 2004-06-22 Brother Kogyo Kabushiki Kaisha Image reading device and electronic whiteboard including the same

Similar Documents

Publication Publication Date Title
EP1136276B1 (en) Thermal transfer method and apparatus therefor
US4721635A (en) Color printed record and method
US4666757A (en) Color printed record
US4741930A (en) Ink jet color printing method
EP0187352B1 (en) A method of ink jet colour printing
US5643387A (en) Instant color sublimation transfers
US4505497A (en) Multi-colored wrapper label with readable data on both sides
GB2148194A (en) Ink jet printer with two printing modes
JPS5945184A (en) Ink ribbon for heat sensitive transfer recording
GB2118730A (en) Heat-sensitive color transfer recording media
EP0847050A3 (en) Optical recording medium
CA2006746A1 (en) High quality thermal jet printer configuration
JPS6151391A (en) Thermal transfer recording medium and its apparatus
JPS641590A (en) Thermal transfer printer, method and ink sheet used therefor
CA2102005A1 (en) Color Ink Jet Recording Method and Apparatus Using Black Ink and Color-Mixed Black Ink
EP0955174A3 (en) Bi-directional printing with controlled hue shifts
JPS63120561A (en) Color picture recording device
JPS60222268A (en) Thermal type color printer
JPS5664884A (en) Color hard copying apparatus
JPH0220347A (en) Convertible multi-color printing machine
JPS61242880A (en) Multicolor forming thermal recording material
JPS6145669A (en) Two-color copying machine
JPS57193377A (en) Recording method for color halftone image
JPH04296595A (en) Video photographic paper
TW362073B (en) Method and apparatus for thermal transfer printing record