JPS5489732A - Color ink jet printer - Google Patents
Color ink jet printerInfo
- Publication number
- JPS5489732A JPS5489732A JP15802477A JP15802477A JPS5489732A JP S5489732 A JPS5489732 A JP S5489732A JP 15802477 A JP15802477 A JP 15802477A JP 15802477 A JP15802477 A JP 15802477A JP S5489732 A JPS5489732 A JP S5489732A
- Authority
- JP
- Japan
- Prior art keywords
- level
- ink jet
- printing
- dot
- circuit
- 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
Links
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
- B41J—TYPEWRITERS; SELECTIVE PRINTING MECHANISMS, i.e. MECHANISMS PRINTING OTHERWISE THAN FROM A FORME; CORRECTION OF TYPOGRAPHICAL ERRORS
- B41J2/00—Typewriters or selective printing mechanisms characterised by the printing or marking process for which they are designed
- B41J2/005—Typewriters or selective printing mechanisms characterised by the printing or marking process for which they are designed characterised by bringing liquid or particles selectively into contact with a printing material
- B41J2/01—Ink jet
- B41J2/21—Ink jet for multi-colour printing
Landscapes
- Ink Jet (AREA)
- Particle Formation And Scattering Control In Inkjet Printers (AREA)
Abstract
PURPOSE:To improve the quality of a printed image by watching the level of a color ingredient printing signal which drives plural ink jet heads with a detection circuit, and reducing the amount of double printing ink via a delay circuit with the control of a gate circuit. CONSTITUTION:Level detection circuit 6 comprises adder 61 which adds level value of digital three-color signal C, M, Y, D/A converter 62, variable resistor 63 which sets level, and analog comparator 64. If the level of color ingredient printing signal C, M, Y is high, the added value thereof is large, hence the output B of the converter 62 is large, and larger than the set value A of the resistor 63. Thus, the output of the comparator 64 becomes low level such that AND 71 and 73 of gate circuit 7 are opened while 72 and 74 are closed. The signals C, M, Y are given the delay time by delay circuits 53, 51, 54 in order to drive ink jet heads 31-33. Accordingly, printing of cyan dot C and of yellow dot is done with the discrepancies of ta time of scanning distance before and after magenta dot M as the center, hence the area of double record becomes small.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP15802477A JPS5489732A (en) | 1977-12-27 | 1977-12-27 | Color ink jet printer |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP15802477A JPS5489732A (en) | 1977-12-27 | 1977-12-27 | Color ink jet printer |
Publications (2)
Publication Number | Publication Date |
---|---|
JPS5489732A true JPS5489732A (en) | 1979-07-17 |
JPS6151551B2 JPS6151551B2 (en) | 1986-11-10 |
Family
ID=15662599
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP15802477A Granted JPS5489732A (en) | 1977-12-27 | 1977-12-27 | Color ink jet printer |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS5489732A (en) |
Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5867464A (en) * | 1981-08-27 | 1983-04-22 | アグフア−ゲヴエルト・アクチエンゲゼルシヤフト | Method and device for recording reproduction of original, particularly, one of color, by right color tone |
JPS5967060A (en) * | 1982-10-07 | 1984-04-16 | Ricoh Co Ltd | Color recorder |
JPS5998863A (en) * | 1982-11-30 | 1984-06-07 | Matsushita Electric Ind Co Ltd | Ink jet recording apparatus |
EP0649751A3 (en) * | 1993-09-30 | 1997-05-28 | Canon Kk | Image forming method, process and apparatus for producing decorative aluminum plate. |
Families Citing this family (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS6416371U (en) * | 1987-07-22 | 1989-01-26 | ||
JPS62273894A (en) * | 1986-05-23 | 1987-11-27 | 株式会社東芝 | Card type electronic circuit unit |
JPS63119075U (en) * | 1987-01-27 | 1988-08-01 | ||
US4800543A (en) * | 1987-12-03 | 1989-01-24 | Ramtron Corporation | Timepiece communication system |
-
1977
- 1977-12-27 JP JP15802477A patent/JPS5489732A/en active Granted
Cited By (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5867464A (en) * | 1981-08-27 | 1983-04-22 | アグフア−ゲヴエルト・アクチエンゲゼルシヤフト | Method and device for recording reproduction of original, particularly, one of color, by right color tone |
JPS5967060A (en) * | 1982-10-07 | 1984-04-16 | Ricoh Co Ltd | Color recorder |
JPH0370631B2 (en) * | 1982-10-07 | 1991-11-08 | Ricoh Kk | |
JPS5998863A (en) * | 1982-11-30 | 1984-06-07 | Matsushita Electric Ind Co Ltd | Ink jet recording apparatus |
EP0649751A3 (en) * | 1993-09-30 | 1997-05-28 | Canon Kk | Image forming method, process and apparatus for producing decorative aluminum plate. |
US5786835A (en) * | 1993-09-30 | 1998-07-28 | Canon Kabushiki Kaisha | Image forming method, process for producing decorative aluminum plate, apparatus for carrying out the process, decorative aluminum plate, and recording medium |
Also Published As
Publication number | Publication date |
---|---|
JPS6151551B2 (en) | 1986-11-10 |
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