JPS5789973A - Ink jet printer - Google Patents

Ink jet printer

Info

Publication number
JPS5789973A
JPS5789973A JP16717480A JP16717480A JPS5789973A JP S5789973 A JPS5789973 A JP S5789973A JP 16717480 A JP16717480 A JP 16717480A JP 16717480 A JP16717480 A JP 16717480A JP S5789973 A JPS5789973 A JP S5789973A
Authority
JP
Japan
Prior art keywords
picture
picture elements
interval
recorded
scanning lines
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
JP16717480A
Other languages
Japanese (ja)
Inventor
Harunori Tachikawa
Michihisa Suga
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.)
NEC Corp
Original Assignee
NEC Corp
Nippon Electric 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 NEC Corp, Nippon Electric Co Ltd filed Critical NEC Corp
Priority to JP16717480A priority Critical patent/JPS5789973A/en
Publication of JPS5789973A publication Critical patent/JPS5789973A/en
Pending legal-status Critical Current

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
    • B41J2/205—Ink jet for printing a discrete number of tones

Landscapes

  • Particle Formation And Scattering Control In Inkjet Printers (AREA)

Abstract

PURPOSE:To improve the quality of recording picture elements by arranging plural nozzles each of which forms picture elements of which diameter is less than a half of the interval between scanning lines and by selectively varying the number of jetting nozzle to be operated according to the coarseness or fineness of a picture to be transmitted or received. CONSTITUTION:Two heads are installed to a carriage and a source of recording signal is connected to both heads through a change-over switch. When an original for transmission, (A), is scanned, picture signals, (B), are generated and when these signals are recorded by a conventional head which prints picture elements of which diameter equals the interval between scanning lines, recorded picture elements are forced to overflow as shown in (C). In the case of this invention, the printer uses 2 nozzles which record picture elements of which diameter is about a 1/2 of the interval between scanning lines, therefore the boundary between a white part and a black part can be clearly defined. Even if a picture is recorded at a line density of 2 times finer than that of (D), the resolution of the image is not degraded as shown in (E).
JP16717480A 1980-11-27 1980-11-27 Ink jet printer Pending JPS5789973A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP16717480A JPS5789973A (en) 1980-11-27 1980-11-27 Ink jet printer

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP16717480A JPS5789973A (en) 1980-11-27 1980-11-27 Ink jet printer

Publications (1)

Publication Number Publication Date
JPS5789973A true JPS5789973A (en) 1982-06-04

Family

ID=15844784

Family Applications (1)

Application Number Title Priority Date Filing Date
JP16717480A Pending JPS5789973A (en) 1980-11-27 1980-11-27 Ink jet printer

Country Status (1)

Country Link
JP (1) JPS5789973A (en)

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0378387A2 (en) * 1989-01-11 1990-07-18 Canon Kabushiki Kaisha Ink jet recording method
JPH02184442A (en) * 1989-01-11 1990-07-18 Canon Inc Ink jet recording method
JPH02184441A (en) * 1989-01-11 1990-07-18 Canon Inc Ink jet recording method
JPH02235752A (en) * 1989-03-10 1990-09-18 Canon Inc Ink jet recording apparatus and method
US5216445A (en) * 1989-01-11 1993-06-01 Canon Kabushiki Kaisha Ink jet recording method using plural dots to form each recording unit

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0378387A2 (en) * 1989-01-11 1990-07-18 Canon Kabushiki Kaisha Ink jet recording method
JPH02184442A (en) * 1989-01-11 1990-07-18 Canon Inc Ink jet recording method
JPH02184441A (en) * 1989-01-11 1990-07-18 Canon Inc Ink jet recording method
US5216445A (en) * 1989-01-11 1993-06-01 Canon Kabushiki Kaisha Ink jet recording method using plural dots to form each recording unit
JP2795661B2 (en) * 1989-01-11 1998-09-10 キヤノン株式会社 Inkjet recording method
JPH02235752A (en) * 1989-03-10 1990-09-18 Canon Inc Ink jet recording apparatus and method

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