WO2000048840A8 - Image forming device - Google Patents

Image forming device

Info

Publication number
WO2000048840A8
WO2000048840A8 PCT/JP2000/000910 JP0000910W WO0048840A8 WO 2000048840 A8 WO2000048840 A8 WO 2000048840A8 JP 0000910 W JP0000910 W JP 0000910W WO 0048840 A8 WO0048840 A8 WO 0048840A8
Authority
WO
WIPO (PCT)
Prior art keywords
image signal
image
control electrodes
voltage
pulse
Prior art date
Application number
PCT/JP2000/000910
Other languages
French (fr)
Japanese (ja)
Other versions
WO2000048840A1 (en
Inventor
Taichi Ito
Akira Kumon
Katsutoshi Ogawa
Akira Fukano
Original Assignee
Matsushita Electric Ind Co Ltd
Array Printers Ab
Taichi Ito
Akira Kumon
Katsutoshi Ogawa
Akira Fukano
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
Priority claimed from JP3837399A external-priority patent/JP2000233526A/en
Priority claimed from JP16771199A external-priority patent/JP2000355116A/en
Application filed by Matsushita Electric Ind Co Ltd, Array Printers Ab, Taichi Ito, Akira Kumon, Katsutoshi Ogawa, Akira Fukano filed Critical Matsushita Electric Ind Co Ltd
Priority to AU25733/00A priority Critical patent/AU2573300A/en
Publication of WO2000048840A1 publication Critical patent/WO2000048840A1/en
Publication of WO2000048840A8 publication Critical patent/WO2000048840A8/en

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
    • B41J2/385—Typewriters or selective printing mechanisms characterised by the printing or marking process for which they are designed characterised by selective supply of electric current or selective application of magnetism to a printing or impression-transfer material
    • B41J2/41—Typewriters or selective printing mechanisms characterised by the printing or marking process for which they are designed characterised by selective supply of electric current or selective application of magnetism to a printing or impression-transfer material for electrostatic printing
    • B41J2/415—Typewriters or selective printing mechanisms characterised by the printing or marking process for which they are designed characterised by selective supply of electric current or selective application of magnetism to a printing or impression-transfer material for electrostatic printing by passing charged particles through a hole or a slit
    • B41J2/4155—Typewriters or selective printing mechanisms characterised by the printing or marking process for which they are designed characterised by selective supply of electric current or selective application of magnetism to a printing or impression-transfer material for electrostatic printing by passing charged particles through a hole or a slit for direct electrostatic printing [DEP]

Landscapes

  • Printers Or Recording Devices Using Electromagnetic And Radiation Means (AREA)

Abstract

An image forming device which feeds toner (2) supplied from a toner carrier (1) to an image receiver (7) via a toner passage hole (4) by applying image-signal-dependent image signal voltages to control electrodes (10), wherein each image signal voltage consists of a plurality of pulse voltages corresponding to an image signal gradation, and an image signal voltage applying time is varied by changing the number of pulse voltages according to an image signal so corrected as to change an image signal gradation and by changing the pulse width of a pulse voltage. An image signal processor (16) provides different voltage potentials or voltage applying times to different control electrodes (10) in downstream-side rows in accordance with image signals corresponding to control electrodes (10) which are in upstream-side rows and adjacent to control electrodes (10) in downstream-side rows in a direction parallel to rows.
PCT/JP2000/000910 1999-02-17 2000-02-17 Image forming device WO2000048840A1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AU25733/00A AU2573300A (en) 1999-02-17 2000-02-17 Image forming device

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
JP3837399A JP2000233526A (en) 1999-02-17 1999-02-17 Image forming apparatus
JP11/38373 1999-02-17
JP16771199A JP2000355116A (en) 1999-06-15 1999-06-15 Image forming apparatus
JP11/167711 1999-06-15

Publications (2)

Publication Number Publication Date
WO2000048840A1 WO2000048840A1 (en) 2000-08-24
WO2000048840A8 true WO2000048840A8 (en) 2000-11-02

Family

ID=26377617

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/JP2000/000910 WO2000048840A1 (en) 1999-02-17 2000-02-17 Image forming device

Country Status (2)

Country Link
AU (1) AU2573300A (en)
WO (1) WO2000048840A1 (en)

Family Cites Families (19)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS63136058A (en) * 1986-11-28 1988-06-08 Fuji Xerox Co Ltd Powder image recorder
JPS63278860A (en) * 1987-05-11 1988-11-16 Oki Electric Ind Co Ltd Drive control circuit of recording head
US5079564A (en) * 1988-11-11 1992-01-07 Ricoh Company, Ltd. Recording apparatus using a time varying distribution of heat element driving pulses
JPH0326557A (en) * 1989-06-26 1991-02-05 Sony Corp Thermal printer
JPH0351145A (en) * 1989-07-20 1991-03-05 Sony Corp Thermal element drive device
DE69122718T2 (en) * 1990-06-26 1997-04-03 Eastman Kodak Co PRINTER WITH LIGHTING DIODE ARRANGEMENT
JPH04163167A (en) * 1990-10-26 1992-06-08 Brother Ind Ltd Dot matrix type printer
JPH04279353A (en) * 1991-03-08 1992-10-05 Brother Ind Ltd Image forming apparatus
JP3132733B2 (en) * 1991-07-16 2001-02-05 沖電気工業株式会社 Driving method of dot print head
JPH0577475A (en) * 1991-09-20 1993-03-30 Brother Ind Ltd Image forming device
JPH0596783A (en) * 1991-10-14 1993-04-20 Mitsubishi Electric Corp Light-emitting diode driver
JPH05177872A (en) * 1991-12-28 1993-07-20 Kyocera Corp Gradation control method in dot image output device
JPH05212904A (en) * 1992-02-04 1993-08-24 Futaba Corp Light quantity control circuit for printer light source
JPH05318812A (en) * 1992-05-19 1993-12-03 Brother Ind Ltd Image forming device
US5404155A (en) * 1992-11-13 1995-04-04 Brother Kogyo Kabushiki Kaisha Image forming apparatus having an aperture electrode with controlled image potential
JPH07256921A (en) * 1994-03-24 1995-10-09 Sanyo Electric Co Ltd Light quantity correction device of fluorescent head
EP0773487A1 (en) * 1995-11-09 1997-05-14 Agfa-Gevaert N.V. A device for direct electrostatic printing (DEP) with "previous correction"
JPH09193446A (en) * 1996-01-24 1997-07-29 Ricoh Co Ltd Method and device for electrostatic powder recording
JPH10337898A (en) * 1997-06-10 1998-12-22 Sharp Corp Image forming apparatus

Also Published As

Publication number Publication date
WO2000048840A1 (en) 2000-08-24
AU2573300A (en) 2000-09-04

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