JPS6463171A - Thermal transfer printer - Google Patents

Thermal transfer printer

Info

Publication number
JPS6463171A
JPS6463171A JP62219762A JP21976287A JPS6463171A JP S6463171 A JPS6463171 A JP S6463171A JP 62219762 A JP62219762 A JP 62219762A JP 21976287 A JP21976287 A JP 21976287A JP S6463171 A JPS6463171 A JP S6463171A
Authority
JP
Japan
Prior art keywords
printed density
printed
gradation
heat generating
storage means
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
JP62219762A
Other languages
Japanese (ja)
Inventor
Ryoyu Takanashi
Hidefumi Tanaka
Terumi Ohara
Kenichi Miyazaki
Toshinori Takahashi
Hiroki Kitamura
Tadao Shinya
Yutaka Mizoguchi
Katsuhiko Terada
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.)
Victor Company of Japan Ltd
Original Assignee
Victor Company of Japan 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 Victor Company of Japan Ltd filed Critical Victor Company of Japan Ltd
Priority to JP62219762A priority Critical patent/JPS6463171A/en
Publication of JPS6463171A publication Critical patent/JPS6463171A/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
    • B41J2/315—Typewriters or selective printing mechanisms characterised by the printing or marking process for which they are designed characterised by selective application of heat to a heat sensitive printing or impression-transfer material
    • B41J2/32—Typewriters or selective printing mechanisms characterised by the printing or marking process for which they are designed characterised by selective application of heat to a heat sensitive printing or impression-transfer material using thermal heads
    • B41J2/35—Typewriters or selective printing mechanisms characterised by the printing or marking process for which they are designed characterised by selective application of heat to a heat sensitive printing or impression-transfer material using thermal heads providing current or voltage to the thermal head
    • B41J2/355—Control circuits for heating-element selection
    • B41J2/36—Print density control

Landscapes

  • Accessory Devices And Overall Control Thereof (AREA)
  • Electronic Switches (AREA)

Abstract

PURPOSE:To easily correct unevenness of printed density, by providing a converting means for such a conversion as to correct the gradation of printing line input data for picture elements corresponding to respective heat generating resistors on the basis of printed density data read from a storage means. CONSTITUTION:The printed density of each picture element corresponding to each heat generating resistor in a line thermal head 4 is detected from a sample print row printed on a recording paper, by an optical printed density detecting means (5-8), and the printed density data thus obtained is stored in a storage means 12. At the time of printing, the gradation of printing line input data on the basis of each picture element corresponding to each heat generating resistor in the thermal head 4 is corrected by a D/T converter 15 for the printing line input data, based on the printed density data read from the storage means 12. For example, when an input gradation is high, an energization time for the resistors is prolonged to enlarge the size of dots transferred onto a recording paper 3, thereby reducing unevenness of printed density in a main scanning direction.
JP62219762A 1987-09-02 1987-09-02 Thermal transfer printer Pending JPS6463171A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP62219762A JPS6463171A (en) 1987-09-02 1987-09-02 Thermal transfer printer

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP62219762A JPS6463171A (en) 1987-09-02 1987-09-02 Thermal transfer printer

Publications (1)

Publication Number Publication Date
JPS6463171A true JPS6463171A (en) 1989-03-09

Family

ID=16740603

Family Applications (1)

Application Number Title Priority Date Filing Date
JP62219762A Pending JPS6463171A (en) 1987-09-02 1987-09-02 Thermal transfer printer

Country Status (1)

Country Link
JP (1) JPS6463171A (en)

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH01281960A (en) * 1988-05-10 1989-11-13 Mitsubishi Electric Corp Devices for detecting and correcting recording density irregularity and method for correcting the irregularity
JPH02286341A (en) * 1989-04-28 1990-11-26 Canon Inc Picture image recorder
JPH02299862A (en) * 1989-05-13 1990-12-12 Kyocera Corp Thermal head, recording device using it and device for preparation of recording density correction data
JPH04147870A (en) * 1990-10-11 1992-05-21 Fuji Photo Film Co Ltd Method for correcting density in image recording
US9670111B2 (en) 2012-09-18 2017-06-06 National University Corporation Hokkaido University Catalyst for producing isobutylene and method for producing isobutylene using the same

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH01281960A (en) * 1988-05-10 1989-11-13 Mitsubishi Electric Corp Devices for detecting and correcting recording density irregularity and method for correcting the irregularity
JPH02286341A (en) * 1989-04-28 1990-11-26 Canon Inc Picture image recorder
JPH02299862A (en) * 1989-05-13 1990-12-12 Kyocera Corp Thermal head, recording device using it and device for preparation of recording density correction data
JPH04147870A (en) * 1990-10-11 1992-05-21 Fuji Photo Film Co Ltd Method for correcting density in image recording
US9670111B2 (en) 2012-09-18 2017-06-06 National University Corporation Hokkaido University Catalyst for producing isobutylene and method for producing isobutylene using the same
US9815748B2 (en) 2012-09-18 2017-11-14 National University Corporation Hokkaido University Catalyst for producing isobutylene and method for producing isobutylene using the same

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