HK1052901A1 - Thermal head control apparatus and control method. - Google Patents

Thermal head control apparatus and control method.

Info

Publication number
HK1052901A1
HK1052901A1 HK03105073A HK03105073A HK1052901A1 HK 1052901 A1 HK1052901 A1 HK 1052901A1 HK 03105073 A HK03105073 A HK 03105073A HK 03105073 A HK03105073 A HK 03105073A HK 1052901 A1 HK1052901 A1 HK 1052901A1
Authority
HK
Hong Kong
Prior art keywords
print data
buffer
thermal head
print
control circuit
Prior art date
Application number
HK03105073A
Other versions
HK1052901B (en
Inventor
Satoshi Nakajima
Naohiko Koakutsu
Original Assignee
Seiko Epson Corp
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 Seiko Epson Corp filed Critical Seiko Epson Corp
Publication of HK1052901A1 publication Critical patent/HK1052901A1/en
Publication of HK1052901B publication Critical patent/HK1052901B/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
    • B41J2/315—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
    • B41J2/3555—Historical control
    • 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
    • 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

  • Electronic Switches (AREA)
  • Die Bonding (AREA)
  • Pressure Welding/Diffusion-Bonding (AREA)
  • Continuous Casting (AREA)

Abstract

A control apparatus for controlling a heating element of a thermal head (10) has a print data processing unit (40) and a drive control circuit (50). The print data processing unit (40) has a first processing function for converting first color data to first and second print data, a second processing function for converting second color data to second print data, a first line buffer (43) for storing the first print data, and a second line buffer (44) for storing the first and the second print data. The print data processing unit (40) selectively outputs print data from the first line buffer (43) or print data from the second line buffer (44) to the drive control circuit. The drive control circuit (50) has a print buffer (52) and history buffer (53), and energizes the heating elements of the thermal head (10) based on energizing commands determined by a comparison of the content of the print buffer (52) with that of the history buffer (53). <IMAGE>
HK03105073.6A 2001-06-14 2003-07-14 Thermal head control apparatus and control method HK1052901B (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP2001180233 2001-06-14

Publications (2)

Publication Number Publication Date
HK1052901A1 true HK1052901A1 (en) 2004-01-30
HK1052901B HK1052901B (en) 2005-05-20

Family

ID=19020683

Family Applications (1)

Application Number Title Priority Date Filing Date
HK03105073.6A HK1052901B (en) 2001-06-14 2003-07-14 Thermal head control apparatus and control method

Country Status (7)

Country Link
EP (1) EP1266762B1 (en)
JP (1) JP4596036B2 (en)
KR (1) KR100530648B1 (en)
AT (1) ATE310643T1 (en)
DE (1) DE60207488T2 (en)
ES (1) ES2248448T3 (en)
HK (1) HK1052901B (en)

Families Citing this family (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US7388686B2 (en) 2003-02-25 2008-06-17 Zink Imaging, Llc Image stitching for a multi-head printer
US8377844B2 (en) 2001-05-30 2013-02-19 Zink Imaging, Inc. Thermally-insulating layers and direct thermal imaging members containing same
US7830405B2 (en) * 2005-06-23 2010-11-09 Zink Imaging, Inc. Print head pulsing techniques for multicolor printers
US7391427B2 (en) * 2005-06-28 2008-06-24 Zink Imaging, Llc Parametric programmable thermal printer
JP5652448B2 (en) * 2012-09-03 2015-01-14 ブラザー工業株式会社 Printing device
KR20200123595A (en) * 2019-04-22 2020-10-30 휴렛-팩커드 디벨롭먼트 컴퍼니, 엘.피. Temperature estimation of dc motor based on sensing voltage
US12030323B2 (en) 2020-03-25 2024-07-09 Kyocera Corporation Interface circuit and thermal history control method
WO2021192347A1 (en) * 2020-03-25 2021-09-30 京セラ株式会社 Interface circuit and heat history control method
EP4023449A1 (en) 2020-12-31 2022-07-06 Bizerba SE & Co. KG Method for multicolour thermal direct printing and printer for multicolor thermal direct printing
EP4023448B1 (en) 2020-12-31 2024-06-05 Bizerba SE & Co. KG Method for generating control data for multicolour thermal direct printing

Family Cites Families (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS59190867A (en) * 1983-04-15 1984-10-29 Toshiba Corp Printer
JPH0813546B2 (en) * 1991-07-10 1996-02-14 富士写真フイルム株式会社 Color thermal recording method
JPH06286198A (en) * 1993-03-31 1994-10-11 Fuji Photo Film Co Ltd Thermal head drive controller
JP3197137B2 (en) * 1994-02-08 2001-08-13 富士写真フイルム株式会社 Color thermal recording method
JPH11309894A (en) * 1998-04-28 1999-11-09 Anritsu Corp Printer
JP2000168116A (en) * 1998-12-11 2000-06-20 Nec Kofu Ltd Thermal printer and method for controlling printing
JP3199698B2 (en) * 1999-04-01 2001-08-20 ティーディーケイ株式会社 Thermal head
KR100348038B1 (en) * 1999-07-21 2002-08-09 세이코 엡슨 가부시키가이샤 Multi-value thermal printer and thermal accumulation control thereof
JP2001080099A (en) * 1999-09-16 2001-03-27 Brother Ind Ltd Multicolor thermal printer and electronic blackboard with multicolor thermal printer
JP4147384B2 (en) * 2001-06-14 2008-09-10 セイコーエプソン株式会社 Thermal head control device

Also Published As

Publication number Publication date
HK1052901B (en) 2005-05-20
ES2248448T3 (en) 2006-03-16
JP2008213489A (en) 2008-09-18
JP4596036B2 (en) 2010-12-08
KR20020095439A (en) 2002-12-26
EP1266762A3 (en) 2003-10-22
KR100530648B1 (en) 2005-11-22
DE60207488D1 (en) 2005-12-29
ATE310643T1 (en) 2005-12-15
EP1266762B1 (en) 2005-11-23
EP1266762A2 (en) 2002-12-18
DE60207488T2 (en) 2006-07-27

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Legal Events

Date Code Title Description
PC Patent ceased (i.e. patent has lapsed due to the failure to pay the renewal fee)

Effective date: 20110613