JPS644362A - Thermal printing head - Google Patents

Thermal printing head

Info

Publication number
JPS644362A
JPS644362A JP16070387A JP16070387A JPS644362A JP S644362 A JPS644362 A JP S644362A JP 16070387 A JP16070387 A JP 16070387A JP 16070387 A JP16070387 A JP 16070387A JP S644362 A JPS644362 A JP S644362A
Authority
JP
Japan
Prior art keywords
base material
radiating board
heat
printing head
thermal printing
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
JP16070387A
Other languages
Japanese (ja)
Inventor
Takanari Nagahata
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.)
Rohm Co Ltd
Original Assignee
Rohm 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 Rohm Co Ltd filed Critical Rohm Co Ltd
Priority to JP16070387A priority Critical patent/JPS644362A/en
Publication of JPS644362A publication Critical patent/JPS644362A/en
Pending legal-status Critical Current

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Abstract

PURPOSE:To arbitrarily set the temperature characteristics of heating element in a thermal printing head without changing the outside shape and outside dimension of the thermal printing head, by changing the mixing ratio of either a granular substance having a specific heat or a heat conductivity different from that of a base material or bubbles in the base material of a radiating board. CONSTITUTION:In a base material in a radiating board 4 of aluminum alloy a granular substance 5 having a specific heat or a heat conductivity different from that of aluminum is included by an appropriate amount, whereby the aluminum alloy changes in specific heat or heat transfer coefficient. In this manner, by changing the mixing ratio of the granular substance 5 to the base material, the heat capacity or heat transfer coefficient in the radiating board 4 can be arbitrarily changed under the same condition of the radiating board 4 in thickness T, width dimension S, and length dimension L. The heat capacity or heat transfer coefficient in the radiating board 4 can also be changed under the same condition of the radiating board 4 in thickness T, width dimension S, and length dimension L by an alternative method in which; fine bubbles 6 are included into the base material in the radiating board 4 to make the base material a form metal.
JP16070387A 1987-06-26 1987-06-26 Thermal printing head Pending JPS644362A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP16070387A JPS644362A (en) 1987-06-26 1987-06-26 Thermal printing head

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP16070387A JPS644362A (en) 1987-06-26 1987-06-26 Thermal printing head

Publications (1)

Publication Number Publication Date
JPS644362A true JPS644362A (en) 1989-01-09

Family

ID=15720644

Family Applications (1)

Application Number Title Priority Date Filing Date
JP16070387A Pending JPS644362A (en) 1987-06-26 1987-06-26 Thermal printing head

Country Status (1)

Country Link
JP (1) JPS644362A (en)

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS59181753U (en) * 1983-05-24 1984-12-04 ロ−ム株式会社 thermal printer head
JPS60154138U (en) * 1984-03-27 1985-10-14 東芝テック株式会社 thermal head
JPS62121068A (en) * 1985-11-22 1987-06-02 Hitachi Ltd Thermal head

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS59181753U (en) * 1983-05-24 1984-12-04 ロ−ム株式会社 thermal printer head
JPS60154138U (en) * 1984-03-27 1985-10-14 東芝テック株式会社 thermal head
JPS62121068A (en) * 1985-11-22 1987-06-02 Hitachi Ltd Thermal head

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