EP 0640487 A3 19961204 - Thermal dot printer.

Title (en)

Thermal dot printer.

Title (de)

Thermischer Punktdrucker.

Title (fr)

Imprimante thermique par points.

Publication

EP 0640487 A3 19961204 (EN)

Application

EP 94113071 A 19940822

Priority

JP 20912893 A 19930824
JP 22168293 A 19930907
JP 22168393 A 19930907
JP 24924293 A 19931005

Abstract (en)

[origin: EP0640487A2] A thermal dot printer controls energy applied to individual heat generating members (101) to control the amount of heat generated by the heat generating members (101), thereby controlling the ink melting area on an ink ribbon, and transfers the melted ink on a paper to print a gradation image on the paper. The size Lm of each heat generating element (101) in the main scanning direction and the arranging pitch DOPm of the heat generating elements (101) in the main scanning direction have a relationship of Lm </= DOPm x (2/3), while the size Ls of each heat generating element (101) in the sub scanning direction has a relationship of Lm < Ls </= DOPs with respect to the pitch DOPs in the sub scanning direction and the size Lm of the heat generating elements (101) in the main scanning direction. <IMAGE>

IPC 1-7

B41J 2/345

IPC 8 full level

B41J 2/345 (2006.01)

CPC (source: EP KR)

B41J 2/345 (2013.01 - EP KR); B41J 2/3351 (2013.01 - KR); B41J 2/36 (2013.01 - KR)

Citation (search report)

[XA] EP 0500334 A2 19920826 - RISO KAGAKU CORP [JP]
[PX] EP 0572193 A2 19931201 - BROTHER IND LTD [JP]
[X] EP 0371457 A2 19900606 - CANON KK [JP]
[A] EP 0159642 A2 19851030 - HITACHI LTD [JP]
[A] PATENT ABSTRACTS OF JAPAN vol. 11, no. 76 (M - 569)<2523> 7 March 1987 (1987-03-07)
[A] PATENT ABSTRACTS OF JAPAN vol. 12, no. 190 (M - 704)<3037> 3 June 1988 (1988-06-03)
[A] PATENT ABSTRACTS OF JAPAN vol. 13, no. 526 (M - 897) 22 November 1989 (1989-11-22)

Designated contracting state (EPC)

DE FR GB NL

DOCDB simple family (publication)

EP 0640487 A2 19950301; EP 0640487 A3 19961204; KR 950005558 A 19950320; TW 241430 B 19950221

DOCDB simple family (application)

EP 94113071 A 19940822; KR 19940020981 A 19940824; TW 83107664 A 19940822