EP 0405825 A2 19910102 - Thermal printing apparatus.
Title (en)
Thermal printing apparatus.
Title (de)
Thermodrucker.
Title (fr)
Appareil d'impression thermique.
Publication
Application
Priority
JP 16728289 A 19890629
Abstract (en)
A thermal printing apparatus (1) comprises a printing head (2) having a plurality of heating devices (R) for printing an image, and a driving device (4, 5, 6) for driving the heating devices (R) so as to gradate the image, wherein the plurality of heating devices (R) are grouped into a plurality of blocks and the driving device (4, 5, 6) drives the printing head (2) sequentially at each block in dependence on each required gradational level.
IPC 1-7
IPC 8 full level
B41J 2/355 (2006.01); B41J 2/36 (2006.01); H04N 1/23 (2006.01)
CPC (source: EP KR)
Designated contracting state (EPC)
DE FR GB
DOCDB simple family (publication)
EP 0405825 A2 19910102; EP 0405825 A3 19910515; JP H0332861 A 19910213; KR 910000365 A 19910129
DOCDB simple family (application)
EP 90306733 A 19900620; JP 16728289 A 19890629; KR 900007306 A 19900522