EP 0100776 B1 19860129 - METHOD FOR ADAPTIVELY USING A PRINT RIBBON IN AN IMPACT PRINTER
Title (en)
METHOD FOR ADAPTIVELY USING A PRINT RIBBON IN AN IMPACT PRINTER
Publication
Application
Priority
EP 82107233 A 19820810
Abstract (en)
[origin: EP0100776A1] Rather than transporting the entire multi-colour print ribbon (18) in an impact printer back and forth until the reaching of a lower quality threshold requires replacement, this method provides for the use of only a subsection of limited length of the ribbon to be used until the lower quality threshold of any one of the colour tracks (21-24) of this subsection is reached, and then advancing to a fresh subsection. The quality status of the current subsection may be monitored by counting the number of impacts on each individual colour track and comparing that number with a predetermined, stored value, or by shining light through the ribbon and optically comparing the passing light with a preset value. The method is flexible enough to permit manual advance of the ribbon (18) to a fresh subsection in case a printing job requires highest possible quality.
IPC 1-7
IPC 8 full level
B41J 33/40 (2006.01); B41J 31/16 (2006.01); B41J 33/36 (2006.01); B41J 33/44 (2006.01); B41J 33/54 (2006.01); B41J 33/60 (2006.01); B41J 35/10 (2006.01); B41J 35/14 (2006.01)
CPC (source: EP)
B41J 31/16 (2013.01); B41J 33/36 (2013.01)
Designated contracting state (EPC)
DE FR GB IT
DOCDB simple family (publication)
EP 0100776 A1 19840222; EP 0100776 B1 19860129; CA 1204335 A 19860513; DE 3268815 D1 19860313; JP H0234315 B2 19900802; JP S5929189 A 19840216
DOCDB simple family (application)
EP 82107233 A 19820810; CA 431793 A 19830705; DE 3268815 T 19820810; JP 8777983 A 19830520