Printer and ink ribbon cartridge having color block detection means
 A video printing apparatus including a thermal head and accommodating an ink ribbon cartridge having a plurality of color blocks. The apparatus has a subsidiary head which records an identification mark on the color blocks when used in a printing operation. The identification mark is recorded on a predetermined portion of the color block which is not used in a printing operation. A sensor is provided for detecting the identification mark recorded on the used color blocks. 
Sony Corporation
B
B41J
inventional
Hideki Shin Shuji Masaki Kenichi Mutsuko
Ito Iima Sato Shimoha Fukahori Narita