Ink ribbon cartridge
 An ink ribbon cartridge is composed of an ink ribbon unit having an ink ribbon, and a spool member on which the ink ribbon is wound includes a first identifying portion to identify the type of the ink ribbon wound thereon; and a holder to house the ink ribbon unit therein, having a base portion, a pair of wall portions facingly extended from the base portion to support the ink ribbon unit by establishing an engagement therewith, and plurality of second identifying portions to identify the type of the holder having the same appearance as the first identifying portion. The first and second identifying portions may be colored portions. The second identifying portions may be formed in labels adhered on the holder on which a method for housing the spool member into the holder is provided. The ink ribbon unit can be provided from a package on which a third identifying portion having the same color as the first and second identifying portions is formed. 
Sony Corporation
B
B41J
inventional
Takeshi Toyoko
Nakajima Fujii