Patent ID: 6910656
Filing Date: 2005-06-28
Classification: B41J

Abstract:
1. An ink ribbon cartridge comprising an ink ribbon spool having opposite hub ends and a rotation axis, a housing-half into which said spool is inserted laterally relative to said rotation axis during cartridge assembly, and a leaf spring that presses against one of said hub ends of said spool to urge said spool in one direction along said rotation axis in said housing-half, is characterized in that: said leaf spring has a mounting frame and a flat spring finger that longitudinally extends from said mounting frame, beginning at an opening in said mounting frame, and at an acute angle from said opening, wherein said flat spring finger depressed at least partially into said opening by said one hub end when said spool is laterally inserted into said housing-half, whereby said flat spring finger will urge said spool in one direction along said rotation axis.