| 摘要 |
Cartridges 4 and 5 are configured, such that first convex ribs 428a and 528a abut against second wall surfaces 762 of cartridge engagement wall surfaces 760 inclined with respect to a bottom wall 712 of a cartridge attachment structure 7 and move in friction with the second wall surfaces 762. Such abutting and moving causes contact portions of terminals 412 and 512 of circuit substrates 410 and 510 of the respective cartridges 4 and 5 to come into contact with electrode assemblies 810 of a carriage 8. This configuration enhances the reliability of electric connection between a contact portion, such as a circuit substrate, of a liquid supply unit and an electrode assembly, such as contact pins, of a carriage in the course of attachment. |
| 主权项 |
1. A liquid supply unit mountable to and demountable from an attachment structure comprising a bottom wall, a side wall arranged to intersect with the bottom wall, an end wall arranged to intersect with the bottom wall and the side wall and an electrode assembly provided at a position opposed to the end wall, the liquid supply unit comprising: a first surface member; a second surface member; a third surface member; and a contact portion,
wherein in an attachment state that the liquid supply unit is attached to the attachment structure,
the first surface member faces the bottom wall,the second surface member faces the side wall,the third surface member faces the end wall, andthe contact portion is electrically connectable with the electrode assembly, whereinthe second surface member has a restriction portion configured to restrict a distance of friction of the contact portion against the electrode assembly in the course of attachment of the liquid supply unit to the attachment state. |
