Patent ID: 6467889
Filing Date: 2002-10-22
Classification: B41J

Abstract:
A method for manufacturing an ink tank detachably mountable on a liquid jet recording apparatus, said ink tank having a housing constructed to retain liquid directly in an interior thereof, a supply portion for supplying the liquid retained in said housing to said liquid jet recording apparatus, and a communication portion for communicating the interior of said housing with the air outside, said ink tank being insertable in said liquid jet recording apparatus in an insertion direction, and said supply portion and said communication portion both being connectable to said liquid jet recording apparatus in a connection direction substantially perpendicular to said insertion direction, said method comprising the following steps of:preparing a plate member provided with said supply portion and said communication portion on the same surface, said plate member being provided with erroneous installation prevention portions for preventing installation of said ink tank on a position other than that specifically designated for said liquid jet recording apparatus; positioning said plate member with respect to said housing, wherein said plate member is positioned in two directions orthogonal to the insertion direction, the two directions intersecting each other with respect to said housing; and welding said plate member to said housing, whereby said plate member is joined to said housing to make the interior thereof a substantially closed space.