Patent ID: 7284806
Filing Date: 2007-10-23
Classification: B41J

Abstract:
1. A method of introducing ink in an ink-jet recording apparatus comprising an ink-jet printing head which ejects, to a recording medium, the ink through nozzles thereof, wherein said apparatus includes a mounting portion on which an ink package accommodating the ink is removably mounted, and an ink-introducing device which introduces, into said ink-jet printing head, the ink accommodated in said ink package that is mounted on said mounting portion, said method comprising the steps of: a first ink-introducing step of initially introducing a first ink having a first degree of deaeration, into said ink-jet printing head when said ink-jet printing head is initially used, said first ink-introducing step comprising (a) mounting, as said ink package, an initial-use ink package accommodating said first ink, on said mounting portion and (b) introducing said first ink into said ink-jet printing head by said ink-introducing device; and a second ink-introducing step of subsequently introducing a second ink having a second degree of dearation lower than said first degree of deaeration, into said ink-jet printing head after said first ink-introducing step, said second ink-introducing step comprising (a) mounting, as said ink package, a replacement ink package accommodating said second ink, on said mounting portion, for replacing said ink package which has been mounted on said mounting portion immediately before said replacement ink package is mounted, and (b) introducing said second ink into said ink-jet printing head by said ink-introducing device; and wherein said initial-use ink package is in a state, before mounting thereof on said mounting portion, in which said initial-use ink package is enclosed such that said first ink in said initial-use ink package maintains said first degree of deaeration which is higher than said second degree of deaeration of said second ink in said replacement ink package.