Fitzpatrick, Cella, Harper & Scinto
Ink-jet recording system and ink-jet recording method
 An ink-jet recording system comprising applying droplets of water-based inks of a yellow ink, a magenta ink, a cyan ink and a black ink onto a recording medium comprising a substrate paper having a surface layer comprising a pigment and a fibrous substance of the substrate paper which are present in a mixed state, and said recording medium having a Stockigt sizing degree ranging from 0 to 15 seconds, to carry out recording, wherein; at least an ink with a dye concentration ranging from 2.5 to 4.5% by weight is used as said black ink; and the recording is carried out in a maximum ink-adhering quantity ranging from 14 nl/mm.sup.2 to 20 nl/mm.sup.2 and in a maximum print-overlap number ranging from 2 to 2.5, is provided. 
Canon Kabushiki Kaisha
B B B
B41M B41M B41M
additional inventional inventional
Hiroshi Tomomi Mamoru Shoji
Sato Nakatsugawa Sakaki Koike