# US 7,744,179 B2 · Recording apparatus and recording method > Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt - Number: US 7,744,179 B2 - Document ID: US7744179B2 - Status: Granted - Kind: B2 - Application number: 11/810,398 - Filed: 2007-06-05 - Published: 2008-06-12 - Granted: 2010-06-29 - Earliest claimed: 2006-12-06 - Assignees: Fuji Xerox Co., Ltd. - Inventors: Takatsugu Doi; Masaya Ikuno; Ken Hashimoto - Web page: https://patentgrep.com/patent/US7744179B2 ## CPC - B41J 2/0057: {where an intermediate transfer member receives the ink before transferring it on the printing material} - B41J: TYPEWRITERS; SELECTIVE PRINTING MECHANISMS, i.e. MECHANISMS PRINTING OTHERWISE THAN FROM A FORME; CORRECTION OF TYPOGRAPHICAL ERRORS ## Abstract A recording apparatus has an intermediate transfer member; a feeding unit that feeds, to the intermediate transfer member, ink receptive particles containing at least an organic resin whose monomers include at least one polar monomer having at least one polar group, a ratio of the at least one polar monomer to all the monomers of the organic resin being about 10 mol % to about 90 mol %; a liquid application unit that applies a liquid that neutralizes the at least one polar group of the at least one polar monomer onto the ink receptive particles fed onto the intermediate transfer member; an ink application unit that applies an ink to the ink receptive particles fed onto the intermediate transfer member; a transfer unit that transfers the ink receptive particles onto a recording medium; and a fixing unit that fixes the ink receptive particles on the recording medium. ## Claims ### Claim 1 A recording apparatus comprising: an intermediate transfer member; a feeding unit that feeds, to the intermediate transfer member, ink receptive particles containing at least an organic resin whose monomers include at least one polar monomer having at least one polar group, a ratio of the at least one polar monomer to all the monomers of the organic resin being about 10 mol % to about 90 mol %; a liquid application unit that applies a liquid that neutralizes the at least one polar group of the at least one polar monomer, onto the ink receptive particles fed onto the intermediate transfer member; an ink application unit that applies an ink to the ink receptive particles fed onto the intermediate transfer member; a transfer unit that transfers the ink receptive particles onto a recording medium; and a fixing unit that fixes the ink receptive particles on the recording medium. ### Claim 2 (depends on 1) The recording apparatus of claim 1, wherein the amount of the liquid applied is about 0.25 to about 5 g/m2. ### Claim 3 (depends on 1) The recording apparatus of claim 1, wherein the amount of the liquid applied is about 0.5 to about 2.0 g/m2. ### Claim 4 (depends on 1) The recording apparatus of claim 1, wherein a mass ratio of the liquid applied to the ink receptive particles per unit area is about 1 to about 30%. ### Claim 5 (depends on 1) The recording apparatus of claim 1, wherein a mass ratio of the liquid applied to the ink receptive particles per unit area is about 1 to about 20%. ### Claim 6 (depends on 1) The recording apparatus of claim 1, wherein the at least one polar group of the at least one polar monomer is anionic and the pH of the liquid is about 8 or more. ### Claim 7 (depends on 1) The recording apparatus of claim 1, wherein the at least one polar group of the at least one polar monomer is cationic and the pH of the liquid is about 6 or less. ### Claim 8 (depends on 1) The recording apparatus of claim 1, wherein the surface tension of the liquid is about 20 to about 35 mN/m. ### Claim 9 A recording apparatus comprising: a feeding unit that feeds, to a recording medium, ink receptive particles containing at least a resin whose monomers include at least one polar monomer having at least one polar group, a ratio of the at least one polar monomer to all the monomers of the resin being about 10 mol % to about 90 mol %; a liquid application unit that applies a liquid that neutralizes the at least one polar group of the at least one polar monomer, onto the ink receptive particles fed onto the recording medium; an ink application unit that applies an ink to the ink receptive particles fed onto the recording medium; and a fixing unit that fixes the ink receptive particles on the recording medium. ### Claim 10 (depends on 9) The recording apparatus of claim 9, wherein the amount of the liquid applied is about 0.25 to about 5 g/m2. ### Claim 11 (depends on 9) The recording apparatus of claim 9, wherein the amount of the liquid applied is about 0.5 to about 2.0 g/m2. ### Claim 12 (depends on 9) The recording apparatus of claim 9, wherein a mass ratio of the liquid applied to the ink receptive particles per unit area is about 1 to about 30%. ### Claim 13 (depends on 9) The recording apparatus of claim 9, wherein a mass ratio of the liquid applied to the ink receptive particles per unit area is about 1 to about 20%. ### Claim 14 (depends on 9) The recording apparatus of claim 9, wherein the at least one polar group of the at least one polar monomer is anionic and the pH of the liquid is about 8 or more. ### Claim 15 (depends on 9) The recording apparatus of claim 9, wherein the at least one polar group of the at least one polar monomer is cationic and the pH of the liquid is about 6 or less. ### Claim 16 (depends on 9) The recording apparatus of claim 9, Wherein the surface tension of the liquid is about 20 to about 35 mN/m. ### Claim 17 A recording method comprising: feeding, to an intermediate transfer member, ink receptive particles containing at least an organic resin whose monomers include at least one polar monomer having at least one polar group, a ratio of the at least one polar monomer to all the monomers of the organic resin being about 10 mol % to about 90 mol %; applying a liquid that neutralizes the at least one polar group of the at least one polar monomer, onto the ink receptive particles fed onto the intermediate transfer member; applying an ink to the ink receptive particles fed onto the intermediate transfer member; transferring the ink receptive particles onto a recording medium; and fixing the ink receptive particles on the recording medium. ### Claim 18 A recording method comprising: feeding, to a recording medium, ink receptive particles containing at least a resin whose monomers include at least one polar monomer having at least one polar group, a ratio of the at least one polar monomer to all the monomers of the resin being about 10 mol % to about 90 mol %; applying a liquid that neutralizes the at least one polar group of the at least one polar monomer, onto the ink receptive particles fed onto the recording medium; applying an ink to the ink receptive particles fed onto the recording medium; and fixing the ink receptive particles on the recording medium.