# US 2014/0198147 A1 · Liquid discharging apparatus > Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt - Number: US 2014/0198147 A1 - Document ID: US20140198147A1 - Status: Published application - Kind: A1 - Application number: 14/150,415 - Filed: 2014-01-08 - Published: 2014-07-17 - Earliest claimed: 2013-01-15 - Assignees: Seiko Epson Corporation - Applicants: Seiko Epson Corporation - Inventors: Tsuneyuki SASAKI; Osamu HARA - Web page: https://patentgrep.com/patent/US20140198147A1 ## CPC - B41J 11/00212: {Controlling the irradiation means, e.g. image-based controlling of the irradiation zone or control of the duration or intensity of the irradiation} - B41J 11/0015: {for treating before, during or after printing or for uniform coating or laminating the copy material before or after printing (selective coating B41J2/2114)} - B41J 11/00216: {using infrared [IR] radiation or microwaves} - B41J 11/0095: {Detecting means for copy material, e.g. for detecting or sensing presence of copy material or its leading or trailing end} - B41J: TYPEWRITERS; SELECTIVE PRINTING MECHANISMS, i.e. MECHANISMS PRINTING OTHERWISE THAN FROM A FORME; CORRECTION OF TYPOGRAPHICAL ERRORS ## Abstract A liquid discharging apparatus includes a head that discharges a liquid onto a medium, a medium supporting portion that supports the medium, a heater that heats the medium supported by the medium supporting portion, and a detecting unit that performs sensing and detects energy. The radiation energy of the heater is controlled on the basis of the energy detected by the detecting unit. The medium supporting portion is provided with a sensing target portion that can be sensed by the detecting unit. ## Claims ### Claim 1 A liquid discharging apparatus comprising: a head that discharges a liquid onto a medium; a medium supporting portion that supports the medium; a heater that heats the medium supported by the medium supporting portion; a detecting unit that performs sensing and detects energy; and a control unit that controls radiation energy of the heater on the basis of the energy detected by the detecting unit, wherein the medium supporting portion is provided with a sensing target portion that is sensed by the detecting unit when the medium is not present, and wherein an emissivity of the sensing target portion is between 0.7 and 1. ### Claim 2 (depends on 1) The liquid discharging apparatus according to claim 1, wherein the detecting unit senses the sensing target portion or the medium supported by the medium supporting portion. ### Claim 3 (depends on 2) The liquid discharging apparatus according to claim 2, wherein a difference between the emissivity of the sensing target portion and the emissivity of the medium is 0.1 or less. ### Claim 4 (depends on 1) The liquid discharging apparatus according to claim 1, wherein the sensing target portion is formed from anodized aluminum. ### Claim 5 (depends on 1) The liquid discharging apparatus according to claim 1, wherein a heat capacity of the medium that is in a heating range of the heater and the heat capacity of the sensing target portion are substantially equal. ### Claim 6 (depends on 5) The liquid discharging apparatus according to claim 5, wherein the medium supporting portion is provided with a non-sensing target portion that is not sensed by the detecting unit, and wherein a gap is provided between the sensing target portion and the non-sensing target portion. ### Claim 7 (depends on 5) The liquid discharging apparatus according to claim 5, wherein the medium supporting portion is a thin plate, and wherein the liquid discharging apparatus further comprises a supporting portion that supports the thin plate such that a gap is provided between the thin plate and the supporting portion. ### Claim 8 (depends on 2) The liquid discharging apparatus according to claim 2, wherein a size of a sensing area that the detecting unit senses is variable, and wherein the size of the sensing area changes between when the detecting unit senses the sensing target portion and when the detecting unit senses the medium supported by the medium supporting portion. ### Claim 9 A liquid discharging apparatus comprising: a head that discharges a liquid onto a medium; a heater that heats the medium; a detecting unit that performs sensing and detects energy; a sensing target portion that is sensed by the detecting unit and that has an emissivity between 0.7 and 1; and a control unit that controls radiation energy of the heater on the basis of the energy detected by the detecting unit. ### Claim 10 (depends on 9) The liquid discharging apparatus according to claim 9, wherein the sensing target portion is disposed within a heating range of the heater. ### Claim 11 (depends on 9) The liquid discharging apparatus according to claim 9, wherein the detecting unit senses the sensing target portion or the detecting unit senses the medium. ### Claim 12 (depends on 9) The liquid discharging apparatus according to claim 9, further comprising a medium supporting portion that supports the medium. ### Claim 13 (depends on 12) The liquid discharging apparatus according to claim 12, wherein the detecting unit senses the medium supported by the medium supporting portion. ### Claim 14 (depends on 9) The liquid discharging apparatus according to claim 9, wherein a difference between the emissivity of the sensing target portion and the emissivity of the medium is 0.1 or less. ### Claim 15 (depends on 9) The liquid discharging apparatus according to claim 9, wherein the sensing target portion is formed from anodized aluminum. ### Claim 16 (depends on 9) The liquid discharging apparatus according to claim 9, wherein a heat capacity of the medium that is in a heating range of the heater and a heat capacity of the sensing target portion are substantially equal. ### Claim 17 (depends on 9) The liquid discharging apparatus according to claim 9, further comprising: a medium supporting portion that supports the medium, wherein the medium supporting portion includes a non-sensing target portion that is not sensed by the detecting unit, and wherein a gap is provided between the sensing target portion and the non-sensing target portion. ### Claim 18 (depends on 9) The liquid discharging apparatus according to claim 9, further comprising: a medium supporting portion that supports the medium, wherein the medium supporting portion is provided with a thin plate that supports the medium and a supporting portion that supports the thin plate such that gap is provided between the thin plate and the supporting portion. ### Claim 19 (depends on 11) The liquid discharging apparatus according to claim 11, wherein a size of a sensing area that the detecting unit senses is variable, and wherein the size of the sensing area changes between when the detecting unit senses the sensing target portion and when the detecting unit senses the medium. ### Claim 20 (depends on 12) The liquid discharging apparatus according to claim 12, wherein the medium supporting portion is provided with the sensing target portion.