JPS63197671A - Recorder - Google Patents
RecorderInfo
- Publication number
- JPS63197671A JPS63197671A JP3080687A JP3080687A JPS63197671A JP S63197671 A JPS63197671 A JP S63197671A JP 3080687 A JP3080687 A JP 3080687A JP 3080687 A JP3080687 A JP 3080687A JP S63197671 A JPS63197671 A JP S63197671A
- Authority
- JP
- Japan
- Prior art keywords
- recording
- electrode
- return circuit
- time
- recording electrode
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
- 230000000638 stimulation Effects 0.000 claims 1
- 230000006866 deterioration Effects 0.000 abstract description 3
- 239000000463 material Substances 0.000 abstract description 3
- 238000010276 construction Methods 0.000 abstract 2
- 238000000034 method Methods 0.000 description 5
- 238000010586 diagram Methods 0.000 description 3
- 230000007723 transport mechanism Effects 0.000 description 3
- 230000007774 longterm Effects 0.000 description 2
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 1
- 229910052799 carbon Inorganic materials 0.000 description 1
- 239000012141 concentrate Substances 0.000 description 1
- 239000004020 conductor Substances 0.000 description 1
- 230000006378 damage Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000002245 particle Substances 0.000 description 1
- 239000000049 pigment Substances 0.000 description 1
- 239000011347 resin Substances 0.000 description 1
- 229920005989 resin Polymers 0.000 description 1
- WFKWXMTUELFFGS-UHFFFAOYSA-N tungsten Chemical compound [W] WFKWXMTUELFFGS-UHFFFAOYSA-N 0.000 description 1
- 229910052721 tungsten Inorganic materials 0.000 description 1
- 239000010937 tungsten Substances 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
- B41J—TYPEWRITERS; SELECTIVE PRINTING MECHANISMS, i.e. MECHANISMS PRINTING OTHERWISE THAN FROM A FORME; CORRECTION OF TYPOGRAPHICAL ERRORS
- B41J2/00—Typewriters or selective printing mechanisms characterised by the printing or marking process for which they are designed
- B41J2/315—Typewriters or selective printing mechanisms characterised by the printing or marking process for which they are designed characterised by selective application of heat to a heat sensitive printing or impression-transfer material
- B41J2/32—Typewriters or selective printing mechanisms characterised by the printing or marking process for which they are designed characterised by selective application of heat to a heat sensitive printing or impression-transfer material using thermal heads
- B41J2/35—Typewriters or selective printing mechanisms characterised by the printing or marking process for which they are designed characterised by selective application of heat to a heat sensitive printing or impression-transfer material using thermal heads providing current or voltage to the thermal head
Landscapes
- Particle Formation And Scattering Control In Inkjet Printers (AREA)
- Electronic Switches (AREA)
Abstract
Description
従来の通電熱転写記録方式を用いた記録装置としては「
通電転写用記録材料」 (特開昭60−19585号)
があった。この従来例では第3図に示すように、インク
層と抵抗層を有する記録媒体と記録電極と帰路電極から
なり、前記記録電極と帰路電極間に電圧を印加し、記録
電極直下の抵抗層に電流を集中させ、その発熱によりイ
ンクを溶融させ紙にドツトを形成していた。また(文章
中には明示していないが)記録電極から帰路電極に電流
が流れ出す構成となっていた。As a recording device using the conventional electrical thermal transfer recording method,
"Recording material for electrical transfer" (Japanese Patent Application Laid-open No. 19585-1985)
was there. As shown in FIG. 3, this conventional example consists of a recording medium having an ink layer and a resistance layer, a recording electrode, and a return electrode.A voltage is applied between the recording electrode and the return electrode, and the resistance layer immediately below the recording electrode is The current was concentrated and the heat generated melted the ink, forming dots on the paper. Furthermore, although it is not explicitly stated in the text, the configuration was such that current flows from the recording electrode to the return electrode.
しかし前述の従来例では、記録時に記録電極と抵抗層が
相対的に移動しながら通電する為、その界面で放電が生
じ、記録電極が放電破壊により摩耗後退し前記抵抗層と
の電気的接触不良を起こし。
印字品質の劣化をきたすという問題があった。本発明は
上記のような問題を解決するもので、その目的とする所
は、前記記録′FL極の放電摩耗を低減−し、長期使用
時にも印字品質の劣化を起こさない、耐久性を有し、印
字品質の優れた通・電感熱型記録装置を供給することに
ある。
c問題点を解決するための手段J
本発明の記録装置は、通電時に前記記録電極が前記帰路
電極に対して低電位であることを特徴とする。
[実施例1
第1図に本発明による駆動方法を示す。80はフィルム
状記録媒体である。フィルム状記#*体は6μm厚のP
ETをベース層82とし、その1方の面にカーボン粒を
樹脂中に分散し4から5μm厚に塗布した抵抗層81を
、またもう1方の面には顔料をワックス中に分散し2か
ら3μm厚に塗布したインク層83が設けである。
10は記録電極、11は帰路電極である。本実施例では
共に材質はタングステンを用いたが硬質で機械的摺動摩
耗や、電気的放電摩耗に対して耐性のある導電材質が望
ましい。
Epは記録電源であり、20は前記記録電極10と記録
電源EpHJJの電流経路を断続する為のスイッチ手段
である。
帰路電極11はフレームグランドエ?、G、に接続され
ている。また記録ia[iloはスイッチ手段20を介
して記録電源Epの負極側に接続され、記録1!を源E
pの正極側は帰路[極と同じ(F、G。
に接続されている。
記録時には、スイッチ手段2oを閉じると、F。
G、ゆ帰路型aii11→抵抗暦81(矢印A)→記録
電極10→スイッチ手段2o→記録電源Epの負極側に
電流経路が形成される。この際記録電極lO直下の抵抗
層部(3部)に電流が集中し、ジュール熱が生じ、イン
ク#83の85部が溶融され被記録媒体72に転写され
る。
非記録時には、前記スイッチ手段2oが開かれ、上記電
流経路が遮断され記録は行なわれない。
本構成により印字耐久試験を行なった際の、記録走査距
離と記録電極の摩耗■(記録電極の摩耗した長さ)の相
関を第2図に示す。本試験では、記録電圧Epが15ボ
ルト、フィルム状記録媒体と記録ヘッドとの相対走査速
度は毎秒60’mmである。また記録電極に流れ込む電
流量は約20mAであった。第2図において曲*ioo
は従来の記録装置を用いた際、即ち記録電極が帰路電極
に対して高電位の場合の記録電極の摩耗量の変異を表わ
すものである。また曲#J1101は本発明による記録
装置を用いた際、即ち記録電極が帰路電極に対して低電
位の場合の記録電極の摩耗量の変異を表わすものである
。第2図に示す通り記録電極10の摩耗量は従来例に比
較して約3分の1に減少している。また両曲線共記録電
極の摩耗量の変化率が増大傾向にあるが、これは摩耗が
進行するに従い抵抗層と記録電極の接触性が次第に悪化
し放電回数が増加する為と思われる。しかし上記変化率
も本発明の場合は従来例に比べて極めて少ないことが第
2図の結果に示されている。
以上述べてきたように、本発明の構成により、記録電極
10の極性が帰路電極11に対して、負極、即ち帰路電
極11から記録電極10に電流が流、れ込む構成にする
と、記録電極から電流が流れ出す構成に比べて記録電極
の放電摩耗が極めて少なくなった。また本実施例の様に
、帰路電極11の電位をフレームグランドとすることに
より、フィルム状記録媒体の搬送経路において、いちい
ちフィルム状記録媒体の抵抗層と搬送a構を絶縁させる
必要が全くなくなり、前記搬送機構の設計が非常に容易
になった。
【発明の効果J
以上述べてきたように、本発明の構成に示す通り、通電
時に記録電極が帰路電極に対して低電位とすることによ
り、記録電極の放電摩耗が極めて少なくなった。したが
って長期の印字による印字品質の劣化の問題も解決され
、強いては印字品質が優れ耐久性を有した通電感熱型記
録装置を実現するのに効果がある。
また本実施例の様に、帰路電極の電位をフレームグラン
ドとすることにより、フィルム状記録媒体の搬送経路に
おいて、いちいちフィルム状記録媒体の抵抗層と搬送機
構を絶縁させる必要が全くなくなり、前記搬送機構の設
計が非常に容易になった。However, in the conventional example described above, during recording, electricity is applied while the recording electrode and the resistance layer move relative to each other, so discharge occurs at the interface, and the recording electrode is worn back due to discharge destruction, resulting in poor electrical contact with the resistance layer. Wake up. There was a problem in that printing quality deteriorated. The present invention is intended to solve the above-mentioned problems, and its purpose is to reduce the discharge wear of the recording FL pole, and to provide durability that does not cause deterioration of print quality even during long-term use. Our objective is to supply electrical/electrothermal recording devices with excellent printing quality. c Means for Solving the Problem J The recording device of the present invention is characterized in that the recording electrode has a lower potential than the return electrode when energized. [Example 1] Fig. 1 shows a driving method according to the present invention. 80 is a film-like recording medium. Film description#*The body is 6μm thick P
ET is used as a base layer 82, and on one side there is a resistance layer 81 in which carbon particles are dispersed in a resin and coated to a thickness of 4 to 5 μm, and on the other side there is a resistance layer 81 in which pigments are dispersed in wax and coated in a thickness of 4 to 5 μm. An ink layer 83 coated to a thickness of 3 μm is provided. 10 is a recording electrode, and 11 is a return electrode. In this embodiment, tungsten was used as the material, but it is desirable to use a conductive material that is hard and resistant to mechanical sliding wear and electrical discharge wear. Ep is a recording power source, and 20 is a switch means for connecting and disconnecting the current path between the recording electrode 10 and the recording power source EpHJJ. Is the return electrode 11 a frame ground electrode? ,G,. Further, the recording ia[ilo is connected to the negative electrode side of the recording power source Ep via the switch means 20, and the recording 1! Source E
The positive side of p is connected to the return path [same as the pole (F, G.). During recording, when the switch means 2o is closed, F. 10 → switch means 2o → a current path is formed on the negative electrode side of the recording power source Ep. At this time, the current concentrates on the resistance layer portion (3 parts) directly under the recording electrode IO, generating Joule heat, and the 85 of ink #83 part is melted and transferred to the recording medium 72. When not recording, the switch means 2o is opened, the current path is cut off, and no recording is performed. The correlation between the scanning distance and recording electrode wear (length of recording electrode worn) is shown in Figure 2. In this test, the recording voltage Ep was 15 volts, and the relative scanning speed between the film recording medium and the recording head was 60'mm per second.The amount of current flowing into the recording electrode was about 20mA.
represents the variation in the amount of wear of the recording electrode when a conventional recording device is used, that is, when the recording electrode is at a higher potential than the return electrode. Further, song #J1101 represents variations in the amount of wear of the recording electrode when the recording device according to the present invention is used, that is, when the recording electrode is at a lower potential than the return electrode. As shown in FIG. 2, the amount of wear on the recording electrode 10 is reduced to about one third compared to the conventional example. Furthermore, in both curves, the rate of change in the wear amount of the recording electrode tends to increase, but this seems to be because as the wear progresses, the contact between the resistance layer and the recording electrode gradually deteriorates and the number of discharges increases. However, the results shown in FIG. 2 show that the rate of change is also extremely small in the case of the present invention compared to the conventional example. As described above, according to the configuration of the present invention, if the polarity of the recording electrode 10 is negative with respect to the return electrode 11, that is, the current flows from the return electrode 11 to the recording electrode 10, Compared to a configuration in which current flows, discharge wear of the recording electrode is extremely reduced. Furthermore, as in this embodiment, by setting the potential of the return electrode 11 to the frame ground, there is no need to insulate the resistance layer of the film-like recording medium from the transport structure a in each transport path of the film-form recording medium. The design of the transport mechanism has become very easy. Effects of the Invention J As described above, as shown in the structure of the present invention, by setting the recording electrode at a low potential with respect to the return electrode during energization, discharge wear of the recording electrode is extremely reduced. Therefore, the problem of deterioration of print quality due to long-term printing is solved, and it is effective in realizing an electric heat-sensitive recording device with excellent print quality and durability. Furthermore, as in this embodiment, by setting the potential of the return electrode to the frame ground, there is no need to insulate the resistance layer of the film-like recording medium and the transport mechanism each time in the transport path of the film-form recording medium, and the transport Mechanism design has become much easier.
第1図は本発明による記録装置の駆動方法を示す図。
第2図は本発明による記録装置の記録電極の耐久試験の
結果を示す図。
第3図は従来の通電感熱型記録装置の駆動方法を示す図
。
10・・・・記録電極
11・・・・帰路電極
20・・・・スイッチ手段
72・・・・被記録媒体
80・・・・フィルム状記録媒体
81・・・・抵抗層
83・拳・・インク層
以 上
第1目
第2図
第3図FIG. 1 is a diagram showing a method for driving a recording apparatus according to the present invention. FIG. 2 is a diagram showing the results of a durability test of the recording electrode of the recording device according to the present invention. FIG. 3 is a diagram showing a method of driving a conventional electrically conductive heat-sensitive recording device. 10...Recording electrode 11...Return electrode 20...Switch means 72...Recording medium 80...Film-like recording medium 81...Resistance layer 83...Fist... Above the ink layer 1st item 2nd fig. 3
Claims (2)
録されうるインクの層と通電により発熱する抵抗層を有
するフィルム状記録媒体と前記抵抗層に接触し通電する
為の記録電極と帰路電極からなる記録ヘッドと前記記録
電極と帰路電極を前記抵抗層に接触走査させる為の機構
と前記記録電極と前記帰路電極間に選択的に電圧を印加
する為の制御手段を有する記録装置において、通電時に
前記記録電極が前記帰路電極に対して低電位であること
を特徴とする記録装置。(1) A film-like recording medium having an ink layer that can be activated by thermal stimulation and selectively recorded on the recording medium, a resistive layer that generates heat when energized, a recording electrode for contacting the resistive layer and energizing it, and a return path. A recording apparatus comprising a recording head comprising an electrode, a mechanism for causing the recording electrode and the return electrode to contact and scan the resistance layer, and a control means for selectively applying a voltage between the recording electrode and the return electrode, A recording device characterized in that the recording electrode has a lower potential than the return electrode when energized.
特許請求の範囲第1項記載の記録装置。(2) The recording device according to claim 1, wherein the return electrode is grounded.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP3080687A JPS63197671A (en) | 1987-02-13 | 1987-02-13 | Recorder |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP3080687A JPS63197671A (en) | 1987-02-13 | 1987-02-13 | Recorder |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS63197671A true JPS63197671A (en) | 1988-08-16 |
Family
ID=12313927
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP3080687A Pending JPS63197671A (en) | 1987-02-13 | 1987-02-13 | Recorder |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS63197671A (en) |
-
1987
- 1987-02-13 JP JP3080687A patent/JPS63197671A/en active Pending
Similar Documents
Publication | Publication Date | Title |
---|---|---|
JPH03254948A (en) | Thermal ink jet image forming apparatus | |
JPS63197671A (en) | Recorder | |
JPH0263063B2 (en) | ||
JPS6021293A (en) | Printing apparatus | |
JPS6244457A (en) | Recording apparatus | |
JPS62244649A (en) | Image forming method | |
JP2524104B2 (en) | Printing equipment | |
JPS61252167A (en) | Ordinary paper recorder | |
JPS6295258A (en) | Printing apparatus | |
JPH0562744B2 (en) | ||
JPS5849280A (en) | Thermal printer | |
JPS62290554A (en) | Character recording medium | |
JPS62264977A (en) | Image printer | |
JPS60199676A (en) | Printer | |
JPH02164556A (en) | Electrothermal transfer recording head | |
JPS6295261A (en) | Printing apparatus | |
JPS6453879A (en) | Electrothermal transfer printer | |
JPS6295260A (en) | Printing apparatus | |
JP2004098439A (en) | Electrothermal transfer printer | |
JPS61284462A (en) | Conduction heat generating recording apparatus | |
JPS61179767A (en) | Image recorder | |
JPS6347153A (en) | Printing recording head | |
JPS58157869A (en) | Ink medium for electric transfer | |
JPS6295259A (en) | Printing apparatus | |
JPS60171180A (en) | Printer |