JP4426872B2 - Inkjet printer - Google Patents

Inkjet printer Download PDF

Info

Publication number
JP4426872B2
JP4426872B2 JP2004050986A JP2004050986A JP4426872B2 JP 4426872 B2 JP4426872 B2 JP 4426872B2 JP 2004050986 A JP2004050986 A JP 2004050986A JP 2004050986 A JP2004050986 A JP 2004050986A JP 4426872 B2 JP4426872 B2 JP 4426872B2
Authority
JP
Japan
Prior art keywords
voltage
printer
carriage
conversion unit
main body
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.)
Expired - Lifetime
Application number
JP2004050986A
Other languages
Japanese (ja)
Other versions
JP2005238612A (en
Inventor
正 高草
憲一 熊耳
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Oki Data Infotech Corp
Original Assignee
Oki Data Infotech Corp
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Oki Data Infotech Corp filed Critical Oki Data Infotech Corp
Priority to JP2004050986A priority Critical patent/JP4426872B2/en
Publication of JP2005238612A publication Critical patent/JP2005238612A/en
Application granted granted Critical
Publication of JP4426872B2 publication Critical patent/JP4426872B2/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Images

Landscapes

  • Ink Jet (AREA)

Description

本発明は、プリンタ等の印刷装置に関わり、特にインクジェットヘッドがキャリッジ上に搭載され、当該キャリッジに対してケーブルを介してプリンタ本体側から電源を供給する構成のインクジェットプリンタに関する。   The present invention relates to a printing apparatus such as a printer, and more particularly to an inkjet printer having an inkjet head mounted on a carriage and configured to supply power to the carriage from a printer main body side via a cable.

従来、インクジェットプリンタでは多色同時印刷のために複数個の印字ヘッドをキャリッジ上に搭載する場合があり、それらのヘッドに十分な容量の電源を供給できるメイン電源と、該メイン電源からの電圧を該複数個の印字ヘッドそれぞれに適当な電圧変換する電圧変換部がプリンタ本体側に設置され、該電圧変換部からの多数の電圧供給線でキャリッジ上の印字ヘッドと接続されていた（以下、これを従来技術１とする）。   Conventionally, in an inkjet printer, a plurality of print heads may be mounted on a carriage for simultaneous multi-color printing. A main power supply capable of supplying a sufficient capacity of power to these heads and a voltage from the main power supply are supplied. A voltage conversion unit that converts an appropriate voltage for each of the plurality of print heads is installed on the printer body side, and is connected to the print head on the carriage by a number of voltage supply lines from the voltage conversion unit (hereinafter referred to as this). Is the prior art 1).

また、電圧変換部を本体側ではなくキャリッジ上に配置しているものもある（例えば、特許文献１参照。）（これを、以下従来技術２とする）。   In some cases, the voltage conversion unit is arranged on the carriage instead of the main body side (see, for example, Patent Document 1) (hereinafter referred to as Prior Art 2).

図２、図３により従来のインクジェットプリンタについて説明する。図２は上述の従来技術１の構成例である。プリンタ本体１側にはメイン電源４が設置されており、該メイン電源４は複数の電圧変換部１２−１〜電圧変換部１２−６に接続されている。該電圧変換部１２−１〜電圧変換部１２−６の各出力はケーブル２を通してキャリッジ３上の印字ヘッド１０−１〜印字ヘッド１０−６に接続されている。該各印字ヘッド上にはヘッド温度検出素子が設置され、該各ヘッド温度検出素子からのヘッド温度信号はケーブル２を通して本体１側に設置されたＣＰＵ５へと接続されている。ヘッド温度信号に基づき、該ＣＰＵ５がヘッド電圧制御部１１を通して電圧変換部１２−１〜電圧変換部１２−１の出力電圧を制御している。   A conventional ink jet printer will be described with reference to FIGS. FIG. 2 is a configuration example of the above-described prior art 1. A main power supply 4 is installed on the printer body 1 side, and the main power supply 4 is connected to a plurality of voltage conversion units 12-1 to 12-6. Outputs of the voltage converter 12-1 to voltage converter 12-6 are connected to the print head 10-1 to print head 10-6 on the carriage 3 through the cable 2. A head temperature detection element is installed on each print head, and a head temperature signal from each head temperature detection element is connected to the CPU 5 installed on the main body 1 side through the cable 2. Based on the head temperature signal, the CPU 5 controls the output voltages of the voltage converters 12-1 to 12-1 through the head voltage controller 11.

図３は従来技術２の構成例である。本体１側にはメイン電源４が設置されており、該メイン電源４はケーブル２を通してキャリッジ３上の複数の電圧変換部１２−１〜電圧変換部１２−６に接続されている。該電圧変換部１２−１〜電圧変換部１２−６の各出力は、該キャリッジ３上の印字ヘッド１０−１〜印字ヘッド１０−６に接続されている。本体１側にはプリンタ全体を制御するマスターＣＰＵ１３が設置され、キャリッジ３側には該キャリッジ３上を制御するスレーブＣＰＵ１４が設置されていて、該マスターＣＰＵ１３と該スレーブＣＰＵ１４はケーブル２内を通る制御線を通して接続されている。印字ヘッド１０−１〜印字ヘッド１０−６上にはヘッド温度検出素子が設置され、該各ヘッド温度検出素子からのヘッド温度信号はスレーブＣＰＵ１４に接続されている。ヘッド温度信号に基づき、該スレーブＣＰＵ１４がヘッド電圧制御部１１を通して電圧変換部１２−１〜電圧変換部１２−６の出力電圧を制御している。
特開２００２−２６４３０８号公報（第８頁、図１） FIG. 3 shows a configuration example of the prior art 2. A main power supply 4 is installed on the main body 1 side, and the main power supply 4 is connected to a plurality of voltage conversion units 12-1 to 12-6 on the carriage 3 through a cable 2. The outputs of the voltage converter 12-1 to voltage converter 12-6 are connected to the print head 10-1 to the print head 10-6 on the carriage 3. A master CPU 13 that controls the entire printer is installed on the main body 1 side, and a slave CPU 14 that controls the carriage 3 is installed on the carriage 3 side. Connected through wires. Head temperature detection elements are installed on the print heads 10-1 to 10-6, and head temperature signals from the head temperature detection elements are connected to the slave CPU 14. Based on the head temperature signal, the slave CPU 14 controls the output voltage of the voltage converter 12-1 to voltage converter 12-6 through the head voltage controller 11.
JP 2002-264308 A (page 8, FIG. 1)

上述した従来技術１では、同時多色印字を実現するために印字ヘッドの数が増えるほどケーブル２を通る電圧変換部からの電圧供給線の数が多くなってしまう問題があった。その結果、該ケーブル２の重量が増し屈曲性も悪くなるため、キャリッジ移動用のモータ等の駆動系の負荷が大きくなり、該駆動系の構造も複雑になっていた。   In the prior art 1 described above, there is a problem that the number of voltage supply lines from the voltage converter passing through the cable 2 increases as the number of print heads increases in order to realize simultaneous multicolor printing. As a result, the weight of the cable 2 is increased and the flexibility is deteriorated, so that the load on the drive system such as a carriage moving motor is increased, and the structure of the drive system is complicated.

また、図２でケーブル２の長さはキャリッジ３の移動範囲に応じて決まるが、大きな画像を印字するプリンタではケーブル２が長くなり、その中を通る電圧変換部と印字ヘッドの間の電圧供給線も長くなるため電気抵抗も大きくなり、電圧変換部と印字ヘッドの間での電圧降下が大きくなり、所定の電圧を印字ヘッドに印加することができなくなっていた。   In FIG. 2, the length of the cable 2 is determined according to the moving range of the carriage 3. However, in a printer that prints a large image, the cable 2 becomes long, and the voltage supply between the voltage conversion unit and the print head that passes through the cable 2 is long. Since the line becomes longer, the electrical resistance also increases, and the voltage drop between the voltage converter and the print head increases, making it impossible to apply a predetermined voltage to the print head.

また、従来技術２では、本体１とキャリッジ３を接続するケーブル内を通る電圧供給線の本数は少なくなるが、電圧変換部にスイッチング式の回路を使用するような場合には回路規模が大きくなり、キャリッジ３の重量も大きくなり、キャリッジ移動用のモータ等の駆動系の負荷が大きくなり、該駆動系の構造も複雑になっていた。   In the prior art 2, the number of voltage supply lines passing through the cable connecting the main body 1 and the carriage 3 is reduced. However, when a switching circuit is used for the voltage conversion unit, the circuit scale increases. Further, the weight of the carriage 3 is increased, the load of a drive system such as a carriage moving motor is increased, and the structure of the drive system is complicated.

本発明でのインクジェットプリンタでは、メイン電源が設置されたプリンタ本体と、１個ないし複数個のインクジェットヘッドを搭載し、記録用紙に対して往復移動を行うように構成されたキャリッジと、前記メイン電源と前記インクジェットヘッドとを電気的に接続するケーブルと、を有するインクジェットプリンタにおいて、前記メイン電源が供給する電圧から前記インクジェットヘッド毎に応じたヘッド駆動電圧を生成する電圧変換部を、前記プリンタ本体側と前記キャリッジに側に有し、前記メイン電源と、前記プリンタ本体側電圧変換部と、前記キャリッジ側電圧変換部と、前記印字ヘッドとがケーブルにて直列に接続されて配置されていることを特徴とする。   In the ink jet printer according to the present invention, a printer main body in which a main power source is installed, a carriage mounted with one or a plurality of ink jet heads and configured to reciprocate with respect to recording paper, and the main power source And a cable that electrically connects the inkjet head, and a voltage conversion unit that generates a head drive voltage corresponding to each inkjet head from a voltage supplied by the main power supply, The main power source, the printer main body side voltage converter, the carriage side voltage converter, and the print head are connected in series with a cable. Features.

さらに本発明では、前記メイン電源に近い側の前記プリンタ本体側電圧変換部の出力電圧設定値が前記印字ヘッドに近い側の前記キャリッジ側電圧変換部の出力電圧設定値より高く設定されていることを特徴とする。   Further, in the present invention, the output voltage setting value of the printer main body side voltage conversion unit on the side close to the main power supply is set higher than the output voltage setting value of the carriage side voltage conversion unit on the side close to the print head. It is characterized by.

さらに本発明では、前記メイン電源に近い側の前記プリンタ本体側電圧変換部の個数が前記印字ヘッドに近い側の前記キャリッジ側電圧変換部の個数より少ないことを特徴とする。   Further, the present invention is characterized in that the number of the printer main body side voltage converters on the side close to the main power source is smaller than the number of the carriage side voltage converters on the side close to the print head.

さらに本発明では、前記プリンタ本体側電圧変換部と前記キャリッジ側電圧変換部の間に、更に１段ないし複数段の電圧変換部を有することを特徴とする。   Furthermore, the present invention is characterized in that a further one or more stages of voltage converters are provided between the printer main body side voltage converter and the carriage side voltage converter.

本発明により、プリンタ本体とキャリッジ間の電圧供給線の本数の減少とキャリッジ回路部の軽量化を図りながら、所定のヘッド駆動電圧を各印字ヘッドに供給することが可能となる。   According to the present invention, it is possible to supply a predetermined head drive voltage to each print head while reducing the number of voltage supply lines between the printer main body and the carriage and reducing the weight of the carriage circuit section.

キャリッジ回路部の軽量化と、プリンタ本体とキャリッジ間の電圧供給線の本数の減少による重量減により、キャリッジ往復移動の駆動機構を簡素化することができる。   By reducing the weight of the carriage circuit unit and reducing the weight due to the reduction in the number of voltage supply lines between the printer body and the carriage, the drive mechanism for reciprocating the carriage can be simplified.

所定のヘッド駆動電圧を印字ヘッドに供給可能なことにより、印字画質を向上することができる。   Since a predetermined head driving voltage can be supplied to the print head, the print image quality can be improved.

プリンタ本体の筐体が大きく、メイン電源とキャリッジ間のケーブル内の電圧供給線が長くなる場合に、全線長をいくつかに分割し、その途中に電圧変換部を挿入して、電圧変化部を多段化することで印字ヘッドに供給される電圧を安定させることができる。   If the main body of the printer is large and the voltage supply line in the cable between the main power supply and the carriage becomes long, divide the total line length into several parts, insert a voltage conversion part in the middle, and The voltage supplied to the print head can be stabilized by increasing the number of stages.

以下、本発明を実施するための最良の形態を図１を参照して説明する。図１は本発明に係るインクジェットプリンタの基本的な構成を示す。   Hereinafter, the best mode for carrying out the present invention will be described with reference to FIG. FIG. 1 shows a basic configuration of an ink jet printer according to the present invention.

尚、図１では本発明の実施形態の特徴部分とは直接関係のない、用紙搬送系やキャリッジ駆動系やヘッドへのインク供給系、ＣＰＵに付随するメモリ類やホストとの外部インターフェース等については図示及び説明を省略する。   In FIG. 1, the paper conveyance system, carriage drive system, ink supply system to the head, memory associated with the CPU, external interface with the host, etc., which are not directly related to the characteristic portions of the embodiment of the present invention, are shown. Illustration and description are omitted.

図１のインクジェットプリンタにおいて、プリンタ本体１とキャリッジ３はケーブル２によって電気的に接続されている。プリンタ本体１にはメイン電源４と、該メイン電源４からの電圧を変換する電圧変換部Ａ８−１〜電圧変換部Ａ８−３と、該電圧変換部Ａ８−１〜電圧変換部Ａ８−３の出力電圧を制御するヘッド電圧制御部Ａ６と、プリンタ全体を制御するＣＰＵ５が配置されている。ここで、電圧変換部Ａ８−１〜電圧変換部Ａ８−３はスイッチング方式等のようにある程度回路構成が複雑でも電圧変換効率の良い変換方式が適している。   In the ink jet printer of FIG. 1, the printer body 1 and the carriage 3 are electrically connected by a cable 2. The printer main body 1 includes a main power supply 4, a voltage conversion unit A8-1 to voltage conversion unit A8-3 for converting a voltage from the main power supply 4, and a voltage conversion unit A8-1 to voltage conversion unit A8-3. A head voltage controller A6 that controls the output voltage and a CPU 5 that controls the entire printer are arranged. Here, the voltage conversion unit A8-1 to voltage conversion unit A8-3 is suitable for a conversion method with good voltage conversion efficiency even if the circuit configuration is complicated to some extent, such as a switching method.

一方、キャリッジ３には多色印字を行う印字ヘッド１０−１〜印字ヘッド１０−６と、電圧変換部Ａ８−１〜電圧変換部Ａ８−３の出力電圧を印字ヘッド１０−１〜印字ヘッド１０−６へ供給するヘッド駆動電圧に変換する電圧変換部Ｂ９−１〜電圧変換部Ｂ９−６と、該電圧変換部Ｂ９−１〜電圧変換部Ｂ９−６の出力電圧を制御するヘッド電圧制御部Ｂ７が配置され、該ヘッド電圧制御部Ｂ７はプリンタ本体１側のＣＰＵ５からケーブル２を通して制御されている。また、印字ヘッド１０−１〜印字ヘッド１０−６にはヘッド温度センサが設置され、該ヘッド温度センサからのヘッド温度信号はケーブル２を通してＣＰＵ５へ接続されている。ここで、電圧変換部Ｂ９−１〜電圧変換部Ｂ９−６はドロッパ方式等のように比較的小規模な回路で構成できる変換方式が適している。   On the other hand, the carriage 3 receives the output voltages of the print head 10-1 to the print head 10-6 for performing multicolor printing and the voltage conversion unit A8-1 to voltage conversion unit A8-3. Voltage conversion unit B9-1 to voltage conversion unit B9-6 that converts the head drive voltage to be supplied to -6, and a head voltage control unit that controls the output voltage of the voltage conversion unit B9-1 to voltage conversion unit B9-6 B7 is arranged, and the head voltage controller B7 is controlled through the cable 2 from the CPU 5 on the printer body 1 side. The print head 10-1 to the print head 10-6 are provided with a head temperature sensor, and a head temperature signal from the head temperature sensor is connected to the CPU 5 through the cable 2. Here, the voltage conversion unit B9-1 to voltage conversion unit B9-6 is suitably a conversion method that can be configured with a relatively small circuit such as a dropper method.

図１ではケーブル２内の電圧供給線の本数を減らすために、電圧変換部Ａ８−１の出力電圧を電圧変換部Ｂ９−１〜電圧変換部Ｂ９−２へ供給し、電圧変換部Ａ８−２の出力電圧を電圧変換部Ｂ９−３〜電圧変換部Ｂ９−４へ供給し、電圧変換部Ａ８−３の出力電圧を電圧変換部Ｂ９−５〜電圧変換部Ｂ９−６へ供給している。   In FIG. 1, in order to reduce the number of voltage supply lines in the cable 2, the output voltage of the voltage converter A8-1 is supplied to the voltage converter B9-1 to voltage converter B9-2, and the voltage converter A8-2 is supplied. Are supplied to the voltage converter B9-3 to the voltage converter B9-4, and the output voltage of the voltage converter A8-3 is supplied to the voltage converter B9-5 to the voltage converter B9-6.

以下、このような構成による作用を述べる。   Hereinafter, the operation of such a configuration will be described.

各印字ヘッド１０−１〜印字ヘッド１０−６のヘッド温度センサからのヘッド温度信号の値によってＣＰＵ５が各印字ヘッド１０−１〜印字ヘッド１０−６の最適な駆動電圧値を求め、ヘッド電圧制御部Ｂ７を通して電圧変換部Ｂ９−１〜電圧変換部Ｂ９−６の出力電圧を設定する。   The CPU 5 obtains the optimum drive voltage value for each of the print heads 10-1 to 10-6 based on the value of the head temperature signal from the head temperature sensor of each of the print heads 10-1 to 10-6, and controls the head voltage. The output voltage of voltage converter B9-1 to voltage converter B9-6 is set through part B7.

次にメイン電源４からの電圧を変換する電圧変換部Ａ８−１〜電圧変換部Ａ８−３の出力電圧を、ＣＰＵ５からヘッド電圧電圧制御部Ａ６を通して設定する。ここで電圧変換部Ｂ９−１〜電圧変換部Ｂ９−６がドロッパ方式の電圧変換回路であるとすると、該電圧変換部Ｂ９−１〜電圧変換部Ｂ９−６の入力電圧と出力電圧の差が熱として消費されるのでその差ができるだけ小さくなるように該入力電圧を設定することが望ましい。但し、特に大きな画像を印字するプリンタの場合、キャリッジの移動範囲が大きく、従ってケーブル２も長くなり、ケーブル２を通る電圧変換部Ａ８−１〜電圧変換部Ａ８−３と電圧変換部Ｂ９−１〜電圧変換部Ｂ９−６の間の電圧供給線の電圧降下が顕著になるため、その電圧降下を相殺するだけの一定電圧Vcを印字ヘッドへの供給電圧に加えた値を電圧変換部Ａ８−１〜電圧変換部Ａ８−３の出力電圧に設定する必要がある。
例えば、図１では電圧変換部Ａ８−１の出力が電圧変換部Ｂ９−１及び電圧変換部Ｂ９−２に接続されて、さらに印字ヘッド１０−１及び印字ヘッド１０−２へとヘッド駆動電圧が供給されている。この場合、電圧変換部Ａ８−１の出力電圧に設定すべき値Va1は、電圧変換部Ｂ９−１の出力電圧（印字ヘッド１０−１駆動電圧）設定値をVb1、電圧変換部Ｂ９−２の出力電圧（印字ヘッド１０−２駆動電圧）設定値をVb2とし、Vb1とVb2のうちの大きい方の値をMax(Vb1, Vb2)とすると、
Va1 = Max(Vb1, Vb2) + Vc
となる。電圧変換部Ａ８−２及び８−３の出力電圧の設定値も同様にVcを上乗せした値にする。 Next, the output voltage of the voltage conversion unit A8-1 to voltage conversion unit A8-3 for converting the voltage from the main power supply 4 is set from the CPU 5 through the head voltage voltage control unit A6. If the voltage converter B9-1 to voltage converter B9-6 are dropper type voltage converters, the difference between the input voltage and the output voltage of the voltage converter B9-1 to voltage converter B9-6 is as follows. Since it is consumed as heat, it is desirable to set the input voltage so that the difference becomes as small as possible. However, in the case of a printer that prints a particularly large image, the moving range of the carriage is large, so that the cable 2 is also long, and the voltage conversion unit A8-1 to voltage conversion unit A8-3 and voltage conversion unit B9-1 that pass through the cable 2. Since the voltage drop of the voltage supply line between the voltage converters B9-6 becomes significant, a value obtained by adding a constant voltage Vc sufficient to cancel the voltage drop to the supply voltage to the print head is used as the voltage converter A8- 1 to the output voltage of the voltage converter A8-3 needs to be set.
For example, in FIG. 1, the output of the voltage conversion unit A8-1 is connected to the voltage conversion unit B9-1 and the voltage conversion unit B9-2, and further the head drive voltage is applied to the print head 10-1 and the print head 10-2. Have been supplied. In this case, the value Va1 to be set to the output voltage of the voltage converter A8-1 is the output voltage (printing head 10-1 drive voltage) set value of the voltage converter B9-1, Vb1, and the voltage converter B9-2 is set. If the output voltage (printing head 10-2 drive voltage) set value is Vb2, and the larger of Vb1 and Vb2 is Max (Vb1, Vb2),
Va1 = Max (Vb1, Vb2) + Vc
It becomes. Similarly, the set value of the output voltage of the voltage converters A8-2 and 8-3 is set to a value obtained by adding Vc.

電圧変換部Ｂ９−１〜電圧変換部Ｂ９−６の出力電圧の設定値間の差が小さく、電圧変換部Ａの出力の電流容量が十分あれば、電圧変換部Ａ８−１〜電圧変換部Ａ８−３を２個あるいは１個にまとめて、ケーブル２を通って電圧変換部Ｂ９−１〜電圧変換部Ｂ９−６へ供給される電圧供給線の本数を減らすこともできる。逆に電圧変換部Ｂ９−１〜電圧変換部Ｂ９−６の出力電圧の設定値間の差が大きい場合は電圧変換部Ａの個数を最大で電圧変換部Ｂの個数まで増やし、各電圧変換部Ｂに最適な入力電圧を設定することで、電圧変換部Ｂで発生する熱を抑えることができる。   If the difference between the output voltage setting values of the voltage converter B9-1 to voltage converter B9-6 is small and the current capacity of the output of the voltage converter A is sufficient, the voltage converter A8-1 to voltage converter A8. -3 can be combined into two or one, and the number of voltage supply lines supplied to the voltage converter B9-1 to voltage converter B9-6 through the cable 2 can be reduced. Conversely, when the difference between the set values of the output voltages of the voltage converters B9-1 to B9-6 is large, the number of voltage converters A is increased up to the number of voltage converters B, and each voltage converter By setting an optimum input voltage for B, heat generated in the voltage conversion unit B can be suppressed.

図１ではプリンタ本体１に電圧変換部Ａ８−１〜電圧変換部Ａ８−３と、キャリッジ３に電圧変換部Ｂ９−１〜電圧変換部Ｂ９−６を設置している場合を示しているが、印字する画像がさらに大きくなり、キャリッジ３の移動範囲が大きくなり、ケーブル２がさらに長くなってケーブル２内の電圧供給線の電圧降下の変動が大きくなるような場合には、電圧変換部Ａと電圧変換部Ｂの間にさらに１つあるいは複数段の新たな電圧変換部を設けることにより、電圧変換部Ｂの入力での電圧変動を小さくし、電圧変換部Ｂの発熱を抑えることができる。   Although FIG. 1 shows the case where the printer body 1 is provided with the voltage converters A8-1 to A8-3 and the carriage 3 is provided with the voltage converters B9-1 to B9-6. When the image to be printed becomes larger, the moving range of the carriage 3 becomes larger, the cable 2 becomes longer, and the fluctuation of the voltage drop of the voltage supply line in the cable 2 becomes larger, the voltage conversion unit A and By providing one or more new voltage conversion units between the voltage conversion units B, voltage fluctuations at the input of the voltage conversion unit B can be reduced and heat generation of the voltage conversion unit B can be suppressed.

以上、本発明の実施形態について説明したが、本発明はこれに限定されることなく、その趣旨を逸脱しない範囲で種々の改良、変更が可能である。例えば、単色ヘッドのプリンタや更に多数のヘッドをキャリッジに搭載したプリンタにも適用可能である。   As mentioned above, although embodiment of this invention was described, this invention is not limited to this, A various improvement and change are possible in the range which does not deviate from the meaning. For example, the present invention can be applied to a printer having a single color head and a printer having a larger number of heads mounted on the carriage.

本発明の実施形態を示す構成図である。It is a block diagram which shows embodiment of this invention. プリンタ本体側に電圧変換部を設置した従来技術の構成図である。It is a block diagram of the prior art which installed the voltage conversion part in the printer main body side. キャリッジ側に電圧変換部を設置した従来技術の構成図である。It is a block diagram of the prior art which installed the voltage conversion part in the carriage side.

符号の説明Explanation of symbols

１ プリンタ本体
２ ケーブル
３ キャリッジ
４ メイン電源
５ ＣＰＵ
６ ヘッド電圧制御部Ａ
７ ヘッド電圧制御部Ｂ
８ 電圧変換部Ａ
９ 電圧変換部Ｂ
１０ 印字ヘッド
１１ ヘッド電圧制御部
１２ 電圧変換部
１３ マスターＣＰＵ
１４ スレーブＣＰＵ 1 Printer body 2 Cable 3 Carriage 4 Main power supply 5 CPU
6 Head voltage controller A
7 Head voltage controller B
8 Voltage converter A
9 Voltage converter B
DESCRIPTION OF SYMBOLS 10 Print head 11 Head voltage control part 12 Voltage conversion part 13 Master CPU
14 Slave CPU

Claims (4)

メイン電源が設置されたプリンタ本体と、１個ないし複数個のインクジェットヘッドを搭載し、記録用紙に対して往復移動を行うように構成されたキャリッジと、前記メイン電源と前記インクジェットヘッドとを電気的に接続するケーブルと、を有するインクジェットプリンタにおいて、
前記メイン電源が供給する電圧から前記インクジェットヘッド毎に応じたヘッド駆動電圧に電圧変換する電圧変換部を、前記プリンタ本体側と、前記キャリッジ側に有し、
前記メイン電源と、前記プリンタ本体側に有する電圧変換部としてのプリンタ本体側電圧変換部と、前記キャリッジ側に有する電圧変換部としてのキャリッジ側電圧変換部と、前記印字ヘッドとがケーブルにて直列に接続されて配置されていることを特徴とするインクジェットプリンタ。 A printer main body in which a main power source is installed, one or a plurality of ink jet heads mounted thereon, a carriage configured to reciprocate with respect to recording paper, and the main power source and the ink jet heads are electrically connected. In an inkjet printer having a cable connected to
A voltage conversion unit for converting the voltage supplied from the main power source into a head drive voltage corresponding to each inkjet head, on the printer main body side and the carriage side;
The main power supply, a printer main body side voltage conversion unit as a voltage conversion unit on the printer main body side, a carriage side voltage conversion unit as a voltage conversion unit on the carriage side, and the print head are connected in series by a cable. An inkjet printer characterized by being connected to the printer. 請求項１において、前記プリンタ本体側電圧変換部の出力電圧設定値が前記キャリッジ側電圧変換部の出力電圧設定値より高いことを特徴とするインクジェットプリンタ。 2. The ink jet printer according to claim 1, wherein an output voltage set value of the printer main body side voltage converter is higher than an output voltage set value of the carriage side voltage converter. 請求項１において、前記プリンタ本体側電圧変換部の個数が前記キャリッジ側電圧変換部の個数より少ないことを特徴とするインクジェットプリンタ。 2. The ink jet printer according to claim 1, wherein the number of the printer main body side voltage converters is smaller than the number of the carriage side voltage converters. 請求項１において、前記プリンタ本体側電圧変換部と前記キャリッジ側電圧変換部の間に、更に１段ないし複数段の電圧変換部を有することを特徴とするインクジェットプリンタ。 2. The ink jet printer according to claim 1, further comprising one or more stages of voltage converters between the printer main body side voltage converter and the carriage side voltage converter.
JP2004050986A 2004-02-26 2004-02-26 Inkjet printer Expired - Lifetime JP4426872B2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP2004050986A JP4426872B2 (en) 2004-02-26 2004-02-26 Inkjet printer

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP2004050986A JP4426872B2 (en) 2004-02-26 2004-02-26 Inkjet printer

Publications (2)

Publication Number Publication Date
JP2005238612A JP2005238612A (en) 2005-09-08
JP4426872B2 true JP4426872B2 (en) 2010-03-03

Family

ID=35020869

Family Applications (1)

Application Number Title Priority Date Filing Date
JP2004050986A Expired - Lifetime JP4426872B2 (en) 2004-02-26 2004-02-26 Inkjet printer

Country Status (1)

Country Link
JP (1) JP4426872B2 (en)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP5824980B2 (en) * 2011-08-31 2015-12-02 ブラザー工業株式会社 Power supply device for liquid discharge head, liquid discharge device, and program
JP5861328B2 (en) * 2011-08-31 2016-02-16 ブラザー工業株式会社 Liquid ejection apparatus and program
JP5987614B2 (en) * 2012-09-28 2016-09-07 ブラザー工業株式会社 Liquid ejection device, control method of liquid ejection device, and control program

Also Published As

Publication number Publication date
JP2005238612A (en) 2005-09-08

Similar Documents

Publication Publication Date Title
US8002374B2 (en) Printhead driving method, printhead substrate, printhead, head cartridge, and printing apparatus
US8626623B2 (en) Image processing apparatus, image processing method, and recording medium
US10661559B2 (en) Liquid discharge apparatus
US7896469B2 (en) Head substrate, printhead, head cartridge, and printing apparatus
JP6648517B2 (en) Liquid ejection device, head unit provided in liquid ejection device, and method of controlling liquid ejection device
JP5032964B2 (en) Head substrate, recording head, head cartridge, and recording apparatus
JP7208706B2 (en) PRINTING DEVICE AND POWER SUPPLY UNIT FOR PRINTING DEVICE
US7918538B2 (en) Printhead formed of element substrates having function circuits
US10265955B2 (en) Liquid discharge apparatus
JP4426872B2 (en) Inkjet printer
CN109572215B (en) Liquid ejecting apparatus and drive circuit provided in liquid ejecting apparatus
JP6087632B2 (en) Power supply device and recording device
US9073310B2 (en) Printhead substrate, printhead, and printing apparatus
US20230311486A1 (en) Flexible electric wiring board and print head
JP3439445B2 (en) Thermal head temperature measuring voltage detecting circuit and printer having thermal head temperature measuring voltage detecting circuit
US8757759B2 (en) Temperature detecting apparatus
JP2008087453A (en) Thermal printer, and related method
US10864725B2 (en) Element substrate, printhead and printing apparatus
US20230311495A1 (en) Inkjet printing apparatus, control method, and storage medium
US10525704B2 (en) Liquid ejecting apparatus
JP2023173084A (en) Printing device and printing system
US7452050B2 (en) Head substrate, printhead, head cartridge, and printing apparatus using the printhead or head cartridge
JP2006159573A (en) Recorder and power supply method to recording head
CN114083900A (en) Printing element substrate, printhead, and printing apparatus
JP2001205803A (en) Temperature detection for recording head by driving current of driving element

Legal Events

Date Code Title Description
A621 Written request for application examination

Free format text: JAPANESE INTERMEDIATE CODE: A621

Effective date: 20061011

A711 Notification of change in applicant

Free format text: JAPANESE INTERMEDIATE CODE: A711

Effective date: 20070601

RD01 Notification of change of attorney

Free format text: JAPANESE INTERMEDIATE CODE: A7421

Effective date: 20091105

RD01 Notification of change of attorney

Free format text: JAPANESE INTERMEDIATE CODE: A7421

Effective date: 20091113

RD01 Notification of change of attorney

Free format text: JAPANESE INTERMEDIATE CODE: A7421

Effective date: 20091118

A977 Report on retrieval

Free format text: JAPANESE INTERMEDIATE CODE: A971007

Effective date: 20091126

TRDD Decision of grant or rejection written
A01 Written decision to grant a patent or to grant a registration (utility model)

Free format text: JAPANESE INTERMEDIATE CODE: A01

Effective date: 20091208

A01 Written decision to grant a patent or to grant a registration (utility model)

Free format text: JAPANESE INTERMEDIATE CODE: A01

A61 First payment of annual fees (during grant procedure)

Free format text: JAPANESE INTERMEDIATE CODE: A61

Effective date: 20091211

R150 Certificate of patent or registration of utility model

Ref document number: 4426872

Country of ref document: JP

Free format text: JAPANESE INTERMEDIATE CODE: R150

Free format text: JAPANESE INTERMEDIATE CODE: R150

FPAY Renewal fee payment (event date is renewal date of database)

Free format text: PAYMENT UNTIL: 20121218

Year of fee payment: 3

FPAY Renewal fee payment (event date is renewal date of database)

Free format text: PAYMENT UNTIL: 20131218

Year of fee payment: 4

RD04 Notification of resignation of power of attorney

Free format text: JAPANESE INTERMEDIATE CODE: R3D04

R250 Receipt of annual fees

Free format text: JAPANESE INTERMEDIATE CODE: R250

R250 Receipt of annual fees

Free format text: JAPANESE INTERMEDIATE CODE: R250

R250 Receipt of annual fees

Free format text: JAPANESE INTERMEDIATE CODE: R250

S111 Request for change of ownership or part of ownership

Free format text: JAPANESE INTERMEDIATE CODE: R313111

R350 Written notification of registration of transfer

Free format text: JAPANESE INTERMEDIATE CODE: R350

S111 Request for change of ownership or part of ownership

Free format text: JAPANESE INTERMEDIATE CODE: R313111

R350 Written notification of registration of transfer

Free format text: JAPANESE INTERMEDIATE CODE: R350