JP2006347059A - Ink jet recorder - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide electrical components limiting the noise generated, the chassis composition and the composition of electrical components limiting the adhesion of ink mist of electrical components to the minimum without enlarging a recorder. <P>SOLUTION: A carriage motor 18, a conveyance motor 19 and a main control substrate 17 are arranged at one side of the recorder 10 while the main control substrate 17 being arranged with being inclined so that the substrate may approach the carriage motor 18 in following to the substrate going forward in the normal direction against the same direction of the carriage motor mounting surface of the chassis 14. Thereby, the noise generated is limited to the minimum. The adhesion of ink mist of electrical components is limited to the minimum by arranging, across a conveyance section 15 for conveying a recording medium, the carriage motor 18, the conveyance motor 19 and the main control substrate 17 at the opposite side of a maintenance section 16 for keeping a recording head 12 in the optimal state. <P>COPYRIGHT: (C)2007,JPO&INPIT

Description

  BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an ink jet recording apparatus, and particularly an ink jet for reducing electromagnetic noise and minimizing the adhesion of ink mist to electric parts by shortening an electric connection cable without enlarging the recording apparatus. The present invention relates to the configuration of a recording apparatus.

  A recording device equipped with an ink jet recording head has relatively low noise during recording and can form small dots at high density, so it is used for many types of recording including color recording. In order to enable finer color recording, the black ink recording head and the color ink recording head are detachably fixed to the carriage, or the black ink recording head and the color ink recording head are integrated. A recording head constituted by detachably fixed has been put into practical use.

In these recording apparatuses, a mechanism unit having a transport mechanism for transporting a recording head and a recording medium, a main control board for controlling the mechanism part, and a power supply circuit board for supplying power to the mechanism part and the main control board are provided. And a main control board and a power circuit board are arranged on both sides of the mechanism portion so as to be perpendicular to the bottom surface of the case.
Japanese Patent No. 3067908

  The above-described recording apparatus has only the relationship between the main control board and the power supply circuit board, and no particular mention is made regarding the motor which is another electrical component.

  In recent years, the performance of inkjet recording devices has greatly improved, the recording processing speed has become faster, and as a result, the time and cost required for noise countermeasures that have occurred are becoming incomparable compared to conventional methods, reducing costs, There is an urgent need for a configuration that is unlikely to generate noise.

  In addition, it is also necessary to reduce the adhesion of ink mist on electrical components due to the reduction in ink droplets and the increase in ink mist associated with borderless recording accompanying a marked improvement in recording quality.

  SUMMARY OF THE INVENTION An object of the present invention is to provide an ink jet recording apparatus having an electric component and chassis configuration for reducing generated noise without enlarging the recording device, and an electric component configuration for minimizing adhesion of ink mist on the electric component. There is to do.

  In order to solve the above-described problem, in claim 1 of the present invention, a chassis that slidably holds a carriage that holds a recording head, a carriage motor that is fixed to the chassis that drives the carriage, In order to perform recording on the recording medium based on a command from the main control board, a conveyance motor that drives a conveyance roller that conveys the recording medium, and a main control board that controls the carriage motor and the conveyance motor. The carriage motor, the transport motor, and the main control board are arranged on one side of the recording apparatus, and the main control board is on the carriage motor mounting surface side of the chassis and the carriage motor mounting surface of the chassis. A certain inclination to approach the carriage motor as it proceeds in the normal direction. Have been Placing to ensure electrical component mounting height of the main control board without increasing the size of the recording apparatus, the electrical components and the main control board of the electrical connection cable shortening of, reduces the noise generated.

  In claim 2, the transfer chassis for fixing the transfer motor and the board fixing chassis for fixing the main control board are electrically connected via the chassis so that the ground level between the chassis is the same, and as a result, Reduce generated noise.

  According to a third aspect of the present invention, the influence of the noise generated from the carriage motor on the main control board is reduced by arranging the board fixing chassis between the carriage motor and the main control board.

  According to a fourth aspect of the present invention, the influence of the noise generated from the carry motor on the main control board is reduced by arranging the board fixing chassis between the carry motor and the main control board.

  According to a fifth aspect of the present invention, the carriage motor, the conveyance motor, and the main control board are disposed on the opposite side of the maintenance unit for holding the recording head in an optimum state with the conveyance unit for conveying the recording medium interposed therebetween. Minimize the adhesion of ink mist on electrical parts.

  According to the present invention, there is provided an inkjet recording apparatus having an electrical component and a chassis configuration for reducing generated noise without increasing the inkjet recording device, and an electrical component configuration for minimizing adhesion of ink mist on the electrical component. Can be provided.

  Hereinafter, embodiments of the present invention will be described in detail with reference to the drawings.

  FIG. 1 is a plan view showing the configuration of the ink jet recording apparatus according to the first embodiment of the present invention.

  In FIG. 1, an ink jet recording apparatus 10 is connected to a host computer such as a personal computer (not shown) and functions as an external output device of a host computer that receives and records recording data from the host computer.

  11 includes a chassis 14 that slidably holds a carriage 13 that holds the recording head 12, a transport unit 15 that transports the recording medium, and a maintenance that includes a pump (not shown) that is an ink suction unit that keeps the recording head 12 in an optimum state. This is the base holding the part 16.

  Here, two recording heads 12 are fixed to the carriage 13. One is a color recording head and the other is a black recording head using pigment ink. One may be a color recording head and the other may be a photo recording head. The color recording head here uses cyan, magenta, and yellow as dye inks, and the photo recording head uses light cyan, light magenta, and black as dye inks.

  A maintenance unit 16 is disposed on the right side of the recording apparatus 10.

  A main control board 17 that controls the recording operation and a carriage motor 18 that drives the carriage 13 are disposed behind the left side of the recording apparatus 10.

  A main control board 17, a carriage motor 18, and a transport motor 19, which will be described later with reference to FIG. 2, are disposed on the opposite side of the maintenance unit 16 with the transport unit 15 interposed therebetween.

  For this reason, the arrangement is difficult to be affected by the ink mist generated in the maintenance unit 16 and the transport unit 15, and it is possible to minimize the adhesion of the ink mist of the electrical components. Thereby, the reliability of an electrical component improves more.

  The main control board 17 is on the attachment surface side of the chassis 14 where the carriage motor 18 is attached, and proceeds in the normal direction (rear side of the apparatus) with respect to the normal direction (arrow Y in FIG. 1) of the carriage motor attachment surface of the chassis 14. It arrange | positions so that the carriage motor 18 may be approached.

  As a result, the electrical component mounting height of the main control board 17 increases as the recording apparatus 10 proceeds to the back side, and it becomes possible to dispose a high part such as an electrolytic capacitor on the back side of the recording apparatus 10. Without increasing the size of the apparatus 10, it is possible to ensure the mounting height of the electric components of the main control board 17.

  FIG. 2 is a partial perspective view showing the arrangement of the electrical components as seen from the rear left side of the recording apparatus 10.

  Here, in order to make the arrangement of the electrical components easier to understand, the lower case 11 is eliminated from the configuration of FIG.

  A conveyance motor 19 that drives a conveyance roller 20 that conveys a recording medium via a belt 21 is fixed to a conveyance chassis 22.

  As shown in FIG. 2, the conveyance motor 19 is disposed below the carriage motor 18 and close to the main control board 17 without increasing the size of the recording apparatus 10.

  The transport chassis 22 is in contact with the side surface of the chassis 14 and is thereby electrically connected, so that the ground levels of the chassis 14 and the transport chassis 22 are substantially the same. Thereby, generated noise is reduced.

  A board fixing chassis 23 for fixing and holding the main control board 17 is disposed in parallel with the main control board 17 and between the carriage motor 18 and the transport motor 19 and the main control board 17. The influence of the noise generated from the motor 19 on the main control board 17 is reduced.

  The board fixing chassis 23 is in contact with the same plane as the carriage motor mounting face of the chassis 14 and is thereby electrically connected, so that the ground level of the chassis 14 and the board fixing chassis 23 is substantially the same. Thereby, generated noise is reduced.

  The main control board 17 has an ASIC (dedicated LSI) and an internal CPU, and various control processes, conversion from luminance signals (RGB) to density signals (CMYK), image processing such as scaling, gamma conversion, and error diffusion DSP (digital signal processor) that performs part or all of the above, a program memory that stores the CPU control program of the DSP, a RAM area that stores a program at the time of execution, a memory that functions as a work memory that stores image data, etc. A memory having an area and a printer engine for the inkjet recording apparatus 10 that records a color image using a plurality of inks are mounted.

  Accordingly, the main control board 17 is responsible for main electrical processing and control such as operation control of the ink jet recording apparatus 10 itself.

  As described above, the main control board 17 is disposed near the carriage motor 18 and the transport motor 19 and behind the recording device of the chassis 14, so that the main control board 17 and the carriage motor 18, the main control board 17, the transport motor 19, and the like. By shortening the length of the connection cable for connecting the two, it is possible to avoid mixing or generation of electric noise and to increase the operation speed of the recording apparatus.

The perspective view which shows the structure of the inkjet recording device by embodiment of this invention. Partial perspective view of the recording apparatus viewed from the rear left side

Explanation of symbols

DESCRIPTION OF SYMBOLS 10 Inkjet recording apparatus 11 Lower case, base 12 Recording head 13 Carriage 14 Chassis 15 Conveyance part 16 Maintenance part 17 Main control board 18 Carriage motor 19 Conveyance motor 20 Conveyance roller 21 Belt 22 Conveyance chassis 23 Substrate fixed chassis

Claims (5)

  A chassis that slidably holds a carriage that holds a recording head, a carriage motor that is fixed to the chassis that drives the carriage, a conveyance motor that drives a conveyance roller that conveys a recording medium, the carriage motor, A main control board for controlling a transport motor, and an ink jet recording apparatus for recording on the recording medium based on a command from the main control board, the carriage motor, the transport motor, and the main control The main control board is closer to the carriage motor mounting surface side of the chassis and closer to the carriage motor as it proceeds in the normal direction relative to the normal direction of the carriage motor mounting surface of the chassis. Ink cartridges that are arranged with a certain inclination Tsu door recording device.   The inkjet recording apparatus according to claim 1, wherein a conveyance chassis that fixes the conveyance motor and a substrate fixing chassis that fixes the main control substrate are electrically connected via the chassis.   The inkjet recording apparatus according to claim 2, wherein the substrate fixing chassis is disposed between the carriage motor and the main control substrate.   4. The ink jet recording apparatus according to claim 2, wherein the substrate fixing chassis is disposed between the transport motor and the main control substrate.   The carriage motor, the transport motor, and the main control board are disposed on the opposite side of the maintenance section for maintaining the recording head in an optimum state with a transport section for transporting the recording medium interposed therebetween. An ink jet recording apparatus according to any one of claims 1 to 4.

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