JPH106490A - Ink jet input and output device - Google Patents

Abstract

PROBLEM TO BE SOLVED: To preclude ink from getting over the writing face of a writing head, and also ink from adhering to the ink spouting face of a recording head by setting selectively a head face protection member on the ink spouting face of the recording head, or the reading face of an original reading head. SOLUTION: During recording, a reading head 25 moves to a position opposed to a head protection member 25, and a protection member support body 22 moves upward, so that a head protection member 23 is press-mounted on the reading face of the original reading head 25. After dismounting the head protection member 23 from the reading head 25 so as to be moved onto the protection member support body 22, the protection support body 23 moves downward. Following this, a carrier 2 travels such that the ink supporting face of a recording head comes to a position opposed to the head protection member 23 on the support body 22 moves upward, then the head protection member 23 is dismounted from the protection member support body 22 to thus be put on the ink spouting face of the reading head 1.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an ink-jet input / output apparatus for performing recording on a recording medium by a recording head for discharging ink and reading an original by a reading head. The present invention relates to a protection member that protects a reading surface of a head and protects an ink ejection port surface of a recording head during a reading operation.

[0002]

2. Description of the Related Art A recording head of an ink jet recording system, which performs recording by discharging ink from a recording head to a recording medium, is equipped with a reading head including an illumination, an optical system, a reading sensor, etc., and is capable of recording and reading. Various inkjet input / output devices have been devised. However, during the printing operation, a part of the ink ejected from the printing head becomes mist of fine particles, floats in the printing apparatus, adheres to the reading surface of the reading head, and sometimes deteriorates the reading performance. . Further, during the reading operation, the ink on the ink ejection surface of the recording head may be dried and fixed due to the heat generated by the illumination system of the reading head.

[0003]

SUMMARY OF THE INVENTION An object of the present invention is to provide a new ink jet input / output device which solves the above-mentioned problems of the prior art.

[0004]

The above object is achieved by the following means.

That is, according to the present invention, there is provided a recording head for ejecting ink to a recording medium for recording, a reading head for reading a read original, and an ink ejection port surface of the recording head or a reading surface of the reading head. An ink jet input / output device, comprising: a head surface protection member to be mounted on the head; and the head surface protection member has a first head contact surface and a second head contact surface. The first head contact surface and the second head contact surface have different heights.

[0006]

BEST MODE FOR CARRYING OUT THE INVENTION

(Embodiment) Hereinafter, an embodiment of the present invention will be specifically described with reference to FIGS.

Embodiment 1 FIG. 1 is an overall perspective view of an input / output device according to an embodiment of the present invention.

FIG. 2 is a partial sectional view at the time of a reading operation.

Reference numeral 1 denotes a printing head having a printing element array in which a plurality of printing elements are arranged in a single row, and has a built-in printing ink. The recording head 1 is arranged on a carrier 2 and is electrically connected to a recording device control unit (not shown) via an electric joint 3. Carrier 2 is chassis 4
The guide rail 5 is supported by a guide shaft 5 provided on the upper side.
And is slidably mounted on the drive motor 8 and is drivingly connected to a drive motor 8 via a belt 7.

The chassis 4 is provided with an upper guide 10 and a lower guide 11 for guiding the recording medium 9 before recording. The upper guide 10 is provided with a paper sensor 12 for detecting the presence or absence of the recording medium. is there. The chassis 4 is provided with a feed roller 13 for feeding the print medium 9 to the surface facing the print head 1 and a pinch roller 14 at a position facing the feed roller 13. The recording head 1
Immediately after, a spur train 15 and a position facing the spur train 15 are provided on the guide rail 6 and a paper discharge roller 16 is provided rotatably on the chassis 4. The pinch roller 14 and the paper discharge roller 16 are configured to be urged by the feeding roller 13 and the spur 15 by elastic members (not shown), respectively. The feed roller 13 is drivingly connected to a drive motor 18 via a gear 17 arranged coaxially, and the discharge roller 16 is provided on a gear 19 provided at an end of the feed roller 13 and on the chassis 4. It is drivingly connected to the paper feed roller 13 via a gear train 20.

A recovery member 21 of the recording head 1 and a head protection member 23 are detachably provided on the protection member support 22 at a position on the chassis 4 where the recording medium 9 is avoided. The support 22 is a cam 2
4, and is drivingly connected to the drive motor 18 via a gear portion.

On the carrier 2, illumination, an optical system,
A read head 25 including a read element and the like is provided.

The operation of this embodiment having the above configuration will be described below.

First, at the time of recording, the carrier 2 moves to a position where the reading head 25 faces the head protection member 23 by the rotation of the drive motor 8. Next, drive motor 1
The rotation of 8 is transmitted to the gear 17 and the cam 24, the protection member support 22 moves upward, and the head protection member 23 is pressed against the reading surface of the reading head 25.

When the recording medium 9 is inserted between the upper guide 10 and the lower guide 11 in the direction of arrow A in the figure, the paper sensor 12 detects the presence or absence of the recording medium 9. Thereafter, the rotation of the drive motor 18 is controlled by the gear 17 to feed the paper feed roller 13.
The recording medium 9 is fed to a recording position facing the recording head 1 by the pressing of the feed roller 13 and the pinch roller 14.

Next, the carrier 2 is scanned on the recording medium 9 in the direction of arrow B in the figure by the rotation of the drive motor 8, and a recording signal is transmitted to the recording head 1 from a control unit (not shown) to perform recording. . After the printing of one row is completed, the printing medium is scanned in the direction of arrow A by driving the drive motor 18. This operation is repeated to perform predetermined recording.

After the recording is completed, the recording medium 9 is driven by a spur 15 and a discharge roller 16 which are driven by a gear 19 and a gear train 20.
Is discharged out of the apparatus.

In the recording standby state, the carrier 2 moves to a position where the ink ejection surface of the recording head 1 faces the recovery member 21 and the recovery member 2 to which the drive of the drive motor 18 is transmitted.
1 moves upward to protect the ink ejection surface of the recording head 1 from pressure contact.

Next, the reading operation will be described.

The drive surface of the carrier 2 is moved by the drive motor 8 so that the read surface of the read head 25 is protected.
2 so that it is located above. Next, the drive motor 18
The protection member support 22 is moved upward by the drive, the head protection member 23 is detached from the read head 25, and is moved onto the protection member support 22, and then the protection member support 23 is moved downward.

After that, the carrier 2 is moved from the head protecting member 23 on the protecting member support 22 to the ink ejection surface of the recording head 2.
Is moved by the rotation of the drive motor 8 so as to come to a position opposite to. Next, the protection member support 22 is moved upward by the rotation of the drive motor 18, the head protection member 23 is detached from the protection member support 22, and is mounted on the ink ejection surface of the recording head 1.

Next, as in the recording operation described above, the original 9 to be read is inserted from between the upper guide 10 and the lower guide 11,
The sheet is fed to a position facing the reading head 25 by the sheet feeding roller 13 and the pinch roller 14. Further, according to the scanning of the arrow B in FIG.
5 performs a reading operation. Hereinafter, after the read original 9 is scanned by the drive transmission of the drive motor 18, the above-described reading operation is repeated. Repeat the above operation sequentially,
A reading operation in a predetermined range is performed.

As is apparent from the above description, according to the present embodiment, during the printing operation, the head protection member is attached to the reading surface of the reading head, so that the ink mist generated by the printing head changes the reading head reading surface. In addition, at the time of the reading operation, the head protection member is attached to the ink ejection surface of the recording head, so that the ink ejection of the recording head can be prevented from sticking to the ink.
High quality recording and reading can be maintained.

Embodiment 2 FIG. 3 shows a perspective view of a head protection member according to another embodiment.

The head protection member 26 shown in FIG.
And a second head contact surface 28, and the second contact surface 28 is lower in height than the first contact surface. Also, the first head contact surface 27
Is in contact with the reading surface of the reading head, and the second head contact surface 28 is in contact with the ink ejection surface of the recording head. Further, the recording head has a shape such that when the second head contact surface contacts the ink ejection surface of the recording head, the first head contact surface does not contact the recording head.

The construction of this embodiment is different from that of the first embodiment only in the head protection member 26.
The description is omitted because it is the same as the first embodiment.

In this embodiment, the head protection member 26
In this case, the recording head contact surface 28 and the read head contact surface 27 are different from each other, and the recording head contact surface 28 is configured to be lower than the read head contact surface 27. Face 28
In addition, even if the ink attached to the ink ejection surface of the recording head 1 transfers, the ink does not transfer to the reading surface of the reading head 25.

[0028]

As is apparent from the above description, according to the present invention, a head protecting member for protecting the reading surface of the reading head during the recording operation and protecting the ink ejection surface of the recording head during the reading operation is provided. Thus, it is possible to configure an ink jet input / output device capable of recording and reading without lowering the performance of the recording head and the reading head.

[Brief description of the drawings]

FIG. 1 is an overall perspective view of an input / output device according to a first embodiment of the present invention.

FIG. 2 is a partial sectional view of the first embodiment of the present invention.

FIG. 3 is a perspective view showing a second embodiment of the present invention.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Recording head 2 Carrier 3 Electric connection part 4 Chassis 5 Guide shaft 6 Guide rail 7 Belt 8 Drive motor 9 Recording medium, read original 10 Upper guide 11 Lower guide 12 Paper sensor 13 Feed roller 14 Pinch roller 15 Spur 16 Discharge roller Reference Signs List 17 gear 18 drive motor 19 gear 20 gear train 21 recovery member 22 protection member support 23 head protection member 24 cam 25 read head 26 head protection member 27 first contact surface 28 second contact surface

Claims (3)

[Claims] A recording head for ejecting ink to a recording medium to perform recording, a reading head for reading a document to be read, and selectively mounted on an ink ejection port surface of the recording head or a reading surface of the reading head. And an ink jet input / output device comprising: 2. The ink jet input / output device according to claim 1, wherein said head surface protection member has a first head contact surface and a second head contact surface. 3. The ink-jet input / output device according to claim 2, wherein the first head contact surface and the second head contact surface have different heights.