JPS6242846A - Ink jet recorder - Google Patents

Abstract

PURPOSE:To permit a recording medium and a recording to be protected easily by providing an attachment by which to attach a protector for protecting the recording medium and the recording. CONSTITUTION:A tank 7 stores a protecting material for a recording paper and a recording formed on the paper, e.g., a protecting liquid prepared by dissolving a high polymer in a solvent. When recording by recording heads 3a-3d is ended and the end portion 2E of the recording is detected by an end sensor 5, the detected signal is put in a control circuit 12, and on the basis of the signal, a fixed pressure pump 8 is driven by a drive circuit 9 to open a valve 10. The protective liquid is then jetted from a nozzle 11 onto a recording paper 2; and on the other hand, the attachment to attach the heads 3a-3d begins to return to the opposite direction to arrow mark X to turn a rotary drum 1 at an adequate speed. When an aperture (g) where no recording paper 2 is present is directed in a place in the face of the nozzle 1 for every turning, it is detected by a region sensor 6, and on the basis of the detection signal, the control circuit 12 closes a valve 10 and interrupts the jetting of the protective liquid at the moment the aperture (g) passes.

Description

DETAILED DESCRIPTION OF THE INVENTION [Field of Application of the Invention] The present invention relates to an inkjet recording apparatus that records arbitrary characters, two figures, etc. on a recording medium using inkjet particles.

[Background of the invention]

An inkjet recording device takes out stored ink, applies a predetermined vibration to it using an excitation device, ejects it as inkjet particles from a nozzle, and charges selected particles of the inkjet particles with a control electrode. This device records arbitrary characters, figures, etc. by deflecting the inkjet particles and colliding them against a recording medium such as recording paper stretched over a rotating drum. Inkjet particles that are not used to form characters, graphics, etc. are collected in the gutter and then returned to the ink reservoir. In the inkjet recording apparatus as described above, a recording head is constituted by an excitation device, a nozzle, a control electrode, a gutter, etc., and this recording head is installed facing a rotating drum. Recording of characters, figures, etc. is performed by rotating the rotary drum and moving the recording head along the longitudinal direction of the rotary drum.

By the way, recording media (hereinafter referred to as recording paper) on which characters, figures, etc. are recorded are generally easily scratched, and the color may fade due to light, or the recording may smear or be damaged due to water. There were problems such as the paper itself being damaged. In order to solve this problem, various studies have been made to improve the recording paper and ink used for recording, but nothing satisfactory has yet been achieved. On the other hand, apart from research on these materials, other means are being taken to solve the above problems.

That is, after marking the letter 1M, etc., the recording paper is laminated with a plastic film using a separately provided laminator "211. However, the means for laminating the recording paper with such a laminator device is not provided separately. This method has disadvantages in that it requires a laminator and requires time and effort to laminate using the device.

[Purpose of the invention]

The present invention has been made in view of the above circumstances, and its purpose is to solve the problems of the prior art described in I-1 and to produce a recording medium and recording without using a separately provided laminator device. The purpose of the present invention is to provide an Infusiera 1 recording device that can be protected.

[Summary of the Invention] In order to achieve the above object, the present invention provides an inkjet recording device itself with a protective material attached to the recording medium and the recording for protecting the recording medium and the recording formed on the recording medium. It is characterized by the fact that it is equipped with a japling device.

[Embodiments of the invention]

Hereinafter, the present invention will be explained based on illustrated embodiments.

The figure is a system diagram of a color inkjet recording apparatus according to an embodiment of the present invention, in which 1 is a rotating drum that rotates at a predetermined period in the direction of arrow R, and 2 is a recording sheet mounted on a rotating drum LF. It is. 2S marks the recording start edge of recording paper 2,
2E indicates the end of recording paper 20), 3a, 3b,
3c and 3d are the aforementioned recording fields. Recording head 3a
, 3b.

For example, ink of black, cyan, magenta, and yellow 11- is supplied to 3c and 3d, respectively, and inkjet particles of the corresponding colors are ejected. To each record 3a-3d
is attached to one attachment member (not shown) -F and driven in the direction of arrow X.

4 is a starting edge sensor that detects the recording start edge 2S of the recording paper 2; 5 is a trailing edge sensor 1 that detects the recording end edge 2E of the recording paper 2;
Number 6 is the gap g between the longitudinal edges of the recording paper 2 mounted on the rotating drum 1 (area where the recording paper 2 does not exist)
(meeting with area sensor that detects). The starting end sensor 4 and the ending end sensor 51 are attached to appropriate positions on the mounting member (not shown).

Reference numeral 7 denotes a tank containing a protective liquid prepared by dissolving a material such as a polymeric material in a solvent to protect the recording paper and the records formed on the recording paper. 8 is a constant pressure pump that applies a constant pressure to the protective liquid in the tank 7; 9 is a drive circuit for the constant pressure pump 8;
IO is a valve that opens and closes the protective liquid from the tank 7, and ]l is a nozzle that spouts the protective liquid. The nozzle 11 is attached to the aforementioned member 4-J (not shown), and is connected to the recording head 3a.
~Moves with 3d. I2 is the starting end sensor 4. v! This is a control circuit that receives detection signals from the end sensor 5 and area sensor 6 and controls the drive circuit 9 and valve 10 based on these signals.

Next, the present invention will be explained in detail. First, rotating drum J, 1
rotates in the direction of arrow R at a predetermined period, and along with the
The recording heads 3a to 3d move in the direction of arrow X. As a result, the recording paper 2 is scanned from the recording start end 2S to the recording end 2E, and a character 1 graphic etc. is recorded in color by inkjet particles ejected from each recording window 3a to 3d. At the start of recording, the drive circuit 9 keeps the constant pressure pump 8 inactive and the valve closed by the control circuit 12. Starting edge sensor 4 is recording starting edge 2
This state does not change even if S is detected.

When the recording by the recording fields 3a to 3d ends and the end sensor 5 detects the recording end end 2E, this detection signal is inputted to the control circuit 12, and based on this, the constant pressure pump 8 is driven by the drive circuit 9, and the valve It will be held at 10am. For this reason,
The protective liquid from the tank 7 is ejected from the nozzle 11 onto the recording paper 2. On the other hand, take the recording heads 3a to 3d ζ
The mounting member begins to return in the direction opposite to the arrow X, and
The rotating drum 1 is rotated at an appropriate speed (an appropriate speed for applying the protective liquid). When the gap g where the recording paper 2 does not exist enters the position facing the nozzle 11 for each rotation, the area sensor 6 detects this, and the control circuit 12 uses the detection signal to detect the instant when the gap g has passed. , close the valve lO to cut off the spraying of the protective liquid.

Such an operation is repeated until the movement of the attachment part +A in the direction of the arrow will adhere and a protective film will be formed. When the movement of the mounting member is completed and the start end sensor 4 detects the recording amount start end 2S, the control Flr! ! The first path 12 stops the constant pressure pump 8 and closes the valve 10 based on this detection signal. Finally, the recording paper 2 is removed from the rotating drum 1.

In this way, in this embodiment, when the recording head is returned to the recording start position after recording on the recording paper, the protective liquid is applied to the recording paper using the return operation. Without the need for a laminator device, and without the hassle and waiting time required when using a laminator device,
Record sheets and records can be protected. moreover,
The scope of application as an inkjet recording device (fields such as posters) can be expanded. Furthermore, it becomes possible to use recording paper other than special paper.

Note that drying of the applied protective liquid may be accelerated using a heater or the like as appropriate.

〔Effect of the invention〕

As described above, in the present invention, an inkjet recording apparatus is provided with an adhering device for adhering a protective material for protecting a recording medium and recordings, so that there is no need to provide a separate laminator device, and Recording media and records can be easily protected without requiring the effort and time of using it.

[Brief explanation of drawings]

The figure is a system diagram of an inkjet recording apparatus according to an embodiment of the present invention. 1... Rotating drum, 2... Recording paper, 2S...
... Recording amount start end, 2E ... Recording end end, 3a to 3d
... Recording head, 4... End sensor, 5...
・Terminal sensor, 6... area sensor, 7... tank, 8... constant pressure pump, 9... drive circuit, 10
... Valve, 11... Nozzle, 12... Control circuit.

Claims (1)

[Claims] In an inkjet recording apparatus including a rotating drum, a recording medium mounted on the rotating drum, and a recording head that records on the recording medium, a protective material is provided to protect the recording medium and recordings formed on the recording medium. An inkjet recording apparatus comprising: a container for accommodating the container; and an adhesion device for adhering the protective material in the container to the recording medium and the recording.