JPS595867Y2 - Barcode printing device - Google Patents

Description

[Detailed Description of the Invention] The present invention relates to a barcode printing device that prints barcodes on price tags of distribution terminal devices, which are rapidly becoming popular in supermarkets and the like.

2. Description of the Related Art Recently, price tags for products, etc. that display the price in numbers that customers can read and also have bar codes attached to them so that sellers can obtain various data about the products are becoming popular in supermarkets and the like.

Of course, this event allows the seller to not only tally up the sales amount and sales volume, but also to take more effective measures regarding purchasing, product placement, etc.

Since these barcodes are usually read optically with a light pen or the like, it is necessary to print highly accurate barcodes, so a mechanical printing method is used.

However, these methods require troublesome ink handling, are noisy, and require a small amount of price tags.
It is inconvenient to create various price tags in a short period of time, and furthermore, ink generally adheres to various parts of the device, making maintenance complicated.

The present invention was developed based on the above-mentioned circumstances, and provides a highly accurate barcode printing device with an extremely simple device by integrating the discharge part of the barcode printing device using the electrostatic printing method into one. It is something to do.

An embodiment of the present invention will be described below based on the drawings.
is a discharge part, and in an insulating part 2 made of a highly insulating material such as epoxy resin, highly conductive and heat-resistant electrodes 1a, 1b, IC, etc. made of tungsten, stainless steel, etc. are placed on the end surface 1a. ', lb', lc'... are buried and exposed on the conveyance path 3 side.

The electrode 1a has a long thin plate shape in a direction perpendicular to the transport direction of the transport path 3, and the electrodes 1b, IC, . . . have a needle shape.

Of course, it goes without saying that the electrodes 1a, lb, IC, .

In addition, electrodes 1a, lb, IC...
A counter electrode 4 is provided at a position opposite to .

A sheet 5 having perforations in a direction orthogonal to the direction of arrow a is disposed on the conveyance path 3.

As shown in FIG. 5, this paper 5 is mounted on one end of the conveyance path 3 as a roll paper, and in front of the conveyance path 3 is a feed roller 6a,
6b, electrodes 1a, lb, IC... and counter electrode 4
, a developing device 7, a fixing device 8, and discharge devices 9a, 9b, etc., which are commonly used in electrostatic recording devices, are provided.

Next, the operation of the device of the present invention will be explained. Application information is set in advance by the control device 10.

When the paper 5 is conveyed, the electrodes 1a, lb, IC, etc. are connected to the control device 1 after a predetermined time has elapsed after a reference mark such as a notch on the paper 5 is read by a reader (not shown).
According to the information from 0, discharge is performed to the paper 5.

As shown in FIG. 4, the signal from the control device 10 is a bar code, where d is the thickness of the electrodes 1a, lb, IC, . The line width a is expressed as a=d+vt, but in reality, a becomes larger than the right side due to the spread of the discharge.

Therefore, by changing the voltage application time t, the thickness of the barcode can be changed arbitrarily.

In addition, in order to print legible numbers corresponding to the barcode, necessary information can be obtained by applying voltage to the electrodes 1b, vc, etc. according to the character pattern information corresponding to the numbers. It will be done.

Then, the sheet 5 to which the latent image information has been added is conveyed to the developing device 7, where it is developed, further conveyed to the fixing device 8, where it is fixed, and then discharged out of the apparatus by the discharge devices 9a, 9b.

As mentioned above, the present invention achieves printing with a level of precision comparable to that achieved with conventional mechanical printing devices by reducing the number of discharge parts to one in a barcode printing device using an electrostatic printing method. Moreover, since it is an electrostatic printing method, maintenance of the ink and equipment is extremely easy, and it has extremely effective practical effects such as being able to prevent noise.

[Brief explanation of drawings]

Fig. 1 is a perspective view showing an embodiment of the present invention, Fig. 2 is a sectional view of the discharge section, Fig. 3 is an explanatory diagram showing the relationship between the electrodes and the barcode, and Fig. 4 is the voltage application. FIG. 5, which is an explanatory diagram showing the relationship between signals and barcodes, is also a side view of the device. 1...discharge section, la, lb, IC...
...Electrode, 2...Insulation part, 3...
Conveyance path, 5...paper, 7...developing device, 10...control device.

Claims (1)

[Scope of utility model registration request] a conveyance device that conveys a sheet of paper having an electrostatic recording layer on at least one side along a conveyance path; A discharge section has a plate-like electrode whose longitudinal direction is perpendicular to the conveyance direction of the conveyance path and a plurality of needle-like electrodes that impart character pattern information, and a high voltage is applied to the discharge section. a control device that applies voltage and changes the voltage application time to the discharge section according to the thickness of the bar code to be printed; and a control device that visualizes latent image information formed on the electrostatic recording layer by the discharge section. A barcode printing device comprising: a developing device.