RU2479434C2 - Printing head of thermal printer, equipped with device of print control - Google Patents

Abstract

FIELD: printing.

SUBSTANCE: invention relates to use of the printing head of the thermal printer, which is equipped with a device of print control and an image control sensor in roll printer as a control means when printing of receipts, in which each printed receipt is checked for compliance with the data that was given during the print setup.

EFFECT: control of printing of receipts is provided by comparing the pulses generated by the image control sensor and the pulses served on the printing head during the print setup.

5 cl, 2 dwg

Description

FIELD OF THE INVENTION

The present invention relates to a method for printing receipts, and more particularly, to a feedback printhead that is configured to match each printed receipt set by an operator or an automatic device.

State of the art

In printers in which paper is rolled up in a roll or reel, printing is carried out by means of a head that prints the contents of a panel or display, for which electronic and electrical components and related software (software) are used. Currently, all printers are equipped with heads that print without checking what is printed. As a result, the verification work is performed by the operator manually. In addition, it is believed that roll-fed printers are most used in the commercial sector. In fact, they are used mainly for printing receipts that are issued to the person who made the purchase or consumed various goods. Currently, in the event of a malfunctioning printer, printhead, or any other component, in the absence of immediate control by the operator or customer, the fact of incorrect or incomplete printing of a receipt may cause a subsequent conflict with the same customer. Thus, the use of printers used for automatic machines and not subject to verification can cause conflicts: in fact, it is impossible to verify that the receipt corresponds to a specific product, a certain service or a certain right. In addition, considering other forms of the possible use of a receipt that is different from the original image, such as using the same receipt for lotteries, for use as an indicator of the warranty period, or for linking to a specific form of payment, or the availability of information about the goods or provided services or products, or services for which profit or collection is obtained a second time, conflicts arise over the lack of verification of the printout; it can also lead to legal consequences for the seller or for the buyer.

The main objective of the present invention is to provide a printer that can automatically control what it prints and, therefore, that the printed image matches the data that is intended for the operator or for automatic printing settings. Using this method, it is possible to realize high safety standards for the accuracy of what is printed on the receipt.

The possibility of such control in the invented printer is realized mainly by means of a control sensor capable of reading the printout and converting the read data into electrical pulses of the same type as the pulses sent to the print head, as well as by connecting the sensor and print head to the control device .

Disclosure of invention

The present invention describes a printhead of a thermal printer equipped with a print control device and including an image monitoring sensor located in its upper part.

In another embodiment, the image monitoring sensor may be connected via cable to an electronic circuit board containing a control unit.

The head, according to another embodiment, may be connected to the electronic board via cable.

The head, image control sensor, cables, electronic board and control unit may be components of a feedback control circuit.

The head can also be configured to match each printed receipt set by the operator or automatic device.

Brief Description of the Drawings

The invention is illustrated by figures that do not impose restrictions on embodiments of the invention.

Figure 1 presents a schematic representation of the components that are part of this invention.

Figure 2 presents a side view of one of the embodiments of the invention related to a roll printer.

The implementation of the invention

In a preferred embodiment of the invention (which is preferred, but not exclusive), the invention includes an image monitoring sensor 1, which is installed in the upper part 2 of the print head 3. This sensor 1 is connected via cables 4 to the electronic circuit board 5 containing the control device 6. To the electronic a circuit board 5 containing a control device 6 is connected to a printhead 3 by means of a cable 7. Thus, it is possible to consider a control device 6 that prints on receipt 8 by means of a print head 3, it is possible to start the test by comparing the contents of the electronic components of the control device 6 with what is displayed on the screen for the operator by means of commands or by means of predetermined operations in the case of functioning in automatic mode. Thus, the control device can compare the data transmitted to the printhead 3 with the data that was actually printed on the receipt 8. In the case when the printing procedure of the receipt 8 was not started correctly, a signal is sent to the image monitoring sensor 1 connected to the device control 6, and the printing procedure is stopped, and the printing operation is resumed, or printing is stopped awaiting repair, or awaiting a pulse to start automatic diagnostics of printer components. During operation, the invention provides, during printing on a receipt 8, performed by the print head 3, sequential control by an image control sensor 1 located in the kinematic circuit after the print head 3, i.e. positioned so that you can control the printed information. After reading the printed information, the pulses generated by the image monitoring sensor 1 are transmitted via cables 4 to the electronic board 5, where they enter the control unit 6. By comparing the indicated pulses with the pulses supplied to the print head 3, the correspondence is checked with the data were set during print setup.

The implementation of the present invention is possible in the form of many options and changes. In addition, all elements can be replaced by their counterparts.

Claims (5)

1. The use of a print head of a thermal printer equipped with a print control device and including an image control sensor (1) located after the print head (3) with the ability to control the printed information in a roll printer as a means for printing receipts, in which compliance is checked for each printed receipts (8) with data that were set during print setup by comparing the pulses generated by the image control sensor (8) with the pulses fed to the furnace ayuschuyu head (3). 2. The use according to claim 1, in which the image monitoring sensor (1) is connected to an electronic board (5) containing a control unit (6) via a cable (4). 3. The use according to claim 2, in which the head (3) is connected to the electronic board (5) via cable (7). 4. The use according to claim 3, in which the head (3), the image monitoring sensor (1), cables (4, 7), the electronic board (5) and the control unit (6) are used as components of a feedback control circuit. 5. The use according to any one of claims 1 to 4, in which the verification of the conformity of each printed receipt (8) with the data that was set during the print setup is carried out by an operator or an automatic device.

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