JPH06238964A - Variable printing pressure printer - Google Patents

Abstract

PURPOSE:To provide a printer in which a printing result remains only on a first page of manifold forms and the result and a trace of an impact do not remain on second and following pages. CONSTITUTION:A printer comprises a data analyzing-processor 4, a printing pressure controller 7 and a printer 9. The processor 4 receives a data stream having print data and a printing pressure change command from a print controller 1, and sends the data to the printer 9 and the command to the controller 7. The controller 7 receives the command, generates a printing pressure control signal based on the command, and sends it to the printer 9. The printer 9 changes a printing pressure in response to a printing pressure control signal and prints the received data.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a printing apparatus for printing copy paper, and more particularly to a printing pressure variable printing apparatus in which the printing pressure can be changed by a command from a printing control apparatus.

[0002]

2. Description of the Related Art As a printing pressure adjusting device, Japanese Patent Laid-Open No.
No. 76371, there is known a device for adjusting the strength of the printing pressure by appropriately changing and combining the on / off set positions of a pair of first row and second row dip switches in charge of one type wheel. Has been.

[0003]

When a copy paper voucher is printed by an impact type printing apparatus, the copying process is not performed, and the partial data which is not desired to be copied has an impact. There are indentations on the surface and the characters can be identified. For this reason, in the case of business such as printing the cost and selling price of a product on the slip such as an invoice with the first page as a copy, copying only the selling price on the second and subsequent pages and sending it to the customer, I know the cost. In the above-mentioned related art, the printing pressure is adjusted by the DIP switch, the printing pressure after setting once is uniform, and the printing pressure of only a part of data cannot be changed by a command from the printing control device. For this reason, if the printing pressure is set to be strong, even a portion of the data that is not desired to be copied will be imprinted on the second and subsequent pages, and if the printing pressure is weakened, the copying ability of the data to be copied will be deteriorated. An object of the present invention is a copy paper slip, in which data to be copied is printed with a printing pressure suitable for copying, and data to be copied is not
It is an object of the present invention to provide a printing apparatus in which the printing pressure is weakened and no impression is made on the second and subsequent pages.

[0004]

[Means for Solving the Problems] Data analysis / printing
The processing unit, the printing pressure control unit, and the printing unit are provided, and the data analysis / processing unit receives the data stream including the printing data and the printing pressure change command, and sends the printing data to the printing unit. To the printing pressure control unit, the printing pressure control unit receives the printing pressure change command, generates a printing pressure control signal based on the command, and sends the printing pressure control signal to the printing unit, and the printing unit outputs the printing pressure control signal. The print pressure is accordingly changed and the received print data is printed. In addition to the above, the printing apparatus includes a data analysis / processing unit, a printing unit selection control unit, an impact type printing unit, and a non-impact type printing unit, and the data analysis / processing unit is configured to print data and print pressure. Receives a data stream consisting of a change command, sends print data to the impact type printing unit and non-impact type print unit, and sends a print pressure change command to the print unit selection control unit,
The printing unit selection control unit receives the printing pressure change command, sends a selection signal for selecting one of the printing units to each printing unit according to the command, and the printing unit selected by the selection signal The received print data is printed.

[0005]

By the above means, the control of the printing pressure is performed by the received printing pressure change command, and the print data received after the printing pressure change command is printed by the changed printing pressure.
Further, the impact type printing unit and the non-impact type printing unit are selected by the printing pressure change command, and the print data received after the printing pressure change command is printed by the selected printing unit. As a result, it is possible to change the change of the printing pressure when printing the print data by the command received together with the print data, and the impact of the data that is printed on the first page of the slip but is not printed on the second and subsequent pages. Since the indentation does not remain on the second and subsequent pages, the confidentiality of the print data on the first page can be held for the customer who receives the second and subsequent pages.

[0006]

【Example】

(Embodiment 1) An embodiment of the present invention will be described below with reference to the drawings. FIG. 1 is a block diagram showing a schematic configuration of a printing system using an embodiment of the present invention. In FIG. 1, reference numeral 3 denotes a printing apparatus according to an embodiment of the present invention, 1 denotes a printing control apparatus, which creates data to be transmitted to the printing apparatus 3 and sends the data to the printing apparatus 3 via a signal line 2. Send. The printing device 3 includes a data analysis / processing unit 4, a printing pressure control unit 7, and a printing unit 9. 5, 6 and 8 are signal lines. The data analysis / processing unit 4 analyzes the data transmitted from the print control apparatus 1 and, if the data is a print pressure change command, transmits the print pressure change command to the print pressure control unit 7 via the signal line 5. Then
If the data is print data, the print data is sent to the signal line 6
To the printing unit 9 (impact system) via. Upon receiving the printing pressure change command, the printing pressure control unit 7 generates a printing pressure control signal based on the command, sends the signal to the printing unit 9 via the signal line 8, and controls the printing pressure of the printing unit 9. To do.

FIG. 2 shows an example of a data stream transmitted from the print control apparatus 1 to the data analysis / processing section 4 of the printing apparatus 3. FIG. 3 shows the result of printing with the data stream of FIG. In this example, the first page is used as a sales statement 20 (for issuing source copy) and the second page is used as a billing statement 21 (for customer delivery), and the item name, quantity, selling unit price, and selling price of the sales statement 20 are used. Although the back surface of each column 22 of (selling price amount) is subjected to back carbon treatment, it is not applied to the back surface of each column 23 of original unit price and original amount (cost total amount).

In FIG. 2, 11 ABC is the product name, 12 ABC
Is a space, 13 is a quantity, 15 is an original unit price, 16 is an original amount of money, 18 is a selling unit price, and 19 is each character and numerical data of the selling price. The original unit price of 15 and the original amount of money 16 are not copied to the billing statement 21 on the second page, so the original unit price is 1
Before 5, the printing pressure weakness designation command 14 is transmitted as the printing pressure change command. Since it is desired to copy the second page after the selling unit price 18 similarly to the product name 11 and the quantity 13, the print pressure specification canceling command 17 is transmitted as the print pressure changing command. Data analysis
The processing unit 4 receives the data transmitted from the print control apparatus 1 and analyzes the data, and if the data is the print pressure change command, that is, the print pressure weakness designation command 14 or the print pressure weakness designation cancellation command 17. , These commands are transmitted to the printing pressure control unit 7 via the signal line 5, and if the data is print data, the print data is transmitted to the printing unit 9 (impact system) via the signal line 6. The printing unit 9 initially performs printing with a strong current applied to the coil. Printing pressure controller 7
When receiving the printing pressure weakness designation command 14, sends a current value weak mode setting signal to the printing unit 9, and the printing unit 9 weakens the current applied to the coil by this signal. Then, when the printing pressure control section 7 receives the printing pressure weakness designation release command 17, it sends a current value weakness mode clear signal to the printing section 9, and the printing section 9 applies the current applied to the coil by this signal. Make it stronger. The printing unit 9 prints the print data while adjusting the printing pressure as described above.

As a result, the printing apparatus 3 prints the product name 11, quantity 13, unit price 18 and unit price 19 in FIG. 2 with a strong printing pressure, and the original unit price 15 and the original amount 16 with a weak printing pressure. It Therefore, in FIG. 3, all the data is printed on the sales statement 20 on the first page, but the original unit price 15 and the original amount 16 are not printed on the invoice statement 21 on the second page. The original unit price of 15 and the original amount of money 16 are never known to the customer, because no indentation is left.

(Second Embodiment) FIG. 4 is a block diagram showing the schematic arrangement of a printing system using the second embodiment. In the first embodiment, the impact type printing unit 9 in the printing apparatus 3 is used.
However, in the present embodiment, two printing units, an impact type printing unit and a non-impact type printing unit, are provided as the printing units of the printing apparatus.

The printing apparatus 103 includes a data analysis / processing unit 10
4, a printing unit selection control unit 106, a printing unit A (impact system) 109, and a printing unit B (non-impact system) 110. 105, 107 and 108 are signal lines. The print control apparatus 1 is the same as that of the first embodiment, and sends a data stream as shown in FIG. 2 to the data analysis / processing unit 104 of the printing apparatus 103. The data analysis / processing unit 104 receives the data stream, analyzes the data stream, and if the data is the printing pressure change command, that is, the printing pressure weakness designation command 14 or the printing pressure weakness designation cancellation command 17, executes these commands. If the print data is transmitted to the printing unit selection control unit 106 via the signal line 105 and the data is print data, the printing data is sent to the printing unit A (impact method) 109 and the printing unit B (non-impact method) via the signal line 111. ) 110. If the printing pressure selection instruction 14 has not been received, the printing unit selection control unit 106 prints the printing unit A (impact method) 109.
Is selected, the print data is printed by the printing unit A, and when the print pressure specification instruction 14 is received, a selection signal is sent to each printing unit and the printing unit B (non-impact method) 1
10 is selected and the print data is printed by the printing unit B. Then, when the printing section selection control section 106 receives the printing pressure specification cancellation command, it sends a selection signal to each printing section to select the printing section A (impact method) 109, and the printing data is printed by the printing section A. Printed.

As a result, the product name 11, the quantity 13, the unit price 18 and the selling price 19 shown in FIG. 2 are printed by the printing unit A109 in the impact method, and the original unit price 15 and the original amount 16 are printed in the non-impact method by the printing unit B110. Will print. As a result, all the data is printed on the sales statement 20 on the first page, but the invoice statement 21 on the second page
Since the original unit price 15 and the cost total amount 16 are not printed and no impression impression is left, the original unit price 15 and the cost total amount 16 are not known to the customer.

FIG. 5 is a flow chart for explaining the process of creating and transmitting data in the print control device 1 used in the above printing system. The print control device 1 reads the data from the storage device or receives the data from another device, determines whether the data is the original unit price data, and if it is the original unit price data, prints the print pressure specification instruction 14 If it is not the original unit price data, it is judged whether it is the selling unit price data, and if it is the selling unit price data, the print pressure specification cancellation command 17 is transmitted to the printing apparatus 3, and the original unit price data is also sold. If it is not the unit price data but the print data, the print data is transmitted to the printing device 3 as it is, and if it is the data end, the process is ended, and if it is not the data end, the above process is repeated.

[0014]

According to the present invention, in printing a copy slip, it is possible to change the printing pressure when printing print data by a command received together with the print data, and the first page of the slip can be changed. Prints, but is not printed on the second and subsequent pages. Imprints due to the impact of data do not remain on the second and subsequent pages, so the confidentiality of the first page of print data is retained for customers who receive the second and subsequent pages. be able to.

[Brief description of drawings]

FIG. 1 is a block diagram showing a schematic configuration of a printing system using an embodiment of the present invention.

FIG. 2 is a diagram illustrating an example of a data stream transmitted from a print control device to a printing device.

FIG. 3 is a diagram showing a result of printing by the printing apparatus of the embodiment.

FIG. 4 is a block diagram showing a schematic configuration of a printing system using a second embodiment of the present invention.

FIG. 5 is a flowchart illustrating a process of creating and transmitting data in the print control apparatus.

[Explanation of symbols]

 1 Printing Control Device 2, 5, 6, 8 Signal Line 3, 103 Printing Device 4, 104 Data Analysis / Processing Section 7 Printing Pressure Control Section 9 Printing Section 105, 107, 108, 111 Signal Line 106 Printing Section Selection Control Section 109 Printing section A 110 Printing section B

Claims (2)

[Claims] 1. A printing pressure variable printing device comprising a data analysis / processing unit, a printing pressure control unit, and a printing unit, wherein the data analysis / processing unit is a data stream including print data and a printing pressure change command. And sending a print data to the printing unit and a print pressure change command to the print pressure control unit, the print pressure control unit receiving the print pressure change command and printing based on the command. It has means for generating a pressure control signal and sending it to the printing unit, wherein the printing unit changes the printing pressure according to the printing pressure control signal and prints the received print data. Variable printing pressure printing device. 2. A printing pressure variable printing device comprising a data analysis / processing unit, a printing unit selection control unit, an impact type printing unit, and a non-impact type printing unit, wherein the data analysis / processing unit is a printing unit. A means for receiving a data stream consisting of data and a printing pressure change command, sending print data to the impact type printing unit and non-impact type printing unit, and sending a printing pressure change command to the printing unit selection control unit; The printing unit selection control unit has means for receiving a printing pressure change command and sending a selection signal to the printing unit to select one of the printing units according to the command. The printing pressure variable printing device, wherein the printing unit selected by the above prints the received print data.