JPS59226936A - Print output device - Google Patents

Abstract

PURPOSE:To set the density of print output or to add an auxiliary pattern, etc. in a finely accurate way by controlling these jobs with direct relation to the print output data stored in a memory. CONSTITUTION:For control of density of the print/output, a microprocessor MPU1 feeds the print output address and the read/write (R/W) control signal to a memory MEM2. In this case, the density code is changed and written for every (n) bits of the print output data. When the MEM2 is read out, the data and the density are stored to registers REGs11 and 12 respectively with each timing. Then a multiplexer MPX13 supplies the output corresponding to the density for every (n) bits to either one of AND circuits 151-15n. While the signal showing the density in the form of the duty width of the 1-bit cycle is sent to the other input of the AND circuit from a density generating circuit 14. The output of each AND circuit is sent to a print part after the video output is obtained via an OR circuit 16.

Description

Detailed Description of the Invention (1) Technical Field of the Invention The present invention provides a method for storing control of print output density and auxiliary graphic addition in the memory when printing output data is read from the memory and a feed printout is obtained in the printing section. The present invention relates to a print output device that performs printing in direct association with printed print output data.

(2) Prior Art and Problems An example of a conventional print output device that reads print output data from a memory and obtains a print output is shown in FIG.

That is, it is controlled by the microprocessor (MPU) 1 through the serial address path, R/v control bus, and data path. The print output data stored in j (MEM) 2 is read out and printed out by the printing section 4 via the register (REG) 5. Furthermore, data is exchanged with the main control section (MC) through the interface 5.

In this case, the density of the print output is controlled separately and is not directly related to the print output data retrieved from memory, so if you want to make detailed density changes to the peaks and troughs of the print output data, you can becomes troublesome.

(3) Object of the Invention An object of the present invention is to provide a print output device in which the density of print output and the addition of auxiliary graphics are controlled in direct relation to print output data stored in a memory.

(4) Structure of the Invention In order to achieve the above object, the print output device of the present invention reads out print output data from a memory and feeds it to a printing section, and provides a print output device that is identical to the print output data in the memory. Control data for controlling either or both of the density of the data and the auxiliary figure is added to the address, and the control data is read together with the print order output data to obtain a print output that is highly controlled by the control data. It is characterized by:

(5) Embodiment of the Invention FIG. 2 is an explanatory diagram of the configuration of an embodiment of the invention, and shows an example in which weave control is performed on print output.

In the same figure, the memo shown in Figure 1! J (MEM')
2, the address for predetermined print output data (under the control of MPU 1) and the address -1"/2 () (R/w
) Input the control signal. In MBM2, a control bit indicating the density is stored at the same address as the print output data. That is, the density code is updated and written every n bits of print output data. Therefore, when reading from MEM2, the data is transferred to the register (RJi2G) 11 at the timing of the data and concentration as shown in i@5 diagram stem).
, the concentration is temporarily stored in the register (RJIEG) 12,
Shifted by the clock (CLK), the multiplexer (M
PX)it sends an output corresponding to the density every n bits as one input of the AND circuit 151 r 15z *..., 15%. As the other input, a signal representing the density as a duty width in one dot cycle is sent from the density generating circuit 14 as shown in FIG. 6(b), and each AND circuit 1
Outputs from outside 51 to 15 are passed through an OR circuit 16 to obtain a video output and sent to the printing section. That is, by switching every n bits of print output data using an ambiguity code of the same address, a density pulse having a width corresponding to this density is output from the HD circuit. The width of this density pulse controls the dot diameter of the printing section. The printing method of the printing section is a type in which the dot diameter changes depending on the duty time of the dot cycle.

For example, electrostatic type, discharge type, thermal type, etc. printing devices are suitable.

FIGS. 4(α) and 4(b) are explanatory diagrams showing the effects of the present invention.

The figure (α) shows the dot area of the printing paper 10.
In order to represent the shading of the two graphic characters, printing is performed by varying the print dot diameter, as shown by the 8-bit data (■, ■, ■) in the figure.

The same figure (b) shows the same figure (as shown in the bit configuration of memory 2 corresponding to the 8-bit data, a density control bit of 2 pits each is added after the 8-bit data, and this density code determines the print dot diameter of the printing part. is controlled and represented by the shading of large and small dots as shown in FIG. 3(a).

In the above, the density code is added to the same address as the print output data, but it is also possible to add control data of the required bits indicating auxiliary figures to be added to the print output data, such as underlines, erase lines, frames, etc. These can also be used together with density codes.

(6) As described in detail, according to the present invention, control data for controlling either or both of the density and auxiliary graphics of the data is added to the same address as the print output data in the memory, and the print output data is Control data is read along with the output, and print output is obtained that is highly controlled by the control data. This makes it easier to change the density of print output data, add auxiliary graphics, etc., independently and separately.

This greatly simplifies the operation and allows for detailed and accurate operation.

[Brief explanation of the drawing]

FIG. 1 is a 1+1 explanatory diagram of a conventional printing output device, FIG. 2 is an explanatory diagram of the configuration of an embodiment of the present invention, and FIG. 6 (α). (6) is an explanatory diagram of the operation of the main parts of the embodiment, Fig. 4 @),
(b) is an explanatory diagram showing the effect of the present invention. In the diagram, 2 is a memo! j, 11112 is a register, 13 is a multiplexer, 14 is a concentration generation circuit, 151, 15s r...
, 15% indicates an AND circuit, and 16 indicates an OR circuit. Patent applicant: Fujitsu Limited, sub-agent patent attorney 1) Yoshishige Saka

Claims (1)

[Claims] In a print output device that reads print output data from a memory and sends the print output to a printing unit, control data for controlling either or both of the density and auxiliary graphics of the data is stored at the same address as the print output data in the memory. 1. A print output device, characterized in that said control data is added to said print output data and read out together with said print output data to obtain a print output that is highly controlled by said control data.