JPS63194958A - Printer - Google Patents

Abstract

PURPOSE:To obtain a printer of a good cost performance which conforms to an apparatus of various kinds of process speeds, by a method wherein a printer is so constructed as to be able to have a plurality of drawing control parts which draw a code data in a dot image, a printing data of one page content received from a host unit is divided into n-pieces to be edited and respective divided pieces make n-drawing control parts perform drawing for printing. CONSTITUTION:A printing data sent from a host unit is received by a control part 1 and stored in a page buffer 2. An editing means located on the control part 1 performs n-divided edition in the manner that, based upon the line-shift information covering one page, several lines content for before and after the line being divided may overlap with other. With respect to each of drawing module 3, the drawing starting position information is imparted by the control part 1 after calculation. The drawing control module 3, being ordered to start operation by the control part 1, takes-in printing data which has been re-edited for its own use from the page buffer 2, extracts patterns from a built-in character pattern memory 3-2, performs drawing on a pit-map memory 3-3. At the same time, a device control part is energized for operation, read out data from each pit-map memory 3-3, performs ORing and printing.

Description

DETAILED DESCRIPTION OF THE INVENTION [Field of Industrial Application] The present invention relates to a printing device, and particularly to drawing control for drawing code data into a dot image.

[Conventional technology]

Conventionally, the page printing equipment in this building has various device process speeds, ranging from equipment of about 150 LPM to 1010 LPM.
000LP: There are many types of page printing devices, and the controllers of these page printing devices either match the speed of each printing device or have a very large degree of redundancy.

[Problem that the invention seeks to solve]

The controller of the conventional page printing device mentioned above is either a controller that matches the process speed of the printing device or a controller with very high redundancy.
When used as a controller for equipment with different process speeds, there are drawbacks such as it cannot be used at all and the controller must be redeveloped, and redundancy increases, which increases costs.

[Means for solving problems]

The printing device of the present invention includes n drawing control modules including a character pattern memory, a bitmap memory, a drawing control section, a page buffer for storing code data, and 9 control sections that perform status management and upper interface control of the printing device. and a means for dividing and editing the print data given to the SNM drawing control module from one page of data in the control section.

〔Example〕

Next, the present invention will be explained with reference to the drawings.

FIG. 1 is a schematic block diagram of one embodiment of the present invention. Figure 2 shows one page of data being processed by three drawing control modules.
It is a conceptual diagram when dividing and editing into.

Print data sent from the host device is received by the control unit and stored in the page buffer.

At this time, the data aggregation means on the control unit divides and edits the page into n pieces according to the line feed information within one page so that the front and back of the divisibility are several lines apart as shown in FIG.

At this time, the control unit also calculates and provides information on the drawing start position of the print data to be provided to each drawing module.

Once these n pieces of print data have been collected, the control section sequentially activates the drawing control module (1), (2), and so on. The activated drawing control module takes in the print data that has been edited for its own use in the page buffer, extracts the pattern from the internal character pattern memory, and draws it into the bitmap memory. When all the drawing control modules have finished drawing, the device control section is activated, reads out the data from each bitmap memory, and prints it.

In recent years, IC memory technology, gate arrays, microprocessors,
As technology advances, the drawing control module 1 mentioned above can easily fit on one card. Therefore, for example, the drawing performance of this drawing control module is 8 PPM (page 7 minutes).
If so, it can be realized by incorporating two control modules 3 into the controller of the 15PPM device.

〔Effect of the invention〕

As described above, the present invention has a configuration that has a plurality of drawing control units that draw code data into dot images, divides and edits one page of print data received from the host into n pieces, and draws n pieces. By having the control section draw and print, it is possible to provide a printing device with good cost efficiency that is suitable for devices with various process speeds.

[Brief explanation of the drawing]

FIG. 1 is a schematic block diagram of the present invention. FIG. 2 is a conceptual diagram when dividing one page of data. 1...Control unit, 2...Page buffer, 3...Drawing control module, 3-1...
...Drawing control unit, 3-12...Character pattern memory, 3-3...Bitmap memory, 4...
...Device control unit, 5...Pre-print 5
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Claims (1)

[Claims] n drawing control modules including a character pattern memory, a bitmap memory, and a drawing control section; a page buffer for storing code data; a control section for managing the status of the printing device and controlling the upper interface; 1. A printing device comprising means for dividing and editing print data given to each drawing control module from one page of data.