JPH05229186A - Printer - Google Patents

Abstract

PURPOSE:To achieve high speed of printing with a printer by enabling waiting time for drawing in a drawing buffer to be shortened by a method wherein each printing page data of an odd page and an even page is successively stored and made to be alternately outputted to be printed with a printing mechanism part. CONSTITUTION:A main control part 8 of a printer 7 which receives a data from an upper device, carries out drawing to a drawing buffer 11 and outputs printing with a printing mechanism part 13. At that time a drawing control part 10 receives a data from the control part 8, and develops it into a character pattern to draw one page content of a printing page data 5 in a buffer 11. Then, when drawing of the data 5 is finished, the control part 10 draws a printing page data 6 on the second page. At the same time, the printing mechanism 13 outputs and prints the data 5. Then, when drawing of the data 5 is finished, the printing mechanism part 13 outputs data 6 and prints it. This operation is repeated. Data on pages of odd numbers is taken as (5), data on pages of even numbers is taken as (6), drawing is performed in the buffer 11, and the data 5 and 6 are alternately outputted to be printed with the printing mechanism part 13.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a printer device, and more particularly to a printer device which receives data from a host device and prints it.

[0002]

2. Description of the Related Art FIG. 4 is a timing chart showing an operation of an example of a conventional printer device.

A conventional printer device that receives data from a host device and prints it receives a data from the host device through a host interface and controls the operation of the entire printer device and one page. A drawing buffer (FB) having a capacity for storing print page data, and a drawing control unit for logically drawing one page of print page data in the drawing buffer under the control of the main control unit are provided.

In the thus constructed printer device, since the print page data stored inside is for one page, as shown in FIG. 4, the drawing control unit for one page with respect to the drawing buffer (FB). After the drawing of the print page data is completed (first page drawing time (D11) 15 in FIG. 4), the print mechanism section outputs and prints the print page data on the print sheet under the control of the print mechanism control section. (Printing time of the first page in FIG. 4 (P11)
16) After the output printing is completed, the drawing control unit draws the print page data of the second page in the drawing buffer (FB) (second page drawing time (D12) 17 in FIG. 4), The printing mechanism section outputs and prints the printing page data after the completion of the printing (second page printing time (P12) 18 in FIG. 4).

[0005]

As described above, in the conventional printer device, since the print page data stored inside is for one page, the drawing control unit stores one page for the drawing buffer (FB). After the drawing of the print page data is finished, until the printing mechanism section finishes the output printing of the print page data, the drawing control section sets the print page for the next one page in the drawing buffer (FB). It has a drawback that the drawing of data cannot be started, and therefore it is difficult to increase the printing speed of the printer.

[0006]

A printer device according to the present invention receives a data from a host device via a host interface and controls the operation of the printer device as a whole, and print page data for two pages. A drawing buffer having a storage capacity and a drawing control unit that logically draws two pages of print page data in the drawing buffer under the control of the main control unit are provided.

[0007]

Embodiments of the present invention will now be described with reference to the drawings.

FIG. 1 is a block diagram showing an embodiment of the present invention, FIG. 2 is a timing chart showing the operation of the embodiment of FIG. 1, and FIG. 3 is a schematic diagram showing the contents of the drawing buffer of the embodiment of FIG. is there.

The printer device 7 shown in FIG. 1 receives a data from the host device via the host interface 14 and stores a main controller 8 for controlling the operation of the printer device 7 as a whole and print page data for two pages. The drawing buffer (FB) 11 having a capacity, the drawing controller 10 that logically draws print page data for two pages in the drawing buffer (FB) 11 under the control of the main controller 8, and the drawing controller 10 performs drawing. A character pattern storage memory 9 storing a character pattern used when drawing print page data in the buffer (FB) 11, and print page data stored in the drawing buffer (FB) 11 on a print sheet. Printing mechanism 13 for output printing
And a print mechanism control unit 12 that receives print page data from the drawing control unit 10 and controls the operation of the print mechanism unit 13.

Next, the operation of the printer device 7 configured as described above will be described with reference to FIGS. 2 and 3.

The main control unit 8 of the printer device 7, which has received data from the host device via the host interface 14,
Drawing and printing mechanism unit 1 for drawing buffer (FB) 11
Output 3 is printed. At this time, the drawing control unit 10
Data is received from the main controller 8, the character pattern storage memory 9 is referred to, the character pattern is developed, and first, one page of print page data is drawn in the drawing buffer (FB) 11 (first print data in FIG. 2). Drawing time (D1) 1). This is the first print data 5 shown in FIG. When the drawing of the first print data 5 in the drawing buffer (FB) 11 is completed, the drawing control unit 10 continues to draw the drawing buffer (F
B) Print page data for the second page is drawn on 11 (second print data drawing time (D2) 3 in FIG. 2). This is Figure 3
The second print data 6 shown in FIG. At this time, at the same time,
The print mechanism unit 13 outputs and prints the first print data 5 under the control of the print mechanism control unit 12 (first print data print time (P1) 2 in FIG. 2). Drawing buffer (FB) 11
When the drawing of the print page data of the second page is finished, the printing mechanism unit 13 outputs and prints the second print data 6 (second print data printing time (P2) 4 in FIG. 2).

When the printing mechanism unit 13 is performing output printing of the second print data 6, the drawing control unit 10 causes the main control unit 8 to operate.
It receives the data from the printer and draws the print page data of the third page in the drawing buffer (FB) 11. Thereafter, this operation is repeated to print the odd page print page data as the first print data 5 in the drawing buffer (FB) 11 and the even page print page data as the second print data 6 in the drawing buffer (FB) 1.
1, the first print data 5 and the second print data 6 are alternately output and printed in the print mechanism unit 13.

[0013]

As described above, the printer device of the present invention is provided with a capacity for storing the print page data for two pages in the drawing buffer, and stores the odd page print page data and the even page print page data. Sequential storage and alternate output printing in the printing mechanism have the effect of shortening the waiting time for drawing in the drawing buffer, and therefore the effect of increasing the printing speed of the printer. is there.

[Brief description of drawings]

FIG. 1 is a block diagram showing an embodiment of the present invention.

FIG. 2 is a timing chart showing the operation of the embodiment of FIG.

FIG. 3 is a schematic diagram showing the contents of a drawing buffer of the embodiment of FIG.

FIG. 4 is a timing chart showing the operation of an example of a conventional printer device.

[Explanation of symbols]

 1 First Print Data Drawing Time (D1) 2 First Print Data Printing Time (P1) 3 Second Print Data Drawing Time (D2) 4 Second Print Data Printing Time (P2) 5 First Print Data 6 Second Print Data 7 Printer Device 8 Main Control Section 9 Character Pattern Storage Memory 10 Drawing Control Section 11 Drawing Buffer (FB) 12 Printing Mechanism Control Section 13 Printing Mechanism Section 14 Upper Interface 15 First Page Drawing Time (D11) 16 First Page Printing Time ( P11) 17 Second page drawing time (D12) 18 Second page printing time (P12)

Claims (1)

[Claims] 1. A main control unit that receives data from a host device via a host interface and controls the operation of the entire printer device; a drawing buffer having a capacity for storing print page data for two pages; A printer apparatus comprising: a drawing control unit that logically draws two pages of print page data in the drawing buffer under the control of the control unit.