JPH0355624A - Printer device - Google Patents

Abstract

PURPOSE:To quickly confirm data by providing a data display part which displays the data stored in a video data storage part and a video data display control part which controls the data display part. CONSTITUTION:A central processing part 2 processes the output data received by a host interface part 1 from a host device and stores the processed data in a video data storage part 3 with the density accordant with the image resolution of a printing part 4. The data are sent to the part 4 from the part 3 via the part 2 and printed on a printing sheet. In this case, the part 2 actuates a video data display part 6 as long as a 1st dip switch 10A is kept turned on. The part 6 is controlled by a start instruction given from the part 2. The data are read out of the part 3 and sent to a display part 5 after conversion in response to the image resolution of the part 5. Thus the data to be printed are displayed at the part 5.

Description

[Detailed Description of the Invention] [Industrial Application Field] The present invention relates to a printer device, and particularly to a printer device suitable for a page printer that stores at least one page of data and outputs it on printing paper. ．． [Prior Art] Conventionally, this type of page printer device has a high-level interface unit that receives data transferred from a high-level machine and transmits it to each part of the printer device, and a high-level interface unit that receives data sent from this high-level interface unit. a central processing unit that interprets the data, a video data storage unit that stores the data sent from the central processing unit, a character pattern generation unit that converts the data into a character pattern according to the interpretation of the central processing unit, and this character pattern generation unit. It consisted of a printing section, which printed the character patterns converted by the printer onto printing paper via a central processing section. Then, the central processing unit interprets one page of data transferred from the host machine via the host interface,
The character pattern is read from the character pattern generation section and stored in the video data storage section, the image data is developed into the video data storage section, and then one page's worth of data is stored. Once the data was expanded, it was sent to the printing department, which printed one page of data at a time onto printing paper. [Problems to be Solved by the Invention] However, the above conventional example has the disadvantage that the content of the data sent from the host machine via the host interface section cannot be seen until it is printed on the printing paper. there were. Therefore, if there are any mistakes in the printed results, you have to correct them and print them again on the printing paper, and then look at the results and if there are any mistakes, you have to make the corrections and print again, which wastes time on corrections. Furthermore, there was the inconvenience of wasting printing paper. [Object of the Invention] An object of the present invention is to improve the inconveniences seen in the conventional example, to enable the operator to print while checking the contents of data through the display, and to save processing time and print speed. An object of the present invention is to provide a printer device that makes it possible to avoid waste of paper.

[Means to solve the problem]

In the present invention, a higher-level interface section receives data transferred from a higher-level device, a central processing section receives and interprets data sent from this higher-level interface section,
It has a video data storage unit that stores data sent from the central processing unit, and a printing unit that prints the data stored in the video data storage unit on printing paper via the central processing unit. There is. A display section for displaying data stored in the video data storage section is provided, and a video data display control section is provided for driving and controlling the display section based on signals from the central processing unit and the video data storage section. We are using this method. This is intended to achieve the above-mentioned purpose.

[For production]

The data to be output is sent from the host machine to the host interface section. The upper interface section transfers the sent data to the central processing section. The central processing unit processes this data and stores it in the video data storage unit at a density that corresponds to the resolution of the print unit. When confirming the sent data, the video data display control section reads the data stored in the video data storage section and controls the display section to display the data.

When outputting, the central processing section transfers the data stored in the video data storage section to the printing section and prints it on printing paper. [Embodiment of the Invention] Hereinafter, an embodiment of the present invention will be described based on FIGS. 1 and 2. In the embodiment shown in FIG. 1, there is a higher-level interface unit l that receives data transferred from a higher-level machine (not shown), and a central unit that receives and interprets the data sent from this higher-level interface unit l. A processing section 2, a video data storage section 3 that stores data sent from the central processing section 2, and a printing paper (Fig. (not shown)
It has a printing section 4 that prints on the image. A display section 5 for displaying data stored in the video data storage section 3 is provided, and a video data display for driving and controlling the display section 5 based on signals from the central processing section 2 and the video data storage section 3. Equipped with control unit 6. Furthermore, a command is sent to the central processing unit 2 to turn on the video data display control unit 6. A first DIP switch 10A for switching off and a second DIP switch 10B for instructing erasure of data stored in the video data storage section 3 are provided. The video data display control section 6 will be described in further detail based on FIG.

The video data display control unit 6 includes a CPU interface unit l1 that receives data from the central processing unit 2, and a CPU interface unit l1 that receives data from the central processing unit 2.
A timing control unit l2 operates in response to a startup command from the central processing unit 2 received by the U interface unit 11, and receives data stored in the video data storage unit 3 (
Sends data to the display section 5 together with the VDS interface 14) (DSP interface 15). and a reduction control section 16 that reduces the size of the image.

Next, the operation will be explained.

The central processing unit 2 appropriately processes output data sent from a host machine (not shown) to the host interface unit 1 and stores it in the video data storage unit 3 at a density that corresponds to the resolution of the printing unit 4. The data in the video data storage section 3 is normally transferred to the printing section 4 via the central processing section 2 and printed on printing paper (not shown).

At this time, if the first dip switch IOA is on, the central processing section 2 puts the video data display control section 6 into an operating state. Then, in the video data display control section 6, the second
As shown in the figure, a startup command is transmitted from the central processing unit 2 via the CPU interface unit 11, the timing control unit 12 is driven, and data is transferred from the video data storage unit 3 to the video interface unit l3 via the VDS interface 14. is loaded into. This data is then reduced by the reduction control unit 16 to adapt to the resolution of the display unit 5, and is again transferred from the video interface unit 13 to the display unit 5 via the DSP interface 15 to display the data to be printed. do.

Moreover, if the l-th dip switch IOA is off,
Since the central processing section 2 does not drive the video data display control section 6, no print data is displayed.

When the second dip switch IOB is on, the central processing unit 2 erases the contents of the video data storage unit 3 and prepares for the next data to be sent.

〔Effect of the invention〕

As described above, in the present invention, a display unit is provided that displays data stored in a video data storage unit, and this display unit is controlled based on signals from the central processing unit and the video data storage unit. It is equipped with a video data display control section. Therefore, after storing the data from the host machine as video data, the operator can
You can check and correct any errors in the data.
This allows you to quickly check the data, and
It is possible to provide an unprecedented and excellent printer device that can avoid wasting paper because confirmation can be performed without printing on printing paper. 3. DETAILED DESCRIPTION OF THE INVENTION FIG. 1 is a block diagram showing one embodiment of the present invention, and FIG. 2 is a structural diagram showing details of a video data display control section. 1... Upper interface section, 2...
Central processing unit, 3...Video data storage unit, 4.
. . . Printing section, 5 . . . Display section, 6 . . . Video data display control section.

Claims (1)

[Claims] (1) A higher-level interface unit that receives data transferred from a higher-level machine, a central processing unit that receives and interprets data sent from this higher-level interface unit, and a data unit that receives data sent from this central processing unit. a video data storage section that stores the data stored in the video data storage section; and a printing section that prints the data stored in the video data storage section onto printing paper via the central processing section; A printer device comprising: a display section for displaying data; and a video data display control section for driving and controlling the display section based on signals from the central processing unit and the video data storage section.