JPH04347724A - Printer buffer - Google Patents

Abstract

PURPOSE:To display the content of a printer buffer and to prevent a transferred content from errorneously being cleared. CONSTITUTION:When a series of data are stored in a data buffer 5, a data input completion detection part 6 detects the completion of storage. Then, an instruction for storing one line of printing data, data for 20 bytes, for example, in a display data buffer 8 is given to a display data fetch control part 7 by a data buffer 5. The display data buffer 8 gives and displays stored data in a display part 9. Then, a printer 3 prints the content of the data buffer 5 after the display of the display part 9 is recognized. Then, it is cleared when it is unnecessary data when it is recognized.

Description

[Detailed description of the invention]

0001

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a printer buffer, and more particularly to a printer buffer that temporarily stores a series of data output from an information processing device for printing by a printer.

0002

2. Description of the Related Art Conventionally, this type of printer buffer temporarily holds data output from an information processing device, and outputs the data to a printer according to an instruction from the information processing device or an operator.

0003

[Problems to be Solved by the Invention] The conventional printer buffer described above does not have the function of displaying the contents when it holds transferred data, so the operator does not know what data is being held. There are disadvantages that when attempting to clear data that was transferred by mistake, other data may be cleared, and that the retained data cannot be determined until it is printed out.

0004

[Means for Solving the Problems] The printer buffer of the present invention is a printer buffer that temporarily stores a series of data output from an information processing device in order to be printed by the printer. a data input completion detection section that detects that the input is completed; a display data retrieval control section that receives the detection output of the data input completion detection section and extracts a predetermined range of data from the storage section; The display data buffer includes a display data buffer that stores data retrieved by a data retrieval control section, and a display section that displays the data stored in the display data buffer.

[0005]

DESCRIPTION OF THE PREFERRED EMBODIMENTS Next, the present invention will be explained with reference to the drawings.

FIG. 1 is a block diagram of one embodiment of the present invention. The embodiment shown in FIG. 1 is composed of an information processing device 1, a printer buffer 2, and a printer 3. printer buffer 2
The printer buffer control section 4, the data buffer 5, the data input completion detection section 6, the printer buffer control section 4, the data buffer 5, the data input completion detection section 6, the display data retrieval control section 7, the display data buffer 8, and the display section 9 It consists of

In the above configuration, when data to be printed is normally sent from the information processing device 1, this output data is stored in the data buffer 5 via the printer buffer control section 4. The data input detection unit 6 detects completion of data input when all output data is stored in the data buffer 5. When the completion of data input is detected, the display data retrieval control unit 7 causes the data buffer 5 to copy the first line of the output data to the display data buffer 8. The size of the display data buffer 8 is, for example, 20 bytes. The display data buffer 8 displays the stored contents as they are on the display section 9.
send it to be displayed.

[0008] The contents held in the printer buffer 2 are sent to the printer 3 and printed out according to an operator's instruction when the printer 3 becomes empty. Further, the contents of the data buffer 5 and display data buffer 8 in the printer buffer 2 are changed to the printer buffer 2 (not shown) after the operator confirms the contents printed by the printer 3.
It can be erased using the clear button provided on the screen.

[0009]

As described above, according to the present invention, by displaying the first line of data to be transferred to the printer buffer and printed on the printer buffer itself, the contents can be known without printing out. This has the effect of preventing the printer operator from erroneously determining whether data in the buffer is valid data or invalid data.

[Brief explanation of drawings]

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

[Explanation of symbols]

1 Information processing device 2 Printer buffer 3. Printer 4 Printer buffer control section 5 Data buffer 6 Data input completion detection section 7 Display data retrieval control section 8 Display data buffer 9 Display section

Claims (1)

[Claims] Claim 1: In a printer buffer that temporarily stores a series of data output from an information processing device in order to be printed by a printer, data input detects that input of a series of data to a built-in storage unit is completed. a completion detection section; a display data retrieval control section for receiving a detection output of the data input completion detection section and extracting a predetermined range of data from the storage section; and storing the data retrieved by the display data retrieval control section. 1. A printer buffer comprising: a display data buffer for displaying data; and a display section for displaying data stored in the display data buffer.