JPH05162419A - Printing apparatus - Google Patents

Abstract

PURPOSE:To make erroneous printing data discernible aurally and visually when such data are received by a printing apparatus. CONSTITUTION:In the case where printing data sent from an upper unit 1 for storage in a memory buffer 2 for printing to be made by operation of a central processing unit 3 are erroneous, notice is made by a buzzer 5, and information of errors is outputted in the form of dump data by operation of a printing mechanism 4 and an operational panel 6.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a printer, and more particularly to a printer having a processing function when an error occurs in print data.

[0002]

2. Description of the Related Art A conventional printer does not have a function of performing processing when erroneous print data is sent from a host device.

[0003]

In the conventional printing apparatus,
When erroneous print data is sent from the host device, the print data must be discarded or an error message must be displayed.

It is an object of the present invention to provide a printing apparatus which can visually and audibly understand erroneous print data when it is received.

[0005]

In order to achieve the above-mentioned object, a printing apparatus according to the present invention is a printing apparatus including a memory buffer, a central processing unit, and an alarm, and the memory buffer is a high-order The central processing unit stores the print data transmitted from the device, and the central processing unit has a function of processing the print data stored in the memory buffer and determining whether the print data is erroneous. The alarm device has a function of issuing a warning sound when the print data is judged to be erroneous by the central processing unit.

When an error occurs in the print data,
The print data remaining in the memory buffer is output as dump data.

Further, the dump data is divided and output for each command.

[0008]

When incorrect data is sent from the host device, a warning sound is issued and dump data is output to clarify which command is incorrect.

[0009]

The present invention will be described below with reference to the drawings. FIG. 1 is a block diagram showing an embodiment of the present invention.

In FIG. 1, the printing apparatus according to this embodiment includes a host apparatus 1 for sending print data, a memory buffer 2 for storing print data, and a central processing unit 3 for processing print data to determine a data flow. , A printing mechanism 4 for receiving print data and printing, a buzzer 5 for notifying a state of receiving erroneous print data by a warning sound, and an instruction from the outside when the dump data is divided into commands and printed. And an operation panel 6 for operating. Also, in the figure,
7 to 13 indicate signal lines.

Next, the operation of the present invention will be described. First, print data from the host device 1 is stored in the memory buffer through the signal line 7.

The stored print data is sent to the signal lines 8, 9,
Input to the central processing unit 3 through 10.

The central processing unit 3 analyzes the input print data and, if the print data is incorrect, inputs the fact to the buzzer 5 through the signal lines 10 and 12. Buzzer 5
Generates a warning sound in response to a command from the central processing unit 3,
Notify that incorrect data has been entered.

The central processing unit 3 issues a command to the printing mechanism 4 at the same time and causes the printing mechanism 4 to print the print data remaining in the memory buffer 2 as dump data.

The operator operates the switch of the operation panel 6 externally when it is determined by the warning sound of the buzzer 5 that the print data is incorrect. As a result, a signal from the operation panel 6 is input to the central processing unit 3 through the signal lines 13, 9 and 10.

Upon receiving the signal from the operation panel 6, the central processing unit 3 puts a space for each command in the print data stored in the memory buffer 2 and writes it in the memory buffer 2 again.

Then, the central processing unit 3 inputs the print data remaining in the memory buffer 2 as dump data to the print mechanism 4 through the signal lines 8, 9 and 11 to perform printing.

[0018]

As described above, according to the present invention, when there is an error in the print data received from the host device, a warning sound is issued to that effect and the dump data is output. This has the effect of making it easier to understand which command is incorrect.

[Brief description of drawings]

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

[Explanation of symbols]

 1 Upper device 2 Memory buffer 3 Central processing unit 4 Printing mechanism 5 Buzzer 6 Operation panel 7-12 Signal line

Claims (3)

[Claims] 1. A printing device including a memory buffer, a central processing unit, and an alarm, wherein the memory buffer stores print data transmitted from a higher-level device, and the central processing unit is a memory. It has a function to process the print data stored in the buffer and to judge whether or not the print data is erroneous. A printing apparatus having a function of emitting a warning sound to a printer. 2. The printer according to claim 1, wherein when an error occurs in the print data, the print data remaining in the memory buffer is output as dump data. 3. The printing device according to claim 2, wherein the dump data is output separately for each command.