JPH0499665A - Printer - Google Patents

Abstract

PURPOSE:To realize easy high speed scanning and reading through utilization of a bar code reader provided with an optical head, when print data are inputted to a computer, by providing a ROM storing a microprogram for converting a received control code into a bar code and executing printing. CONSTITUTION:At first, a switch for switching received data through artificial operation to dump printing is set. When data are received through an external interface section 2, a received data dump print subroutine in a microprogram stored in a ROM 4 is executed. A microprocessor 1 then interprets the received data as numerical values which are then converted into a bar code and recorded, as an image data, in a RAM 5. When the data exceeds the capacity of the RAM 5 or when a forcible print command is inputted, data on the RAM 5 are transferred to a print section 6 and printed.

Description

DETAILED DESCRIPTION OF THE INVENTION [Field of Industrial Application] The present invention relates to a printer, and particularly to a printer having a received data dump printing function.

[Conventional technology]

Conventionally, when this type of printer receives data sent from a host device, it detects the state of switches, etc. that were set before receiving the data, and then if the printer is set to perform dump printing of the received data, The received data is not interpreted as a control code, but is expressed numerically.

[Problem to be solved by the invention]

In the conventional printer described above, the received data is printed as a numerical representation, so when inputting the output received data as a new data file to an electronic computing device other than the device that sent it, each There is no other way but to input the numerical value manually, and there is a drawback that there is a high possibility of erroneous input.

[Means to solve the problem]

The printer of the present invention receives data sent from a host device as a control code, and selects the printing environment and printing characters.The printer expresses the received control code by combining differences in line width and line spacing. A read-only memory (hereinafter abbreviated as ROM) stores a microprogram for converting into a bar code code and outputting it.

)have.

〔Example〕

Embodiments of the present invention will be described based on the drawings.

FIG. 1 is a block diagram of a printer according to an embodiment of the present invention.

In FIG. 1, the printer of this embodiment includes a microprocessor 1, an external interface section 2, an operation panel section 3,
It is composed of a ROM 4, a RAM (readable/writable memory) 5, and a printing section 6.

Next, its operation will be explained.

First, before data is transmitted from the host device, a switch is manually set on the operation panel 3 to change the received data to dump printing.

When data is transmitted from a host device (not shown) via the external interface unit 2, the microprocessor 1 processes the received data by executing the received data dump print subroutine in the microprogram stored in the ROM 4. After interpreting it as a numerical value and converting it into a barcode, the barcode is recorded on the RAM 5 as image data.

The received data are sequentially converted into barcodes until the data recorded on the RAM 5 exceeds the capacity of the RAM 5 or until a forced printing command is input by the operator or an operation on the operation panel section 3.

When the data converted into a bar code exceeds the capacity of the RAM 5 or when a forced printing command is input by operating the operation panel section 3, the data on the RAM 5 is transferred to the printing section 6 and printed.

〔Effect of the invention〕

As described above, according to the present invention, a received data dump is printed in barcode representation by having a ROM in which a microprogram for converting data transmitted from a host device into a barcode is recorded.

When inputting this barcode-expressed print data as a new data file into a computer other than the device that sent the received data, a barcode reader equipped with an optical head can be used, making it easy and fast. It has the effect of being able to be scanned and read.

[Brief explanation of the drawing]

FIG. 1 is a block diagram of a printer according to an embodiment of the present invention. DESCRIPTION OF SYMBOLS 1...Microprocessor, 2...External interface unit, 3...Operation panel unit, 4...ROM (read-only memory), 5...RAM (read/write memory), 6...・Printing section.

Claims (1)

[Claims] In a printer that receives data transmitted from a host device as a control code and selects a printing environment and printing characters, the received control code is combined with differences in line width and line spacing. 1. A printer characterized by having a read-only memory storing a microprogram for converting into a barcode symbol and outputting it for printing.