JPH02204068A - Page-based perfecting page printer - Google Patents

Abstract

PURPOSE:To save the time of operator and to save the sheet by arranging perfecting print function at the side of a printer body. CONSTITUTION:A carrying circuit 12 carries print data judged through a print recognition circuit 13 to print buffers corresponding to front and rear thermal heads. Upon provision of print data from a host unit after turn-on of printer power source, the data are stored in a receiving buffer 2. When the receiving buffer 2 is fulfilled, the print recognition circuit 13 recognizes a break of page based on the content of the receiving buffer 2, and the carrying circuit 12 transfers the content of the receiving buffer 2, page by page, to print buffers (A) 3 and (B) 4. A print starting circuit 11 detects provision of data to the print buffers (A) 3 and (B) 4 and executes printing.

Description

DETAILED DESCRIPTION OF THE INVENTION [Field of Industrial Application] The present invention relates to a page-by-page non-impact printer having a function of simultaneously printing data on both sides of paper.

[Conventional technology]

Conventionally, this type of printer was automatically capable of printing on only one side.

[Problem to be solved by the invention]

The conventional printers of this type mentioned above can only print on one side, so if you want to print on both sides, the operator has to intervene and flip each sheet one by one. However, this method has the drawbacks of a large burden on the operator and a large time loss.

[Means to solve the problem]

The configuration of the page-by-page duplex printing printer of the present invention is a non-impact printer with a thermal head, and includes a reception buffer that receives print data from a host device, and a print recognition circuit that recognizes page breaks based on the contents of this reception buffer. , a transfer circuit that transfers the print data determined by the reception buffer and the print recognition circuit to print buffers corresponding to the thermal heads on the front and back sides of the paper, and a transfer circuit that detects that the print data is input to the print buffer and prints the data. and a printing start circuit that starts the printing.

〔Example〕

Next, the present description will be explained with reference to the drawings.

FIG. 1 is a block diagram mainly showing a control section of an embodiment of the present invention, and FIG. 2 is a flowchart showing the flow of control in FIG. 1.

In Figure 1, 1 is the main memory, 2 is the receiving buffer, 3 is the print buffer (A>, 4 is the receiving buffer (B), 5 is c
pu, 1] is a print recognition circuit, 12 is a transfer circuit, and 13 is a print activation circuit.

The operation will be described below with reference to FIGS. 1 and 2.

After the printer power is turned on (Stella S1), when print data is input from the host device, the data is stored in the reception buffer 2 (step S2), and when the printer is turned on (step S3), the print recognition circuit 13 inputs the print data. - Then, the page break is recognized from the contents of the reception buffer 2, and the transfer circuit 12
Print buffer (A) 3 and print buffer (B) by
4, the contents of receive buffer 2 are transferred page by page (
Step S4).

The print starting circuit 11 detects that data is input to the print buffer (A) 3 and the print buffer (B) 4, and executes the print process (step S6).

〔Effect of the invention〕

As described above, the present invention has the effect of saving the operator's labor and paper consumption by having a double-sided printing function on the printer main body side.

[Brief explanation of the drawing]

FIG. 1 is a block diagram mainly showing the control section of the double-sided printing printer of the present invention, and FIG. 2 is a flowchart showing the control flow of FIG. 1. 1... Main memory, 2... Receive buffer, 3...
・Print buffer A, 4...Print buffer B, 5...
CPU, 11... Print recognition circuit, 12... Transfer circuit, 13... Print starting circuit.

Claims (1)

[Claims] In a non-impact printer with a thermal head, a reception buffer receives print data from a host device;
A print recognition circuit that recognizes page breaks based on the contents of the reception buffer, and a transfer that transfers the print data determined by the reception buffer and the print recognition circuit to print buffers corresponding to the thermal heads on the front and back sides of the paper. circuit and
A double-sided printing printer for each page, comprising a print starting circuit that detects input to the print buffer and starts printing.