JPH04133765A - Serial printer - Google Patents

Abstract

PURPOSE:To conduct printing by necessary minimum line feed actions to shorten a printing time by providing a data storage part for storing input data for several lines inside a printer and a part for rearranging the data in the printing order on paper. CONSTITUTION:A data input edition part 1 edits data inputted from a host device and forms printing data for one line. A data storage part 2 stores the formed printing data and the vertical printing position on paper, e.g. on which line the data should be printed. A data rearranging part 3 checks the vertical relation of the printing positions for the printing data for several lines stored in the data storage part 2 and rearranges the data so that the data can be printed orderly from those for the first printing line. If the data inputted from the host device to the data storage part 2 in the order of a character string 6 for the first line, a character string 7 for the third line, and a character string 8 for the second line, the character string 8 for the second line and the character string 7 for the third line are replaced with each other, and the data storage part 2 is controlled so as to cancel a backward line feed action.

Description

DETAILED DESCRIPTION OF THE INVENTION [Field of Industrial Application] The present invention relates to a serial printer used in electronic computers, data terminals, copy transmission devices, copying machines, and the like.

[Conventional technology]

Conventional serial printers include inkjet printers, wire tod printers, thermal transfer printers, etc., and these serial printers sequentially print print data received from a host device from the first row to the lower rows in the order in which they are received. When the printing position is below the current head position, that is, on a lower line, a line feed is performed in the forward direction and printing is performed. Conversely, if the next line to be printed is above the already printed line, the line is inserted in the opposite direction and printed. In this way, the input data is printed on the paper in the order of the lines. It looks like this.

In the inkjet printer, as shown in FIG. 3, the paper 13 is sequentially moved line by line in the direction of the arrow in the figure by a roller 15 along a platen 14.

The printing was performed by spraying ink onto the upper part of the paper presser 12 using the head 10, and printing at the position of the ink 11 after printing.

Therefore, when starting a line feed in the forward direction, the ink 11 after printing moves upward; however, when starting a line feed backwards to the top of the paper, the paper presser 12 presses the undried printed area of the previous line. Therefore, it was necessary to wait for time to dry or wait for drying by a heater.

[Problem to be solved by the invention]

This conventional serial printer prints input data in the order of input lines, so when printing above the current head position, a reverse feed operation occurs and the printing time increases. There is a drawback that it becomes

Further, there are drawbacks in that reverse line feed cannot be performed until the ink in the undried printed area is dried, and printing time becomes longer because reverse line feed is performed after drying with a heater or the like.

[Means to solve the problem]

The serial printer of the present invention is a serial printer that prints input print data line by line, and includes a data input editing means that inputs data from a host device and creates line data, and a data input/editing means that inputs data from a host device and creates line data, and a data input/editing means that inputs data from a host device to create line data. a data storage means for storing the stored data in the order of the printing unit 1, a data rearrangement means for rearranging the stored data in the order of the printing unit 1, and a storage range control for outputting the rearranged data as print data outside a certain print storage range. and an output means for outputting print data onto paper.

〔Example〕

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

FIG. 1 is a block diagram showing one embodiment of the present invention, and FIG. 2 is an explanatory diagram of this embodiment. In FIG. 1, a data input editing section 1 edits data input from a host device and creates one line of print data. The data storage unit 2 stores the created print data and the printing position in the vertical direction of the paper, for example, on which line to print.The data rearrangement unit 3 is stored in the data storage unit 2. The vertical relationship of the print positions of several lines of print data is checked, and each print line is rearranged so that it can be printed in order from the top.

That is, as shown in FIG. 2, if the data input from the host device to the data storage unit 2 is in the order of print 6 on the first line, print 7 on the third line, and print 8 on the second line, , the data storage section 2 is controlled so as to replace the print 8 on the second line with the print 7 on the third line and eliminate the reverse line feed operation.

The storage range control unit 4 always manages the J self-storage range 9 shown in FIG. 2, so as not to store more than the last line of the paper, for example. When such line feed and print data outside the certain range are recognized, this data is temporarily saved in the output unit 5. Based on the data, the output unit 5 executes line feed and printing on the next prepared paper, for example.

〔Effect of the invention〕

As explained above, the present invention includes a data storage section that stores several lines of input data inside the printer, and a section that rearranges the lines in the order in which they are printed on paper. This has the effect of shortening the printing time.

In particular, a reverse correction operation such as in an inkjet printer can prevent deterioration in print quality due to rubbing the undried print area with a paper presser and staining the paper or the like. Furthermore, since there is no waiting time for drying of the undried printed portion, there is an effect that the printing time can be shortened.

[Brief explanation of the drawing]

FIG. 1 is a block diagram of an embodiment of the present invention, FIG. 2 is an explanatory diagram of this embodiment, and FIG. 3 is a configuration diagram of the main parts of a conventional serial printer. 1...Data input section, 2...Data storage section, 3...
・Data sorting unit, 4...Storage range control unit, 5...
- Output section, 6...Printing on the 1st line, 7...Printing on the 3rd line, 8...Printing on the 2nd line, 9...Storage range.

Claims (1)

[Claims] In a serial printer that prints input print data line by line, data input editing means inputs data from a host device and creates line data, and data storage means stores print data for several lines inside the printer. , a data rearrangement means for rearranging the stored data in the order of printing positions, a storage range control means for outputting the rearranged data as print data outside a certain print storage range, and outputting the print data on paper. A serial printer characterized in that it is equipped with an output means.