JPH03246088A - Medium right margin detection apparatus of printer - Google Patents

Abstract

PURPOSE:To prevent the occurrence of the breakage of the pin of a printing head and the missing of receiving data, in a printer using printing medii different in size, by detecting the right margin of a printing medium to judge whether or not printing is possible and performing automatic printing and automatic feed. CONSTITUTION:A printing medium 1, a left-hand stop surface 2, a right-hand stop surface 3, a printing head 4 performing printing, a platen 5 holding a constant distance between the printing head 4 and the printing medium 1 and a sensor 6 detecting the right margin of the printing medium 1 are mounted. The printing medium 1 is sent to the position of the platen 5, that of the printing head 4 and that of the sensor 6 by a feed part 8, a printing processing part 9 and a right margin detection part 10 and it is judged whether or not printing can be applied to the printing medium by a judging part 11 and, when printing is impossible, unprinted receiving data is stored in a data memory part 12 and printing processing is executed by the printing processing part 9 and, thereafter, the printing medium 1 is fed by the feed part 8 to continue the printing processing of the data stored in the data memory part 12.

Description

[Detailed Description of the Invention] [Field of Industrial Application] The present invention relates to a method for detecting the right edge of a printer in which the left edge of a print medium is used, and particularly to detecting the right edge of the medium in a printer that uses print media of different sizes. Regarding the method.

[Conventional technology]

The conventional media right edge detection method for printers that use various print media of different sizes is a method that prints until the set right edge position is reached regardless of the size of the print medium that has been sucked in, regardless of the presence or absence of the print medium. It becomes.

[Problem to be solved by the invention]

As mentioned above, the method for detecting the right edge of the medium in conventional printers is a method that sets the right edge regardless of the size of the actually sucked medium, so printing can be performed regardless of the presence or absence of the print medium. Therefore, there are disadvantages in that the pins of the print head may be bent, and the received data may be omitted in the actual printing result.

[Means to solve the problem]

The medium right edge detection method of the printer of the present invention is intended to solve the above-mentioned problem, and detects the right edge of the medium corresponding to the inhaled print medium, automatically prints, and then continues with a line feed. By processing the received data, it is possible to prevent the pins of the print head from breaking and also to prevent the data from being omitted from the received data.

That is, the media right edge detection method of the printer of the present invention is applicable to a printer that prints on print media of various sizes, when the conveyance means for conveying the print medium and the right edge of the print medium are within the printable area. a detection means for detecting whether or not there is a print medium; a determination means for determining whether printing is possible when the detection means detects the right edge of the print medium; and a determination means for determining whether printing is possible when the determination means determines that printing is not possible. and a printing means that performs a return operation to print the stored data after storing the data in the storage means.

〔Example〕

Next, embodiments of the present invention will be described with reference to the drawings.

FIG. 1 is a sectional view showing an embodiment of the present invention.

The embodiment shown in FIG. 1 includes a print medium 1, a left abutment surface 2, a right abutment surface 3, and a print head 4 for printing.
It is configured to include a platen 5 that maintains a constant distance between the print head 4 and the print medium 1, and a sensor 6 that detects the right end of the print medium 1.

FIG. 2 is a block diagram showing an example of a circuit for controlling the operation of the embodiment shown in FIG.

As shown in FIG. 2, a transport unit 8 that transports the print medium
, a print processing unit 9 that performs print processing, a right edge detection unit 10 that detects the right edge of the print medium, a determination unit 11 that determines print processing and conveyance, and data that stores received data after print processing determination. It has a storage section 12 and a control section 7 that controls these overall operations. Print media 1
is sent to the positions of the platen 5, print head 4, and sensor 6 by the conveyance section 8, print processing section 9, and right edge detection section 10, and is judged by the judgment section 11 whether or not it is possible to print on the print medium. If there is, unprinted received data is stored in the data storage section 12, and the print processing section 9 executes the printing process, and then the printing medium 1 is conveyed by the conveyance section 8, and the printing process of the data stored in the data storage section 12 is performed. continue. By using the method described above, the right edge of the printing medium is detected and the printing process is continued by performing automatic printing and automatic transport.
To prevent pins of the print head from breaking and to prevent received data from being dropped.

〔Effect of the invention〕

As explained above, the media right edge detection method of the printer of the present invention detects the right edge of the print medium in a printer using print media 1 of different sizes, and then determines whether printing is possible or not, and performs automatic printing and automatic transport. By doing this, it is possible to prevent the pins of the print head from breaking and to prevent the received data from being omitted.

[Brief explanation of drawings]

FIG. 1 is a sectional view showing one embodiment of the present invention, and FIG.
FIG. 2 is a block diagram illustrating an example of a circuit for controlling the operation of the illustrated embodiment. 1...Print medium, 2...Abutment surface, 4
...Print head, 5...Platen, 6
...Sensor, 7...Control section, 8...
...Conveyance section, 9...Print processing section, 1o...
... Right edge detection section, 11 ... Judgment section, 12 ...
...Data storage section.

Claims (1)

[Claims] In a printer that prints on print media of various sizes, a conveying means for transporting the print medium, a detection means for detecting whether or not the right end of the print medium is within a printable area; determining means for determining whether printing is possible when the detecting means detects the right end of the printing medium; storage means for storing data to be printed when the determining means determines that printing is not possible; and storage means for storing the data to be printed. 1. A medium right edge detection system for a printer, comprising: printing means for printing the stored data by performing a return operation after storing the stored data in the means.