JPH04105980A - Serial printer - Google Patents

Abstract

PURPOSE:To prevent the direct printing to a platen having no printing paper by determining a printing range in left and right directions on the basis of the output of a paper detection sensor and the data from a carrier lateral feed control part controlling the lateral feed operation of the carrier. CONSTITUTION:Paper 3 is sucked in a printer along a left guide 5. After the paper 3 is sucked, a carrier l is moved in left and right directions by the lateral feed control part 7 provided to a printing control art 9 until the presence of the paper 3 is detected by the paper detection sensor (PE sensor) 2 mounted on the carrier l. A printing range setting part 6 sets a printing range on the basis of the data related to the presence of the paper from the PE sensor 2 and the position data from the lateral feed control part 7 and informs the set printing range to a printer control part 8. The printer control part 8 applies printing to the paper 3 present between a platen 4 and the carrier l when the printing data from a host apparatus is within the printing range and prints only the data within the printing range when the printing data exceeds the printing range and the data out of the printing range is processed so as to be disposed, printed on the next line or stored.

Description

DETAILED DESCRIPTION OF THE INVENTION [Field of Industrial Application] The present invention relates to a serial printer, and particularly to a serial printer that prints while moving a carrier left and right.

[Conventional technology]

Conventional serial printers that print while moving the carrier from side to side do not have sensors to detect the left and right edges of the printing paper, and therefore there is no possibility that the printing paper may be present at the position where the carrier has moved. It has not yet been determined whether or not there are any.

[Problem to be solved by the invention]

As mentioned above, conventional serial printers do not have a means to detect the left and right edges of printing paper, so the software of the host device does not send print data that matches the size of the printing paper. In some cases, the disadvantage is that printing is performed directly on the platen 2 when there is no printing paper.

[Means to solve the problem]

The serial printer of the present invention has a carrier section having a paper detection sensor, and determines the print range in the left and right direction based on the output of the paper detection sensor and information from a carrier traverse feed control section that controls the lateral feed operation of the carrier section. It is equipped with a printing range setting section.

〔Example〕

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

Section 1 (a) and (b) are a plan view and side view showing an embodiment of the present invention, and FIG. 2 is a block diagram showing the configuration of the embodiment shown in FIG.

In FIGS. 1 and 2, the paper 3 is placed on the left side guide 5
is sucked into the printer along the line. After paper 3 is sucked in, carrier 1. Paper detection sensor installed in (
The carrier 1 is moved in the left-right direction by the horizontal feed control section 7 provided in the print control section 9 until the PE sensor) 2 detects the presence or absence of paper. The print range setting unit 6 sets a print range based on the information regarding the presence or absence of paper from the PE sensor 2 and the position information from the lateral feed control unit 7, and reports the set print range to the printer control unit 8. If the print data from the host device is within the above printing range, the printer control unit 8 prints it on the paper 3 located between the platen 4 and the carrier 1, and if it exceeds the printing range, it prints the data within the printing range. Data outside the printing range is discarded, printed on the next line, or held on hold.

[Effects of the Invention] As described above, the serial printer of the present invention includes a paper detection sensor on the carrier, and uses the output of the paper detection sensor and information from the carrier traverse feed control section that controls the traverse feed operation of the carrier. By determining the printing range in the left and right direction, it is possible to prevent printing directly on the printing paper or platen.

[Brief explanation of the drawing]

FIGS. 1A and 1B are a plan view and a side view showing an embodiment of the present invention, and FIG. 2 is a block diagram showing the configuration of the embodiment shown in FIG. ]...-Carrier, 2...-Paper detection sensor (PE sensor), 3--Paper, 4--Platen, 5--Left side kite, 6... - Printing range setting section, 7...- Horizontal feed control section, 8...- Printer control section, 9...- Printing control section.

Claims (1)

[Claims] A carrier section having a paper detection sensor, and a printing range setting section that determines a printing range in the left and right direction based on the output of the paper detection sensor and information from a carrier lateral feed control section that controls lateral feeding operation of the carrier section. A serial printer characterized by: