JPH01120378A - Printer - Google Patents

Abstract

PURPOSE:To enable printing action even when a canopy is open by turning a line switch for a printer ON while pressing at least one switch on the operating panel of a printer. CONSTITUTION:An output from a magnet sensor 2 is at high level when a canopy 3 is closed, as a magnet 1 approaches the magnet sensor 2. In the meantime, when the canopy is opened, the output of the magnet sensor 2 is at low level, as the magnet 1 is separated from the magnet sensor 2. Normally, the control part of a printer monitors an output from the magnet sensor 2, and when the output is at high level, the printer is controlled in such a manner that the printer can perform a printing action. When printing paper is loaded on the printer, and a power supply switch for the printer is turned ON while 'printing enable' switch 5 and 'feed page' switch 6 on the operating panel 11 are pressed simultaneously, the control part always allows the printer itself to perform test printing without monitoring the output of the magnet sensor 2.

Description

DETAILED DESCRIPTION OF THE INVENTION [Field of Industrial Application] The present invention relates to a printer configured such that a printing operation cannot be performed when a printing section cover is open.

[Conventional technology]

In order to ensure safety, conventional printers are configured not to perform a printing operation when a cover of a printing section (usually referred to as a canopy) is open.

[Problem that the invention seeks to solve]

As mentioned above, conventional printers detect when the canopy is open and do not print, so when maintenance personnel maintain the printer,
There is a drawback in that it is not possible to open the canopy for inspection and check whether the printing operation is normal (for example, whether the ink ribbon is being fed normally).

[Means for solving problems]

The printer of the present invention is configured to perform a printing operation even when the canopy is open when the power switch of the printer is turned on while pressing at least one switch provided on the operation panel.

That is, the printer of the present invention includes an operation panel having at least one specific switch, a cover that covers the printing section and can be opened and closed, and a power switch that turns the power on and off. When the power switch is turned on while being pressed, the printing section can perform printing operation with the cover open, and the power switch is turned on without pressing the specific switch with the cover open. and a control section that controls the printing section so that it does not perform a printing operation when the printing section is set to .

〔Example〕

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

FIG. 1 is a perspective view showing details of the operation panel of the embodiment shown in FIG.
2 is a perspective view showing the appearance of an embodiment of the present invention, FIG. 3 is a flowchart showing the operation of the embodiment of FIG. 2, and FIG. 4 is a block diagram showing the configuration of the embodiment of FIG. 2. be.

In FIGS. 1 and 2, 1 is a magnet attached to the canopy 3, while 2 is a magnet sensor attached to the middle cover. When the canopy 3 is closed, the magnet 1 is close to the magnet sensor 2, so the output of the magnet sensor 2 is at a "high" level. When the canopy 3 is open, the magnet 1 is away from the magnet sensor 2, so the output of the magnet sensor 2 is "high" level. , its output becomes “low” level.

Normally, the printer control unit 10 (see FIG. 4) monitors the output of the magnet sensor 2, and when the output is at the "hyper level", controls the printer so that it can perform a printing operation. It is controlled so that printing cannot be performed when it is on the roll.

Load the printing paper into the printer and turn on the power switch (not shown) of the printer while pressing the printable switch 5 on the operation panel 11 (see numerals 21 and 22 in FIG. 3),
The control unit 10 constantly receives print data from the host device and sends it to the print mechanism unit 1 without monitoring the output of the magnetic sensor 2.
2 (see FIG. 4) so that printing can be performed (see reference numeral 24 in FIG. 3).

When the printer is turned on while pressing the print enable switch 5 and the page break switch 6 on the operation panel 11 at the same time after loading printing paper into the printer, the control units 21 and 23) shown in FIG. Reference numeral 11 monitors the output of the magnet sensor 2 and controls the printer so that the printer itself can always perform test printing (reference numeral 26 in FIG. 3). Printing is not possible except in the above cases (see numeral 25 or 27 in FIG. 3). By controlling in this way, even if the canopy 3 is open, the printer can perform printing operations as necessary, so maintenance and inspection can be easily performed.

〔Effect of the invention〕

As explained above, the printer of the present invention can print at any time when the canopy is open by turning on the power switch of the printer while pressing one or more switches on the printer's operation panel. This has the effect of making maintenance and inspection easier.

[Brief explanation of the drawing]

FIG. 1 is a perspective view showing details of the operation panel of the embodiment shown in FIG.
2 is a perspective view showing the appearance of one embodiment, FIG. 3 is a flowchart showing the operation of the embodiment of FIG. 2, and FIG. 4 is a block diagram showing the configuration of the embodiment of FIG. 2. 1... Magnet, 2... Magnetic sensor, 3... Canopy, 5... Printable switch, 6... Page break switch.

Claims (1)

[Scope of Claims] A printer comprising an operation panel having at least one specific switch, a cover that can be opened and closed over a printing section, and a power switch that turns on and off the power, wherein the specific switch is pressed. However, when the power switch is turned on, the printing unit can perform a printing operation with the cover open, and the power switch is turned on without pressing the specific switch with the cover open. A printer comprising: a control section that sometimes controls the printing section so that it does not perform a printing operation.