JPS61246082A - Printing-stopping device - Google Patents

Abstract

PURPOSE:To simplify the titled device and reduce the cost of the device, by a construction wherein a part of a paper presence/absence detecting means and a part of a cover open/closed state detecting means are disposed adjacent to each other, and a printing stopping controlling means is used in common for both means. CONSTITUTION:Where a cover 5 is open and a paper 9 is not present, both of a paper presence/absence detecting lever 2 and a cover open/closed state detecting lever 1 shield a light-detecting part of a photo-interrupter 4, so that printing is not conducted. Where the cover 5 is closed but the paper 9 is absent, the lever 2 shields the light-detecting part of the photo-interrupter 4, so that printing is not conducted. Where the paper 9 is present but the cover 5 is open, the lever 1 interrupts the light-detecting part of the photo-interrupter 4, so that printing is not conducted. Where the cover 5 is closed and the paper 9 is present, none of the lever 2 and the lever 1 interrupt the light-detecting part of the photo-interrupter 4, so that printing can be conducted. Accordingly, it is possible to simplify the device, reduce the cost and facilitate assembly and repair of the device.

Description

DETAILED DESCRIPTION OF THE INVENTION Field of Industrial Application The present invention relates to a printer used in a personal computer or the like.

BACKGROUND OF THE INVENTION Conventionally, this type of printer 8 has a print stop device that includes:
As shown in FIG. 6, two devices, a device 25 for detecting the presence of paper (empty) and a device 10 for detecting opening/closing of a cover, are installed separately at separate locations. As shown in FIG. 1, the paper presence/absence detection device 25 has means for detecting the presence or absence of paper 9 on the paper guide 3 of the printer 8, and means for stopping the printing operation of the printer 8 if there is no paper 9. The cover opening/closing detection device 1o includes a means for detecting opening/closing of a cover 5 that covers the printing section 12 of the printer 8, which includes the platen 7, paper guide 3, etc., in an openable/closable manner;
If the printer 8 is opened, the printing operation of the printer 8 is stopped.

Problems to be Solved by the Invention Both the paper presence/absence detection device 25 and the cover opening/closing detection device 10 have the same function of not starting printing or stopping printing at the start of printing (printing) or during printing. However, as shown in FIG. 6, since separate detection devices are provided, separate means for stopping are required, and the number of parts, installation location, and installation require a large number of man-hours, making it complicated and expensive.

Means for Solving the Problems The means of the present invention for solving the above-mentioned problems include means 2 for detecting the presence or absence of paper such as a lever as shown in FIGS. 1 to 5.
and a cover opening/closing detection means 1 are arranged partially adjacent to each other, and a print stop control means 4 such as a photo interrupter is arranged between both the paper presence/absence detection means 2 and the cover opening/closing detection means 1 in the adjacent part. did.

When either the working paper presence/absence detection means 2 or the cover opening/closing detection means 1 blocks the light detection section of the print stop control means 4, such as a 7-way interrupter, a control signal to stop printing is given to the print section.

Embodiment Hereinafter, one embodiment of the present invention will be described in detail based on the drawings.

The lever 2 of the paper presence/absence detection means has an intermediate portion supported by the paper guide 3 via a shaft 11 so as to be rotatable by a predetermined angle, and the intermediate portion of the lever 1 of the cover opening/closing detection means is supported by the shaft 11 so as to be rotatable by a predetermined angle. installed as possible. One end 13 of the paper detection lever 2 extends from an opening 14 of the paper guide 3 to the upper surface of the paper guide 3. The other end 15 extends to print stop control means 4 such as a photo interrupter. As shown in FIG. 1.2, when there is no paper 9 on the paper guide 3, the other end 15 of this lever 2
It was moved so as to block the light given to the light detection part of the third part.
．． As shown in Figure 4, when there is a paper 9, the other end 15 is moved away from the photointerrupter 2 and the photointerrupter 4 so as to apply light to the photodetection section of the photointerrupter 4. When the light being transmitted is blocked, a control signal is given to the printing section control means (circuit) to stop the printing operation of the printing section 12. The photo interrupter 4 is connected to the other end 15 of the lever 2.
When is moved to the position shown in Fig. 1.2, the light emitting part and the light receiving part are arranged so that the other end 15 is located in the middle, and the other end 15 is moved to the position shown in Fig. 1g1.2. Then, the light from the light receiving section is blocked by the other end 15 and does not reach the light receiving section.

When the other end 15 is moved to the position shown in FIG. 4, light from the light emitting section reaches the light receiving section.

The lever 1 of the cover opening/closing detection means has one end 16 extending to a position where the cover 5 is closed on the upper surface of the print section 12,
The other end 17 extends to the photointerrupter 4. When the cover 5 is opened as shown in Fig. 1.3, the other end 17 blocks the light given to the photodetector section of the photointerrupter 4, and when it is closed as shown in Fig. 2.4, It is moved so that light is applied to the photointerrupter 4.

The cover 5 is rotated around one end 18, and the print section 12
It is opened and closed when inspecting the printing section 12 or loading an ink ribbon into the printing section 12.

As shown in FIG. 1, when the cover 5 is open and no paper 9 is inserted, the paper presence detection lever 2 and the cover opening/closing detection lever 1 both block the light detection section of the photointerrupter 4, so printing is not performed. As shown in FIG. 2, even if the cover 5 is closed, there is no paper 9 inside, so the paper presence/absence detection lever 2 blocks the light detection section of the photointerrupter 4, so that no printing is performed. As shown in FIG. 3, even if the paper 9 is inside, since the cover 5 is open, the cover opening/closing detection lever 1 blocks the light detection section of the photointerrupter 4, so that no printing is performed.

As shown in Figure 4, when the cover 5 is closed and the paper 9 is inside, neither the paper presence detection lever 2 nor the cover opening/closing detection lever 1 are blocking the light detection part of the photo interrupter 4, so printing is possible for the first time here. becomes.

Effects of the Invention By arranging a part of the paper presence/absence detection half-recessed part and the cover opening/closing detection means adjacent to each other as shown in FIGS. Simplification and low cost can be achieved. Furthermore, assembly, repair, etc. can be centralized, resulting in good work efficiency.

[Brief explanation of the drawing]

FIG. 1 is a sectional view showing a state in which the cover 5 of an embodiment of the present invention is open and vapor 9 is not contained, and FIG. 2 is a state in which the cover 5 of FIG. 1 is closed and vapor 9 is not contained. FIG. 3 is a sectional view showing the state in which the cover 5 in FIG. 1 is open and vapor 9 is contained, and FIG. 4 is a sectional view showing the state in which the cover 5 in FIG. 1 is closed and vapor 9 is contained. FIG. FIG. 5 is a left side view of FIG. 1. FIG. 6 is a perspective view of a conventional device. l is cover open/close detection means, 2 is vapor presence/absence detection means, 3
4 is a vapor guide, 4 is a print stop control means such as a photo interrupter, 5 is a cover, 6 is a platen holder, 7 is a platen, 8 is a printer main body, 9 is a vapor, 10 is a cover opening/closing detection device, and 11 is a shaft.

Claims (1)

[Scope of Claims] A printer device used for a personal computer or the like, comprising a paper presence/absence detection means for detecting the presence or absence of paper supplied to a print section of the printer device, and a cover that covers the print section of the printer device in an openable/closable manner. cover opening/closing detection means for detecting opening/closing of the print section; A print stop device comprising a common print stop control member that provides control to stop the printing operation of the print stop device.