JPH02239057A - Recorder - Google Patents

Abstract

PURPOSE:To prevent recording from being conducted with a recording paper sheet kept set at a slackened condition, and prevent a paper jam, by providing an inspection means for the slackening of the rolled portion of the continuous sheet, and a control means prohibiting the operation of the recording means according to an inspection signal. CONSTITUTION:An actuator 18 is usually located toward the upper surface side of a recording paper sheet 6 when there is no slackening at the recording paper sheet 6, and a sensor 17 is in the state of OFF. But when a slackening 6b exists, the sensor 17 falls into the state of ON as it is pushed up by the slackening 6b, and an ON signal is issued. In a case in which the decision of a recording paper sheet slackening being non-existent is made, an usual recording action is conducted. The watch of the output signal of the sensor 17 is made even during recording, and in the case of the decision of the recording paper sheet slackening being existent, the recording action is stopped, and an error indication is conducted.

Description

[Detailed description of the invention] [Industry. Field of Application of L] The present invention relates to a recording device such as a facsimile, a copying machine, or a printer using various methods such as inkjet, wire dot, and thermal transfer, and more specifically, to a recording device that uses a continuous sheet in the form of a roll. .

[Prior Art] For example, there is a conventional recording device as shown in Fig. 6. FIG. 6 is a diagram showing a portion of a facsimile recording device. Reference numeral 1 denotes a recording head, which is rotatably attached to a shaft 4 and is pressed in the direction of the platen roller 2 by a spring 3. When performing recording, the recording head 1 is pressed against the platen roller 2 side via the recording paper 6, and the heating elements provided in the recording head 11 are selectively caused to generate heat according to recording signals from a control section (not shown). This heat generation causes the recording paper 61-. This is done by forming an image on the The platen roller 2 is supported by a platen holder 8, and is driven by a drive mechanism (not shown) to feed and carry out the recording paper 6.

The rolled recording paper 6 is placed on a holder 5 that serves as a storage section for the recording paper 6, and its leading end 6a is pulled out and sent to the Braden roller 2, passing between the recording head l and the platen roller 2 and cut into pieces. A pair of blades 1 1a, ll
b and is drawn out to the outlet l4. The Braden holder 8 is rotatably supported on the main body of the device by a shaft 7, and in this embodiment is constructed integrally with the opening/closing lid 13. Reference numeral 9 is a mounting stand for the recording paper 6, and is located inside the opening/closing lid l3.
Moreover, it is provided at a position opposite to the pedestal 5 integrally with the opening/closing switch M13. Further, its surface is formed into a curved or polygonal shape so that the recording paper 6 can be stored stably, and the recording paper 6 can be smoothly transferred to the receiver h5 by rotation of the opening/closing lid l3. It has been done. IO is a sensor for detecting the presence or absence of the recording paper 6, and the platen roller 2
The sensor is installed on the sun entry side to detect the presence or absence of recording paper 6, generates a signal, and transmits the signal to a control section (not shown). 11 is a cutter for cutting the recording paper 6 into a predetermined length;
It is provided on the ejection side from the intersection of the platen roller 2, which is a recording section, and the recording head l.

The cutter 11 is composed of a pair of blades 11a and tib.
Either one of them is driven to cut the recording paper 6. 13 is an opening/closing lid, which is attached to the platen holder 8 by screw 12.
It is constructed integrally with the shaft 7, and is rotatably provided around a shaft 7. 15 is the main body L cover. 16 is the lower cover of the main unit. [Problem to be solved by the invention] However, in the conventional example, when setting the recording paper, the leading edge of the recording paper is pulled out to pass between the cutters at the leading edge of the recording paper, but in such a case, Sometimes a roll of recording paper is placed on the cradle with the part near the outside sagging (see Figure 6, 6b). When the recording paper 6 is set on the cradle 5 in such a state, in the conventional example shown in No. 65lU, even if the recording paper 6 has a slack portion 6b, it is not visible from the outside and recording continues as it is. When the recording paper 6 is fed out, the entire recording paper 6 rotates, and the slack 6b also rotates in the same way, so that there is always slack at the top. If there is a large amount of slack, as shown in 6C, the slack portion moves to the recording section and gets stuck between 5a and 9a forming the guide section for the recording paper 6, causing a problem of paper jams. Currently, it is difficult to easily remove this slack mechanically, and the only way to completely remove the slack when setting the recording paper is to instruct the user to take care to avoid slack when setting the recording paper. The problem was that it could not be prevented. The above problem is particularly likely to occur in small recording devices that use small-diameter roll paper. [Means for Solving the Problems] The present invention has been made in view of the problems listed in L. The purpose of the CJ1 is to provide a recording device that prevents recording from being performed while the recording paper is set in the recording device in a slack state, and can prevent paper jams. The structure of the present invention that achieves the above object includes a holding means for holding a continuous sheet wound into a roll, a recording means for recording an image on the continuous sheet held by the holding means, and a continuous sheet held by the holding means. a detection means for detecting slack in a rolled part of the continuous sheet and emitting a detection signal;
The recording apparatus is characterized in that it has a control means for prohibiting the operation of the recording means in response to the detection signal. [Example] An example of the present invention is shown in Fig. 1 and Fig. 4. This embodiment is a recording apparatus using thermal recording paper as a continuous sheet, and l is a recording head, which is rotatably attached to a shaft 4 and is pressed in the direction of a platen roller 2 by a shaft 3. When performing recording, place the recording head l on the recording paper 6.
The heating element provided on the recording head L is selectively heated in accordance with a recording signal from a control circuit 30 as a control means, and this heat generation causes an image to be printed on the recording paper 6. This is done by forming. The platen roller 2 is supported by a platen holder 8, and is driven by a transport motor 3l to feed and transport the recording paper 6. The recording paper 6 is placed on a pedestal 5 which serves as a holding means for the recording paper 6, and its leading edge 6a is pulled out and sent to the platen roller 2, passing between the recording head l and the platen roller 2 and being cut into a pair of cutters 11. Blade 1. I. a, llb and is drawn out to the discharge port 14. The platen holder 8 is rotatably supported on the main body of the apparatus by a shaft 7, and in this embodiment, it is constructed integrally with the opening/closing lid l3.

Reference numeral 9 denotes a guide section for the recording paper 6, which is provided inside the opening/closing lid 13.
Moreover, it is provided at a position facing the pedestal 5 integrally with the opening/closing switch M13. Further, its surface is formed into a curved or polygonal shape so that the recording paper 6 can be stably atted, and the recording paper 6 can be smoothly transferred to the pedestal 5 by rotation of the opening/closing lid l3. It is formed. 10 is a sensor for detecting the presence or absence of recording paper 6;
is installed on the entrance side of the recording paper 6 to detect the presence or absence of the recording paper 6, generate a signal, and transmit the signal to a control section (not shown).

] 1 is a cutter for cutting the recording paper 6 into a predetermined length;
The platen, which is the recording section, is located on the ejection side from the intersection of the platen 1 and the recording head 2. The cutter 11 has a pair of blades 11
blades 11a and llb, and are driven by a drive device (not shown) to drive blades 11a and llb. b is driven to cut the recording paper 6. 13 is for opening and closing, and is attached to the Braden holder 8 by screw 12.
It is constructed integrally with the shaft 7 and is rotatably provided around a shaft 7. 15 is a main body L cover, and 16 is a main body cover.

Next, numeral 17 is a sensor as a detection means for detecting whether or not the set recording paper is sagging, and here a microswitch is used. 18 is the actuator of the microswitch. 19 is an opening through which the actuator 1B provided in the guide portion 9 operates. 3rd [J is a control block diagram of this embodiment, 30 is rfA
A control circuit 32 serves as a means for w, and a display section 32 serves as a notification L stage, such as a liquid crystal display board. Next, the operation of this embodiment will be explained. Normally, when there is no slack in the recording paper 6, the actuator 18 is positioned toward one side of the recording paper 6 as shown in FIG. 1, and the sensor 17 is in the OFF state. It has become.

However, when there is a slack 6b as shown in Fig. 2, the actuator l8 is pushed by the slack 6b and the sensor 17 is pushed down by the slack 6b.
becomes ON and emits an ON signal. In this way, when the sensor 17 is ON, it is determined that there is slack, and when it is OFF, it is determined that there is no slack. In the flowchart of FIG. 4, when recording paper is set (step S1),
The sensor l7 detects whether there is slack (step S2). If it is determined that there is slack, the process moves to step S3, where it is determined that there is a "C recording error", and an error is displayed on the display section 32 at step S4. If it is determined in step S2 that there is no slack in the recording paper, normal recording operation is performed. That is, preparation for recording is performed in step S5, a recording signal is waited for in step S6, and when a recording signal is received, recording is performed by controlling the transport motor 3l and the recording head l. The output signal of sensor l7 is monitored even during recording (step S8), and if it is determined that there is slack in the recording paper, the recording operation is stopped in step S10, and the process moves to steps S3 and S4 described above, and an error is detected. Perform display. If there is no slack in step S8, recording continues until recording is completed (step S9).

If an error message is displayed, the user should reset the recording paper 6 so that there is no slack. It goes without saying that the actuator 18 of the sensor l7 should be operated so that it is lighter than the waist of the slack 6b. E Other Examples] Figure 5 shows other examples. 20.21 is the light emitting and light receiving element of a pair of optical sensors.As shown in the figure, when the recording paper is set, the gap between the recording paper 6 and the E lid 22 is empty when there is no slack in the recording paper 6, so the optical sensor 20 , 2l detects that there is no slack, and when there is slack in the recording paper 6, the slack portion 6a comes into contact with the 42M22, and the light sensor 2θ. 21 detects that there is slack in the recording paper 6, notifies the user of this using a notification means (not shown), and causes the user to set the recording paper 6 (41).

Does the above embodiment apply the present invention to a recording device?The present invention can be applied to any device that records images on a long continuous sheet, such as a facsimile machine, a copier, an inkjet printer, and a wired printer. ij
f ability.

Further, in the embodiment described in L, the notification stage F uses a liquid crystal display panel, but is not limited to this, but may also use an LED or a sound generating device.

[Effect of the Invention 1] As explained in 14 below, according to the present invention, it is possible to prevent recording from being performed while the recording paper is set in the recording device in a slack state, and to prevent paper jams and recording errors. It is possible to provide a recording device that can prevent this.

[Brief explanation of drawings]

wSl diagram is a cross-sectional view of the embodiment of the present invention, FIG. 2 is an operation diagram IJI diagram of the embodiment of the present invention, FIG. 3 is a control block diagram of the embodiment of the present invention, and 4i14 is a diagram of the embodiment of the present invention. FIG. 5 is an IA showing another embodiment of the present invention, and FIG. 6 is a diagram showing a conventional recording apparatus. 1 is the recording head 2 is the platen roller 5 is the pedestal
6. Recording paper 8 is a Braden small folder II is a cutter 1 is an open/close lid l4 is an ejection [1l7 is a sensor 18 is an actuator 19 is an open r-i

Claims (1)

[Claims] (1) a holding means for holding a continuous sheet wound into a roll; a recording means for recording an image on the continuous sheet held by the holding means; A recording device comprising: a detection means that detects slack in a wound portion and issues a detection signal; and a control means that prohibits operation of the recording means in response to the detection signal.