JPH02107051A - Facsimile equipment - Google Patents

Abstract

PURPOSE:To easily and surely execute a jamming processing and cleaning by arbitrarily rotating a read background roll in forward and backward directions in a condition in which an original is not carried. CONSTITUTION:When an opening/closing body 14 is opened, and a microswitch 11 is turned off, a starting key 18a functions as a key to clockwise rotate the read background roll 8, and a stopping key 18b functions as a key to counter- clockwise rotate the roll 8. Consequently, when the original is jammed or the read background roll is stained, the opening/closing body is opened, and the read background roll can be arbitrarily rotated in the forward/backward direction by the will of an operator. Thus, the jamming processing and the cleaning of the read ground roll can be easily and surely carried out.

Description

DETAILED DESCRIPTION OF THE INVENTION (Field of Industrial Application) The present invention relates to a facsimile device for transmitting or copying document information over a telephone line.

(Prior Art) Conventionally, in facsimile machines, when the operator cleans the reading background roller or clears a jam, it is impossible to rotate it forward or backward as the operator intends via the drive system, so It was forced to rotate.

(Problem 8 to be solved by the invention) However, in the method described in Section 2, there is a risk that an excessive load will be placed on the reading background roller and the document conveyance accuracy will be reduced, and the drive system that only rotates in one direction In this case, there is a risk of irreparable damage due to being forced to rotate in the opposite direction. In addition, there are many sensors on the document passing surface near the reading background roller, and in certain combinations, these sensors sense your fingers, etc., and drive the reading background roller, and your fingers, cleaning cloth, etc. Typically, facsimile machines had to be turned off due to the risk of being caught in the process.

Therefore, as a method for cleaning the dirt adhering to the reading background roller, (1) always perform mechanical cleaning as described below.

(a) Bring a cleaning blade close to the reading background roller to scrape off dirt.

(b) While rotating the brush, bring it close to the reading background roller and scrape off the dirt.

■The degree of dirt on the surface of the reading background roller, that is, the reflectance, is monitored, and cleaning is performed when the reflectance drops below a certain standard, the distribution of reflectance is uneven, or exceeds the standard reflectance. .

is possible.

However, in method (D) (a), it is difficult to maintain a constant distance between the blade and the reading background roller;
b) If both are done for a long time, there is a risk of damaging the surface of the reading background roller. In addition, method ■ requires a monitoring mechanism,
The mechanism that drives and controls the cleaning device itself has a large volume and weight, so reading this 1! Sipping close to or away from the view roller is undesirable as it increases costs and increases the size of the device.Therefore, it is difficult to put the above methods (1) and (2) into practical use.

This invention is intended to solve the above problems, and by arbitrarily rotating the reading background roller in the forward or reverse direction when the document is not being transported, jam removal and cleaning can be easily performed.
The purpose of this invention is to provide a facsimile device that can be used reliably.

(Means for Solving the Problems) In order to achieve the above object, the present invention places a document on a document guide and then operates an operation section to transport the document to an image reading section and information on the document. In a facsimile machine that transmits or copies images over a telephone line, the reading background roller provided in the image reading section is configured to be able to rotate forward or backward by an operator's arbitrary operation when the document is not being conveyed.

(Function) The function of the present invention based on the above configuration is that when a document is jammed in the image reading section or when the reading background roller is dirty, the reading IV
- The view roller can be rotated in any direction desired by the operator.

(Example) Next, the present invention will be described based on an example shown in the accompanying drawings.

In the figure, 1 is the facsimile apparatus of the present invention, 1a is the north cover, and lb is the bottom cover. 2 is a document guide provided on the front side of the upper blade par 1a. 3 is a separation roller; 4 is a separation rubber piece brought into contact with the separation roller 3; the separation rubber piece 4 is an opening/closing body (described later) provided on the upper side of the facsimile machine l;
It is rotatably attached to via a shaft 4a. 5 is a feed roller, and 6 is a pressure roller that presses the feed roller 5 with a constant pressure, and is rotatably attached to the opening/closing body.

Reference numeral 7 denotes an image reading section consisting of a reading background roller 8 and an image reading sensor 9, and the image reading section 7 is for reading information on a document (not shown) placed on the document guide 2. This reading background roller 8 is reversely rotated by a drive device (not shown), and the rotating shaft 8a is directed toward the image reading sensor 9 by a suppressing lever 10 provided inside the opening/closing body as shown in the third figure. It is configured to prevent out-of-focus (image blur) caused by the biased and conveyed original floating off the image reading sensor 9.

In addition, the reading background roller 8 also has the role of providing a white peak reference signal to the image reading sensor 9 when an original with a dark background color or a transparent original is inserted, and is constantly in contact with or in contact with the original. Since the material is brittle, it is desirable to use an inexpensive material that does not attract dirt easily and can be easily removed, such as tetrafluoroethylene resin, nylon, or some type of rubber.

Reference numeral 11 denotes a microswitch, and the microswitch 11 is connected to a control section (described later) via an m-line 12. 1
3 is an actuator for turning on and off the microswitch 11, which is turned off when the actuator 13 is in the raised position and turned on when it is in the lowered position.

14 is an opening/closing body provided on the front side of the upper cover 1a, and the opening/closing body 14 is attached to a rotating shaft 15 provided at an appropriate position of the facsimile machine 1.
via an arm 16. 17 is a sensor arm provided below the arm 16. When the opening/closing body 14 is closed as shown in FIG. 3, the actuator 13 is pressed to turn on the microswitch 11, and when it is opened as shown in FIG. The microswitch 11 is turned OFF when the microswitch 11 moves away from the point.

Reference numeral 8 denotes an operation section provided on the upper surface of the cover 14, and the operation section 1
Reference numeral 8 includes buttons for starting operations such as transmission, reception, and copying of original information, and in this embodiment, consists of a start key 18a and a stop key 18b for interrupting or stopping these operations.

Reference numeral 19 denotes a control unit, and the control unit 19 includes: (1) a drive device (not shown) for the image reading unit 7 and the reading background roller 8; (2) an operating unit 8;
and its display section (not shown), ■micro switch 11,
■Recording unit and its driving device 2 when copying original information
0, 7tt source E (network control unit 21.18 for branching the signal from the Φ control unit 19 to a telephone set or line), respectively. This control section 19 senses the reflectance distribution, ie, the dirt state, of the reading background roller 8 based on the output of the image reading sensor 9 when no original is inserted. and,
For example, if the highest reflectance value and the lowest reflectance value are detected from the reflectance distribution of the reading background roller 8, and the difference exceeds a predetermined reference value, and all the reflectances of the reading background roller 8 are detected, It is configured to integrate and, if the value is less than a predetermined reference value, notify the operator of the dirt on the reading background roller 8 using a display or sound.

Further, when the opening/closing body 14 is opened and the microswitch 11 is turned off as described above, the start key 18a functions as a key for rotating the reading background roller 8 clockwise in the figure, and the stop key 18b functions as a key for rotating the reading background roller 8 clockwise in the figure. It will function as a key to rotate in the direction. In addition, ■ If the document is being sent, stop the document transport and open the line; ■ If the document is being copied, stop copying and stop document transportation; (3) If the one-touch dial is being registered, the process is configured to forcibly suspend or terminate the process. however,
If it is being received, it will not be interrupted because it is not directly related to a jam in the document transport system, and priority is given to transmitting information.

Note that 22 is an ejection port through which the original that has passed through the image reading section 7 is ejected.

Next, the operation of the present invention will be explained based on the flowchart shown in FIG. The original is inserted from the direction of arrow a in the figure, passes over the original guide 2, and is inserted until it reaches between the separating roller 3 and the separating rubber piece 4. Normally, when the start button 18a is pressed, the facsimile transmission mode is entered if the telephone line is closed, and the copy mode is entered if the line is open. Since the operation of the reading unit is the same in both cases, the following explanation will be based on transmission as an example.

When the transmission mode is started, as shown in FIG. Rotate the feed reroller 5° and the reading background roller 8 in the directions of the arrows. As a result, the document passes between the separation roller 3 and the separation rubber piece 4, is given a conveyance force by the feed roller 5 and the pressing roller 6, and is conveyed at a constant speed. The image information is read by being pressed against the paper, and the paper is discharged from the discharge port 22 in the direction of the arrow.

By the way, there are two cases in which the operator opens the opening/closing body 14. One is when a so-called jam occurs in which a document is jammed inside the conveyance system and the jammed document is to be removed, and the other is when the reading background roller 8 is cleaned.

In the former case, the separating rubber piece 4 and the pressing roller 6 are separated from the separating roller 3 and the feeding roller 5, respectively, as shown in FIG. 4, so that the document passing surface is wide open. Further, as shown in FIG. 5, the pressing lever 10 of the reading background roller 8 is separated from the shaft 8a of the reading background roller 8, so that the pressing force is only due to its own weight. Therefore, even if a document is caught between the background roller 8 and the image reading sensor 9, it can be easily pulled out with a weak force.

Now, when the opening/closing body 14 is opened, the microswitch 11 is turned OFF (step). The control unit 19 detects this and departs from the normal processing routine. and control section 1
9 detects whether or not the document is being sent (step ■), and if it is in progress, stops the document transport system (step (■)) and opens the line (step ■). This is to prevent the jam condition from worsening. Copying for the same reason (step ■)
In this case, the copying is also interrupted and the driving of the document conveyance system is stopped (step ■). Even when other processes such as one-touch dial registration are being performed (step 2), the functions of the operation keys may change, so these processes are forcibly interrupted or terminated. However, it is not interrupted only when receiving (step ■).

Therefore, jam removal and cleaning of the pre-read Jt roller 8 must wait until reception is completed.

To exit from this routine, press the micro switch 11.
It is only necessary to turn ON (step (9)), that is, close the opening/closing body 14.

When a specific key, for example, the start key 18a, on the operation unit 18 is pressed (step 4CB), that is, it is turned ON, while the microswitch 11 is OFF, the control unit 19 detects this and moves the reading background roller l to the normal position. direction of transport,
That is, rotate clockwise in FIG. 5 (step 0),
Further, when another button, for example, the stop key 18b is pressed, the reading background roller 8 is rotated counterclockwise in the direction 2 opposite to the document conveyance direction, that is, in FIG. 5 (step 45).

If both the start key 18a and the start key 9b are pressed, or if both are not pressed, the reading background roller 8 will not rotate (step strange).However, in this case, the reading drive device (not shown) will not rotate. Since the motor is not energized, the reading background roller 8 can be rotated with a slightly strong force.

Note that if the microswitch 11 is ON (step q9), the process shifts to the normal operation mode (step O).

In the case of a jam, the reading background roller is rotated by the above-mentioned key operation and the document wrapped around the roller is removed. In the case of a simple jam, the document can be pulled out. In the case of cleaning the reading 1 background roller 8, as shown in FIG. 4, a cleaning pen 23 having a felt portion 23a at its tip exudes a solvent such as isopropyl alcohol is used. That is, while scanning the cleaning pen left and right over the reading background roller, the roller may be rotated in either direction.

In addition, in the second embodiment, the microswitch 11
The start key 18a and stop key 18b are configured to be used as keys to rotate the reading background roller 8 clockwise and counterclockwise by turning them ON and OFF. It is also possible to perform the L switching at will.
[Cost] Unless the second problem arises, it goes without saying that it would be better to provide a specific key or switch for controlling the rotation of the rollers.

In this embodiment, a case has been described in which the forward and reverse directions of the reading background roller are performed by operating an arbitrary key on the operation unit. The reading background roller may rotate normally (reversely) when the opening/closing body is opened wide, and reversely (normally rotated) when the opening/closing body is opened slightly.

(Effects of the Invention) Since the present invention is configured as described above, when a document is jammed or the reading background roller becomes dirty, the opening/closing member is opened and the reading background roller is adjusted to the correct position according to the user's will. It can be rotated in reverse. Therefore, it is possible to easily and reliably perform jam removal and cleaning of the reading background roller, which is an excellent effect.

[Brief explanation of drawings]

The drawings show an embodiment of the present invention, in which Fig. 1 is a partially cutaway oblique customs wall, Fig. 2 is a sectional view taken along the line A-A in Fig. 1, and Fig. 3 is a cross-sectional view taken along line A-A in Fig.
The figure is a cross-sectional view taken along line B-B in Figure 1, Figure 4 is a cross-sectional view taken along line A-A in Figure 1 with the opening/closing body open, and Figure 5 is a cross-sectional view taken along line B-B in Figure 1 with the opening/closing body closed. 6 is a block diagram, and FIG. 7 is a flowchart showing the operation of the present invention. Symbol 1...Facsimile machine 2...Document guide 8...Reading background roller 18a...Start key 18b...Stop key 7...Image reading section 18...Operation section

Claims (2)

[Claims] (1) In a facsimile machine that places a document on a document guide, operates the operation unit to transport the document to the image reading unit, and then transmits or copies the information on the document over a telephone line. A facsimile machine characterized in that a reading background roller provided in an image reading section can be rotated forward or backward according to an operator's arbitrary operation. (2) The facsimile apparatus according to claim 1, wherein the reading background roller is rotated in the forward and reverse directions by operating any two keys on the operating section.