JPH0411448A - Facsimile equipment - Google Patents

Abstract

PURPOSE:To prevent waste paper of rectangular strip shape from being caused by retreating recording paper when a fault is found out in a cutter and driving the cutter. CONSTITUTION:When recording paper is not fed to a tip detecting sensor 58 or a cutter 60 is abnormal state, after the recording paper is retreated, the cutter 60 is driven and abnormal state avoidance processing is implemented. Thus, since the recording paper is retreated from the cutter 60 in the abnormal state processing in the cutter 60, even when the cutter 60 is driven, waste pieces of rectangular strip shape of the recording paper are not caused.

Description

DETAILED DESCRIPTION OF THE INVENTION [Industrial Field of Application J] This invention relates to a facsimile machine that prevents recording paper from being cut into strips when a cutter device jams.

``Background of the Invention'' The peripheral portion of a cutter device used in a facsimile machine is constructed as shown in FIG.

In the figure, 52 is a platen roller, 54 is a recording head, for example a thermal head, and 56 is recording paper (thermal recording paper).

The platen roller 52 is rotationally driven by the paper feed motor driving means 32, thereby feeding the recording paper 56 from the left side to the right side in the figure.

The leading edge of the recording paper 56 is detected by a leading edge sensor 58, and the leading edge of the recording paper 56 is controlled so as to stop at a predetermined position (a determined standby position) where it passes the leading edge sensor 58.
+ will be added.

A cutter device 60 is arranged on the right side of the tip sensor 58.

As is well known, the cutter device 60 includes a fixed blade 62 and a movable blade 6.
4 and a driving means 66 for a movable blade 64, and the recording paper 56 is cut by the movable blade 64 as shown in FIG.

70 is a cutter sensor, and when the cutter device 60 is in an abnormal state, a detection signal corresponding to the abnormal state is outputted.

In the figure, a cutter sensor 70 is arranged in relation to the drive means 66, and it is determined that the cutter device 60 is in an abnormal state when the drive means 66 is not in the normal position.

[Problems to be Solved by the Invention] By the way, when the power is turned off while the cutter device 60 is being driven, or when the recording paper 56 is jammed and cannot be cut normally, the movable blade As shown in FIG. 6, the cutter 64 stops in the middle of the cutter operation.

Since this abnormal state can be easily determined by the detection signal from the cutter sensor 7o described above, in the conventional facsimile machine, the 1fM switch is first turned off, and then the power is turned on again.

Then, when the power is turned on, the cutter device 6o is forcibly driven.

At that time, since the recording paper 56 is caught between the fixed blade 62 and the movable blade 64, first the movable blade 64
After being driven until it reaches the initial operating position (Fig. 5),
The movable blade 64 is moved again to perform a cutter operation. Thereafter, the feeding of the recording paper 56 is controlled so that the leading end of the recording paper 56 is at a home position (the position immediately before the cutter device 60).

If the cutting operation cannot be performed because recording paper, paper dust, etc. are trapped, the abnormal condition will be displayed again, and the operator or the like will have to remove them.

In this way, in the event of an abnormality such as a jam, after driving the cutter device 60, the recording paper 56 is moved so that the recording paper 56 comes to the normal position.
It controls the paper feeding state of No. 6.

Therefore, when the cutter device 60 is driven, the leading edge of the recording paper 56 may still slightly remain between the fixed blade 62 and the movable blade 64.

In such a case, there is a possibility that the leading edge of the recording paper 56 may be slightly (about 1 mm) cut again due to this creeping operation. Then, the cut strip-shaped recording paper 56 falls and remains inside the housing of the facsimile machine. It is preferable to remove these strip-shaped pieces of paper (waste paper) because they may have an adverse effect on the drive system of the apparatus, but it is difficult to remove such paper scraps.

In view of this, the present invention proposes a facsimile family that solves these conventional problems with a simple structure and does not cause strips of paper to come apart even during jam avoidance processing.

[Means for Solving the Problems] In order to solve the above-mentioned problems, the present invention provides a paper feed motor driving means for feeding recording paper, a leading edge detection means for detecting the leading edge of recording paper, and a power source. When on,
a recording paper control means for controlling the paper feed motor driving means to move the recording paper backward, advance it again, and stop the recording paper at a predetermined position where the recording paper has passed the leading edge detection means; The present invention is characterized by comprising a detection means for detecting whether a normal state is an abnormal state, and a cutter device control means for driving the cutter device to move the recording paper backward when an abnormal state of the cutter device is detected. It is something.

[Function] When the power is turned on, the paper feed motor is first rotated in the reverse direction to once move the recording paper 56 backward, and then conveys the recording paper 56 to a fixed position.

Next, after the recording paper 56 is retreated, the state of the cutter device 60 is detected. As described above, when the power is turned off during the cutter operation, it is determined that the cutter device 6o is not in a normal state, and in that case, the cutting process is executed.

If the cutter device 6o is not returned to the normal state even after being driven, error processing is performed as usual.

In this way, if the recording paper 56 is pulled back from the cutter device 60 before performing the cutting process, the recording paper 56 will not break into strips.

[Embodiment] Next, an example of a facsimile apparatus according to the present invention will be described in detail with reference to FIG. 1 and subsequent figures.

FIG. 1 shows a functional block diagram of the present invention. Reference numeral 32 denotes a paper feed motor driving means for feeding the recording paper, which drives the platen a-roller 52 to drive the recording paper. 56 is fed.

60 is a cutter device for the recording paper 56.

Reference numeral 58 denotes a leading edge detection means for detecting the leading edge of the recording paper 56, which corresponds to a leading edge sensor.

70 is a detection means for detecting whether the stop position of the cutter device color 0 is in a normal state or an abnormal state, and corresponds to the cutter sensor.

Reference numeral 40 denotes a recording paper feeder that, when the power is turned on, controls the paper feed motor driving means 32 to move the recording paper 56 backward, then moves it forward again and stops the recording paper 56 at a predetermined position 1 where it passes the leading edge sensor 58. 1111M means.

42, when an abnormal state of the cutter device 60 is detected, the recording paper 56 is retracted and then the cutter device is installed! This is a cutter device control means for driving the cutter 60.

Of the means shown in FIG. 1, the recording paper feed cylinder d means 4
0 and cutter device control means 42, their functions are achieved by software. Therefore, in order to achieve this function, the facsimile machine is provided with communication control means 10 as shown in FIG.

In the same figure, 11 is the above-mentioned feed (g fllJ
This is the CPU that manages #.

12 is a ROM storing a control program for controlling the cutter device 60, and 13 is an R for storing image data.
It is AM memory.

The image data read by the image reading unit 14 is stored in the RAM 13 via the interface 15 or directly to the modem and network control circuit (NCU) 16.
supplied to

Image data input from the line is sent to this modem and NCU.
16 directly or once stored in the RAM 13, the data is supplied to the recording unit 18 via the interface 17 and recorded.

As shown in FIG.
It is composed of 4 etc.

The telephone number of the destination party is supplied to the display section 20 via the interface 19, and is displayed thereon.

Reference numeral 21 is an operation unit for inputting a telephone number, etc., and 22 is an interface thereof.

Then, the paper feed motor driving means 32 and the cutter device 60 are connected to the CPU II via interfaces 46 and 48, respectively, and the faJ plowing operation can be executed according to the control program.

FIG. 3 shows the cutter protrusion of the cutter device 60 and the recording paper 56.
Control program 80 for realizing paper feed control for
An example is shown below.

First, this control program is started by turning on the power of the device. Then, the detection state of the leading edge sensor 58 is determined, and the leading edge sensor 58 is turned on, that is, the recording paper 58 is turned on.
6 is facing the leading edge sensor 58 (step 81), the paper feed motor is reversed to move the recording paper 56 backward from the cutter device 60 (step 82, FIG. 4A).
, see B).

Then, when the leading edge of the recording paper 56 passes this leading edge sensor 58 and the leading edge sensor 58 is turned off, the paper feed motor is stopped (steps 83 and 84).

Next, the state of the cutter device 6o before inputting ta is checked (step 85).

As mentioned above, if the power is turned off during the cutter operation and the cutter device 60 does not return to its normal state or if a jam occurs and remains as it is, the detection signal of the cutter sensor 7o Cutter device 6o based on
is determined to be abnormal, and the cut mode flag is kept set. Therefore, in a normal state, the cut mode flag is not set.

When the cutter device 60 is in a normal state, the paper feed motor is now driven in normal rotation to advance the recording paper 56 in step 8.
7) When the recording paper 56 passes the leading edge sensor 58 (step 88), the leading edge position of the recording paper 56 is fed to the normal position (standby position) (step 89).

On the other hand, if the recording paper 56 has not been fed to the leading edge sensor 58 or the cutter device 60 is in an abnormal state (step 81.85), the cutter device 60 is driven after the recording paper 56 is retreated. Then, abnormal state avoidance processing is performed (step 86, see FIG. 4C).

This abnormal condition is usually a jam. Only when this ivy operation is completed is the paper feed motor driven to rotate in the normal direction (step 87).

Therefore, when the cutter device 60 processes an abnormal state, the recording paper 56 is retreated from the cutter device 60, so even if the cutter device 60 is driven, the recording paper 56 is not cut into strips.

The drive timing of this cutter device 60 may be any timing after the recording paper 56 is retreated.
There is no particular need to drive the cutter device 60 in synchronization with the stoppage of the paper feed motor as shown in FIG.

Note that when the paper feed motor is driven in reverse to move the recording paper 56 backward (step 82), even if a predetermined period of time has elapsed since the paper feed motor was driven in reverse, the leading edge of the recording paper 56 does not reach the leading edge sensor 5.
8, and therefore the leading edge sensor 58 does not turn off even if the count value exceeds the specified value (steps 83 and 91), the recording paper 56 is removed from the cutter device 60.
In this case, error handling is executed in the same way as in the normal case (step 92).
).

Similarly, when the paper feed motor is driven in normal rotation to move the recording paper 56 forward (step 87), even if a predetermined period of time has elapsed since the paper feed motor was driven in normal rotation, the leading edge of the recording paper 56 does not reach the front edge sensor. 58, and therefore the leading edge sensor 58 does not turn on even if the count value exceeds the specified value (step 88.93), this is because there is an abnormality in the feeding of the recording paper 56. , In this case as well, error handling is executed as in the normal case (step 92).
.

[Effects of the Invention] As described above, according to the present invention, only when an abnormal state of the cutter device is detected, the cutter device is driven after retracting the recording paper.

According to this, since the cutter operation is performed after the recording paper has retreated, there is no adverse effect on the device drive system etc. caused by the recording paper cut into strips remaining inside the device housing. It has characteristics that can be completely avoided.

[Brief explanation of the drawing]

FIG. 1 is a functional block diagram of a facsimile device according to the present invention, FIG. 2 is a system diagram of the facsimile device, FIG. 3 is a flowchart showing an example of the flow of the cutter device ll1m, FIG. 4 is an explanatory diagram of its operation, and FIG. 6 and 6 are mechanical explanatory diagrams of the peripheral portion of the cutter device. 13...RAM 14...Image reading section 18...Recording section 20...Display section 21...Operation section 32...Paper feed motor drive means 40...Recording paper feed control means 42 ... Cutter device control means 56 ... Recording paper 58 ... Recording paper leading edge detection means (tip sensor) 60 ... Cutter device 66 ... Drive means 70 ... Cutter device abnormality detection means (cutter sensor) )

Claims (1)

[Claims] (1) A paper feed motor driving means for feeding the recording paper, a leading edge detection means for detecting the leading edge of the recording paper, and when the power is turned on, the paper feeding motor driving means is controlled to move the recording paper backward. Recording paper control means that then advances the recording paper again and stops it at a predetermined position where it has passed the leading edge detection means; a detection means that detects whether the stopping position of the cutter device is in a normal state or an abnormal state; and the cutter device and cutter device control means for driving the cutter device after retracting the recording paper when an abnormal condition is detected.