JP3350894B2 - Facsimile machine - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

[0001] The present invention relates to a facsimile apparatus.

[0002]

2. Description of the Related Art In a conventional facsimile machine, a rotary cutter is often used as a cutter for cutting a roll-shaped recording sheet (for example, see Japanese Patent Publication No. 6-45420). In recent years, instead of the rotary cutter, a slide cutter that slides a cutter blade in the main scanning direction of the recording paper has come to be used.

FIG. 2 shows a schematic configuration of the slide type cutter. The slide type cutter can be moved in the left-right direction (the main scanning direction of the recording paper) in the figure by rotating a circular blade 2 supported by a rotating shaft 1 extending in a direction perpendicular to the paper surface. This is for cutting the recording paper. The right and left movement of the circular blade 2 includes a rightward movement for cutting the recording paper (indicated by an arrow F in the figure, hereinafter referred to as a forward movement) and a return of the circular blade 2 to the home position. This is a leftward movement (indicated by an arrow R in the figure, hereinafter referred to as a backward movement). The circular blade 2
Is restricted by the left and right ends of the horizontally long opening 3 through which the rotary shaft 1 is inserted.

Further, even in a facsimile apparatus equipped with such cutter means, when receiving a plurality of pages, the cutter means is disabled so as to avoid scattering of the recording paper. Some of them have been designed to print a page separator line.

As described above, when it is possible to selectively switch between the automatic cut in page units and the function of printing a page separation line between pages, manual cutting in the above-described page separation line printing portion is also possible. During standby, it is desired that the unprinted leading edge of the roll-shaped recording paper is always located at the recording paper discharge port 33 (see FIG. 2).

[0006]

In this type of apparatus, when the recording paper is replaced while the power is turned off,
The tip is not always set so as to be located at the discharge port, and some correction operation is required when the power is turned on after the recording paper is replaced.

In order to position the unprinted leading end of the roll paper at the recording paper discharge port 33 in this manner, a sensor for detecting the recording paper should be disposed near the discharge port 33 in theory. In an actual product, as shown in FIG. 2, the space between the cutter means 26 and the discharge port 33 cannot be made large in order to easily discharge the recording paper automatically cut by the cutter means 26. Placing the sensor in the vicinity is not substantial.

[0008]

SUMMARY OF THE INVENTION The present invention has been made in view of the above problems, and has a feature that a recording paper discharge port formed in a housing, a cutter means for cutting roll-shaped recording paper, and a recording medium. Detecting means for detecting the presence or absence of paper and a recording means for performing recording on the recording paper are arranged in that order, and the leading end of the roll-shaped recording paper mounted on the upstream side of the recording means is the recording means, the detecting means, A transport unit capable of transporting in both forward and reverse directions in a transport path passing through the cutter unit and the discharge port, and a control unit for controlling each of the above units; and a recording sheet recorded by the cutter unit in units of pages. In a facsimile apparatus capable of selectively switching between an automatic cutting mode for automatically cutting and a dividing line printing mode for printing a page dividing line instead of cutting, the control means includes: To The transfer means is controlled so as to feed back to the recording means side, and thereafter, it is determined that there is no recording paper by the detection means, or on the condition that feedback is provided by the distance between the detection means and the discharge port. The object of the present invention is to control the transfer means so that the sheet is fed toward the discharge port by the distance.

[0009]

[0010]

[0011]

FIG. 1 is a block diagram showing a circuit configuration of a facsimile apparatus to which the present invention is applied. In FIG. 1, a CPU 10 is constituted by, for example, a microcomputer and controls each unit connected via a bus 12 based on a control program stored in advance in a ROM 11 composed of a semiconductor read-only memory.

The SRAM 13 is composed of a semiconductor random access memory, and is always backed up by a battery (not shown). The SRAM 13 stores various flags, counters, fixed values, and the like used during the control operation of the CPU 10 based on the control program. The main components are a flag CEF indicating a cutter abnormality, a flag CAF indicating that the cutter is operating, a flag PAF indicating that a printing operation is being performed, a flag HCF indicating whether or not a cutting operation is performed in response to a manual cut key operation described later, and an automatic cutter. Flag CFF indicating ON / OFF of function, counter FD for counting feed or feedback amount of recording paper
CNT, a distance L1 between the second sensor 30 and the discharge port 33 in a printing system described below, a distance L2 between the thermal head 19 and the cutter 26, a distance L3 between the second sensor 30 and the cutter 26, and a distance L2 between the second sensor 30 and the cutter 26. This is the distance L4 between the outlet 33 and the distance L5 between the thermal head 19 and the outlet 33.

The timer circuit 14 starts timer counting under the control of the CPU 10 and outputs the count time to the CPU 10. The notification circuit 15 includes the CPU 10
Various messages are notified under the control of. NCU16
Disconnects and connects the telephone line under the control of the CPU 10 and detects an incoming call from the telephone line to notify the CPU 10. The modem 17 has a function of modulating and demodulating a facsimile signal transmitted and received via the NCU 16.

The recording control circuit 18 controls the energization for recording on the roll-shaped thermosensitive recording paper 21 by the thermal head 19 in the schematic mechanism diagram of the printing system 20 of this embodiment shown in FIG. To do.

The motor control unit 22 controls the driving of the stepping motor 23 and the DC motor 24 under the control of the CPU 10. The stepping motor 23 drives the platen roller 25 pressed against the thermal head 19 to feed or feed back the recording paper 21 inserted between the thermal head 19 and the platen roller 25. Also,
The feed or feedback drive of the stepping motor 23 is performed in a predetermined angle (distance) unit by a pulse in a predetermined number unit supplied from the motor control unit 22, and the feed or feedback distance is determined by the supply pulse amount. it can. The DC motor 24 gives a driving force to the cutter 26 shown in FIG. That is, the cutter 26 is the slide cutter shown in FIG. 2 described above, and the driving force of the DC motor 24 is
As a result, the circular blade 2 moves in the left-right direction in FIG. Hereinafter, a current supplied to the DC motor 24 for the forward movement of the circular blade 2 by the motor control unit 22 is referred to as a cut (F) signal, and a DC signal for the backward movement of the circular blade 2 is provided. The current supplied to the motor 24 is called a cut (R) signal.

The current detection circuit 27 is provided with the motor control unit 2
2, the amount of current supplied to the DC motor 24 is detected. This is because the DC motor 24 is a DC motor, so that the circular blade 2 moves in the forward direction when the circular blade 2 moves in the forward direction.
At the right end of the horizontal opening 3 and at the left end of the horizontal opening 3, that is, at the home position during the reverse movement.
This is for detecting the position of the circular blade 2 in view of an increase in the current value supplied to the motor 22. When the current detection circuit 27 detects a current value equal to or more than a predetermined value (280 mA in this embodiment), the CPU 10 determines that the circular blade 2 has reached the left and right ends of the horizontally long opening 3.

A sensor I / O 28 is arranged in the vicinity of the recording paper 21 in FIG. 3, and is provided between the output of the first sensor 29 for detecting the presence or absence of the recording paper 21 and the thermal head 19 and the cutter 26. The output from the second sensor 29 for detecting the presence or absence of the recording paper 21 on the passage during this time and the recording paper jam is supplied to the CPU 10. The first and second sensors 29 and 30 are both constituted by reflection type optical sensors.

The reading unit 31 is a well-known optical reading unit that has an optical reading device such as a contact image sensor and reads image information on a document to be transmitted.

The operation unit 35 includes a dial key for inputting a telephone number, a manual cut key for requesting driving of the cutter 26, and a mode for automatically cutting the recorded recording paper 21 in page units. A key for selectively switching between (automatic cutting mode) and a mode for printing a page dividing line instead of cutting (separation line printing mode) is provided. "1" is set in the flag CFF indicating ON / OFF of the function, and when the dividing line printing mode is selected, the flag CFF is set.
FF is reset to “0”.

In FIG. 3, the thermal head 19, the recording paper 21, and the platen roller 2 constituting the printing system 20 are shown.
5, the cutter 26, the first sensor 29, and the second sensor 30 are arranged in the housing 32. The housing 32 has a discharge port 33 for discharging the recorded recording paper 21. The components constituting the printing system 20 are arranged in the order of the first sensor 29, the thermal head 19 and the platen roller 25, the second sensor 30, and the cutter 26 between the recording paper 21 and the discharge port 33. I have.

FIGS. 4 to 10 show the CPU of this embodiment.
10 is a flow showing a main part of the control operation of FIG. 10, and the operation of the present embodiment will be described below based on this flow.

First, when the power is turned on, the CPU 10
Processes the steps S1 to S3 shown in FIG. 4 and determines the state of the printing system 20 at the time of the previous power-off from the flags CEF, CAF and PAF held in the SRAM 13. Specifically, if the CPU 10 determines in step S1 that “CEF = 1”, that is, that the cutter 26 has an operation abnormality at the time of power-off, the CPU 10 advances the process to step S15 in FIG. 5 and executes a cutter operation abnormality countermeasure process. If it is determined in step S2 that "CAF = 1", that is, it is determined that the cutter is operating at the time of power-off, the process proceeds to step S23 in FIG. 6, and the cutter operation interrupted by the power-off is restarted. In step S3, "PAF = 1 ", that is, if it is determined that printing is being performed at the time of power-off,
In step S200, the recording paper recorded by the printing operation interrupted by the power-off is discharged to prepare for the next printing operation.

If "NO" is determined in any of the above steps S1 to S3, the CPU 10 advances the processing to step S4. In this S4 step, the CPU 10
Determines the setting state of the recording paper 21 in the printing system 20. More specifically, when the recording paper 21 is set in the printing system 20 as shown in FIG. 3, the first and second sensors 29 and 30 are both in the ON state. If the outputs of the sensors 29 and 30 are detected, and if either one of the sensors is in the OFF state, it is determined that the recording paper is not set, and the notification circuit 15 is driven in step S5 to cause an error in the recording paper. After notifying the fact, the process proceeds to step S100 shown in FIG. 7, and enters a standby state.

On the other hand, in step S4, the CPU 10
When it is determined that both the first and second sensors 29 and 30 are in the ON state, in steps S6 to S14, the recording paper 21 determined to have been set in step S4 described above.
The set state of is adjusted to the correct set state. That is, S4
In the step, both the first and second sensors 29 and 30 are O
Even in the case of the N state, the leading end of the recording paper 21 is moved to the second sensor 30 and the cutter 26 as shown by the broken line in FIG.
When the recording paper 21 is fed in such a state, the recording paper 21 cannot be cut by the cutter 26. Process steps.

In steps S6 to S10, the second sensor 30 cannot detect the recording paper 21. That is, whether the leading end of the recording paper 21 is located upstream of the second sensor 30, or Distance L between 30 and outlet 33
Give feedback (rewind) for one minute. In particular,
In step S6, the CPU 10 clears the counter FDCNT for counting the feed or feedback amount of the recording paper in the SRAM 13, and in the subsequent step S7, causes the motor control unit 22 to feed back the recording paper 21 by a predetermined unit length. Under the control, a predetermined amount of feedback pulse is supplied to the stepping motor 23. In the next S8 step, the CPU 10
The amount fed back in 7 steps is calculated by the counter F
Add to DCNT. In the subsequent steps S9 and S10, the CPU 10 determines whether the output of the second sensor 30 has been turned off and whether the value of the counter FDCNT has become greater than the distance L1 between the second sensor 30 and the outlet 33, respectively. And S7 to S10 until “YES” is determined in any of the steps S9 and S10.
Repeat the steps.

On the other hand, if "YES" is determined in any of the steps S9 and S10, the CPU 10
In steps S11 to S14, the recording paper 21 is fed (sent) by the distance L1 between the second sensor 30 and the discharge port 33. Specifically, in step S11, C
The PU 10 clears the counter FDCNT, and proceeds to S1
In two steps, the motor control unit 22 is controlled to feed the recording paper 21 by a predetermined unit length, and the stepping motor 23 is supplied with a predetermined amount of feeding pulses. In the next S13 step, the CPU 10 determines the amount fed in the above S12 step as the above-mentioned counter FD.
Add to CNT. In the following S14 step, the CPU 1
A value of 0 determines whether the value of the counter FDCNT is greater than the distance L1 between the second sensor 30 and the outlet 33, and repeats the steps S12 to S14 until it determines "YES". On the other hand, if “YES” is determined in the step S14, the CPU 10 advances the processing to the step S100 shown in FIG. 7, and enters a standby state.

Next, in step S1, "CEF =
1 ", that is, the processing of steps S15 to S21 in FIG. 5 when it is determined that the cutter 26 has malfunctioned at the time of power-off.

In step S15, the CPU 10
The motor control unit 22 is controlled so as to supply a cut (R) signal to the motor 24, and starts the reverse movement to return the circular blade 2 to the home position. In the following S16 step, the CPU 10 starts the time counting by the timer circuit 14, and then in step S17, C
The PU 10 determines whether 100 ms has elapsed since the start of the time count, and executes the processing in S1 after 100 ms has elapsed.
Proceed to step 8. This 100 ms wait is based on the S
After starting the reverse movement of the circular blade 2 in 15 steps, 1
Since the rush current generated within 00 ms is equal to or greater than the lock current detected in the next step S18, it is intended to avoid detection of confusion with this lock current.

In step S18, the CPU 10 determines that the current detection circuit 27 has the predetermined value (280 mA in this embodiment).
It is determined whether or not the above lock current has been detected. The following S
In step 19, the CPU 10 determines whether or not one second or more has elapsed since the start of the time count in step S16.

The determination in steps S18 and S19 is for determining whether or not the return movement operation has stopped during the return of the circular blade 2 to the home position.
In other words, when there is no problem at all, the circular blade 2 is 9
The movement from the right end of the horizontally long opening 3 to the home position is completed within 00 ms, and the lock current is detected by the current detection circuit 27 due to the stop of the movement of the circular blade 2 accompanying the return to the home position within 900 ms. . Therefore, the fact that the lock current is not detected in the step S18 within the above one second indicates the occurrence of an abnormality such as the occurrence of an abnormality in the current detection circuit 27.
In step S22, an abnormal process related to the cutter 26 is executed.

In step S20, the CPU 10 sets the DC
The motor control unit 22 is controlled so that the supply of the cut (R) signal to the motor 24 is stopped, and the backward movement of the circular blade 2 ends. In the following S21 step, the CPU 10 notifies the abnormality of the cutter 26 with the notification circuit 15, and thereafter, in S22.
After setting the flag CEF indicating a cutter abnormality in the step, the process proceeds to the step S100 shown in FIG. 7, and enters a standby state.

On the other hand, if the lock current is detected within one second from the start of the time count in step S18, the process proceeds to step S226 in FIG. A process for positioning the leading end of the paper 21 is performed.

FIG. 6 shows that “CAF =
1 ", that is, steps S23 to S32 executed when it is determined that the cutter 26 was operating at the time of power-off.

In steps S23 to S30, as in steps S15 to S22 in FIG.
The return of the circular blade 2 to the home position is performed, and if an abnormality occurs during the return movement operation, a cutter abnormality is notified and a flag CEF indicating the cutter abnormality is set, and the process is shown in FIG. The process proceeds to step S100, and enters a standby state.

On the other hand, if the lock current is detected within one second from the start of the time count in step S24 in step S26, the CPU 10 stops supplying the cut (R) signal to the DC motor 24 in step S31. Then, the motor control unit 22 is controlled so as to end the backward movement of the circular blade 2, and after resetting the flag CEF indicating the cutter abnormality in step S32, the process proceeds to step S200 shown in FIG. Move on to

That is, when the power is turned off while the cutter 26 is operating, and then the power is restored, the cutting operation is executed again from the beginning after the circular blade 2 is once returned to the home position.

FIG. 7 is a flow chart showing the processing at the time of standby. At the time of standby, the CPU 10 first determines whether or not the setting operation of the recording paper 21 has been performed in step S100. Specifically, the CPU 10 monitors the outputs of the first and second sensors 29 and 30 and, when detecting that both outputs of the sensors have changed from OFF to ON, the recording paper 21 has been replaced. The processing proceeds to step S200 of the cutting operation shown in FIG.
Of the recording paper 21 after the cutting, and a process for positioning the leading end of the recording paper 21 at the discharge port 33 which is a regular standby position.

In the next step S101, the CPU 10
Determines whether or not the manual cut key of the operation unit 35 has been operated, and if determined to be “YES”, in the subsequent S102 step, the CPU 10 does not set the flag HCF indicating whether or not the cut operation in the SRAM 13 is possible. Determine whether In this S102 step, "N
If it is determined to be "O", the process proceeds to S during the cutting operation shown in FIG.
Proceed to step 207. That is, when the flag HCF is set, a printing operation described later (FIG. 1)
As is clear from the description of 0), since the cutting operation of the recording paper 21 after printing on the recording paper 21 in the page unit is not performed and the page separation line is printed, the recorded recording paper 21 is printed. Then, a disconnection process is performed on 21.

On the other hand, in step S102, "YE
If the determination is "S" or if "NO" is determined in step S101, the process proceeds to step S103.
Determines whether there is a need to print facsimile reception data based on reception or printing based on a copy operation request from the operation unit 35. If there is a need, the process determines in step S300 shown in FIG. The process proceeds to the step, and the printing operation is executed. In step S103 above,
If the determination is NO, the CPU 10 returns the process to the step S100. That is, if there is no setting of the recording paper 21, the input of the manual cut key, or the print request during the standby shown in FIG. The step S103 is repeated.

FIGS. 8 and 9 are flowcharts showing the cutting operation.

First, the CPU 10 sets a flag CAF indicating that the cutter is operating in step S200, and in steps S201 to S205, the recording paper 21 is set.
Is fed by the distance L2 between the thermal head 19 and the cutter 26. This is a process for sending the cutting position of the recording paper after printing and recording to the position of the cutter 26. Specifically, in step S201, the CPU 10
The counter FDCNT for counting the feed or feedback amount of the recording paper in the AM 13 is cleared, and the subsequent S2
In step 02, the motor control unit 22 is controlled to feed the recording paper 21 by a predetermined unit length, and the stepping motor 23 is supplied with a predetermined amount of feed pulses. In the next step S203, the CPU 10
The amount fed in step S202 is added to the counter FDCNT. In the following S204 and S205 steps, the CPU 10
Whether or not the output of the counter has turned OFF and the above counter FDC
It is determined whether or not the value of NT is greater than the distance L2, and the steps S202 to S205 are repeatedly performed until “YES” is determined in either the step S204 or the step S205.

Then, in step S204, "YE
If S "is determined, that is, it is determined that the recording paper 21 does not exist, the CPU 10 advances the process to step S206, controls the notification circuit 15 to notify the recording paper 21 of an error, and returns to the above-described standby state. If "YES" is determined in the step S205, it means that the feeding of the recording paper 21 for L2 is completed, and the process is performed in S207.
Proceed to

In steps S207 to S212, the above S
The cutter 26 is driven to cut the recording paper 21 fed in the processing of steps 201 to S205. In particular,
In step S207, the CPU 10 controls the motor control unit 22 to supply a cut (F) signal to the DC motor 24, and starts forward movement to move the circular blade 2 to the left end of the horizontally long opening 3. In the following S208, the CPU 1
A value of 0 causes the timer circuit 14 to start time counting. Next, in step S209, the CPU 10
The presence or absence of the recording paper 21 is determined similarly to the step S204,
If it is determined that the recording paper 21 is present, the process proceeds to S21.
In step 0, the CPU 10 determines whether or not 100 ms has elapsed since the start of the time count as in step S17, and after 100 ms has elapsed, the process proceeds to step S211. This S211 step and the next S21
In two steps, the CPU 10 executes the above S18 and S19
Similarly to the step, it is determined whether or not the current detection circuit 27 has detected the lock current of the predetermined value (280 mA in this embodiment) or more, and whether or not one second or more has elapsed since the start of the time count in the step S208. Is determined.

The determination in steps S211 and S212 determines whether or not the movement of the circular blade 2 to the horizontally long opening 3 has been accurately detected. That is, when there is no trouble, the circular blade 2 completes the movement from the home position to the left end of the horizontally long opening 3 within 900 ms, and stops the movement of the circular blade 2 accompanying the movement to the left end within 900 ms. As a result, the lock current is detected by the current detection circuit 27. Therefore, within the above one second, S211
The fact that the lock current is not detected in the step indicates that an abnormality has occurred in the current detection circuit 27 and the arrival of the circular blade 2 at the left end cannot be detected. In this case, the steps S213 to S215 are performed. In, an abnormal process relating to the cutter 26 is executed.

In the step S213, the CPU 10
The motor control unit 22 is controlled so that the supply of the cut (F) signal to the C motor 24 is stopped, and the forward movement of the circular blade 2 ends. In the following S214 step, the CPU 10
Notifies the abnormality of the cutter 26 by the notification circuit 15, and then sets a flag CEF indicating the abnormality of the cutter in step S215, and then returns to the standby state shown in FIG.

On the other hand, in step S209, "
If “YES” is determined, the CPU 10 determines in step S216 that the DC motor 24
The motor control unit 22 is controlled so that the supply of the cut (F) signal to the controller is stopped, and then the process proceeds to step S206.

In step S211, "
If "YES" is determined, the CPU 10 determines in step S217 whether or not the lock current detection in step S211 is a point in time at least 0.5 seconds after the start of the time count in step S208. If there is no hindrance, use a circular blade 2
The minimum time required to move from the home position to the left end of the horizontal opening 3 is 500 ms. That the lock current is detected by the current detection circuit 27 within this 500 ms means that the circular blade 2 Before reaching the left end, it can be determined that the circular blade 2 is abnormally stopped due to some cause, for example, the recording paper 21 getting stuck. Therefore, S217
If “NO” is determined in the step, the CPU 10
Advances the process to step S213, and executes an abnormal process related to the cutter 26.

On the other hand, in step S217, "YE
If the determination is S ", that is, if the circular blade 2 has normally reached the left end of the horizontally long opening 3, the CPU 10 proceeds to S21.
Proceeding to 8 steps, the motor control unit 22 is controlled to stop the supply of the cut (F) signal to the DC motor 24,
The process proceeds to S219 in FIG.

In steps S219 to S223 in FIG.
The CPU 10 executes the return of the circular blade 2 to the home position as in the above-described steps S23 to S27. When the CPU 10 determines “YES” in step S223 during the return operation, that is, when the lock current cannot be detected within one second due to an abnormality of the current detection circuit 27 after the start of the return operation to the home position. In step S224, the CPU 10
The motor control unit 22 is controlled so as to stop the supply of the cut (R) signal to the motor 24, and the process proceeds to step S214 in FIG. 8 to notify the cutter abnormality and set the flag CEF indicating the cutter abnormality. Thereafter, the process returns to the standby state shown in FIG. Further, when the lock current is detected in step S222, the CPU 10 advances the process to step S225, and determines whether or not the lock current detection is at the time when 0.5 seconds or more have elapsed after the start of the time count in step S220. In the case of 0.5 seconds or less, that is, circular blade 2
Before returning to the home position of the horizontally long opening 3, it is determined that the return of the circular blade 2 has abnormally stopped due to any cause, for example, the recording paper 21 has been caught, and the process proceeds to step S <b> 224. The generation process is performed, and the process returns to the standby state shown in FIG. On the other hand, if the CPU 10 determines in step S25 that the time is 0.5 seconds or longer, that is, determines that the circular blade 2 has returned to the home position normally, the CPU 10 advances the process to step S226.
The motor control unit 22 is controlled to stop supplying the cut (R) signal to the DC motor 24, and the process proceeds to step S227.

In step S227, the CPU 10 resets the flag CEF indicating a cutter abnormality, and then resets the flag C2.
By processing 28 steps or less, the recording paper 21 is positioned so that the leading end of the cut recording paper 21 is positioned at the discharge port 33.
Feed.

In step S228, the CPU 10 feeds back the recording paper 21 by the distance L3 between the second sensor 30 and the cutter 26, thereby pulling the leading end of the cut recording paper 21 back to the position of the second sensor 30. Note that the processing in step S228 is performed in steps S6 to S in FIG.
Since the steps are the same except that the feedback distance is different from the 10 steps, the detailed description is omitted here.

In the next step S229, the CPU 10
Determines whether the output of the second sensor 30 is OFF. This step S229 is performed in step S22.
This is for determining whether or not the feedback of the recording paper 21 in the eight steps has been completed normally. If the determination is “NO”, that is, if the output of the second sensor 30 is ON, the recording is performed for some reason. It is determined that the paper 21 has jammed between the second sensor 30 and the cutter 26, and in step S230, the notification circuit 15 notifies the user of the jam, and then the process proceeds to step S233.

On the other hand, if "YES" is determined in the step S229, the CPU 10 determines in the step S231 that
The recording paper 21 is moved to the distance L4 between the second sensor 30 and the discharge port 33.
The leading end of the recording paper 21 is positioned at the discharge port 33 by feeding the recording paper 21 for a long time. The processing in step S231 is the same as the above-described steps S11 to S14 in FIG. 4 except that the feed distance is different, and thus detailed description is omitted here. Thereafter, in step S232, the CPU 10 resets a flag HCF indicating whether or not a cutting operation in response to the manual cut key operation has been performed, and then proceeds to step S232.
Flag CAF indicating that the cutter is operating in step 233
After resetting, the process returns to the standby state shown in FIG.

At the time of the step S232, the leading end of the recording paper 21 is located at the discharge port 33. Therefore, by resetting the flag HCF, the above-described operation when the manual cut key is operated in the standby state shown in FIG. The empty cut operation accompanying the execution of the cut operation shown in FIGS. 8 and 9 can be prevented.

FIG. 10 shows a printing operation when the CPU 10 determines in step S103 of FIG. 7 that printing of facsimile reception data based on reception or printing based on a copy operation request from the operation unit 35 is necessary. Is shown.

In step S300, the CPU 10 feeds back the recording paper 21 for the distance L5 between the thermal head 19 and the discharge port 33. That is, after the previous printing or cutting operation, the leading edge of the next page is located at the discharge port 33.
Pull back to position. Note that the processing in step S300 is the same as the above-described steps S6 to S10 in FIG. 4 except that the feedback distance is different, and thus detailed description is omitted here.

In the following S301 step, the CPU 10
Controls the recording control unit 18 and the motor control unit 22 to print the received data or print for the copy operation, and determines the end of the printing in the next step S302. When detecting the end of printing in step S302, the CPU 10 advances the processing to step S303.

In step S303, the CPU 10
It is determined whether a flag CFF indicating ON / OFF of the auto cutter function in the RAM 13 is set.
If “YES” is determined in the step S303, the CPU 10 determines whether the length of one page printed in the sub-scanning direction in the steps S301 and S302 in the step S304 is 40 mm or more. This judgment is 1
When the print length of a page is 40 mm or less, the length is short and the possibility of loss is high when cutting is performed. Therefore, this is performed to avoid this loss, and is always limited to a value of 40 mm. is not.

If "YES" is determined in the step S304, the CPU 10 advances the processing to the step S200 in FIG. 8 so as to cut the previously printed page portion.

On the other hand, if "NO" is determined in the step S303 or S304, the CPU 10 controls the recording control unit 18 to print a broken line indicating a page break on the recording paper 21 in a step S305. Next, in step S306, the CPU 10 sets a flag HCF indicating whether or not a cutting operation in response to the manual cut key operation is possible. By setting the flag HCF, when the manual cut key is operated in the standby state shown in FIG.
By executing the cutting operation shown in FIGS. 8 and 9 described above, the recording paper 21 can be cut at the position indicated by the broken line indicating the page break printed in step S305.

In the following S307 step, the CPU 10
Feeds the recording paper 21 by the distance L5 between the thermal head 19 and the discharge port 33, and then returns to the standby state shown in FIG. That is, the paper is sent out such that the position where the broken line indicating the page break is printed is located at the discharge port 33. Note that the processing in step S307 is the same as the above-described steps S11 to S14 in FIG. 4 except that the feed distance is different, and a detailed description thereof will be omitted here.

According to the present embodiment, even if a power failure or the like occurs during an operation such as a cut, the operation processing at the time of the power failure is properly terminated when the power is turned on again after the restoration of the power failure, and then the normal operation is terminated. (Standby state), it is possible to avoid adversely affecting the reception processing and the like after the recovery from the power failure, and to provide a highly reliable operation.

Further, even when the automatic cut operation for each page at the time of printing accompanying the reception or copy operation is not selected and the printing of the page separation line is selected, the cutter on the page separation line is cut by the manual cut key. 26, it is possible to cut the recording paper 21 in arbitrary page units, and to cut by the manual cut key, a page separation line is printed, and
Since it is limited to the case where it is not cut and remains in the apparatus, it is possible to prevent the empty cut by the manual cut key operation.

Further, after the new recording paper 21 is set,
Since the recording paper 21 is fed out after being pulled back by a predetermined amount once, the recording paper 21 can be automatically returned to the normal setting state even when the setting state of the recording paper 21 is not normally performed, and the usability is improved. improves.

[0065]

According to the present invention, even when a new recording paper 21 is set with the power supply turned off, the recording paper is fed out after the leading end of the recording paper is once pulled back by a predetermined amount in accordance with the power supply being turned on again. Even when the setting state is not performed normally, the normal setting state can be automatically returned, and the usability is improved.

[Brief description of the drawings]

FIG. 1 is a block diagram illustrating a circuit configuration according to an embodiment of the present invention.

FIG. 2 is a schematic diagram for explaining a slide type cutter.

FIG. 3 is a schematic diagram illustrating a configuration of a printing system according to the present exemplary embodiment.

FIG. 4 is a flowchart showing the operation of the present embodiment.

FIG. 5 is a flowchart showing the operation of the present embodiment.

FIG. 6 is a flowchart showing the operation of the present embodiment.

FIG. 7 is a flowchart showing the operation of the present embodiment.

FIG. 8 is a flowchart showing the operation of the present embodiment.

FIG. 9 is a flowchart showing the operation of the present embodiment.

FIG. 10 is a flowchart showing the operation of the present embodiment.

[Explanation of symbols]

 Reference Signs List 10 CPU 11 ROM 13 SRAM 20 Printing system 21 Recording paper 26 Cutter

──────────────────────────────────────────────────続 き Continuation of the front page (56) References JP-A-4-11448 (JP, A) JP-A-4-360453 (JP, A) JP-A-59-190774 (JP, A) JP-A-60-1985 105368 (JP, A) JP-A-59-131262 (JP, A) (58) Fields investigated (Int. Cl. ⁷ , DB name) H04N 1/00 B65H 43/04

Claims (1)

(57) [Claims] 1. A recording paper discharge port formed in a housing, a cutter means for cutting a roll-shaped recording paper, a detection means for detecting the presence or absence of a recording paper, and a recording means for recording on the recording paper are arranged in this order. In addition, the leading end of the roll-shaped recording paper mounted on the upstream side of the recording means can be transferred in the forward or reverse direction in the transport path passing through the recording means, the detection means, the cutter means, and the discharge port. It has a transfer means and a control means for controlling each of the above means, and is recorded by the cutter means.
Automatic cutting mode that automatically cuts only recording paper in page units
Line printing mode that prints a page separator line instead of
In selectively switchable facsimile apparatus and a de, said control means is responsive to power-on to control the transport means to feed back the recording paper tip in the recording means side, then recorded by the detection means It is determined that there is no paper , or the distance between the detection means and the discharge port
It is the above distance provided that it is fed back by the minute
Only facsimile apparatus and controls the moving means so as to feed the discharge port direction.