JPH07123197A - Facsimile equipment - Google Patents

Abstract

PURPOSE:To extend a recording range of recording paper in the subscanning direction from a range specific to a printer by providing a control means operating a carrying means in reverse direction when a tip of carried sheet recording paper reaches a predetermined position so as to move the recording paper in the reverse direction by a predetermined distance to the facsimile equipment. CONSTITUTION:Upon the detection of start of carrying of a carrying means carrying sheet recording paper, feeding of a paper feed means starts and when the tip of the recording paper reaches a predetermined position, the carrying means operates in the reverse direction and the recording paper moves from the prescribed position in the reverse direction by a predetermined distance. That is, a printer control section 30 detects reversing of a carrier motor 31 at paper feed to execute paper feed of an automatic paper feeder to synchronize the carrying of the printer main body 21 with the paper feeding and the recording start position of the recording paper is deviated toward the tip of the recording paper from the recording start position in the recording enable area of the printer main body 21 so as to record a picture from the tip position of the recording enable area of the facsimile equipment.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a facsimile having a built-in printer unit for inputting print data in character units, inputting / outputting predetermined control data, and further carrying a sheet-like recording paper. Regarding the device.

[0002]

2. Description of the Related Art Generally, a facsimile apparatus for transmitting and receiving an image is equipped with a thermal recording apparatus or an image recording apparatus such as a laser printer apparatus for recording an image such as a received image.

Since the thermal recording apparatus has a relatively simple structure and can be constructed at a low cost and is suitable for downsizing, it is widely used in a relatively inexpensive facsimile machine of a popular type or a small machine type.

However, when this heat-sensitive recording apparatus is used, due to the characteristics of the heat-sensitive recording paper used as recording paper,
There is a problem that the image is easily deteriorated by heat, friction, chemicals, oxidation, etc., and the storability of the recorded image is poor.

Therefore, as shown in FIG. 14, when a relatively inexpensive printer device PRN, which is commercially available as a hard copy device for a personal computer or the like, is incorporated into a facsimile device FX as an image recording device, the storability of recorded images is improved. It is considered that a good facsimile machine can be realized at a relatively low cost.

[0006]

However, when incorporating a commercially available printer PRT, for example, the following inconvenience occurs.

That is, for example, as shown in FIG.
The recordable area of the printer PRT for the A4 size recording paper PA is the area PRa shown by the broken line in the figure, whereas the recordable area set in the facsimile machine is shown by the chain double-dashed line in the figure. Area FXa.

As described above, since the size of the recordable area of the printer PRT in the sub-scanning direction is small, the entire received image cannot be recorded.

The present invention has been made in view of the above circumstances, and an object thereof is to provide a facsimile apparatus capable of appropriately recording and outputting a received image or the like by a built-in printer apparatus.

[0010]

SUMMARY OF THE INVENTION The present invention has a built-in printer apparatus which is provided with a conveying means for conveying recording data in character units, inputting / outputting predetermined control data, and conveying sheet recording paper. On the other hand, the sheet feeding means for feeding the sheet-like recording paper sheet by sheet to the conveying means, the conveying start detecting means for detecting the conveying start state of the conveying means, and the conveying start detecting means start conveying. When the state is detected, a control means for starting the paper feeding operation of the paper feeding means is provided.

In addition to inputting record data in character units, inputting and outputting predetermined control data,
A built-in printer device having a conveying means for conveying the sheet-like recording paper is provided, and a feeding means for feeding the sheet-like recording paper one by one to the conveying means and a conveyance start state of the conveying means are provided. When the transport start detecting means detects the transport start state, the transport start detecting means starts the sheet feeding operation of the sheet feeding means, and the leading end of the sheet recording paper transported by the transport means is at a predetermined position. When the above-mentioned condition is reached, the conveying means is operated in the reverse direction to move the sheet-shaped recording paper from the predetermined position in the reverse direction by a predetermined distance.

In addition to inputting recording data in character units, inputting and outputting predetermined control data,
A built-in printer device having a conveying means for conveying the sheet-like recording paper is provided, and a feeding means for feeding the sheet-like recording paper one by one to the conveying means and a conveyance start state of the conveying means are provided. Conveyance start detecting means for detecting, recording paper trailing edge detecting means for detecting the trailing edge of the sheet-like recording paper immediately before the printing position of the printer device, and the feeding start detecting means for detecting the feeding start state When the leading edge of the sheet-like recording paper conveyed by the conveying means reaches a predetermined position, the conveying means is operated in the reverse direction to reverse the sheet-like recording paper from the predetermined position. When a recording data transfer to the printer device is started after a predetermined distance in the direction, and the recording paper trailing edge detecting means detects the trailing edge, the image recording operation for one page is not completed. , To the printer apparatus, in which a control means for forcibly execute recording operation of the image that is not the recording end.

In addition to inputting recording data in character units, inputting and outputting predetermined control data,
A built-in printer device having a conveying means for conveying the sheet-like recording paper is provided, and a feeding means for feeding the sheet-like recording paper one by one to the conveying means and a conveyance start state of the conveying means are provided. Conveyance start detecting means for detecting, recording paper trailing edge detecting means for detecting the trailing edge of the sheet-like recording paper immediately before the printing position of the printer device, and signal masking means for masking the output of the recording paper trailing edge detecting means. When the carrying start detecting means detects the carrying start state, the paper feeding operation of the paper feeding means is started, and when the leading end of the sheet-like recording paper carried by the carrying means reaches a predetermined position, the carrying means is operated. After operating in the reverse direction and moving the sheet-shaped recording paper from the predetermined position in the reverse direction by the predetermined distance, the transfer of the recording data to the printer device is started, and the recording paper trailing edge detecting means detects the trailing edge. In this state, when the image recording operation for one page is not completed, the signal mask means masks the detection signal of the recording paper trailing edge detection means, and the recording is not completed for the printer device. It is provided with a control means for transferring image recording data.

[0014]

Therefore, since the recording range of the sheet-shaped recording paper in the sub-scanning direction can be widened from that specific to the printer device, the received image or the like can be appropriately recorded. Further, since the recording operation of the printer device is forcibly set to the operation corresponding to the recording portion of the facsimile device, the same recording operation as the normal recording portion can be performed.

[0015]

Embodiments of the present invention will now be described in detail with reference to the accompanying drawings.

FIG. 1 shows a part of a recording / transporting system of a printer incorporated in a facsimile apparatus according to an embodiment of the present invention.

In FIG. 1, a large number of sheet-shaped recording sheets PP are placed on the document table 1, and the uppermost sheet is separated one by one by the sheet feeding roller 2 and is arranged in the conveying direction. It is sent out and sent to the guide member 3.

The recording paper PP that has passed through the guide member 3 is conveyed by the conveying roller 4 toward the head 5a of the print head unit 5, and an image is recorded by the head 5a in units of a predetermined number of lines. Then, the recording paper PP on which the image recording is completed is ejected to the paper ejection stacker 7 by the paper ejection roller pair 7. The paper sensor 8 is for detecting the recording paper PP.

Here, the document table 1 and the paper feed roller 2 are
A paper feed motor (not shown) that constitutes the automatic paper feed mechanism and drives the paper feed roller 2 is drive-controlled by the facsimile apparatus.

The entire print head unit 5 is mounted on a carriage mechanism (not shown), and the carriage mechanism reciprocates the recording paper PP in the main scanning direction. Therefore, when the carriage mechanism moves once, the number of recording dots of the head 5a (for example,
A recorded image of a line of 64 dots) is recorded.

FIG. 2 shows an example of the construction of a facsimile machine which incorporates the printer shown in FIG.

In FIG. 1, a system control unit 10 performs control processing of each unit of the facsimile apparatus, facsimile transmission control procedure processing, and operation control of the printer apparatus. The system memory 11 includes a system control unit 10. Stores a control processing program executed by the control program and various data necessary for executing the processing program, and constitutes a work area of the system control unit 10. The parameter memory 12 is used for the group 3 facsimile apparatus. For storing various information unique to the.

The scanner 13 is for reading an original image at a predetermined resolution, and the operation display section 14 is for operating this facsimile apparatus. It is operated by various operation keys and various display devices. Become.

The encoding / decoding unit 15 is for encoding and compressing the image signal and for decoding the encoded and compressed image information into the original image signal.
Is for storing a large number of coded and compressed image information.

The group 3 facsimile modem 17 is for realizing the modem function of the group 3 facsimile, and is a low speed modem function (V.21 modem) for exchanging transmission procedure signals and mainly exchanging image information. High-speed modem function (V.33 modem,
V. 29 modem, V.29. 27ter modem etc.). The network control device 18 is for connecting the facsimile device to a public telephone line network, and has an automatic call originating / receiving function.

The printer interface 19 is for exchanging various data with the built-in printer device 20. In the printer device 20, the printer body 21 is for performing a recording operation,
The automatic paper feed mechanism 22 is for supplying recording paper to the printer body 21.

These system control unit 10, system memory 11, parameter memory 12, scanner 13, operation display unit 14, encoding / decoding unit 15, image storage device 1
6, group 3 facsimile modem 17, network control device 1
The printer interface 19 and the printer interface 19 are connected to the system bus 23, and data is exchanged between these elements mainly through the system bus 23.

Data is exchanged directly between the network controller 18 and the group 3 facsimile modem 17. Further, the operation of the automatic paper feed mechanism 22 is controlled by the system controller 10.

FIG. 3 illustrates a main part of a control system of the printer body 22.

In the figure, a printer control section 30 is for controlling the operation of the printer main body 22, and exchanges various data with the printer interface 16.

When the recording paper PP is brought into the carrying state, the printer control section 30 outputs a driving signal LF to the carrying motor 31 serving as a driving source of the carrying roller 4 at a predetermined timing.
When A, LFB, LFAB, LFBB (forward rotation direction and reverse rotation direction) are formed and a data recording state is set, drive signals CRA, CRB, CRAB, and CRBB for driving the carriage motor 32 that is the drive source of the carriage mechanism are generated. Along with the formation, the print data DR corresponding to the print data input via the printer interface 16 is formed and output to the printing unit 33.

Drive signals LFA, LFB, LFAB, LF
BB is applied to the carry motor monitoring unit 34, and the drive signal C is added.
RA, CRB, CRAB, CRBB are added to the carriage motor monitoring unit 35.

The carry motor monitoring section 34 includes a carry motor 31.
For controlling the operating state of the carry motor 31, and the output signal thereof is driving signals LFA ′, LFB ′, LFAB ′, LFBB ′ for driving the carry motor 31. Motor drive unit 36
Added to. Further, the detection signal FR indicates that the transport motor 31
Is a signal that is set to a logical H level in the state where the drive motor 31 is driven in the normal rotation direction.
These signals are signals set to a logic H level when driven in the reverse direction, and these detection signals FR and RV are applied to the system control unit 10 via the printer interface 16. . Further, the control signals LFS and LFR output from the system control unit 10
Is added to the carry motor monitoring unit 34 via the printer interface 16.

The carriage motor monitoring section 35 is for monitoring the operating state of the carriage motor 32.
The drive signals CRA, CRB, CRAB, and CRBB are output as they are to the motor drive unit 37 for driving the carriage motor 32. In addition, the detection signal CT
Is a signal that is set to a logical H level when the carriage motor 32 is driven in the forward rotation direction or the reverse rotation direction. This detection signal CT is output to the system control unit 10 via the printer interface 16. Has been done.

The paper sensor 8 sets the detection signal PE1 to the logical H level when the recording paper PP is detected, and sets the detection signal PE1 to the logical level L when the recording paper PP is not detected. The detection signal PE1 is output to the system control unit 10 via the printer interface 16 and is also applied to one input terminal of the OR circuit 38.

The control signal PE2 output from the system controller 10 is applied to the other input terminal of the OR circuit 38 via the printer interface 16. The output signal of the OR circuit 38 is added to the printer control unit 30 as the detection signal PEa.

FIG. 4 shows an example of the carry motor monitoring unit 34.

In the figure, the drive signal LFA includes a switching input end 40aa and a switching input end 40 of the switching circuit 40 of four circuits.
ab and the data input terminal D of the flip-flop 41
In addition, the drive signal LFB is applied to the switching input terminal 40ba of the switching circuit 40, the switching input terminal 40db, and the data input terminal D of the flip-flop 42, and the driving signal LFB
FAB is applied to the switching input terminal 40ca of the switching circuit 40, the switching input terminal 40cb, and the trigger input terminal T of the flip-flop 42, and the drive signal LFBB is applied to the switching circuit 4
The switching input terminal 40da of 0, the switching input terminal 40bb, and the trigger input terminal T of the flip-flop 41 are added.

In the switching circuit 40, the control signal LFR has a logic L level.
Level and the control signal LFS is at a logical L level, the common connection terminals 40a, 40b, 40c, 40d.
The switching input terminals 40aa, 40ba, 40ca,
When the control signal LFR is at the logic H level and the control signal LFS is at the logic L level, the common connection terminals 40a, 40b, 40c, 40d are connected to the switching input terminals 40ab, 40bb, 40cb, 40db, respectively. When the control signal LFS is in the logic H level regardless of the logic HL level of the control signal LFR connected, the common connection terminals 40a, 40b, 40c, 40d are fixed to the logic L level, respectively. The signals at the common connection ends 40a, 40b, 40c, 40d are drive signals LFA ', LFB', LFAB ', LFBB', respectively.
Is output to the next stage circuit.

The flip-flop 41 has a drive signal LFB.
The value of the drive signal LFA is sampled at the timing when B rises to the logical H level, and its output is output to the next stage circuit as the detection signal FR.

The flip-flop 42 has a drive signal LFA.
The value of the drive signal LFB is sampled at the timing when B rises to the logical H level, and the output thereof is output to the next stage circuit as the detection signal RV.

Here, the carry motor 31 is a four-phase step motor, and in the present embodiment, this four-phase step motor is driven by a two-phase excitation method. Therefore, when the transport motor 31 is driven in the forward rotation direction, as shown in FIG.
As shown in (d), the drive signals LFA, LFB, LF
The levels of AB and LFBB change.

In this case, the drive signal LFBB is logic H.
At the timing of rising to the level, the drive signal LFA
Is at the logic H level, the flip-flop 4
1 becomes a logic H level state, and as a result, the detection signal FR becomes a logic H level, as shown in FIG.

At the timing when the drive signal LFAB rises to the logic H level, the drive signal LFB changes to the logic L level.
Since it is at the level, the flip-flop 42 is in the state of the logical L level, which causes the detection signal RV to be the logical L level as shown in FIG.

When the carry motor 31 is driven in the reverse direction, the levels of the drive signals LFA, LFB, LFAB, LFBB change as shown in FIGS. 6 (a) to 6 (d).

In this case, the drive signal LFBB is logic H.
At the timing of rising to the level, the drive signal LFA
Is at the logic L level, the flip-flop 4
1 becomes a logic L level state, and as a result, the detection signal FR becomes a logic L level as shown in FIG.

At the timing when the drive signal LFAB rises to the logic H level, the drive signal LFB changes to the logic H level.
Since it is at the level, the flip-flop 42 is in the state of the logical H level, which causes the detection signal RV to be the logical H level, as shown in FIG.

In this way, the logical values of the detection signal FR and the detection signal RV are set.

Further, when the control signal LFR is at the logic L level and the control signal LFS is at the logic L level, the switching circuit 40 causes the common connection terminals 40a, 40b, 40c,
40d are switching input terminals 40aa, 40ba, 4 respectively.
When connected to 0ca and 40da, the drive signals LFA, LFB, LFAB and LFBB are output as they are as drive signals LFA ', LFB', LFAB 'and LFBB'.

Therefore, in this state, the printer controller 30 controls the operation of the carry motor 31.

On the other hand, when the control signal LFR is at the logic H level and the control signal LFS is at the logic L level, the switching circuit 40 causes the common connection terminals 40a, 40b, 40c,
40d are switching input terminals 40ab, 40bb, 4 respectively.
When connected to 0 cb and 40 db, the drive signal LFA is output as the drive signal LFA ′, and the drive signal LF is output.
The drive signal LFBB is output to B ′ and the drive signal LFA is output.
The drive signal LFAB is output to B ′, and the drive signal LFB is output.
The drive signal LFB is output to B ′.

Therefore, as shown in FIGS. 7A to 7H, the drive signals LFA, LFB, LFAB, LFBB are generated.
Is changing the level in the normal drive state, the drive signals LFA ′, LFB ′, LFAB ′, LFBB ′ are
The level is changed so that the transport motor 31 is rotated in the reverse direction.

That is, in this case, the conveyance motor 31 is driven and controlled in the direction opposite to the direction controlled by the printer control unit 30.

In this way, the system controller 10 can switch the drive direction of the carry motor 31.

FIG. 8 shows an example of the carriage motor monitoring section 35.

In the figure, drive signals CRA, CRB,
CRAB and CRBB are added to the input terminal of the OR circuit 45, and the output of the OR circuit 45 is output to the next stage circuit as the detection signal CT.

Therefore, for example, the carriage motor 3
2 is a four-phase step motor, and in the present embodiment, when the four-phase step motor is driven by the two-phase excitation method, the carriage motor 32 is driven in the forward rotation direction.
As shown in (a) to (d), the drive signals CRA, CR
When the levels of B, CLAB and CRBB are changed, the state of the OR circuit 45 is always at the logical H level, so the detection signal CT is always at the logical H level.

When the carriage motor 32 is driven in the reverse direction, drive signals CRA, CRB, CRAB, CRBB are used.
6 is a level change of the drive signals LFA, LFB, LFAB, LFBB shown in FIGS. 6A to 6D, the OR circuit 45 is always at the logical H level in this case as well. The detection signal CT is always at the logical H level.

In this manner, the detection signal is output during the period during which the carriage motor 32 is driven in the forward direction and during the period in which it is driven in the reverse direction, that is, when the print head unit 5 is reciprocally driven by the carriage mechanism. CT holds a logic H level.

FIG. 10 shows an example of the processing executed by the printer control unit 30 when recording data on the recording paper PP of one page.

First, the front end of the recording paper PP is attached to the print head unit 5.
The head 5a is moved to the recording position to align the front end of the recording paper PP (process 101). Then, the print head unit 5 is reciprocally moved to repeat the recording operation for one line and the paper feeding operation for one line until the detection signal PEa becomes the logical L level or the recording data ends. Execute (processing loop of processing 102, 103, determination 104, 105).

Here, when the trailing edge of the recording paper PP passes through the paper sensor 8 and the detection signal PEa becomes the logical L level, and the result of judgment 104 is YES, the recording operation for one line is further executed. Later (process 106), the recording paper P at that time
The sheet P is discharged (process 107).

When the recording of the recording data for one page is completed and the result of the determination 105 is YES, the process proceeds to the processing 107 at that time and the recording paper PP is discharged.

FIG. 11 shows an example of the process (process 101) for aligning the page leading edge position.

First, the recording paper P inserted from the guide member 3
In order to position the tip of P on the surface of the transport roller 4,
The carry motor 31 is reversely driven for a predetermined time (process 20).
1). Next, the conveyance motor 31 is driven in the forward rotation direction for the number of steps corresponding to the distance from the contact position of the conveyance roller 41 to the position immediately before the head 5a (process 202).
In order to decelerate the recording paper PP, the carry motor 31 is rotated in the reverse direction (process 203).

While monitoring the detection signal PEa,
The transport motor 31 is driven in the forward direction until the leading edge of the recording paper PP reaches a predetermined position (process 204).

In this way, the printer control section 30
The transport motor 31 is reversely rotated twice before transporting the recording paper PP to a predetermined position. Further, the detection signal PEa is logic L
After changing to the level, the recording operation for one line is further performed.

Therefore, in this embodiment, when the first reverse rotation of the carry motor 31 at the time of paper feeding is detected, the automatic paper feeding mechanism 2
The paper feeding operation of the printer main body 21 and the paper feeding operation of the automatic paper feeding mechanism 22 are synchronized by executing the paper feeding operation of No. 2.

When the second reverse rotation of the transport motor 31 during paper feeding is detected, the transport motor 31 is rotated in reverse,
The recording paper PP is conveyed in the reverse direction, whereby the recording paper P is
The recording start position of P is displaced from the recording start position of the recordable area of the printer main body 22 toward the front end of the recording sheet PP, and an image is printed from the front end position of the recordable area FXa of the facsimile apparatus shown in FIG. I am trying to record it.

Further, if the recording data remains when the detection signal PE1 changes to the logical L level, the control signal PE2 is set to 1 as shown in FIGS.
By setting the logical H level for a period corresponding to one line and performing the recording operation for one line further than the recording end position of the recordable area of the printer main body 22, the recordable area FXa of the facsimile apparatus (see FIG. 15). The image is recorded up to the rear end position.

As described above, in this embodiment, the recordable area of the printer body 22 is enlarged in the sub-scanning direction (paper conveying direction) so that an image can be recorded in the recordable area FXa of the facsimile apparatus. I have to.

FIG. 13 shows a processing example of the system control unit 10 when recording an image for one page.

First, a paper feed command is output to the printer device 20 (process 301), and the process waits until the detection signal RV first becomes the logical H level (NO loop of decision 302). As a result, the printer control unit 30 reversely drives the carry motor 31 for a predetermined time in order to position the front end of the recording paper PP inserted from the guide member 3 on the surface of the carry roller 4, and the detection signal RV is logically H. When the level is raised and the result of determination 302 is YES, the automatic paper feed mechanism 22 feeds one recording paper PP (process 303).

Next, the process waits until the detection signal RV next becomes the logical H level (NO loop of decision 304). When the printer control unit 30 reverses the conveyance motor 31 in order to decelerate the recording paper PP, the detection signal RV rises to the logical H level, and the result of the judgment 302 becomes YES, the control signal L
FS is set to the logic H level, the transport motor 31 is stopped for a predetermined period of time T1 to stop the recording paper PP (process 305), and then the control signal LFR is set to the logic H level and the control signal LFS is set. It is set to the logical L level, and the transport motor 31 is rotated in the reverse direction for a predetermined time T2, and the recording paper PP is set.
The position of is moved in the opposite direction (process 306).

In this way, the print front end position is set to the head 5
When the position is aligned with a, a predetermined printing process is started (process 307) and a process of counting the number of reciprocations of the carriage motor 32 is started (process 308).

In this state, the change of the detection signal PE1 to the logic L level is monitored (NO loop of decision 309). When the detection signal PE1 changes to the logical L level and the result of the determination 309 becomes YES, at that time, the count value of the number of reciprocations of the carriage motor 32 and the number of recording lines of the image data are compared, and one page worth It is checked whether or not the image recording of is completed (decision 310).

When the result of this judgment 310 is NO, the control signal PE2 is set to the logic H level in order to execute the recording operation for one row (process 311),
Wait until the printing operation for the last line is completed (determination 312
NO loop), the printing operation for the last one line is completed, and when the result of determination 312 is YES, the control signal PE2 is set to the logic L level (process 313) and this process is completed. When the result of judgment 310 is YES,
Immediately end this processing.

The present invention can be similarly applied to the case where a printer device other than the printer device applied to the above-described embodiment is incorporated. Further, the present invention can be similarly applied to the group 4 facsimile apparatus.

[0079]

As described above, according to the present invention,
Since the recording range of the sheet-shaped recording paper in the sub-scanning direction can be widened from that specific to the printer apparatus, it is possible to properly record the received image and the like. Further, since the recording operation of the printer device is forcibly set to the operation corresponding to the recording portion of the facsimile device, the same recording operation as that of the normal recording portion can be achieved.

[Brief description of drawings]

FIG. 1 is a schematic diagram showing an example of a transport system of a printer device according to an embodiment of the present invention.

FIG. 2 is a block diagram showing a facsimile apparatus according to an embodiment of the present invention.

FIG. 3 is a block diagram showing a part of a control system of the printer device.

FIG. 4 is a block diagram showing an example of a carry motor monitoring unit.

5 is an operation waveform diagram showing an example of the operation of the apparatus of FIG.

FIG. 6 is an operation waveform diagram showing another example of the operation of the apparatus of FIG.

7 is an operation waveform chart showing still another example of the operation of the apparatus of FIG.

FIG. 8 is a block diagram showing an example of a carriage motor monitoring unit.

9 is an operation waveform diagram showing an example of the operation of the apparatus of FIG.

FIG. 10 is a flowchart showing a processing example of a printer control unit.

FIG. 11 is a flowchart showing an example of page leading edge alignment processing.

FIG. 12 is an operation waveform chart for explaining a recording operation at the trailing edge of a page.

FIG. 13 is a flowchart showing a processing example of a system control unit.

FIG. 14 is a schematic diagram showing an example of a facsimile device with a built-in printer device.

FIG. 15 is a schematic diagram showing the difference between the recordable area of the printer device and the recordable area of the facsimile device.

[Explanation of symbols]

 8 Paper Sensor 10 System Control Unit 19 Printer Interface 20 Printer Device 21 Printer Main Body 22 Automatic Paper Feeding Mechanism 30 Printer Control Unit 31 Conveyor Motor 32 Carriage Motor 34 Conveyor Motor Monitoring Unit 35 Carriage Motor Monitoring Unit

Claims (4)

[Claims] 1. A printer device having a conveying unit for inputting character-by-character recording data, inputting / outputting predetermined control data, and further conveying a sheet-shaped recording sheet, while the printer unit is provided with respect to the conveying unit. Sheet feeding means for feeding the sheet-like recording sheets one by one, a transport start detecting means for detecting a transport start state of the transport means, and a transport start state when the transport start detecting means detects a transport start state. A facsimile apparatus comprising control means for starting the paper feeding operation of the means. 2. A printer device having a conveying means for inputting recording data in character units, inputting / outputting predetermined control data, and conveying a sheet-like recording paper is provided inside the conveying means. Sheet feeding means for feeding the sheet-like recording sheets one by one, a transport start detecting means for detecting a transport start state of the transport means, and a transport start state when the transport start detecting means detects a transport start state. When the leading edge of the sheet-like recording paper conveyed by the conveying means reaches a predetermined position, the conveying means is operated in the reverse direction to reverse the sheet-like recording paper from the predetermined position. A facsimile apparatus comprising control means for moving a predetermined distance in a predetermined direction. 3. A printer device having a conveying means for inputting character-by-character recording data, inputting / outputting predetermined control data, and conveying a sheet-shaped recording sheet is provided on the other hand with respect to the conveying means. Sheet feeding means for feeding the sheet recording sheets one by one, a conveyance start detecting means for detecting a conveyance start state of the conveying means, and a trailing edge of the sheet recording sheet immediately before a printing position of the printer device. The recording paper trailing edge detecting means for detecting the start of the sheet-like recording paper and the conveying start detecting means for detecting the conveying start state start the paper feeding operation of the paper feeding means, and the leading end of the sheet-like recording paper conveyed by the conveying means is detected. When it reaches a predetermined position, the conveying means is operated in the reverse direction to move the sheet-shaped recording paper from the predetermined position in the reverse direction for a predetermined distance, and then the recording data is transferred to the printer device. First, when the image recording operation for one page is not completed in the state where the recording paper rear edge detection means detects the rear edge, the printer apparatus is forced to perform the recording operation of the image which has not been recorded. A facsimile apparatus comprising control means for executing the method. 4. A printer device having a conveying means for inputting character-by-character recording data, inputting / outputting predetermined control data, and conveying a sheet-shaped recording sheet is provided while the conveying means is provided with respect to the conveying means. Sheet feeding means for feeding the sheet recording sheets one by one, a conveyance start detecting means for detecting a conveyance start state of the conveying means, and a trailing edge of the sheet recording sheet immediately before a printing position of the printer device. A recording paper trailing edge detecting means, a signal masking means for masking the output of the recording paper trailing edge detecting means, and a feeding operation of the paper feeding means when the carrying start detecting means detects a carrying start state. When the leading edge of the sheet-like recording paper conveyed by the conveying means reaches a predetermined position, the conveying means is operated in the reverse direction to move the sheet-like recording paper from the predetermined position in the reverse direction by a predetermined distance. After the transfer, the transfer of the print data to the printer device is started, and when the image recording operation for one page is not completed in the state where the trailing edge of the recording paper is detected by the trailing edge detecting means, the signal masking means is used. A facsimile apparatus comprising a control means for masking a detection signal of the recording paper trailing edge detection means and for transferring recording data of an image which has not been recorded to the printer apparatus.