JPH01293345A - Image recorder - Google Patents

Abstract

PURPOSE:To correctly discriminate between the trailing edges of recording materials and their cut edges by arranging plural means, which detect the trailing edges of the recording materials, in the carrying direction downstream of cutters, and comparing the carrying length that plural second carrying means carry with the length of a carrying path between cutters and plural detecting means. CONSTITUTION:The cutters 26 and 66 are activated the instant the first carrying means 24 and 64 are driven so that the recording materials 20 and 22 are carried the distance corresponding to a specified size. Based on the carrying length of the second carrying means 28 and 68 and the length of the carrying path between the cutters 26 and 66 and detecting means 114 and 115, the trailing edges of the recording materials 20 and 22 are judged whether they have been detected or not; and the carrying length of the second carrying means 28 and 68 is the length measured from when the detecting signal of the detecting means 114 and 115 indicates the presence of the recording materials 20 and 22 after the cutters 26 and 66 are activated to when the signal indicates their absence. Thus, discrimination between the trailing edges of the recording materials and their cut edge are correctly made.

Description

DETAILED DESCRIPTION OF THE INVENTION [Field of Industrial Application] The present invention relates to an image recording device, and more particularly to an image recording device that records an image by pulling out a recording material from a length magazine corresponding to a specified size and cutting it with a cutter. Regarding equipment.

[Prior art] A recording material (for example, a photosensitive material or an image receiving material) is pulled out and cut to a length corresponding to a specified size, and an image exposed to the photosensitive material is transferred by heat development transfer. 2. Description of the Related Art Image recording devices that transfer images onto image-receiving materials are known.

In this type of image recording device, unexposed photosensitive material is wound up into a roll and stored in a magazine.
By specifying a recording size, the paper is sequentially pulled out from the outer periphery and cut by a cutter into a length corresponding to the specified size. The cut photosensitive material is conveyed to an exposure section, and the image of the document is exposed. The exposed photosensitive material is coated with water in a water coating section, and then conveyed to a superposition section where it is superimposed on an image-receiving material. This image-receiving material is also wound up into a roll and stored in a magazine, and is sequentially pulled out from the outer periphery and cut by a cutter into a length corresponding to a designated size. and,
When at least one of the final end of the photosensitive material or the final end of the image-receiving material is detected by the detection means provided between the magazine containing the photosensitive material or the image-receiving material and the cutter,
The following image recording is prohibited and the absence of photosensitive material or image-receiving material is displayed. In addition, in other conventional techniques,
A predetermined length from the final edge of the recording material (for example, A3 length)
A final end detection mark for detecting the final end of a hole, notch, etc. is provided at the position of When detected by an optical sensor and the output of the transmissive optical sensor changes from OFF to ON, it continues to record images, prohibits the next image recording, and displays that there is no photosensitive material or image-receiving material. .

[Problem to be Solved by the Invention] However, in the above-mentioned conventional technology, since the detection means for detecting the final end or the final end detection mark is disposed between the magazine and the cutter, there is a gap between the magazine and the cutter. There is a problem in that it becomes wider and the device cannot be made smaller. In order to solve this problem, it is possible to arrange the detection means downstream from the cutter in the transport direction, but the detection means detects the final end of the recording material and the cut end of the recording material cut by the cutter. Since the same detection signal is output regardless of the detection, there is a problem in that it is impossible to distinguish between the final end and the cut end of the recording material. In addition, since a transmission type optical sensor is used that outputs the same detection signal when detecting the final edge and when detecting the final edge detection mark, the most edge detection mark and the cut edge of the recording material are The problem is that it cannot be determined.

The present invention has been made to solve the above problems, and an object of the present invention is to provide an image recording device that can minimize the distance between the magazine and the cutter and can distinguish between the final end and the cut end of the recording material. . Another object of the present invention is to provide an image recording device that can minimize the distance between the magazine and the cutter, and can distinguish between the final end detection mark of the recording material and the cut end.

[Means for Solving the Problems] In order to achieve the above object, the present invention includes a first conveying means for pulling out recording material from a magazine, and a first conveying means disposed downstream of the first conveying means in a conveying direction to carry out the recording material. A cutter that cuts, and a second III that is disposed downstream of the cutter in the conveyance direction and conveys the pulled-out recording material! a means of transport;
a control means that operates a cutter when the first conveyance means is driven to convey the recording material a length corresponding to a designated size; and a control means that is disposed downstream of the cutter in the conveyance direction and controls the recording material at a placement position. a detection means for detecting whether or not the recording material is present, and conveyance by a second conveyance means from when the cutter is activated until the detection signal of the detection means changes from a state in which the recording material exists to a state in which it does not exist. and determining means for determining that the final end of the recording material has been detected by the detecting means when the length is less than the length of the conveyance path between the cutter and the detecting means.

Further, in place of the determining means, a second conveying means is used from when the detection signal of the detecting means changes from the state in which the recording material is absent to the state in which the recording material is present until the state in which the recording material changes from the state in which the recording material exists to the state in which it does not exist. The apparatus includes a determining means for determining that the most end of the recording material has been detected by the detecting means when the conveyance length is less than the length corresponding to the specified size.

Further, a first conveying means for pulling out a recording material having a final end detection port attached at a position a predetermined length from the final end from the magazine; a second conveying means disposed downstream of the cutter in the conveying direction and conveying the pulled-out recording material; and a second conveying means configured to convey the recording material a length corresponding to a designated size. a control means that operates the cutter when driven by the cutter; and a control means that is arranged downstream of the cutter in the conveyance direction and detects whether or not a recording material is present at the arrangement position, and a final end detection port is present at the arrangement position. a detection means for outputting the same detection signal as when no recording material is present; and a second detection means for outputting the same detection signal as when no recording material is present; and a second detection means for outputting the same detection signal as when no recording material is present; determining means for determining that the final end detection port of the recording material has been detected by the detecting means when the conveying length by the conveying means is less than the length of the conveying path between the cutter and the detecting means; It is composed of

[Operation] According to the present invention, the cutter is activated when the first conveyance means is driven so that the recording material is conveyed a length corresponding to a designated size. Based on the conveyance length by the second conveyance means and the length of the conveyance path between the cutter and the detection means from when the cutter operates until the detection signal of the detection means changes from the state in which recording material exists to the state in which it does not exist. , determine whether the final end of the recording material has been detected. In other words, when the recording material is cut by a cutter to a length corresponding to the specified size, from the time the cutter operates until the detection signal of the detection means changes from the state where the recording material is present to the state where the recording material is not present. If the conveyance length by the second conveyance means is equal to the length of the conveyance path between the cutter and the detection means, and the remaining amount of recording material is shorter than the specified size and the recording material is not cut by the cutter, when the cutter operates The final end has already passed the cutter, and the conveyance length by the second conveyance means from when the cutter is activated until the detection signal of the detection means changes from the state in which the recording material exists to the state in which the recording material does not exist is detected as the cutter. Since the length is less than the length of the conveyance path with the second conveyance means, the final end and the cut end of the recording material can be determined by comparing the conveyance length by the second conveyance means. On the right, if the final end of the recording material has already passed the detection means when the cutter is activated, the detection signal of the detection means will not change from the state where the recording material is present to the state where it is not present after the cutter is activated. Second
Since the conveyance length by the conveyance means is determined to be 0, it is possible to distinguish between the final end and the cut end of the recording material.

In addition, the length of transport by the second transport means from when the detection signal of the detection means changes from the state where the recording material is absent to the state where the recording material is present until the state where the recording material changes from the state where the recording material is present to the state where there is no recording material and the specified size. Based on the length corresponding to , it can be determined whether the final end of the recording material has been detected. In other words, when the recording material is cut with a cutter to a length corresponding to the specified size,
The conveyance length by the second conveyance means from when the detection signal of the detection means changes from the state where the recording material is absent to the state where the recording material is present until the state where the recording material changes from the state where the recording material is present to the state where the recording material is not present becomes the specified size. If the length is equal to the corresponding length and the recording material is not cut by the cutter, the final end has already passed the cutter when the cutter is activated, and the detection signal of the detection means changes from the state in which the recording material does not exist to the state in which it exists. The conveyance length by the second conveyance means from the time when the recording material changes from the state in which it exists to the state in which it does not exist, that is, the length of the recording material that has passed through the detection means becomes less than the length corresponding to the specified size. Therefore, the final end and cut end of the recording material can be distinguished.

Furthermore, even when using a recording material with a forest edge detection mark placed at a position a predetermined length from the #most edge, the first conveyance is such that the recording material is conveyed a length corresponding to the specified size. The cutter is actuated when the means is actuated. Based on the conveyance length by the second conveyance means and the length of the conveyance path between the cutter and the detection means from when the cutter operates until the detection signal of the detection means changes from the state in which recording material exists to the state in which it does not exist. , it is determined whether or not the final end detection mark of the recording material is detected. In other words, if the cutter cuts the recording material so that the remaining amount is longer than the length between the final edge detection mark and the final edge, the detection signal from the detection means indicates that there is no recording material after the cutter operates. The length of conveyance by the second conveyance means until the state changes from the state where it exists to the state where it does not exist becomes equal to the length of the conveyance path between the cutter and the detection means, and the remaining amount of recording material is between the final edge detection mark and the final edge. If the cutter cuts the material so that it is shorter than the length, the final end detection mark has already passed the cutter when the cutter is activated, and the detection signal of the detection means is the first time that the recording material is present after the cutter is activated. Since the conveyance length by the second conveyance means until the state changes from the state in which the recording material exists to the state in which it does not exist is less than the length of the conveyance path between the cutter and the detection means, it is possible to distinguish between the final edge detection mark and the cut edge of the recording material. . In this case, if the final end detection mark of the recording material has already passed the detection means when the cutter is operated, the detection signal of the detection means indicates that the first change from the state in which the recording material exists to the state in which it does not exist has passed. Therefore, the conveyance length by the second photographing and conveying means becomes 0, so that the final edge detection mark and the cut edge of the recording material can be distinguished.

[Effects of the Invention] As explained above, according to the present invention, the detection means for detecting the final end of the recording material or the final end detection mark is disposed downstream of the cutter in the conveying direction. Since the length of conveyance by the conveyance means is compared with the length of the conveyance path of the cutter and the detection means, the final end of the recording material and the cut end, or the final end detection mark of the recording material and the cut end can be determined without error. It has this excellent effect.

[Example code] Embodiments of the present invention will be described in detail below with reference to the drawings.

FIG. 1 schematically shows an image recording apparatus 12 of the present invention. A first magazine 16 is arranged in the image recording device 120 machine 14. A band-shaped photosensitive material 20 wound into a roll is stored in the first magazine 16, and the first magazine 16 is inserted into the image recording device 12 with the photosensitive material 20 pulled out for a predetermined length from the drawer opening. is installed on.

The exposed surface (surface) of the photosensitive material 20 is coated with a photographic emulsion. Further, on the back side of the photosensitive material 20, a final end detection mark 108 is printed at a position a predetermined length (for example, A3 lengthwise) from the rear end of the photosensitive material 20. As shown in FIG. 2, a conveyance roller 24 is disposed near the first magazine pullout opening 16A, and a cutter 26 is disposed downstream of the conveyance roller 24 in the conveyance direction. m feed roller 2
4 and the cutter 26 are connected to a control device 116 that controls the image recording device 12 disposed within the machine base 14, as shown in FIG. The leading end of the photosensitive material 20 is transferred to the conveying roller 2.
4, it is pulled out from the first magazine 16 when the conveyance roller 24 rotates, and when it is pulled out a predetermined length, it is cut by the cutter 26 and exposed by the constantly driven conveyance roller 28.30. Part 3
2. Further, as shown in FIG. 2, when a final end detection mark 108 printed on the back side of the photosensitive material 20 is detected downstream of the cutter 26 at a position where the length of the transport path is X from the cutting position of the cutter 26, , a reflective optical sensor 114 that outputs the same detection signal as when the photosensitive material 20 is not detected is arranged, and the optical sensor 114 is connected to a control device 116 as shown in FIG.

An exposure device 34 is provided directly above the exposure section 32,
As shown in FIG. 4, the exposure device 34 is connected to the control device 116. A light source 36, a first mirror unit 38, and a second mirror unit 46 are arranged in the exposure device 34, and a mounting plate 52 is provided on the top of the machine stand 14 directly above the exposure device 34. The light source 36 and the first mirror unit 38 of the exposure device 34 connect the lower part of the mounting plate 52 to the mounting plate 52.
2, and by this forward movement, the image of the document placed on the placement plate 52 is scanned and exposed onto the photosensitive material 20 located in the exposure section 32.

Nipping and reversing rollers 56 and 57 are disposed downstream of the exposure section 32, and the exposed photosensitive material 20 is held and conveyed between the nipping and reversing rollers 56 and 57 while being reversed.

A water application section 58 is arranged downstream of the reversing roller 56. A water application sensor 60 is arranged at the entrance of the water application section 580. As shown in FIG. 4, the water application sensor 60 is connected to the control device 116, detects the photosensitive material 20 before it is inserted into the water application section 58, and supplies water to the water application section 58. It is supposed to be done. A squeeze roller 62 is arranged at the outlet of the water application section 58 to remove excess water applied to the photosensitive material 20.

A mount timing sensor 1 is provided downstream of the squeeze roller 62.
32 is arranged, and the mount timing sensor 132 is connected to the control device 116 as shown in FIG.

An overlapping section 7 is located downstream of the mount timing sensor 132.
4 are arranged, and the water-coated photosensitive material 20 is conveyed to the overlapping section 74.

On the other hand, a second magazine 18 is arranged on the machine base 14. The second magazine 18 stores an unused image receiving material 22 wound into a roll, and the second magazine 18 is opened to the image recording device 1 with the image receiving material 22 pulled out for a predetermined length from the drawer opening. installed inside. Image receiving material 2
On the back side of 2, there is a final edge detection mark 10 similar to the photosensitive material 20.
9 is a predetermined length from the rear end of the image receiving material 22 (for example, A3 length)
It is printed at the position of As shown in FIG. 3, a conveyance roller 64 is arranged near the second magazine pullout opening 18A. The tip of the image receiving material 22 is transferred to the conveying roller 64
By holding the magazine between them, it is pulled out from the second magazine 18 when the conveyance roller 64 rotates. A cutter 66 , a constantly rotating conveying roller 68 , a conveying roller 70 rotating under the control of the control device 116 , and a standby roller 72 are arranged downstream of the conveying roller 64 . As shown in FIG. 4, the conveyance roller 64, cutter 66, and standby roller 72 are connected to a control device 116, and under the control of the control device 116, the image receiving material 22 is cut into a predetermined length by the cutter 66, and then conveyed. It is conveyed by rollers 68, 70 and standby rollers 72. Downstream of the cutter 66, when the final end detection mark 109 printed on the back side of the image-receiving material 22 is detected at a position where the length of the transport path is Y from the cutting position of the cutter 66, there are cases where the image-receiving material 22 is not detected. A reflective optical sensor 115 that outputs the same detection signal is arranged, and the optical sensor 115 is connected to a control device 116 as shown in FIG.

A standby sensor 130 is arranged downstream of the standby roller 72. As shown in FIG. 4, standby sensor 130 is connected to control device 116.

A stacking section 74 is arranged downstream of the standby sensor 130, and a bonding roller 76 is provided at the stacking section 74.
is arranged, and the photosensitive material 2 is moved by the standby roller 72.
Image-receiving material 22 timed for superimposition with 0
The photosensitive material 20 and the photosensitive material 20 coated with water are superimposed on each other.

A thermal development transfer section 78 is disposed downstream of the overlapping section 74, and the overlapping photosensitive material 20 and image receiving material 22 are
Both are sent to a thermal development transfer section 78.

The thermal development transfer section 78 is composed of a heating drum 80 and an endless pressure belt 82 made of conductive rubber.
Furthermore, a halogen lamp 84 is arranged within the heating drum 80. The heating drum 80 uses this halogen lamp 84.
The photosensitive material 20 and the image-receiving material 22 are sandwiched and conveyed between the heating drum 80 and the endless pressure belt 82 while the photosensitive material 20 and the image-receiving material 22 are stacked together to record on the photosensitive material 20. The resulting image is thermally developed and transferred to an image receiving material 22.

A first peeling section 86 is arranged downstream of the thermal development transfer section 78, and the first peeling section 86 includes a peeling roller 88 and a peeling claw 90.
, a swing roller 92. As shown in FIG. 4, the first peeling section 86 is connected to the control device 116,
Under the control of the control device 116, only the photosensitive material 20 to which the image has been transferred is peeled off from the heating drum 80.

A cutter 94 and a waste tray 96 are located downstream of the first peeling section 86.
The photosensitive material 20 peeled off from the heating drum 80 is cut by a cutter 94 and placed in a waste tray 96.
It is now discarded.

A second peeling unit 98 is arranged downstream of the first peeling unit 86, and the second peeling unit 98 includes a peeling roller 100 and a peeling claw 10.
2) A swing roller 104 is provided. As shown in FIG. 4, the second peeling section 98 is connected to the control device 116, and the image receiving material 22 on which the image has been fixed is peeled off from the heating drum 80 under the control of the control device 116. .

A tray 106 is arranged downstream of the second peeling section 98, and the image receiving material 22 peeled off from the heating drum 80 is discharged onto the tray 106.

An operating section 120 and a display means 122 are arranged on the upper part of the machine base 14 of the image recording device 12, and as shown in FIG.
16.

The control routine of this embodiment will be explained below.

As shown in FIG. 5, in step 200, the flag F
, T are reset, and the conveyance length of the photosensitive material 20 and the conveyance length K of the image-receiving material 22 are cleared. Step 20
2, a photosensitive material drawing processing routine shown in FIG. 6 is performed.

The photosensitive material drawing processing routine shown in FIG. 6 will be explained.

In step 250, the transport roller 24 is started to be driven and the photosensitive material 20 is drawn out from the first magazine 16. In step 252, it is determined whether or not the conveying roller 24 is driven to convey the photosensitive material 20 for a length corresponding to the specified size based on the number of clock pulses from the start of drawing, and if it is determined that the conveying roller 24 has been driven. In step 254, the driving of the conveying roller 24 is stopped, and in step 256, the cutter 26 is activated, and the process jumps to step 204 in FIG. 5 to perform the image receiving material drawing processing routine shown in FIG. 9. Further, when the cutter 26 operates, the interrupt processing shown in FIG. 7 is performed, and step 25
At step 8, measurement of the conveyance length of the photosensitive material 20 is started. On the other hand, the output signal of the optical sensor 114 is
From the state where 0 exists (ON) to the state where 0 does not exist (OFF)
8, the interrupt handling routine shown in FIG. 8 is executed.

Referring to FIG. 8, when the output signal of the optical sensor 114 changes from the state in which the photosensitive material 20 exists (ON) to the state in which it does not exist (OFF), that is, when the cut end or final end detection mark 108 of the photosensitive material 20 is detected. The interrupt processing routine when the optical sensor 114 is reached will be explained.

When this routine is started, in step 260, the measurement of the conveyance length of the photosensitive material 20 is stopped. Also,
If the measurement of the conveyance length of the photosensitive material 20 has not been started, L=0.

In step 262, it is determined whether the conveyance length L of the photosensitive material 20 is less than the length X of the conveyance path between the cutting position of the cutter 26 and the optical sensor 114, and if it is determined that it is not less than the length If it is determined that the cut end of the material 20 has reached the optical sensor 114, the process returns to the process when the interrupt occurs. - On the other hand, if it is determined in step 262 that the conveyance length of the photosensitive material 20 is less than the length X of the conveyance path between the cutting position of the cutter 26 and the optical sensor 114, that is, the final end of the photosensitive material 20 is detected. If it is determined that the mark 108 has reached the optical sensor 114, flag F is set in step 264, and the process returns to the process when the interrupt occurs.

The routine for drawing out the image-receiving material 22 shown in FIG. 9 will be explained.

In step 280, the transport roller 64 is started to be driven to pull out the image receiving material 22 from the second magazine 18. In step 282, it is determined whether the conveyance roller 64 has been driven to convey the image receiving material 22 for a length corresponding to the designated size based on the number of clock pulses from the start of the withdrawal, and if it is determined that the conveyance roller 64 has been driven; In step 284, the conveyance roller 64 is stopped, and in step 286, the cutter 66 is activated.
Proceed to 96. Further, when the cutter 66 operates, the interrupt processing shown in FIG. 10 is performed, and in step 266,
Measurement of the transport length K of the image receiving material 22 is started. on the other hand,
When the output signal of the optical sensor 115 changes from the state in which the image receiving material 22 is present (on) to the state in which it does not exist (off), an interrupt processing routine shown in FIG. 11 is performed.

Referring to FIG. 11, the output signal of the optical sensor 115 changes from the state where the image receiving material 22 is present (on) to the state where the image receiving material 22 is absent (H).
The interrupt processing routine when the cut end or final end detection mark 109 of the image receiving material 22 reaches the optical sensor 115 will be described.

When this routine is started, in step 270, the measurement of the transport length K of the image receiving material 22 is stopped. Also,
If the measurement of the conveyance length K of the image-receiving material 22 has not been started, then =O.

In step 272, it is determined whether the conveyance length K of the image receiving material 22 is less than the length Y of the conveyance path between the cutting position of the cutter 66 and the optical sensor 115, and if it is determined that it is not less than the length Y, that is, the image receiving material 22 is If it is determined that the cut end of the material 22 has reached the optical sensor 115, the process returns to the process when the interrupt occurs.

On the other hand, if it is determined in step 272 that the conveyance length K of the image-receiving material 22 is less than the length Y of the conveyance path between the cutting position of the cutter 66 and the optical sensor 115, that is, the final end detection mark 109 of the image-receiving material 22 If it is determined that the signal has reached the optical sensor 115, the flag T is set in step 274, and the process returns to the process when the interrupt occurs.

It is determined whether the standby sensor 130 is turned on in step 296 of FIG. 9, and if it is determined that the standby sensor 130 is turned on,
In step 298, the drive of the standby roller 72 is stopped, the image receiving material 22 is stopped, and the image receiving material 22 is jumped to step 208 in FIG.

In step 208 in FIG. 5, the photosensitive material 20 is transported to the exposure section 32 and exposed. In step 210, the exposed photosensitive material 20 is conveyed to the water application section 58 and water is applied thereto. In step 212, it is determined whether or not the mount timing sensor 132 has detected the photosensitive material 20. If it is determined that the photosensitive material 20 has been detected, the drive of the standby roller 72 is started in step 214. When the drive of the standby roller 72 is started, the image-receiving material 22 is conveyed to the overlapping section 74 and is overlaid with the water-coated photosensitive material 20 by the pasting roller 76 . Superimposed photosensitive material 2
0 and the image-receiving material 22 are both conveyed to a thermal development transfer section 78 and heated by a heating drum 8 by a halogen lamp 84.
0 and the endless pressure belt 82 while being conveyed and thermally developed and transferred. Photosensitive material 20 to which the image has been transferred
and the image-receiving material 22 are conveyed to the first peeling section 86, and only the photosensitive material 20 is peeled off in step 218. The peeled photosensitive material 20 is cut by a cutter 94 and discarded onto a discard tray 96. On the other hand, the image receiving material 22 is heated on the heating drum 8.
The image is thermally fixed in close contact with the second peeling section 98.
transported to. In step 220, the image-receiving material 22 on which the image has been fixed is peeled off from the heating drum 80 by the second peeling section 98 and discharged onto the tray 106, and in step 222, the post-image recording process shown in FIG. 12 is performed.

The processing routine shown in FIG. 12 after the image recording is completed will be described.

In step 300, the final edge detection mark 1 of the photosensitive material 20 is detected.
It is determined whether the flag F1 indicating whether or not 08 has been detected or the flag T indicating whether the final end detection mark 109 of the image receiving material 22 has been set is determined, and it is determined that neither is set. If so, the program jumps to the start of the control routine shown in FIG. 5 and performs the next image recording process. On the other hand, in step 300, flag F or flag T
If it is determined that is set, step 30
In step 2, it is determined whether flag F is set, and if it is determined that it is not set, step 3
06 Hejijump. On the other hand, if it is determined that the photosensitive material 20 is set, the display means 122 displays in step 304 that there is no photosensitive material 20. It is determined in step 306 whether the flag T is set, and if it is determined that it is not set, step 310
Hejyump. On the other hand, if it is determined that the image receiving material 22 is set, the absence of the image receiving material 22 is displayed on the display means 122 in step 308, and image recording processing is prohibited in step 310.

As described above, in this embodiment, the final end detection mark 10 of the recording material
Since the optical sensors 114 and 115 that detect 8.109 are arranged downstream of the cutter 26.66 in the conveyance direction, the image recording device 12 can be made smaller, and the conveyance length by the conveyance roller 28.68, the cutter 26.66, and the optical sensor can be made smaller. 114.1
Since the length of the conveyance path is compared with that of the recording material 108 and 15, there is an excellent effect that the cut edge of the recording material and the final edge detection marks 108 and 109 can be determined without error. Further, even when a recording material without the final edge detection mark 108, 109 is used, the optical sensor 114, 115 detects the final edge instead of the final edge detection mark 108, 109, and the conveyance roller 28, 68 detects the final edge. Since the conveyance length is compared with the length of the conveyance path of the cutter 26.66 and the optical sensor 114.115, it has an excellent effect that the cut end and the final end of the recording material can be determined without error.

In the embodiment described above, when the cutter 26.66 is operated, the measurement of the length of the recording material conveyed by the conveyance roller 28.68 is started, and the optical sensor 114.11 is activated.
When the detection signal of the cutter 26.
66 and the length of the transport path of optical sensors 114 and 115 are compared, and the cut edge and final edge detection mark 108. of the recording material are compared.
109, when the detection signals of the optical sensors 114 and 115 change from the state in which no recording material exists to the state in which the recording material exists, measurement of the conveyance length LSK of the recording material is started, and the optical When the detection signals of the sensors 114 and 115 change from the state in which the recording material exists to the state in which it does not exist, the transport length LSK of the recording material is compared with the length S corresponding to the specified size, and the recording material is It is also possible to distinguish between the cut end at the trailing end of the recording material and the final end of the recording material.

Next, the other method will be explained with reference to FIGS. 13 and 14.

When the detection signal of the optical sensor 114, 115 changes from the state in which the recording material does not exist to the state in which it exists, that is, when the leading edge of the recording material reaches the optical sensor 114, 115, the interrupt processing routine shown in FIG. 13 is performed. , in step 320, measurement of the conveyance length LSK of the recording material by the conveyance rollers 28.68 is started. On the other hand, when the output signals of the optical sensors 114 and 115 change from a state in which the recording material is present to a state in which the recording material is not present, that is, when the cut end of the trailing edge of the recording material or the final edge of the recording material is detected by the optical sensor 114.
4. When reaching 115, the interrupt handling routine shown in FIG. 14 is executed. When this routine is started, step 3
In step 22, the measurement of the conveyance length of the recording material is stopped, and in step 324, it is determined whether or not the conveyance length, K, is less than the length S corresponding to the designated recording size. If it is determined that the cut end of the trailing edge of the recording material has reached the optical sensor 114 or 115, the process returns to the processing at the time of occurrence of the interrupt. on the other hand,
If it is determined in step 324 that the conveyance length of the recording material, K, is less than the length S corresponding to the specified recording size, that is, the #most end of the recording material is located at the optical sensor 1.
If it is determined that 14.115 has been reached, the flag FST is set in step 326, and the process returns to the processing when the interrupt occurs.

[Brief explanation of the drawing]

FIG. 1 is a schematic sectional view of the image recording device of this embodiment, FIG. 2 is an enlarged sectional view near the first magazine exit, FIG. 3 is an enlarged sectional view near the second magazine exit, and FIG. 4 is an enlarged sectional view of the image recording apparatus according to the present embodiment. A block diagram of the control circuit of the image recording apparatus of the example, FIG. 5 is a flowchart showing the control routine of the image recording apparatus of this embodiment, FIG. 6 is a flowchart showing the photosensitive material drawing processing routine, and FIG. 7 is a flowchart showing the cutter 26 on. FIG. 8 is a flowchart showing the interrupt processing routine from turning on the optical sensor 114 to turning it off. FIG. 9 is a flowchart showing the receiving material extraction processing routine. FIG. 10 is a flowchart showing the interrupt processing routine when the cutter 66 is turned on. FIG. 11 is a flowchart showing the interrupt processing routine from on to off of the optical sensor 115, FIG. 12 is a flowchart showing the processing routine after image recording is completed, and FIG. 13 is a flowchart showing the processing routine for the optical sensor 114 and 115. Flowchart illustrating an off-to-on interrupt handling routine, Part 1
FIG. 4 is a flowchart showing an interrupt handling routine from turning on to turning off the optical sensors 114 and 115 corresponding to FIG. 12... Image recording device, 24.26.28.68... Conveyance roller, 26.66
...Cutter, 114... Optical sensor, 115... Optical sensor, 116... Control device.

Claims (3)

[Claims] (1) a first conveyance means for pulling out the recording material from the magazine; a cutter disposed downstream of the first conveyance means in the conveyance direction for cutting the recording material; and a cutter disposed downstream of the cutter in the conveyance direction for pulling out the recording material; a second conveyance means for conveying the recorded recording material; a control means for operating a cutter when the first conveyance means is driven to convey the recording material a length corresponding to a designated size; a detection means disposed on the downstream side in the conveyance direction for detecting whether or not a recording material is present at a placement position; and a detection signal from the detection means is detected from a state in which the recording material is present after the cutter is operated. determining that the final end of the recording material has been detected by the detection means when the length of conveyance by the second conveyance means until the state changes to a state in which the recording material does not move is less than the length of the conveyance path between the cutter and the detection means; An image recording device characterized by comprising: means. (2) In the image recording apparatus according to claim (1), the detection signal of the detecting means, instead of the determining means, changes from the state where the recording material does not exist to the state where the recording material exists, and then the recording material is present. determination that the final end of the recording material has been detected by the detection means when the conveyance length by the second conveyance means until the state changes from the state where it exists to the state where it does not exist is less than the length corresponding to the specified size; An image recording device characterized by comprising means. (3) a first conveyance means for pulling out a recording material with a final end detection mark attached at a position a predetermined length from the final end from the magazine;
a cutter disposed downstream in the conveyance direction from the first conveyance means to cut the recording material; a second conveyance means disposed downstream from the cutter in the conveyance direction to convey the pulled-out recording material; 1 a control means for operating a cutter when the conveying means is driven to convey a recording material a length corresponding to a designated size; and a control means for activating a cutter when the conveying means is driven to convey a recording material for a length corresponding to a designated size; a detection means for detecting whether or not a recording material is present and outputting the same detection signal when a final end detection mark is present at the arrangement position as when no recording material is present; and a detection means for detecting after the cutter is activated. When the conveyance length by the second conveyance means until the signal changes from the state in which the recording material exists to the state in which the recording material does not exist is less than the length of the conveyance path between the cutter and the detection means, the detection means detects the 1. An image recording apparatus comprising: a determining means for determining that a final end detection mark of a recording material has been detected.