JP2004291536A - Image receiving recording medium roll, image receiving recording medium set and image formation device using them - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide an image receiving recording medium roll which can reduce a manufacturing cost and time and effort of a replacement by effectively putting a part of an image receiving sheet except a defect position into practical use as much as possible even when a long-sized image receiving sheet is wound to form a roll and to provide an image formation device. <P>SOLUTION: The image receiving recording medium roll 5 records information showing the defect position of the image receiving sheet 7 in the state readable by the image formation device 2. The image formation device 2 for forming the image on the image receiving sheet 7 includes an information reading means 19 for reading the information showing the improper position of the image receiving sheet 7 recorded on an information storage medium 6 provided on the image receiving recording medium roll 5, a defect position recognition means 15 for recognizing the defect position of the image receiving sheet 7 based on the information showing the defect position, and a removing means 20 for removing the recognized defect position at a different position except the defect position. <P>COPYRIGHT: (C)2005,JPO&NCIPI

Description

[0001]
TECHNICAL FIELD OF THE INVENTION
The present invention relates to an image receiving recording medium roll formed by winding an image receiving sheet, and an image forming apparatus using the roll.
[0002]
[Prior art]
The form of the image receiving recording medium recorded by the image forming apparatus includes a sheet form, a roll form, and the like, and these are properly used depending on applications. In recent years, color printers for business use are being used for various purposes. In this case, in many cases, a roll type and a large number of screens are used in terms of the frequency and cost of replacing the recording medium. . In general, a recording medium in the form of a roll is formed into a product by coating a base film or a base paper with a material, slitting the cut into a predetermined width, and winding a predetermined number of screens around a core or the like.
[0003]
[Problems to be solved by the invention]
However, with regard to such a long recording medium having a large number of screens, from the standpoint of the recording medium manufacturing side, if quality is emphasized, a lot of waste occurs, and as a result the roll manufacturing cost increases. There is. For example, as shown in FIG. 8A, in the case of a roll in which an image receiving sheet having a length of 600 screens is wound up, if at least one defective screen exists in the image receiving sheet, all the remaining 599 screens are normal. Nevertheless, the entire roll must be discarded.
[0004]
On the other hand, as shown in FIG. 8B, when five recording medium rolls are manufactured by dividing an image receiving sheet having a length equivalent to 600 screens into a length equivalent to 120 screens, one of the 600 screens becomes a defective screen. In this case, the roll including the screen may be processed as a defective product, and all the 480-screen image receiving sheets included in the remaining rolls can be used as non-defective products. However, even in this case, the image receiving sheet having a length equivalent to 119 screens still needs to be discarded. In addition, there is a disadvantage that the production of the recording medium roll is troublesome, and the frequency of replacing the recording medium roll is increased in the image forming apparatus.
[0005]
Therefore, the present invention can reduce manufacturing costs and labor for replacement by effectively utilizing a portion other than a defective portion of an image receiving sheet as much as possible even when a roll is formed by winding a long image receiving sheet. An object of the present invention is to provide a roll of an image receiving recording medium, a set thereof, a manufacturing apparatus thereof, and an image forming apparatus.
[0006]
[Means for Solving the Problems]
Hereinafter, the present invention will be described. In addition, in order to facilitate understanding of the present invention, reference numerals in the accompanying drawings are added in parentheses, but the present invention is not limited to the illustrated embodiment.
[0007]
The image receiving recording medium roll (5, 54, 90) according to the present invention winds an image receiving sheet (7, 56, 91) used as a medium for recording an image in the image forming apparatus (2, 51, 80). The above problem is solved by a recording medium roll for recording an image, wherein information indicating a defective portion of the image receiving sheet is recorded in a state readable by the image forming apparatus.
[0008]
In the image receiving recording medium roll according to the present invention, information indicating the defective portion is recorded in a state that can be read by the image forming apparatus. Is read, and processing different from that of other parts can be performed.
[0009]
The image receiving sheet in the present invention may be a plain paper or a special paper for various printing depending on the image forming apparatus, including a recording medium. Further, it is not limited to paper made of vegetable fibers, but also includes various films made of chemical substances such as polyethylene and polyester.
[0010]
Examples of the defective portion include a portion having coating unevenness, a scratch, or a pinball of a material applied to a base paper serving as a base material, a portion having foreign matter such as dust, and the like.
[0011]
There are the following modes for recording information indicating a defective portion on the image receiving recording medium roll.
[0012]
Information indicating the defective portion may be recorded on an information storage medium (6) provided on a support member (4) of the image receiving sheet. As a result, the information indicating the defective portion can be recorded as digital data such as electronic data or magnetic data integrated with the image receiving recording medium roll. When the digital data is read by the image forming apparatus, the image forming apparatus recognizes a defective portion of the image receiving recording medium roll.
[0013]
The type of the information storage medium is not limited as long as it is a nonvolatile storage element. As a support member of the image receiving sheet, for example, any member provided in addition to the core of the image receiving recording medium roll or other image receiving sheet may be used.
[0014]
The information recorded on the information storage medium may include not only the defective portion but also other information. In the case of a rewritable information storage medium, processing and editing of recorded information can be easily performed after recording.
[0015]
Further, information indicating the defective portion may be recorded as mark information (61) on the image receiving sheet. Thus, the mark information is recorded on the image receiving sheet as information indicating a defective portion. This mark information is read by the image forming apparatus.
[0016]
The method of recording the mark information is not limited as long as it is recorded in a state that can be sensed by the image forming apparatus in addition to printing. For example, a stamp may be used.
[0017]
Since the mark information is printed directly on the image receiving sheet, there is no need to provide an information storage medium on the image receiving recording medium roll. Therefore, even with a conventional image receiving recording medium roll, it is possible to cause the image forming apparatus to read information indicating the defective portion by adding the mark information.
[0018]
The information storage medium on which the information indicating the defective portion is recorded may not be integrated with the image receiving recording medium. That is, an image receiving recording medium including an image receiving recording medium roll obtained by winding an image receiving sheet used as a medium for recording an image in an image forming apparatus, and an information storage medium separated from the image receiving recording medium roll In a set, information indicating a defective portion of the image receiving sheet may be recorded on the information storage medium in a state readable by the image forming apparatus.
[0019]
Accordingly, even if the information storage medium is not provided on the image receiving recording medium roll, if the information storage medium is stored in the information storage medium separated from the image receiving recording medium roll, the image receiving apparatus can store the image receiving recording medium roll. Can be read from the information recording medium included in the image receiving recording and recording material set. Therefore, even in the case of a conventional image receiving recording medium roll having no information storage medium, the image forming apparatus can read information indicating the defective portion and recognize the defective portion of the conventional image receiving recording medium roll. Can be done.
[0020]
The image forming apparatus (2, 51, 80) of the present invention is an image forming apparatus capable of forming an image on an image receiving sheet (7, 56, 91) fed from an image receiving recording medium roll (5, 54, 90). And reading information indicating a defective portion of the image receiving sheet recorded on the information storage medium (6, 61) provided on the image receiving recording medium roll or separated from the image receiving recording medium roll. Means (19, 66); a defective portion recognizing means (15, 62) for recognizing a defective portion of the image receiving sheet based on the information indicating the defective portion; The above problem is solved by providing exclusion means (20, 67) for exclusion at different positions.
[0021]
According to this image forming apparatus, information indicating a defective portion of the image receiving recording medium roll is read by the information reading unit, and the defective portion recognizing unit recognizes where the defective portion of the image receiving recording medium roll is located and eliminates it. By means, the defective portion is excluded to a position different from the other portions. Other locations are locations that are not defective locations on the image receiving sheet, that is, normal locations. Therefore, according to the present invention, the defective portion is excluded at a position different from the normal portion, so that the defective portion and the normal portion can be processed separately.
[0022]
The image forming method in the image forming apparatus is not limited to thermal printing and transfer printing, but may be any method that forms an image on a roll-shaped recording medium. Therefore, various printing methods such as an ink jet method, an electrophotographic method, and relief printing and intaglio printing may be used.
[0023]
The information reading means of the above-described image forming apparatus has a function of reading according to a mode in which information indicating a defective portion is recorded.
[0024]
For example, the information reading means may have a function of reading information indicating the defective portion from an information storage medium provided on the image receiving recording medium roll or separated from the image receiving recording medium roll. In addition, the information processing apparatus may have a function of reading information indicating the defective portion from mark information provided on the image receiving sheet.
[0025]
An image receiving recording medium roll manufacturing apparatus (1, 50) of the present invention winds an image receiving sheet (7, 56) used as a medium for recording an image in an image forming apparatus, and rolls the image receiving recording medium roll (5). , 54) for manufacturing an image receiving recording medium roll, comprising: a defective portion detecting means (9, 58) for detecting a defective portion of the image receiving sheet; and a defective portion recognizing means for recognizing the detected defective portion. (10, 59), and the information indicating the recognized defective portion is recorded on the image receiving recording medium roll or the information storage medium separated from the image receiving recording medium roll in a state readable by the image forming apparatus. The above-mentioned problem is solved by providing the defective portion recording means (12, 60). The image-receiving recording medium roll according to any one of claims 1 to 3 or the image-receiving recording medium set according to claim 4 is manufactured by the apparatus for manufacturing an image-receiving recording medium roll.
[0026]
BEST MODE FOR CARRYING OUT THE INVENTION
1 and 2 show a first embodiment of the present invention. In this embodiment, a recording medium roll on which a recording medium as an image receiving sheet is wound is used as an image receiving recording medium roll. FIG. 1 shows an example of a recording medium roll manufacturing apparatus 1, and FIG. 2 shows an example of a printing apparatus 2 as an image forming apparatus for performing printing on the recording medium roll.
[0027]
In the present embodiment, the position of the recording medium is specified by the number of screens. One screen corresponds to the length of the recording medium 7 used when printing an image of a predetermined size in the printing device 2 as shown in FIG. In the extracted recording medium 7, this is a value indicating the order of the screen from the first output screen.
[0028]
The recording medium roll manufacturing apparatus 1 manufactures the recording medium roll 5 by winding the recording medium 7 pulled out from the material roll 3 in the direction of arrow A and winding it around the core 4.
[0029]
While the recording medium 7 is being fed, the CCD sensor 8 receives an image for inspection while the recording medium 7 is stretched without slack. The surface to be inspected may be one side of the recording medium 7 or both sides. Based on the image received by the CCD sensor 8, a defect inspection device 9 as a defective portion detecting means detects a defective portion on the surface of the recording medium 7. As a method for the defect inspection device 9 to detect these defective portions, for example, a method of detecting as a defective portion by quantifying the shading of an image received by the CCD sensor 8 and comparing it with a normal value. There is. The inspection by the defect inspection device 9 may be performed at an arbitrary stage until the recording medium roll 5 is completed.
[0030]
When a defect is detected by the defect inspection device 9, a signal indicating the detection of the defect is sent to the control device 10. The control device 10 as a defective portion recognizing means obtains the number of screens including the defective portion (hereinafter referred to as “defective screen”) from the screen number counting device 11 and indicates the obtained number of screens as the defective portion. The information is sent to the information writing device 12 as information. Then, the information indicating the defective portion is stored in the information storage device 6 provided in the core 4 by the information writing device 12 as the defective portion recording means.
[0031]
The method for counting the number of screens in the screen number counting device 11 is not particularly limited as long as the number of screens at the position to be inspected by the CCD sensor 8 can be grasped. For example, if the paper feed speed is constant, counting or calculation may be performed based on the speed and a predetermined elapsed time, or if the time for the CCD sensor 8 to inspect one screen is determined, the number of screens may be counted. The device 11 may hold a count value of the number of screens, and the operation of the CCD sensor 8 may be synchronized with the count value to count the number of screens including a portion to be inspected by the CCD sensor 8.
[0032]
The method of storing the number of defective screens from the information writing device 12 to the information storage device 6 may be either wired or wireless. In the present embodiment, an IC chip provided in a part of the core 4 constituting the recording medium roll 5 functions as the information storage device 6. However, the location where the information storage device 6 is provided is not limited to this, and the information storage device 6 may be located at an appropriate position on the recording medium roll 5. For example, when the recording medium roll 5 has a member such as a cartridge, the member may include the information storage device 6. Further, the information storage device 6 may be provided as, for example, an IC card separated from the recording medium roll 5 and attached to (for example, bundled with) the recording medium roll 5 to form a recording medium set.
[0033]
The printing device 2 performs printing on the recording medium roll 5 manufactured by the above method. Hereinafter, the printing device 2 will be described with reference to FIG.
[0034]
First, the configuration of the printing device 2 will be described. As shown in FIG. 2, the printing device 2 heats the recording medium 7 drawn from the recording medium roll 5 to form an image by heating, a roller 17 for feeding the recording medium 7, and cuts the recording medium 7. The automatic cutter 18 to be cut, the regular output unit 21 and the defective output unit 22 from which the cut recording medium 7 is discharged, and the position where the cut recording medium 7 is guided to the regular output unit 21 and the defective output unit 22 A paper ejection guide 20 that operates between the guiding position, an actuator 23 connected to a switching unit 20a of the paper ejection guide 20, a control device 15 that controls the operation of each unit of the printing device 2, and a recording medium roll And a reading device 19 for reading information indicating a defective portion from the information storage medium 6 embedded in the core 4 of the control unit 5 and providing the read information to the control device 15. The control device 15 is configured as, for example, a microcomputer.
[0035]
Next, the operation of the printing device 2 will be described. The printing operation performed under the control of the control device 15 is the same as the operation of the conventional printing device. That is, at the time of printing, the recording medium 7 wound around the recording medium roll 5 is fed in the arrow direction C along the predetermined paper feed path by the rotation of the core 4 in the arrow direction B1 and the rotation of the roller 17 in the arrow direction B2. . The thermal head 16 is pressed against the recording medium 7 to form an image on the recording medium 7, and the image forming portion is guided to the auto cutter 18 and cut into a length equivalent to one screen. The number of screens of the cut recording medium 7 is counted by the control device 15 in synchronization with the operation of the automatic cutter 18 and stored in a memory in the control device 15. The cut recording medium 7 is sent to the paper ejection guide 20. The cut recording medium 7 is sent to either the regular output unit 21 or the defective output discharge unit 22 by switching the discharge guide 20 according to an instruction from the control device 15.
[0036]
Hereinafter, the discharging operation of the recording medium 7 will be described. In the printing device 2, after the recording medium roll 5 is mounted, the information indicating the defective screen stored in the information storage device 6 is read by the reading device 19 as information reading means until the actual printing is started. It is sent to the control device 15 and stored in its memory. The information indicating the defective screen includes the number of screens on which the defective portion of the recording medium roll 5 exists.
[0037]
During the printing operation, each time the printing of one screen is completed and the recording medium 7 is cut by the auto cutter 18 as described above, the number of cut screens is counted up, and the control device 15 outputs the cut image. When the count value of the recording medium 7 coincides with the retained number of screens, an exclusion command to the defective output ejection unit 22 is output to the actuator 23 of the ejection guide 20 as exclusion means. Output processing of the exclusion command performed by the control device 15 as the defective portion recognition means will be described later.
[0038]
When the actuator 23 receives the removal instruction, the actuator 23 operates the switching unit 20a of the paper ejection guide 20. By this operation, the paper ejection guide 20 switches from a position (solid line) for guiding the recording medium 7 to the regular output unit 7 to a position (dotted line) for guiding the recording medium 7 to the defective output unit 22.
[0039]
The discharge guide 20 is held at a position for guiding the recording medium 7 to the regular output unit 21 unless an exclusion command is sent from the control device 15. Therefore, the recording medium 7 corresponding to the screen that does not include the defective portion is output to the regular output unit 21.
[0040]
As a result of the above processing, it is possible to discharge only the recording medium 7 for one screen including the defective portion to the defective screen discharging unit 22 while distinguishing it from other recording media not including the defective portion.
[0041]
Next, the flow of the output processing of the exclusion command performed by the control device 15 will be described with reference to the flowchart shown in FIG.
[0042]
First, the control device 15 waits for cutting information from the auto cutter 18 to determine whether or not the cutting process has been performed by the auto cutter 18 (step S30). When the cutting signal is sent, it is determined that the cutting process has been performed by the auto cutter 18, and 1 is added to the count value of the number of cut screens (step S31). This count value is reset for each recording medium roll 5 to be printed.
[0043]
Next, it is determined whether or not the added count value matches the value of the number of defective screens read from the reading device 19 (step S32). If they match, the recording medium 7 is output to the paper ejection guide 20 for removing the cut recording medium 7 (step S33). If they do not match, the cut recording medium 7 is not rejected, and the process returns to the state of waiting for a cut signal.
[0044]
The above-described discharge command output processing, screen number counting processing, printing processing, and the like can be performed in parallel by performing time-division processing even with a single CPU.
[0045]
Next, a second embodiment of the present invention will be described with reference to FIGS. In this embodiment, a recording medium roll on which a recording medium as an image receiving sheet is wound is used as an image receiving recording medium roll. FIG. 4 shows an example of a recording medium roll manufacturing apparatus 50, and FIG. 5 shows an example of a printing apparatus 2 as an image forming apparatus for performing printing on the recording medium roll.
[0046]
In the present embodiment, the position of the recording medium is specified by the number of screens. One screen corresponds to the length of a recording medium used when printing an image of a predetermined size by the printing device 51 as shown in FIG. 5, and the number of screens refers to the number of screens drawn from the recording medium roll. This is a value indicating the order of the screen from the first output screen in the recording medium.
[0047]
The recording medium roll manufacturing apparatus 50 manufactures the recording medium roll 54 by winding the recording medium 56 drawn from the raw roll 3 around the core 4 while transporting the recording medium 56 in the arrow direction D. During the paper feeding of the recording medium 56, the recording medium 56 as an image receiving sheet is received for inspection by the CCD sensor 57 in a state where the recording medium 56 is stretched without slack. The surface to be inspected may be one side of the recording medium 56 or both sides. On the basis of the image received by the CCD sensor 57, the defect inspection device 58 as a defective portion detecting means detects the defective portions 55a and 55b of the recording medium 56 (hereinafter referred to as a "defective portion 55" when it is not particularly necessary to distinguish them). ) Is detected. As a method for the defect inspection device 58 to detect these defective portions, for example, a method of detecting the defective portion by digitizing the shading of the image received by the CCD sensor 57 and comparing it with a normal value. There is. The inspection by the defect inspection device 58 may be performed at any stage until the recording medium roll 54 is completed.
[0048]
When the defective portion 55 of the defect inspection device 58 is detected, a signal indicating the detection of the defective portion is sent to the control device 59. The control device 59 as the defective portion recognizing means calculates the timing at which the defective mark printing device 60 should print the defective mark 61 from the signal indicating the detection of the defective portion, and designates the calculated timing or the timing. Then, a print command is sent to the defective mark printing device 60. The defective mark printing device 60 as a defective portion recording unit prints the defective mark 61 on the recording medium 56 when a print command is sent or at a designated timing.
[0049]
In the present embodiment, as shown in FIG. 4, if the direction in which the recording medium 56 moves is in front, it is desirable that the defective mark 61 corresponding to the defective portion 55b be printed after the defective portion 55b. When the recording medium roll 54 is printed by the printing device 51, the defective mark 61 is positioned before the defective portion 55b, and the defective portion 55b can be detected before printing on the defective portion 55b. is there.
[0050]
As a place where the defective mark 61 is printed, for example, an interval provided between the defective screen and the next screen, an end of the defective screen, or the like can be considered.
[0051]
As the defect mark printing device 60, various printers such as a thermal transfer printer and an ink jet printer, as well as a marking device and a simple printing machine can be used. FIG. 4 shows a form in which the defective mark 61 is printed on the printing surface of the recording medium 56, but may be printed on the back side or on both sides. Further, printing may be performed including information other than the defective portion.
[0052]
The timing at which the control device 59 issues a print command for the defective mark 61 to the defective mark printing device 60 depends on, for example, the number of screens at which the control device 59 inspects the CCD sensor 57 and the number of locations where the defective mark printing device 60 prints. There are a method of counting the number of screens and holding the number of screens, and a method of issuing a print command after a predetermined time elapses by using a signal for detecting a defective portion as a trigger.
[0053]
The recording device 54 manufactured by the above method is printed by the printing device 51. Hereinafter, the printing device 51 will be described with reference to FIG.
[0054]
First, the configuration of the printing device 51 will be described. As shown in FIG. 5, the printing device 51 heats the recording medium 56 drawn from the recording medium roll 54 to form an image by heating, a roller 64 for feeding the recording medium 56, and cuts the recording medium 56. The automatic cutter 65, the regular output unit 69 and the defective output unit 70 from which the cut recording medium 56 is discharged, and the position where the cut recording medium 56 is guided to the regular output unit 69 and the defective output unit 70. A paper ejection guide 67 that operates between the guiding position, an actuator 71 connected to a switching unit 67a of the paper ejection guide 67, a control device 62 that controls the operation of each unit of the printing device 51, and a defect mark 61 And a mark sensor 66 capable of detecting the The control device 62 is configured as, for example, a microcomputer.
[0055]
Next, the operation of the printing device 51 will be described. The printing operation performed under the control of the control device 62 is the same as the operation of the conventional printing device. That is, at the time of printing, the recording medium 56 wound around the recording medium roll 54 is fed in the arrow direction F along the predetermined sheet feeding path by the rotation of the core 53 in the arrow direction E1 and the rotation of the roller 64 in the arrow direction E2. Can be The thermal head 63 is pressed against the recording medium 56 to form an image on the recording medium 56, and the image forming portion is guided to the auto cutter 65 and cut into a length equivalent to one screen. The number of screens of the cut recording medium 56 is counted by synchronizing the operation of the automatic cutter 65 with the control device 62, and is stored in a memory in the control device 62. The cut recording medium 56 is sent to a paper ejection guide 67. The cut recording medium 56 is sent to either the regular output section 69 or the defective output section 70 by switching the discharge guide 67 in accordance with an instruction from the control device 62.
[0056]
Next, the discharging operation of the recording medium 56 will be described. In the printing device 51, before the image is formed on the drawn recording medium 56 by the thermal head 63, the surface thereof is inspected for the presence or absence of the defective mark 61 by a mark sensor 66 as information reading means. The number of screens corresponding to the location inspected by the mark sensor 66 is also counted by the control device 62 by synchronizing with the operation of the mark sensor 66, and is held in the memory of the control device 62. When the defective mark 61 is detected, a detection signal is sent from the mark sensor 66 to the control device 62. The control device 62 stores the number of screens corresponding to the screen on which the detection signal is detected as the number of defective screens in the memory, and when the count value of the cut recording medium 68 matches the stored value. And outputs an exclusion command to the actuator 71 of the paper ejection guide 67 as exclusion means. The flow of the output process of the exclusion command performed by the control device 62 as the defective portion recognition means will be described later.
[0057]
When the actuator 23 receives the removal instruction, the actuator 23 operates the switching unit 67a of the paper ejection guide 67. By this operation, the paper ejection guide 67 switches from a position (solid line) for guiding the recording medium 56 to the regular output unit 69 to a position (dotted line) for guiding to the defective output unit 70.
[0058]
The paper ejection guide 67 is held at a position where the recording medium 56 is guided to the regular output unit 69 unless an exclusion command is sent from the control device 62. Therefore, the recording medium 56 corresponding to the screen that does not include the defective portion is output to the regular output unit 69.
[0059]
As a result of the above processing, it is possible to discharge only the recording medium 56 for one screen including the defective portion to the defective screen discharging unit 70 in distinction from the other recording media 56 not including the defective portion.
[0060]
The flow of the output process of the exclusion command performed by the control device 62 will be described with reference to the flowchart of FIG.
[0061]
The control device 62 first determines whether or not the defective mark 61 is detected by the mark sensor 66 (step S75). If detected, the number of screens corresponding to the detection is specified and held (step S76). If not detected, it enters a detection waiting state. If the number of screens is retained, it is determined whether or not the number of screens matches the number of screens of the recording medium 56 cut by the auto cutter 65 (step S77). If they do not match, it is in a state of waiting for the number of screens of the cut recording medium 56 to match the held number of screens. If they match, an exclusion command is issued to the paper ejection guide 67 (step S78). The count value of the number of screens is reset for each recording medium roll 54.
[0062]
The above-described exclusion command output processing, the counting processing of each screen number, and the printing processing can be performed in parallel by performing time-sharing processing even if only one CPU is used.
[0063]
In the above-described embodiment, a method of counting the number of screens is adopted as a method by which the control device 62 recognizes the position of the recording medium 56, but is not limited thereto. For example, a detection signal output from the mark sensor 66 may be used as a trigger to issue an exclusion command after a lapse of a predetermined time.
[0064]
In the above two embodiments, the recording medium rolls 5 and 54 have been described as examples of the thermosensitive recording medium. However, the recording medium in the present invention is not limited to the thermosensitive recording medium. Good. For example, a special paper for thermal transfer printing may be used. Therefore, the configuration of the image forming apparatus of the present invention is also applicable to a thermal transfer type image forming apparatus.
[0065]
FIG. 7 shows an example of a thermal transfer type printing apparatus. In the printing apparatus 80 shown in FIG. 7, a thermal transfer ribbon setting section 81 capable of setting a thermal transfer ribbon is provided, and a thermal head 82 presses the thermal transfer ribbon 83 against the thermal transfer image receiving paper 91 pulled out from the thermal transfer image receiving paper roll 90. Thus, an image is formed on the thermal transfer image receiving paper 84.
[0066]
The configuration for detecting and removing a defective portion of the thermal transfer image receiving paper 91 and the operation thereof are described in the second embodiment in which the defective portion 55 is removed by reading the defective mark 61 printed on the recording medium 56. This is the same as the printing device 51.
[0067]
The present invention is not limited to the embodiments described above, and may be implemented in various forms.
[0068]
Further, in the printing apparatuses 2, 51, and 80 of the present embodiment, processing is performed in the order of detection, printing, and elimination of a defective portion, but the order can be changed as appropriate. For example, a configuration may be adopted in which after detecting a defective screen, the defective screen is eliminated before printing, so that printing is performed only on the screen excluding the defective screen.
[0069]
In the present embodiment, processing is performed in units of screens, but processing may be performed in units of lengths. Instead of counting the number of screens, each control device can specify a defective portion as a length from a predetermined position by counting a length from a predetermined position, and can eliminate the portion.
[0070]
As described above, according to the present invention, even if a long image-receiving sheet is wound up to form a roll, portions other than the defective portion of the image-receiving sheet can be utilized as effectively as possible. It is possible to provide an image receiving recording medium roll, a set thereof, a manufacturing apparatus thereof, and an image forming apparatus capable of reducing manufacturing costs and labor for replacement.
[Brief description of the drawings]
FIG. 1 is a diagram illustrating an example of a recording medium roll manufacturing apparatus according to a first embodiment.
FIG. 2 is a diagram illustrating an example of a printing apparatus according to the first embodiment.
FIG. 3 is a flowchart showing a processing flow of an exclusion command output process of a control device in the printing apparatus of FIG. 2;
FIG. 4 is a diagram illustrating an example of a recording medium roll manufacturing apparatus according to a second embodiment.
FIG. 5 is a diagram illustrating an example of a printing apparatus according to a second embodiment.
FIG. 6 is a flowchart showing a processing flow of an exclusion output process of the control device in the printing apparatus of FIG. 5;
FIG. 7 is a diagram illustrating an example of a printing apparatus using a thermal transfer recording medium.
FIG. 8A is a diagram illustrating a case where a long roll-shaped recording medium has a defective portion, and FIG. 8B is a diagram illustrating recording of a length that is one fifth of that of the recording medium of FIG. FIG. 4 is a diagram illustrating a case where a medium has a defective portion.
[Explanation of symbols]
1,50 Recording medium roll manufacturing device
2,51,80 Printing device
5, 54 Recording media roll
7,56 Recording medium
8,57 CCD sensor
9,58 Defect inspection device
10,59 Control device for recording medium roll manufacturing device
15,62,86 Control device for printing device
11 Screen number counting device
19 Reader
66 Mark sensor
20, 67 Discharge guide
21, 69 Regular output section
22, 70 defective output discharge unit
60 Bad mark printing device
61 Bad mark

Claims (8)

An image receiving recording medium roll formed by winding up an image receiving sheet used as a medium for recording an image in an image forming apparatus, wherein information indicating a defective portion of the image receiving sheet is readable by the image forming apparatus. A recording medium roll for image reception, characterized by being recorded by: The recording medium roll for image reception according to claim 1, wherein information indicating the defective portion is recorded on an information storage medium provided on a support member of the image reception sheet. The recording medium roll according to claim 1, wherein information indicating the defective portion is recorded as mark information on the image receiving sheet. An image receiving recording medium set including an image receiving recording medium roll formed by winding an image receiving sheet used as a medium for recording an image in an image forming apparatus, and an information storage medium separated from the image receiving recording medium roll. So,
An image receiving recording medium set, wherein information indicating a defective portion of the image receiving sheet is recorded in the information storage medium in a state readable by the image forming apparatus. An image forming apparatus capable of forming an image on an image receiving sheet fed from an image receiving recording medium roll,
Information reading means provided on the image receiving recording medium roll, or reading information indicating a defective portion of the image receiving sheet recorded on the information storage medium separated from the image receiving recording medium roll,
A defective portion recognizing means for recognizing a defective portion of the image receiving sheet based on the information indicating the defective portion;
Elimination means for excluding the recognized defective portion at a position different from the other portions;
An image forming apparatus comprising: 6. The information reading device according to claim 5, wherein the information reading unit reads information indicating the defective portion from an information storage medium provided on the image receiving recording medium roll or separated from the image receiving recording medium roll. The image forming apparatus according to any one of the preceding claims. The image forming apparatus according to claim 5, wherein the information reading unit reads information indicating the defective portion from mark information provided on the image receiving sheet. An image receiving recording medium roll manufacturing apparatus for winding an image receiving sheet used as a medium for recording an image in an image forming apparatus to manufacture an image receiving recording medium roll,
A defective portion detecting means for detecting a defective portion of the image receiving sheet;
A defective part recognizing means for recognizing the detected defective part;
A defect location recording unit that records information indicating a recognized defect location on the image receiving recording medium roll or an information storage medium separated from the image receiving recording medium roll in a state readable by the image forming apparatus,
An apparatus for manufacturing an image receiving recording medium roll, comprising:

Images