CN116812603A - Printing paper conveying interval control method and device - Google Patents
Printing paper conveying interval control method and device Download PDFInfo
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Abstract
本发明涉及图像形成领域，尤其涉及一种打印纸张传送间隔控制方法和装置。该应用于图像形成设备，图像形成设备设置有给纸辊和搬送辊，先获取打印纸张的纸张长度以及给纸辊与搬送辊之间的第一距离，然后根据纸张长度与第一距离之间的大小关系确定打印纸张是否符合卡纸条件，若确定打印纸张符合卡纸条件，则延长相邻的打印纸张之间的传送间隔，并基于延长后的传送间隔传送打印纸张。通过纸张长度与给纸辊、搬送辊之间距离的关系确定打印纸张之间的传送间隔，可有效防止打印纸张传送时出现卡纸现象。
The present invention relates to the field of image formation, and in particular, to a printing paper transport interval control method and device. This is applied to an image forming apparatus. The image forming apparatus is provided with a paper feeding roller and a conveying roller. The paper length of the printing paper and the first distance between the paper feeding roller and the conveying roller are first obtained, and then the distance between the paper length and the first distance is obtained. The size relationship determines whether the printing paper meets the jam conditions. If it is determined that the printing paper meets the jam conditions, the transmission interval between adjacent printing papers is extended, and the printing paper is transmitted based on the extended transmission interval. The conveying interval between printing papers is determined by the relationship between the length of the paper and the distance between the paper feed roller and the conveying roller, which can effectively prevent paper jams when the printing paper is conveyed.
Description
Technical Field
The present invention relates to the field of image formation, and more particularly, to a printing paper conveyance interval control method and apparatus.
Background
The image forming apparatus is provided with a paper feed roller and a conveying roller, the paper feed roller conveys printing paper from the paper extraction box to the conveying roller, when a paper head of the printing paper reaches the conveying roller, the paper feed roller can pause operation, and the next printing paper is conveyed after a certain time interval. In some printing scenarios, the length of the printing paper is smaller than the distance between the paper feeding roller and the conveying roller, when the tail of the printing paper leaves the paper feeding roller, the paper head does not reach the conveying roller yet, and the paper feeding roller still continuously runs to continuously convey the next printing paper. When the printing paper reaches the conveying roller, the interval between two adjacent printing paper is smaller, and paper jam is easy to occur.
Disclosure of Invention
The embodiment of the invention provides a printing paper conveying interval control method and device, which can effectively prevent paper jam during printing paper conveying by determining the conveying interval between printing papers according to the relationship between the length of the papers and the distance between a paper feeding roller and a conveying roller.
In a first aspect, an embodiment of the present invention provides a printing paper conveyance interval control method applied to an image forming apparatus provided with a paper feed roller and a conveyance roller, the method including:
acquiring a paper length of the printing paper, and a first distance between the paper feeding roller and the conveying roller;
determining whether the printing paper accords with a paper jam condition according to the size relation between the paper length and the first distance;
if the printing paper meets the jam condition, extending the conveying interval between the adjacent printing paper;
the printing paper is conveyed based on the extended conveyance interval.
In one embodiment, the obtaining a sheet length of the printing sheet includes:
the paper length of the printing paper is obtained from the printing parameters of the job to be printed.
In one embodiment, the image forming apparatus is provided with a paper feed sensor that acquires a paper length of a printing paper, comprising:
acquiring the transmission time required by the printing paper passing through the paper feeding sensor;
and determining the paper length according to the transmission time and the transmission speed of the paper feeding sensor.
In one embodiment, determining whether the print sheet meets a jam condition according to a magnitude relation between the sheet length and the first distance includes:
judging whether the paper length is smaller than the first distance;
if the length of the paper is smaller than the first distance, determining that the printing paper meets the jam condition;
and if the length of the paper is larger than or equal to the first distance, determining that the printing paper does not meet the paper jam condition.
In one embodiment, the determining whether the printing paper meets the jam condition according to the size relation between the paper length and the first distance includes:
determining a difference in the sheet length from the first distance;
and if the paper length is determined to be smaller than the first distance and the absolute value of the difference value between the paper length and the first distance is greater than a first threshold value, determining that the printing paper meets the jam condition, otherwise, determining that the printing paper does not meet the jam condition.
In one embodiment, the extending the conveyance interval between adjacent printing sheets includes:
determining a first conveyance interval according to a difference between the sheet length and the first distance;
and replacing the preset original transmission interval with the first transmission interval.
In one embodiment, the transporting the printing paper based on the extended transport interval includes:
when detecting that the paper head of the currently conveyed printing paper reaches the conveying roller, controlling the paper feeding roller to pause operation;
and after the duration of the first conveying interval, controlling the paper feeding roller to run again so as to convey the next printing paper.
In a second aspect, an embodiment of the present invention provides a printing paper conveyance interval control apparatus disposed in an image forming apparatus provided with a paper feed roller and a conveyance roller, the apparatus including:
an acquisition module configured to acquire a sheet length of a printing sheet and a first distance between the paper feed roller and the conveyance roller;
the judging module is used for determining whether the printing paper accords with the paper jam condition according to the size relation between the paper length and the first distance;
a processing module for extending a conveyance interval between adjacent printing sheets if it is determined that the printing sheets meet the jam condition;
and a control module for conveying the printing paper based on the extended conveying interval.
In one embodiment, the obtaining a sheet length of the printing sheet includes:
the paper length of the printing paper is obtained from the printing parameters of the job to be printed.
In one embodiment, the image forming apparatus is provided with a paper feed sensor that acquires a paper length of a printing paper, comprising:
acquiring the transmission time required by the printing paper passing through the paper feeding sensor;
and determining the paper length according to the transmission time and the transmission speed of the paper feeding sensor.
In one embodiment, determining whether the print sheet meets a jam condition according to a magnitude relation between the sheet length and the first distance includes:
judging whether the paper length is smaller than the first distance;
if the length of the paper is smaller than the first distance, determining that the printing paper meets the jam condition;
and if the length of the paper is larger than or equal to the first distance, determining that the printing paper does not meet the paper jam condition.
In one embodiment, the determining whether the printing paper meets the jam condition according to the size relation between the paper length and the first distance includes:
determining a difference in the sheet length from the first distance;
and if the paper length is determined to be smaller than the first distance and the absolute value of the difference value between the paper length and the first distance is greater than a first threshold value, determining that the printing paper meets the jam condition, otherwise, determining that the printing paper does not meet the jam condition.
In one embodiment, the extending the conveyance interval between adjacent printing sheets includes:
determining a first conveyance interval according to a difference between the sheet length and the first distance;
and replacing the preset original transmission interval with the first transmission interval.
In one embodiment, the transporting the printing paper based on the extended transport interval includes:
when detecting that the paper head of the currently conveyed printing paper reaches the conveying roller, controlling the paper feeding roller to pause operation;
and after the duration of the first conveying interval, controlling the paper feeding roller to run again so as to convey the next printing paper.
In a third aspect, an embodiment of the present invention provides an electronic chip, including:
at least one processor; and
at least one memory communicatively coupled to the processor, wherein:
the memory stores program instructions that are invoked by the processor to perform the method provided in the first aspect.
In a fourth aspect, embodiments of the present invention provide a computer-readable storage medium including a stored program, wherein the program when executed by a processor implements the method provided in the first aspect.
In the embodiment of the invention, the image forming device is provided with the paper feeding roller and the conveying roller, the paper length of the printing paper and the first distance between the paper feeding roller and the conveying roller are firstly obtained, then whether the printing paper meets the jam condition is determined according to the size relation between the paper length and the first distance, if the printing paper meets the jam condition is determined, the conveying interval between the adjacent printing paper is prolonged, and the printing paper is conveyed based on the prolonged conveying interval. The conveying interval between the printing paper sheets is determined by the relation between the length of the paper sheets and the distance between the paper feeding roller and the conveying roller, so that the paper jam phenomenon can be effectively prevented when the printing paper sheets are conveyed.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions of the prior art, the following description will briefly explain the drawings used in the embodiments or the description of the prior art, and it is obvious that the drawings in the following description are some embodiments of the present invention, and other drawings can be obtained according to these drawings without inventive effort for a person skilled in the art.
Fig. 1 is a schematic structural view of a printing paper conveying interval control device according to an embodiment of the present invention;
FIG. 2 is a flow chart of a printing sheet conveyance interval control method according to an embodiment of the present invention;
FIG. 3 is a schematic view of another printing sheet conveying interval control device according to an embodiment of the present invention;
fig. 4 is a schematic structural diagram of an electronic device according to an embodiment of the present invention.
Detailed Description
For a better understanding of the technical solutions of the present specification, the following detailed description of the embodiments of the present invention refers to the accompanying drawings.
It should be understood that the described embodiments are only some, but not all, of the embodiments of the present description. All other embodiments, which can be made by one of ordinary skill in the art based on the embodiments herein without making any inventive effort, are intended to be within the scope of the present disclosure.
The terminology used in the embodiments of the invention is for the purpose of describing particular embodiments only and is not intended to be limiting of the description. As used in this application and the appended claims, the singular forms "a," "an," and "the" are intended to include the plural forms as well, unless the context clearly indicates otherwise.
In the embodiment of the present invention, the image forming apparatus (such as a printer or a copier) may have a structure in which, as shown in fig. 1, a paper feed roller 101, a separation roller 102, a sensor 103, a first conveying roller 104, a sensor 105, and a second conveying roller 106 are provided inside, and as shown in fig. 1, when the image forming apparatus performs a print job, a print sheet passes through the paper feed roller 101, the separation roller 102, the sensor 103, the first conveying roller 104, and the sensor 105 in this order, and finally reaches the second conveying roller 106. The second conveying roller 106 (may also be referred to as a correction roller) may be used to convey and correct the printing paper, and the image forming apparatus needs to ensure that the paper length of the printing paper is not less than the distance between the paper feed roller 101 and the second conveying roller 106 to reduce the probability of occurrence of the jam phenomenon.
Taking two adjacent printing sheets (printing sheet a and printing sheet B) as an example, it is assumed that the sheet lengths of the printing sheet a and the printing sheet B are equal to the distance between the paper feed roller 101 and the second conveying roller 106. When the image forming apparatus detects that the paper head of the printing paper a reaches the second conveying roller 106 through the sensor 105, the paper feed roller 101 is controlled to stop running, and the second conveying roller 106 and the first conveying roller 104 can supply power to continue conveying the printing paper a. After a preset conveyance interval, the tail of the printing paper a is usually separated from the paper feeding roller 101, and the image forming apparatus controls the paper feeding roller 101 to continue to operate, and conveys the printing paper B, where the head of the printing paper B is kept at a certain distance (e.g., ymm) from the tail of the printing paper a, so as to avoid paper jam at the second conveying roller 106. If the sheet length of the printing sheets (printing sheet C and printing sheet D) is smaller than the distance between the paper feed roller 101 and the second conveying roller 106, when the tail of the printing sheet C leaves the paper feed roller 101, the paper feed roller 101 continues to run to convey the printing sheet D until the paper head of the printing sheet C reaches the second conveying roller 106, and stops running. Assuming that the paper feed roller 101 is suspended in operation, the paper head of the printing paper D has already been conveyed by Xmm, after a preset conveyance interval, the printing paper D continues to be conveyed by the paper feed roller 101, and the distance between the printing paper C and the printing paper D is (Y-X) mm, which may be smaller than the safety distance, so that the printing paper C and the printing paper D jam at the second conveyance roller 106.
In view of the foregoing, embodiments of the present invention provide a printing paper conveyance interval control method. The method may be applied to an image forming apparatus, as shown in fig. 2, and may include:
step 201, a paper length of a printing paper is acquired, and a first distance between a paper feeding roller and a conveying roller is acquired.
In the embodiment of the invention, after the image forming device receives the job to be printed, the paper length of the printing paper can be obtained from the printing parameters. And the first distance between the paper feed roller and the conveying roller is a known amount, which can be stored in advance in the storage space of the image forming apparatus.
In one embodiment, the image forming apparatus is provided with a paper feed sensor, and the image forming apparatus can determine the paper length of the printing paper by the paper feed sensor during the conveyance of the printing paper, specifically, the image forming apparatus multiplies the time required for the printing paper to pass the paper feed sensor by the running speed of the paper feed sensor, and can obtain the paper length of the printing paper. The length of the paper detected by the paper feeding sensor is more accurate, and in some cases, the specification of the printing paper in the paper extraction box is different from the printing parameters, and errors may exist in obtaining the length of the paper by the printing parameters.
Step 202, determining whether the printing paper accords with the jam condition according to the size relation between the length of the paper and the first distance.
A sheet length of the printing sheet being smaller than the first distance may cause a distance between adjacent two printing sheets to be smaller than the safety distance, and therefore, a sheet length of the printing sheet being smaller than the first distance may be regarded as a jam condition. The image forming apparatus determines that the printing paper meets the jam condition if the paper length is determined to be smaller than the first distance, and determines that the printing paper does not meet the jam condition if the paper length is determined to be greater than or equal to the first distance.
In one embodiment, although the paper length of the printing paper is less than the first distance, paper jam may occur, if the paper length is very close to the first distance, the distance between two adjacent printing papers is greater than the safe distance, and no paper jam occurs. Accordingly, the image forming apparatus may further determine a difference between the length of the sheet and the first distance, determine that the printing sheet meets the jam condition if it is determined that the length of the sheet is smaller than the first distance and an absolute value of the difference between the length of the sheet and the first distance is greater than a first threshold, and otherwise determine that the printing sheet does not meet the jam condition. It will be appreciated that the difference between the length of the sheet and the first distance determines X, and that the larger the absolute value of the difference, the larger X, the smaller the distance (Y-X) between two adjacent printing sheets, and if (Y-X) is smaller than the safe distance, the paper jam is likely to occur. The first threshold may be set reasonably based on the actual situation.
In step 203, if it is determined that the printing paper meets the jam condition, the conveyance interval between the adjacent printing papers is extended.
The conveying interval of the embodiment of the invention is a time interval from the pause operation to the re-operation of the paper feeding roller, and when the image forming device detects that the paper head of the printing paper reaches the conveying roller, the image forming device controls the paper feeding roller to pause operation and controls the paper feeding roller to re-operate after passing through the conveying interval. If the image forming apparatus determines that the printing paper meets the jam condition, it is necessary to lengthen the conveyance interval so that the distance between adjacent printing papers increases.
In one embodiment, the image forming apparatus may determine the first conveyance interval according to a difference between a paper length of the printing paper and the first distance, and then replace the preset original conveyance interval with the first conveyance interval. For example, the original conveyance interval is 2 seconds, the image forming apparatus determines that the first conveyance interval is 3 seconds based on the difference between the sheet length and the first distance, and then the sheet feeding roller is restarted 3 seconds after the pause of the operation. The larger the absolute value of the difference between the sheet length and the first distance, the larger the first conveyance interval calculated by the image forming apparatus.
Step 204, conveying the printing paper based on the extended conveying interval.
Taking the printing paper a and the printing paper B as examples, when the paper head of the printing paper B reaches the conveying roller, if the paper head of the printing paper B is close to the paper tail of the printing paper a, a paper jam phenomenon may occur. In the embodiment of the invention, when the image forming device detects that the paper head of the printing paper A reaches the conveying roller, the paper feeding roller is controlled to stop running, the conveying roller continuously runs to convey the printing paper A, and after the first conveying interval, the paper feeding roller re-runs to convey the printing paper B, and as the first conveying interval is larger, the distance between the paper tail of the printing paper A and the paper head of the printing paper B is larger, and when the paper head of the printing paper B reaches the conveying roller, the paper jam phenomenon image can not occur.
In the embodiment of the invention, the image forming device determines the conveying interval between the printing paper sheets through the relationship between the length of the paper sheets and the distance between the paper feeding roller and the conveying roller, so that the paper jam phenomenon can be effectively prevented when the printing paper sheets are conveyed.
Fig. 3 is a schematic structural view of a printing paper conveying interval control device according to an embodiment of the present invention. The apparatus may be deployed in an image forming device to implement a printing paper conveying interval control method provided by an embodiment of the present invention, as shown in fig. 3, the apparatus may include: the device comprises an acquisition module 310, a judgment module 320, a processing module 330 and a control module 340.
An acquisition module 310 for acquiring a sheet length of the printing sheet and a first distance between the paper feed roller and the conveyance roller.
A judging module 320, configured to determine whether the printing paper meets the jam condition according to the size relationship between the length of the paper and the first distance.
And a processing module 330 for extending a conveyance interval between adjacent printing sheets if it is determined that the printing sheets meet the jam condition.
A control module 340 for conveying the printing paper based on the extended conveyance interval.
In one embodiment, the acquisition module 310 may acquire the sheet length of the print sheet from the print parameters of the job to be printed. Alternatively, the acquisition module 310 acquires a conveyance time required for the printing paper to pass through the paper feed sensor, and then determines the paper length according to the conveyance time and the conveyance speed of the paper feed sensor.
In one embodiment, the determining module 320 may determine whether the length of the paper is less than the first distance, and if the length of the paper is less than the first distance, determine that the print paper meets the jam condition; if the length of the paper is greater than or equal to the first distance, the printing paper is determined to be not in accordance with the jam condition.
In one embodiment, the determination module 320 may determine a difference between the paper length and the first distance; and if the length of the paper is determined to be smaller than the first distance and the absolute value of the difference value between the length of the paper and the first distance is greater than a first threshold value, determining that the printing paper meets the jam condition, otherwise, determining that the printing paper does not meet the jam condition.
In one embodiment, the processing module 330 may determine the first conveyance interval according to a difference between the length of the paper and the first distance, and then replace the preset original conveyance interval with the first conveyance interval.
In one embodiment, the control module 340 controls the paper feed roller to pause when detecting that the paper head of the currently conveyed printing paper reaches the conveying roller; after the lapse of the duration of the first conveyance interval, the paper feed roller is controlled to re-operate to convey the next printing paper.
Fig. 4 is a schematic structural diagram of an electronic device according to an embodiment of the present invention. The electronic device shown in fig. 4 is only an example and should not be construed as limiting the functionality and scope of use of the embodiments of the present invention.
As shown in fig. 4, the electronic device is in the form of a general purpose computing device. Components of an electronic device may include, but are not limited to: one or more processors 410, a memory 430, and a communication bus 440 that connects the different system components (including the memory 430 and the processor 410).
The communication bus 440 represents one or more of several types of bus structures, including a memory bus or memory controller, a peripheral bus, an accelerated graphics port, a processor, or a local bus using any of a variety of bus architectures. By way of example, and not limitation, such architectures include industry Standard architecture (Industry Standard Architecture; hereinafter ISA) bus, micro channel architecture (Micro Channel Architecture; hereinafter MAC) bus, enhanced ISA bus, video electronics standards Association (Video Electronics Standards Association; hereinafter VESA) local bus, and peripheral component interconnect (Peripheral Component Interconnection; hereinafter PCI) bus.
Electronic devices typically include a variety of computer system readable media. Such media can be any available media that can be accessed by the electronic device and includes both volatile and nonvolatile media, removable and non-removable media.
Memory 430 may include computer system readable media in the form of volatile memory, such as random access memory (Random Access Memory; hereinafter: RAM) and/or cache memory. The electronic device may further include other removable/non-removable, volatile/nonvolatile computer system storage media. Although not shown in fig. 4, a magnetic disk drive for reading from and writing to a removable non-volatile magnetic disk (e.g., a "floppy disk"), and an optical disk drive for reading from or writing to a removable non-volatile optical disk (e.g., a compact disk read only memory (Compact Disc Read Only Memory; hereinafter CD-ROM), digital versatile read only optical disk (Digital Video Disc Read Only Memory; hereinafter DVD-ROM), or other optical media) may be provided. In such cases, each drive may be coupled to communication bus 440 by one or more data medium interfaces. Memory 430 may include at least one program product having a set (e.g., at least one) of program modules configured to carry out the functions of the embodiments of the invention.
A program/utility having a set (at least one) of program modules may be stored in the memory 430, such program modules including, but not limited to, an operating system, one or more application programs, other program modules, and program data, each or some combination of which may include an implementation of a network environment. Program modules typically carry out the functions and/or methods of the embodiments described herein.
The electronic device may also communicate with one or more external devices, with one or more devices that enable a user to interact with the electronic device, or with any device (e.g., network card, modem, etc.) that enables the electronic device to communicate with one or more other computing devices. Such communication may occur through communication interface 420. Moreover, the electronic device may also communicate with one or more networks (e.g., local area network (Local Area Network; hereinafter: LAN), wide area network (Wide Area Network; hereinafter: WAN) and/or a public network, such as the Internet) via a network adapter (not shown in FIG. 4) that may communicate with other modules of the electronic device via the communication bus 440. It should be appreciated that although not shown in fig. 4, other hardware and/or software modules may be used in connection with an electronic device, including but not limited to: microcode, device drivers, redundant processing units, external disk drive arrays, disk arrays (Redundant Arrays of Independent Drives; hereinafter RAID) systems, tape drives, data backup storage systems, and the like.
The processor 410 executes various functional applications and data processing by running a program stored in the memory 430, for example, to implement the printing paper conveyance interval control method provided by the embodiment of the present invention.
The embodiment of the invention also provides a computer readable storage medium, which stores computer instructions for causing the computer to execute the printing paper conveying interval control method provided by the embodiment of the invention.
Any combination of one or more computer readable media may be utilized as the above-described computer readable storage media. The computer readable medium may be a computer readable signal medium or a computer readable storage medium. The computer readable storage medium can be, for example, but not limited to, an electronic, magnetic, optical, electromagnetic, infrared, or semiconductor system, apparatus, or device, or a combination of any of the foregoing. More specific examples (a non-exhaustive list) of the computer-readable storage medium would include the following: an electrical connection having one or more wires, a portable computer diskette, a hard disk, a Random Access Memory (RAM), a Read-Only Memory (ROM), an erasable programmable Read-Only Memory (Erasable Programmable Read Only Memory; EPROM) or flash Memory, an optical fiber, a portable compact disc Read-Only Memory (CD-ROM), an optical storage device, a magnetic storage device, or any suitable combination of the foregoing. In this document, a computer readable storage medium may be any tangible medium that can contain, or store a program for use by or in connection with an instruction execution system, apparatus, or device.
The computer readable signal medium may include a propagated data signal with computer readable program code embodied therein, either in baseband or as part of a carrier wave. Such a propagated data signal may take any of a variety of forms, including, but not limited to, electro-magnetic, optical, or any suitable combination of the foregoing. A computer readable signal medium may also be any computer readable medium that is not a computer readable storage medium and that can communicate, propagate, or transport a program for use by or in connection with an instruction execution system, apparatus, or device.
Program code embodied on a computer readable medium may be transmitted using any appropriate medium, including but not limited to wireless, wireline, optical fiber cable, RF, etc., or any suitable combination of the foregoing.
In the description of the present specification, a description referring to terms "one embodiment," "some embodiments," "examples," "specific examples," or "some examples," etc., means that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the present invention. In this specification, schematic representations of the above terms are not necessarily directed to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples. Furthermore, the different embodiments or examples described in this specification and the features of the different embodiments or examples may be combined and combined by those skilled in the art without contradiction.
Furthermore, the terms "first," "second," and the like, are used for descriptive purposes only and are not to be construed as indicating or implying a relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defining "a first" or "a second" may explicitly or implicitly include at least one such feature. In the description of the present invention, the meaning of "plurality" means at least two, for example, two, three, etc., unless specifically defined otherwise.
Any process or method descriptions in flow charts or otherwise described herein may be understood as representing modules, segments, or portions of code which include one or more executable instructions for implementing specific logical functions or steps of the process, and additional implementations are included within the scope of the preferred embodiment of the present invention in which functions may be executed out of order from that shown or discussed, including substantially concurrently or in reverse order from that shown or discussed, depending on the functionality involved, as would be understood by those reasonably skilled in the art of the embodiments of the present invention.
In the several embodiments provided by the present invention, it should be understood that the disclosed systems, devices, and methods may be implemented in other manners. For example, the apparatus embodiments described above are merely illustrative, e.g., the division of the elements is merely a logical function division, and there may be additional divisions when actually implemented, e.g., multiple elements or components may be combined or integrated into another system, or some features may be omitted or not performed. Alternatively, the coupling or direct coupling or communication connection shown or discussed with each other may be an indirect coupling or communication connection via some interfaces, devices or units, which may be in electrical, mechanical or other form.
In addition, each functional unit in the embodiments of the present invention may be integrated in one processing unit, or each unit may exist alone physically, or two or more units may be integrated in one unit. The integrated units may be implemented in hardware or in hardware plus software functional units.
The foregoing description of the preferred embodiments of the invention is not intended to be limiting, but rather to enable any modification, equivalent replacement, improvement or the like to be made within the spirit and principles of the invention.
Claims (16)
1. A method of controlling paper conveyance, the method being applied to an image forming apparatus provided with a paper feed roller and a conveyance roller, the method comprising:
acquiring a paper length of the printing paper, and a first distance between the paper feeding roller and the conveying roller;
determining whether the printing paper accords with a paper jam condition according to the size relation between the paper length and the first distance;
if the printing paper meets the jam condition, extending the conveying interval between the adjacent printing paper;
the printing paper is conveyed based on the extended conveyance interval.
2. The method of claim 1, wherein the obtaining a sheet length of the print sheet comprises:
the paper length of the printing paper is obtained from the printing parameters of the job to be printed.
3. The method according to claim 1, wherein the image forming apparatus is provided with a paper feed sensor, and the acquiring the paper length of the printing paper includes:
acquiring the transmission time required by the printing paper passing through the paper feeding sensor;
and determining the paper length according to the transmission time and the transmission speed of the paper feeding sensor.
4. The method according to claim 1, wherein determining whether the print sheet meets a jam condition based on a magnitude relation between the sheet length and the first distance includes:
judging whether the paper length is smaller than the first distance;
if the length of the paper is smaller than the first distance, determining that the printing paper meets the jam condition;
and if the length of the paper is larger than or equal to the first distance, determining that the printing paper does not meet the paper jam condition.
5. The method of claim 1, wherein determining whether the print sheet meets a jam condition based on a size relationship between the sheet length and the first distance comprises:
determining a difference in the sheet length from the first distance;
and if the paper length is determined to be smaller than the first distance and the absolute value of the difference value between the paper length and the first distance is greater than a first threshold value, determining that the printing paper meets the jam condition, otherwise, determining that the printing paper does not meet the jam condition.
6. The method according to claim 1, wherein the extending the conveyance interval between adjacent printing sheets includes:
determining a first conveyance interval according to a difference between the sheet length and the first distance;
and replacing the preset original transmission interval with the first transmission interval.
7. The method of claim 6, wherein the transporting the printing sheet based on the extended transport interval comprises:
when detecting that the paper head of the currently conveyed printing paper reaches the conveying roller, controlling the paper feeding roller to pause operation;
and after the duration of the first conveying interval, controlling the paper feeding roller to run again so as to convey the next printing paper.
8. A control apparatus, characterized in that the apparatus is disposed in an image forming apparatus provided with a paper feed roller and a conveyance roller, the apparatus comprising:
an acquisition module configured to acquire a sheet length of a printing sheet and a first distance between the paper feed roller and the conveyance roller;
the judging module is used for determining whether the printing paper accords with the paper jam condition according to the size relation between the paper length and the first distance;
a processing module for extending a conveyance interval between adjacent printing sheets if it is determined that the printing sheets meet the jam condition;
and a control module for conveying the printing paper based on the extended conveying interval.
9. The apparatus of claim 8, wherein the acquiring the sheet length of the print sheet comprises:
the paper length of the printing paper is obtained from the printing parameters of the job to be printed.
10. The apparatus according to claim 8, wherein the image forming device is provided with a paper feed sensor, and the acquiring the paper length of the printing paper includes:
acquiring the transmission time required by the printing paper passing through the paper feeding sensor;
and determining the paper length according to the transmission time and the transmission speed of the paper feeding sensor.
11. The apparatus of claim 8, wherein determining whether the print sheet meets a jam condition based on a magnitude relationship between the sheet length and the first distance comprises:
judging whether the paper length is smaller than the first distance;
if the length of the paper is smaller than the first distance, determining that the printing paper meets the jam condition;
and if the length of the paper is larger than or equal to the first distance, determining that the printing paper does not meet the paper jam condition.
12. The apparatus of claim 8, wherein the determining whether the print sheet meets a jam condition based on a size relationship between the sheet length and the first distance comprises:
determining a difference in the sheet length from the first distance;
and if the paper length is determined to be smaller than the first distance and the absolute value of the difference value between the paper length and the first distance is greater than a first threshold value, determining that the printing paper meets the jam condition, otherwise, determining that the printing paper does not meet the jam condition.
13. The apparatus of claim 8, wherein the extending the conveyance interval between adjacent printing sheets comprises:
determining a first conveyance interval according to a difference between the sheet length and the first distance;
and replacing the preset original transmission interval with the first transmission interval.
14. The apparatus of claim 13, wherein the transporting the printing sheet based on the extended transport interval comprises:
when detecting that the paper head of the currently conveyed printing paper reaches the conveying roller, controlling the paper feeding roller to pause operation;
and after the duration of the first conveying interval, controlling the paper feeding roller to run again so as to convey the next printing paper.
15. An electronic device, comprising:
at least one processor; and
at least one memory communicatively coupled to the processor, wherein:
the memory stores program instructions that are called by the processor to perform the method of any one of claims 1 to 7.
16. A computer readable storage medium, characterized in that the computer readable storage medium comprises a stored program, wherein the program when executed by a processor implements the method according to any one of claims 1 to 7.
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| CN202310898330.6A CN116812603A (en) | 2023-07-21 | 2023-07-21 | Printing paper conveying interval control method and device |
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| CN202310898330.6A CN116812603A (en) | 2023-07-21 | 2023-07-21 | Printing paper conveying interval control method and device |
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| CN104203784A (en) * | 2012-03-19 | 2014-12-10 | 夏普株式会社 | Paper sheet conveyance device, image forming device with same, and paper sheet conveyance method |
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| JPH09124185A (en) * | 1995-11-01 | 1997-05-13 | Canon Inc | Sheet transport device and image forming apparatus including the sheet transport device |
| JP2001348129A (en) * | 2000-06-07 | 2001-12-18 | Ricoh Co Ltd | Paper feeder and image forming apparatus |
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