CN112390050A - Printer and paper conveying method - Google Patents
Printer and paper conveying method Download PDFInfo
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- CN112390050A CN112390050A CN201910739213.9A CN201910739213A CN112390050A CN 112390050 A CN112390050 A CN 112390050A CN 201910739213 A CN201910739213 A CN 201910739213A CN 112390050 A CN112390050 A CN 112390050A
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- paper
- conveying
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
- B65H20/00—Advancing webs
- B65H20/02—Advancing webs by friction roller
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
- B41J—TYPEWRITERS; SELECTIVE PRINTING MECHANISMS, i.e. MECHANISMS PRINTING OTHERWISE THAN FROM A FORME; CORRECTION OF TYPOGRAPHICAL ERRORS
- B41J11/00—Devices or arrangements of selective printing mechanisms, e.g. ink-jet printers or thermal printers, for supporting or handling copy material in sheet or web form
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
- B41J—TYPEWRITERS; SELECTIVE PRINTING MECHANISMS, i.e. MECHANISMS PRINTING OTHERWISE THAN FROM A FORME; CORRECTION OF TYPOGRAPHICAL ERRORS
- B41J11/00—Devices or arrangements of selective printing mechanisms, e.g. ink-jet printers or thermal printers, for supporting or handling copy material in sheet or web form
- B41J11/0095—Detecting means for copy material, e.g. for detecting or sensing presence of copy material or its leading or trailing end
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
- B41J—TYPEWRITERS; SELECTIVE PRINTING MECHANISMS, i.e. MECHANISMS PRINTING OTHERWISE THAN FROM A FORME; CORRECTION OF TYPOGRAPHICAL ERRORS
- B41J11/00—Devices or arrangements of selective printing mechanisms, e.g. ink-jet printers or thermal printers, for supporting or handling copy material in sheet or web form
- B41J11/36—Blanking or long feeds; Feeding to a particular line, e.g. by rotation of platen or feed roller
- B41J11/42—Controlling printing material conveyance for accurate alignment of the printing material with the printhead; Print registering
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
- B41J—TYPEWRITERS; SELECTIVE PRINTING MECHANISMS, i.e. MECHANISMS PRINTING OTHERWISE THAN FROM A FORME; CORRECTION OF TYPOGRAPHICAL ERRORS
- B41J13/00—Devices or arrangements of selective printing mechanisms, e.g. ink-jet printers or thermal printers, specially adapted for supporting or handling copy material in short lengths, e.g. sheets
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
- B41J—TYPEWRITERS; SELECTIVE PRINTING MECHANISMS, i.e. MECHANISMS PRINTING OTHERWISE THAN FROM A FORME; CORRECTION OF TYPOGRAPHICAL ERRORS
- B41J13/00—Devices or arrangements of selective printing mechanisms, e.g. ink-jet printers or thermal printers, specially adapted for supporting or handling copy material in short lengths, e.g. sheets
- B41J13/0009—Devices or arrangements of selective printing mechanisms, e.g. ink-jet printers or thermal printers, specially adapted for supporting or handling copy material in short lengths, e.g. sheets control of the transport of the copy material
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
- B41J—TYPEWRITERS; SELECTIVE PRINTING MECHANISMS, i.e. MECHANISMS PRINTING OTHERWISE THAN FROM A FORME; CORRECTION OF TYPOGRAPHICAL ERRORS
- B41J15/00—Devices or arrangements of selective printing mechanisms, e.g. ink-jet printers or thermal printers, specially adapted for supporting or handling copy material in continuous form, e.g. webs
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
- B65H26/00—Warning or safety devices, e.g. automatic fault detectors, stop-motions, for web-advancing mechanisms
- B65H26/02—Warning or safety devices, e.g. automatic fault detectors, stop-motions, for web-advancing mechanisms responsive to presence of irregularities in running webs
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
- B65H2801/00—Application field
- B65H2801/03—Image reproduction devices
Landscapes
- Controlling Sheets Or Webs (AREA)
Abstract
The application relates to the technical field of printing, and discloses a printer and a paper conveying method. The printer of this application, through the entry at printing the passageway sets up the state detection mechanism who is used for detecting paper transport state, can be because printing transport mechanism and first transport mechanism's transmission difference, cause the paper to be under the unusual circumstances such as being stretched or piling up between first paper supply passageway and printing passageway, through the speed that first transport mechanism of adjustment first paper supply passageway carried the paper, change the abnormal state of paper, thereby guarantee the normal transport of paper, the problem of the printing effect of printer is influenced to the fact because paper transport is unusual has been improved, the reliability of printer work has been improved. The paper conveying method can be realized by the printer, so that the problem of poor printing effect caused by abnormal paper conveying can be solved, and the working reliability of the printer is improved.
Description
Technical Field
The application relates to the technical field of printing, in particular to a printer and a paper conveying method.
Background
The related art provides a printer, which includes a paper feeding path and a printing path, wherein the paper feeding path is located upstream of the printing path in an advancing direction of printing paper, a paper feeding and conveying mechanism is disposed in the paper feeding path, a printing and conveying mechanism is disposed in the printing path, the paper feeding and conveying mechanism drives the printing paper in the paper feeding path to advance and feed the printing paper into the printing path, and the printing and conveying mechanism drives the printing paper to advance in the printing path so that a printing head in the printing path completes printing on the printing paper.
The applicant has found that the printer of the related art is prone to the problem of paper transport anomalies, which may affect the printing effect of the printer or cause paper jams or even tears, thus reducing the reliability of the operation of the printer.
Disclosure of Invention
In order to overcome the above-mentioned deficiencies of the prior art, the present application aims to provide a printer and a paper conveying method.
In a first aspect, an embodiment of the present application provides a printer, including a first paper supply path, a first conveying mechanism, a printing path, a printing conveying mechanism, and a control device, where, along an advancing direction of paper during printing, the first paper supply path is located upstream of the printing path, the first conveying mechanism is configured to convey a first paper in the first paper supply path to the printing path, the printing conveying mechanism is configured to convey the paper in the printing path, a status detecting mechanism is disposed at an inlet of the printing path, the status detecting mechanism is configured to detect a conveying status of the paper, and the first conveying mechanism, the printing conveying mechanism, and the status detecting mechanism are all electrically connected to the control device, and the control device is configured to:
controlling a first conveying mechanism to convey a first paper sheet in a first paper feeding channel to a printing channel at a first speed;
judging whether paper conveying abnormity occurs according to a signal output by the state detection mechanism;
and in the case that the paper conveying abnormity is judged to occur, adjusting the speed of the first conveying mechanism for conveying the first paper so as to eliminate the paper conveying abnormity.
In an alternative embodiment, the paper conveyance abnormality includes an earner paper abnormality, the state detection mechanism includes a first state sensor that outputs a earner paper signal in a case where the earner paper abnormality occurs, and the control device is specifically configured to:
when the paper breaking abnormality is determined to occur according to the paper breaking signal output by the first state sensor, the speed of the first paper conveyed by the first conveying mechanism is increased from the first speed to the second speed to eliminate the paper breaking abnormality.
In an optional embodiment, the state detection mechanism further comprises a first trigger movably arranged at the inlet of the printing channel, and the first trigger can be pushed by the stretched paper to be matched with the first state sensor when an struggling paper abnormality occurs, so that the first state sensor outputs a struggling paper signal.
In an alternative embodiment, the paper conveyance abnormality includes a stacking abnormality, the state detection mechanism includes a second state sensor that outputs a stacking signal in a case where the stacking abnormality occurs, and the control device is specifically configured to:
when the occurrence of a stacking abnormality is determined based on the stacking signal output from the second state sensor, the speed at which the first sheet is conveyed by the first conveying mechanism is reduced from the first speed to a third speed to eliminate the stacking abnormality.
In an optional embodiment, the state detection mechanism further comprises a second trigger movably arranged at the inlet of the printing channel, and the second trigger can be pushed by the stacked paper to cooperate with the second state sensor when the stacking abnormality occurs, so that the second state sensor outputs the stacking signal.
In an alternative embodiment, the control means is further arranged to:
after the speed of the first paper conveyed by the first conveying mechanism is adjusted, whether the paper conveying is normal or not is judged according to the signal output by the state detection mechanism, and the speed of the first paper conveyed by the first conveying mechanism is recovered to the first speed under the condition that the paper conveying is judged to be normal.
In an alternative embodiment, the printer further includes a second paper feeding path and a second conveying mechanism, the second conveying mechanism is electrically connected to the control device, the second paper feeding path is located upstream of the printing path along an advancing direction of the paper during printing, the first paper feeding path and the second paper feeding path converge at an inlet of the printing path, the second conveying mechanism is used for conveying the second paper in the second paper feeding path to the printing path, an inspection sensor for detecting whether the paper is in the first paper feeding path is arranged in the first paper feeding path, the first conveying mechanism includes a first conveying roller assembly arranged in the first paper feeding path, the inspection sensor is located downstream of the first conveying roller assembly and is electrically connected to the control device, and the control device is further configured to:
controlling the second conveying mechanism to convey the second paper sheet in the second paper feed path to the printing path at a first speed in a case where it is determined that there is no paper in the first paper feed path based on the signal output from the inspection sensor;
judging whether paper conveying abnormity occurs according to a signal output by the state detection mechanism;
and in the case that the paper conveying abnormality is judged to occur, adjusting the speed of conveying the second paper by the second conveying mechanism so as to eliminate the paper conveying abnormality.
In an alternative embodiment, the inlet of the first paper feeding channel is further provided with a paper feeding sensor for detecting whether paper is at the inlet of the first paper feeding channel, the paper feeding sensor is electrically connected with the control device, and the control device is further configured to:
and under the condition that the entrance of the first paper feeding channel is determined to be changed from the non-paper state to the paper state according to the signal output by the paper feeding sensor, controlling the first conveying mechanism to drive the first paper positioned at the entrance of the first paper feeding channel to advance and convey the front end of the first paper to the loading position of the first paper feeding channel, wherein the loading position of the first paper feeding channel is positioned between the checking sensor and the first conveying roller assembly along the advancing direction of the first paper.
In a second aspect, an embodiment of the present application provides a paper conveying method applied to a printer, where the printer includes a first paper supply path, a first conveying mechanism, a printing path, and a printing and conveying mechanism, where the first paper supply path is located upstream of the printing path in an advancing direction of paper during printing, the first conveying mechanism is configured to convey a first paper in the first paper supply path to the printing path, the printing and conveying mechanism is configured to convey the paper in the printing path, a status detecting mechanism is provided at an inlet of the printing path, the status detecting mechanism is configured to detect a paper conveying status, and the paper conveying method includes:
controlling a first conveying mechanism to convey a first paper sheet in a first paper feeding channel to a printing channel at a first speed;
judging whether paper conveying abnormity occurs according to a signal output by the state detection mechanism;
and in the case that the paper conveying abnormity is judged to occur, adjusting the speed of the first conveying mechanism for conveying the first paper so as to eliminate the paper conveying abnormity.
In an optional embodiment, the paper conveying abnormality includes an earner abnormality, and in a case where it is determined that the paper conveying abnormality occurs, the speed at which the first conveying mechanism conveys the first paper is adjusted to eliminate the paper conveying abnormality, specifically including:
and under the condition that the struggling abnormality is judged to occur, the speed of the first paper conveyed by the first conveying mechanism is increased from the first speed to the second speed so as to eliminate the struggling abnormality.
In an optional embodiment, the paper transportation abnormality includes a paper stacking abnormality, and in a case where it is determined that the paper transportation abnormality occurs, the speed at which the first paper is transported by the first transport mechanism is adjusted to eliminate the paper transportation abnormality, specifically including:
and in the case of judging that the stacking abnormality occurs, reducing the speed of the first paper conveyed by the first conveying mechanism from the first speed to a third speed so as to eliminate the stacking abnormality.
Compared with the prior art, the method has the following beneficial effects:
the printer of the application, set up the state detection mechanism who is used for detecting paper transport state at the entry of printing the passageway, because the transmission difference of printing transport mechanism in the printing passageway and the first transport mechanism in the first paper supply passageway, cause the paper to be stretched or pile up the abnormal condition such as between first paper supply passageway and printing passageway, through the speed of the first transport mechanism transport paper of adjustment first paper supply passageway, change the abnormal state of paper, thereby guarantee the normal transport of paper, the problem of the printing effect of printer is influenced to the fact because paper transport is unusual has been improved, the reliability of printer work has been improved.
The paper conveying method can be realized by the printer, so that the problem of poor printing effect caused by abnormal paper conveying can be solved, and the working reliability of the printer is improved.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present application, the drawings that are required to be used in the embodiments will be briefly described below, it should be understood that the following drawings only illustrate some embodiments of the present application and therefore should not be considered as limiting the scope, and for those skilled in the art, other related drawings can be obtained from the drawings without inventive effort.
FIG. 1 is a schematic diagram of a printer according to an embodiment of the present disclosure;
FIG. 2 is a block diagram of the components of a printer according to one embodiment of the present application;
FIG. 3 is an enlarged view of a portion III of FIG. 1;
FIG. 4 is a schematic view of a status detection mechanism according to another embodiment of the present application;
fig. 5 is a flowchart of a sheet conveying method according to an embodiment of the present application.
Icon: 010-a printer; 100-a first paper feeding mechanism; 200-a first paper feed path; 210-a first paper feed sensor; 220-first ping sensor; 230-a first conveying mechanism; 232-a first motor; 234-a first conveyor roller assembly; 300-a second sheet feeding mechanism; 400-a second paper feed path; 410-a second paper feed sensor; 420-a second ping sensor; 430-a second conveying mechanism; 432-a second motor; 434-a second conveyor roller assembly; 500-a print channel; 510-a print feed mechanism; 511-a print roller; 512-a third motor; 520-a print head; 600-state detection means; 610-a base; 620-a first trigger; 621-a first flap; 630-a first status sensor; 640-a first resilient member; 650-a second trigger; 651-a second flap; 660 — a second status sensor; 670-a second elastic member; 680-a fixing plate; 700-a control device; 020-paper.
Detailed Description
In order to make the objects, technical solutions and advantages of the embodiments of the present application clearer, the technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application, and it is obvious that the described embodiments are some embodiments of the present application, but not all embodiments. The components of the embodiments of the present application, generally described and illustrated in the figures herein, can be arranged and designed in a wide variety of different configurations.
Thus, the following detailed description of the embodiments of the present application, presented in the accompanying drawings, is not intended to limit the scope of the claimed application, but is merely representative of selected embodiments of the application. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present application.
It should be noted that: like reference numbers and letters refer to like items in the following figures, and thus, once an item is defined in one figure, it need not be further defined and explained in subsequent figures.
In the description of the present application, it is further noted that, unless expressly stated or limited otherwise, the terms "disposed," "mounted," "connected," and "connected" are to be construed broadly, e.g., as meaning either a fixed connection, a removable connection, or an integral connection; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present application can be understood in a specific case by those of ordinary skill in the art.
The applicant has found that in the related art, a printer conveys a sheet using a sheet feeding path located upstream and a sheet printing path located downstream, and when the sheet is conveyed between the sheet feeding path and the sheet printing path, a leading end and a trailing end of the sheet are driven by conveying mechanisms in the two paths, respectively, and move in a downstream direction. In some cases (especially, in the case that a plurality of paper feeding channels correspond to the same printing channel), there are transmission errors in the conveying mechanism of the paper feeding channel and the conveying mechanism of the printing channel, and the conveying speeds of the paper feeding channel and the printing channel may be inconsistent. When paper breaking is abnormal, the printing effect is influenced, and paper tearing can be caused under severe conditions; when stacking paper is abnormal, the paper can be arched, folded or stacked between the paper supply channel and the printing channel, the printing effect can be influenced, and the phenomena of paper jam and the like can be caused under severe conditions. These conveyance anomalies described above all lead to poor printer stability and require frequent maintenance.
In order to improve the above-mentioned problems faced by the printers in the related art, the present application provides a printer and a sheet conveying method suitable for the printer. FIG. 1 is a schematic diagram of a printer according to an embodiment of the present disclosure; FIG. 2 is a block diagram of the components of a printer according to one embodiment of the present application. Referring to fig. 1 and 2, the present embodiment provides a dual-channel paper feeding printer 010, which includes a first paper feeding mechanism 100, a first paper feeding channel 200, a first conveying mechanism 230, a second paper feeding mechanism 300, a second paper feeding channel 400, a second conveying mechanism 430, a printing channel 500, a printing conveying mechanism 510, a status detecting mechanism 600, and a control device 700. In the paper feeding direction of the paper during printing, the first paper feeding mechanism 100 is located upstream of the first paper feeding path 200 and feeds the paper to the first paper feeding path 200, and the second paper feeding mechanism 300 is located upstream of the second paper feeding path 400 and feeds the paper to the second paper feeding path 400. Downstream ends of the first paper feed path 200 and the second paper feed path 400 are merged before an entrance of the printing path 500, and both the paper 020 fed out from the first paper feed path 200 and the second paper feed path 400 can enter the printing path 500 and be further conveyed in the printing path 500 by the printing conveying mechanism 510, so that the print head 520 of the printer 010 finishes printing on the paper 020. When one of the first paper feeding mechanism 100 and the second paper feeding mechanism 300 cannot feed paper due to paper shortage or failure, the other of the first paper feeding mechanism and the second paper feeding mechanism can be used for feeding paper 020, so that the time of stopping the printer 010 due to paper shortage or failure is reduced, and the printing efficiency is improved.
The first conveyance mechanism 230 is for driving the sheet 020 to be conveyed in the first sheet feed path 200. Fig. 3 is an enlarged view of a part III in fig. 1, and as shown in fig. 3, in the present embodiment, the first paper feed path 200 is a slit path through which a sheet medium such as a paper 020 can pass. First paper feed path 200 has an inlet at the upstream and an outlet at the downstream, and the leading end of paper 020 enters first paper feed path 200 from the inlet of first paper feed path 200, and, under the drive of first conveying mechanism 230, protrudes from the outlet of first paper feed path 200 and enters print path 500. Also, the paper 020 can continue to advance in the first paper feed path 200 to feed the paper to the print path 500 by the continuous driving of the first conveyance mechanism 230.
Specifically, the first conveying mechanism 230 includes a first motor 232 and a first conveying roller assembly 234 disposed in the first paper feeding channel 200, the first conveying roller assembly 234 includes a driving roller and a driven roller for clamping the paper 020, the first motor 232 is in transmission connection with the driving roller, an output shaft of the first motor 232 drives the driving roller of the first conveying roller assembly 234 to rotate when rotating, and the driven roller of the first conveying roller assembly 234 rotates when rotating, so that the paper 020 between the driving roller and the driven roller is conveyed in the first paper feeding channel 200. Among them, the rotational speeds of the two conveying rollers (i.e., the driving roller and the driven roller) of the first conveying roller assembly 234 determine the conveying speed of the sheet 020 in the first paper feeding path 200. In other embodiments, the first conveying mechanism 230 includes a plurality of conveying roller assemblies sequentially spaced in the first paper feed path 200, and optionally, the first conveying roller assembly 234 is the one closest to the entrance of the first paper feed path 200.
Further, a first paper feed sensor 210 is provided at the entrance of the first paper feed path 200, and the first paper feed sensor 210 is configured to detect whether paper is present at the entrance of the first paper feed path 200 to determine whether to start loading paper, that is, to cause the first conveying mechanism 230 to convey paper 020 into the first paper feed path 200. First inspection sensor 220 is also provided in first paper feed path 200 to detect whether paper 020 is present in first paper feed path 200 so that paper 020 is transported by second paper feed path 400 when paper 020 is not present in first paper feed path 200.
Further, in the advancing direction of the sheet 020 in the first sheet feeding path 200 at the time of printing, the first sheet feeding sensor 210 is located upstream of the first conveying roller assembly 234, the first inspection sensor 220 is located downstream of the first conveying roller assembly 234, and both the first sheet feeding sensor 210 and the first inspection sensor 220 may be implemented by using a photoelectric sensor. The photoelectric sensor outputs different signals under the condition that paper exists in the position of the photoelectric sensor and the paper does not exist in the position of the photoelectric sensor, and therefore whether the paper 020 exists in the position of the photoelectric sensor or not is detected.
Similar to the first paper feeding path 200, the second paper feeding path 400 of the embodiment of the present application is provided with a second paper feeding sensor 410 and a second inspection sensor 420, the second paper feeding sensor 410 is provided in the same manner and in the same operation as the first paper feeding sensor 210, and the second inspection sensor 420 is provided in the same manner and in the same operation as the first inspection sensor 220; the second conveying mechanism 430 includes a second conveying roller assembly 434 disposed in the second paper feeding channel 400 and a second motor 432 for driving the conveying roller of the second conveying roller assembly 434 to rotate, and the arrangement and operation principle of the second conveying mechanism 430 are the same as those of the first conveying mechanism 230, and therefore, the foregoing description can be referred to, and the details are not repeated herein. It should be noted that in other embodiments of the present application, the printer 010 may be a single-channel printer 010, or may have more paper feed channels. That is, the second paper feeding mechanism 300, the second paper feeding path 400 and the corresponding conveying mechanism, sensor, etc. may be omitted, or additional paper feeding paths and corresponding conveying mechanisms, sensors, etc. may be further added.
The printing conveyance mechanism 510 is used to drive the paper 020 to move in the printing path 500. The printing conveyance mechanism 510 includes a printing roller 511 and a third motor 512 that drives the printing roller 511 to rotate. The printing roller 511 is disposed in the printing channel 500, the printer 010 further includes a printing head 520 disposed opposite to the printing roller 511, the paper 020 passes between the printing head 520 and the printing roller 511, the printing roller 511 is connected to the third motor 512 in a transmission manner, and the printing roller 511 rotates when the third motor 512 rotates, so as to drive the paper 020 to move in the printing channel 500. In this embodiment, the printer 010 is a thermal printer, the printing conveying mechanism 510 includes a printing roller 511 opposite to the thermal printhead 520, in other embodiments, the printer 010 may also be a thermal transfer printer, a stylus printer, an inkjet printer, a laser printer, or the like, and the printing conveying mechanism 510 may also include a conveying roller arranged oppositely, and the application does not limit the specific type of the printer 010 and the specific form of the printing conveying mechanism 510.
In the present embodiment, the state detection mechanism 600 is located between the exit of the paper feed path and the entrance of the printing path 500 in the advancing direction of the paper 020 at the time of printing. As shown in the figure, the state detection mechanism 600 is provided near the entrance of the printing path 500, and detects whether or not a conveyance abnormality occurs in the sheet 020 fed out from the exit of the sheet feeding path (e.g., the first sheet feeding path 200 or the second sheet feeding path 400) before entering the printing path 500. As shown in fig. 3, the outlets of the first paper feed channel 200 and the second paper feed channel 400 are downward or obliquely downward, and the inlet of the printing channel 500 is also obliquely downward, so that when the front and rear ends of the paper 020 are located in the paper feed channel and the printing channel 500, respectively, the part of the paper 020 between the paper feed channel and the printing channel 500 is in a concave state. The status detection mechanism 600 is located above the paper 020, the status detection mechanism 600 includes a first trigger 620 movably disposed on the base 610 and a first status sensor 630 fixedly disposed on the base 610, and the base 610 is fixed relative to the printing channel 500. Paper 020 when taking place to struggle paper unusual and tight can upwards lift to promote first trigger 620 and remove, make first trigger 620 and first state sensor 630 cooperation, first state sensor 630 outputs and struggles paper signal, thereby makes to struggle paper unusual and can be detected. As shown in fig. 3, the status detection mechanism 600 further includes a first turning plate 621 rotatably connected to the base 610, the first trigger 620 is fixedly connected to the first turning plate 621, when the paper 020 is abnormal, the tightened paper 020 pushes the first turning plate 621 to rotate along the clockwise direction, the first turning plate 621 rotates to drive the first trigger 620 to rotate, so that the first trigger 620 is matched with the first status sensor 630, after the paper 020 is abnormal to be excluded, the first turning plate 621 rotates along the counterclockwise direction under the action of gravity, the first turning plate 621 rotates to drive the first trigger 620 to rotate, so that the first trigger 620 is separated from the first status sensor 630. The first status sensor 630 outputs different signals in both the case where the first trigger 620 is engaged with and disengaged from the first status sensor 630, wherein the first status sensor 630 outputs an earning signal in the case where the first trigger 620 is engaged with the first status sensor 630, and the first status sensor 630 outputs a signal that the sheet conveyance is restored to normal in the case where the first trigger 620 is disengaged from the first status sensor 630.
The state detection mechanism 600 of the embodiment shown in fig. 3 can detect an earned paper abnormality, so that the printer 010 can timely eliminate the earned paper abnormality to avoid affecting the printing effect or causing paper tearing. Fig. 4 is a schematic diagram of a status detection mechanism 600 according to another embodiment of the present application. As shown in fig. 4, in another embodiment of the present application, the status detection mechanism 600 can be used to detect a paper stacking abnormality in addition to an earned paper abnormality. As shown in fig. 4, in this embodiment, the status detecting mechanism 600 includes a first trigger 620 and a second trigger 650 movably connected to the base 610, and a first status sensor 630 and a second status sensor 660 fixed relative to the base 610, wherein in case of a struggling anomaly of the paper 020, the first trigger 620 cooperates with the first status sensor 630, the first status sensor 630 outputs a struggling signal, in case of a stacking anomaly of the paper 020, the second trigger 650 cooperates with the second status sensor 660, and the second status sensor 660 outputs a stacking signal.
Specifically, as shown in fig. 4, the state detection mechanism 600 further includes a fixing plate 680, a first turning plate 621 and a second turning plate 651. The fixed plate 680 is S-shaped having convex and concave portions. The first flap 621 is located below the upper convex portion of the fixed plate 680 and has an upper surface that is convex upward. One end of the first turning plate 621 is rotatably connected to the base 610, and the first trigger 620 is disposed at the other end of the first turning plate 621, and when the first trigger 620 rotates along with the rotation of the first turning plate 621, it can cooperate with the first status sensor 630. The second flap 651 is located below a recessed portion of the retaining plate 680 and has a recessed upper surface. One end of the second flap 651 is rotatably connected to the base 610, and the second trigger 650 is disposed at the other end of the second flap 651, so that when the second trigger 650 rotates along with the rotation of the second flap 651, it can cooperate with the second status sensor 660.
As shown in fig. 4, a channel through which the paper 020 passes is formed between the upper surfaces of the first flap 621 and the second flap 651 and the lower surface of the fixing plate 680, and when the paper 020 is not abnormally conveyed, the channel is S-shaped, so that the paper 020 is forced to move toward the printing channel 500 (not shown in fig. 4) in an S-shape when passing through the channel, that is, the paper 020 is in a convex form above the first flap 621 and in a concave form above the second flap 651. When the paper breaking abnormality occurs, the paper 020 is subjected to tensile force, and the convex and concave parts of the paper 020 tend to be leveled. Paper 020 promotes first turning plate 621 and rotates, and then makes first trigger 620 and first state sensor 630 cooperate, and first state sensor 630 output is earned the paper signal this moment, and it can be detected to be earned the paper unusual. In the whole process, the second turning plate 651 cannot be stressed to rotate, so that the second trigger 650 cannot be matched with the second state sensor 660. Similarly, when the stacking is abnormal, the paper 020 is stacked on the concave part of the S-shaped channel, the stacked paper 020 pushes the second turning plate 651 to rotate, the second trigger 650 is matched with the second state sensor 660, the second state sensor 660 outputs the stacking signal, and the stacking abnormality can be detected. In the whole process, the first turning plate 621 is not forced to rotate, so the first trigger 620 is not engaged with the first status sensor 630.
Furthermore, in order to enable the first turning plate 621 and the second turning plate 651 to be reset after the paper conveying is recovered to be normal, the normal conveying of the following paper 020 is prevented from being influenced. First turning plate 621 is connected with base 610 through first elastic component 640, first elastic component 640 provides reset force for first turning plate 621, under the unusual circumstances of the emergence struggling paper, under the promotion of paper 020, first turning plate 621 overcomes the elastic force of first elastic component 640 and rotates along the clockwise by its initial position, after struggling paper unusual and getting rid of, under the reset force effect of first elastic component 640, first turning plate 621 rotates along anticlockwise and gets back to its initial position, first trigger 620 separates with first state sensor 630, first state sensor 630 outputs the signal that paper transport resumes normally. The second turning plate 651 is connected with the base 610 through the second elastic piece 670, the second elastic piece 670 provides resetting force for the second turning plate 651, under the condition that paper stacking is abnormal, the second turning plate 651 overcomes the elastic force of the second elastic piece 670 and rotates along the anticlockwise direction from the initial position under the pushing of paper 020, after the paper stacking is abnormal and eliminated, under the action of the resetting force of the second elastic piece 670, the second turning plate 651 rotates along the clockwise direction and returns to the initial position, the second trigger piece 650 is separated from the second state sensor 660, and the second state sensor 660 outputs a signal that the paper conveying is normal. As shown in fig. 4, the first and second elastic members 640 and 670 may be springs. In this embodiment, the first state sensor 630 and the second state sensor 660 may be photoelectric sensors, proximity switches, or the like.
The control device 700 is electrically connected to the first motor 232 of the first conveying mechanism 230, the second motor 432 of the second conveying mechanism 430, the first state sensor 630, the second state sensor 660, the first paper feed sensor 210, the second paper feed sensor 410, the first inspection sensor 220, the second inspection sensor 420, and the third motor 512 of the printing and conveying mechanism 510, respectively, and the control device 700 is configured to: the first conveying mechanism 230 is controlled to convey the first paper in the first paper feed path 200 to the print path 500 at a first speed, the state detection mechanism 600 detects whether or not an abnormality in paper conveyance occurs, and if the occurrence of the abnormality in paper conveyance is detected, the speed at which the first conveying mechanism 230 conveys the first paper is adjusted to eliminate the abnormality in paper conveyance.
Through the printer 010 that this embodiment provided, can in time detect paper and carry unusually when printer 010 leads to paper to carry unusually because of the transmission difference of upper and lower reaches, and through the speed that the first conveying mechanism 230 of the first paper supply passageway 200 of adjustment carried paper 020, change the abnormal state of paper 020, thereby guarantee paper 020's normal transport, improved because paper carries unusually to cause paper jam, the problem of the printing effect of paper tearing or influence printer 010, improved the reliability of printer 010 work.
Specifically, the control device 700 is configured to increase the speed at which the first conveying mechanism 230 conveys the first sheet from the first speed to the second speed to exclude the broiling abnormality in the case where it is determined that the broiling abnormality occurs based on the broiling signal output from the first state sensor 630. Since the struggling abnormality is caused because the conveying speed of the first conveying mechanism 230 is smaller than the conveying speed of the printing conveying mechanism 510, by increasing the speed at which the first conveying mechanism 230 conveys the first paper, the tension state of the paper can be alleviated, thereby eliminating the struggling abnormality. Further, the second speed is greater than the speed at which the printing conveyance mechanism 510 conveys the sheet 020. Alternatively, the second speed may be set to 1.2 times, 1.5 times, twice, etc. the first speed. Alternatively, the first speed is approximately equal to the speed at which the printing conveyance mechanism 510 conveys the sheet 020, and the second speed may be set to 1.2 times, 1.5 times, twice, or the like the speed at which the printing conveyance mechanism 510 conveys the sheet 020.
Further, the control device 700 is configured to decrease the speed at which the first sheet is conveyed by the first conveying mechanism 230 from the first speed to the third speed to eliminate the stacking abnormality, in the case where it is determined that the stacking abnormality occurs based on the stacking signal output from the second state sensor 660. Since the stacking abnormality is caused because the conveying speed of the first conveying mechanism 230 is greater than the conveying speed of the printing conveying mechanism 510, by reducing the speed at which the first conveying mechanism 230 conveys the first sheet, the stacking state of the sheets can be alleviated, thereby eliminating the stacking abnormality. Further, the third speed is lower than the speed at which the printing conveyance mechanism 510 conveys the sheet 020. Alternatively, the third speed may be set to one-third, one-half, one-third, and so on of the first speed. Alternatively, the first speed is approximately equal to the speed at which the printing conveyance mechanism 510 conveys the sheet 020, and the third speed may be set to one-third, one-half, one-third, and so on as the speed at which the printing conveyance mechanism 510 conveys the sheet 020.
Further, the control device 700 is further configured to determine whether the paper conveyance is normal or not based on the signal output from the state detection mechanism 600 after adjusting the speed at which the first paper is conveyed by the first conveyance mechanism 230, and return the speed at which the first paper is conveyed by the first conveyance mechanism 230 to the first speed if it is determined that the paper conveyance is normal. In general, the difference between the paper conveying speeds of the first conveying mechanism 230 and the printing and conveying mechanism 510 is not large, and the paper struggling abnormality or the paper stacking abnormality occurs due to accumulation of errors caused by long-time operation of the printer 010. Therefore, the first speed is still likely to be the closest to the conveying speed of the printing conveyance mechanism 510 as compared with the second speed or the third speed after adjustment. If the sheet 020 is conveyed at the second speed or the third speed for a long time, it is likely to be counterproductive, causing another sheet conveyance abnormality. Therefore, after determining that the sheet conveyance is recovered to normal based on the signal output from the state detecting mechanism 600, the control device 700 restores the speed at which the first sheet is conveyed by the first conveying mechanism 230 to the first speed again to avoid the occurrence of another sheet conveyance abnormality that causes the opposite.
Further, control device 700 is configured to control second conveyance mechanism 430 to convey the second paper in second paper feed path 400 to print path 500 at the first speed in the case where it is determined that there is no paper in first paper feed path 200 based on the signal output from the inspection sensor, determine whether or not an abnormality in paper conveyance has occurred based on the signal output from state detection mechanism 600, and adjust the speed at which second conveyance mechanism 430 conveys the second paper to exclude the abnormality in paper conveyance in the case where it is determined that an abnormality in paper conveyance has occurred. The control device 700 of the present embodiment may also adopt a similar control manner to the first conveying mechanism 230 for the second conveying mechanism 430, so as to ensure that the normal conveyance of the paper sheet can be ensured also when the paper sheet is fed through the second paper feed path 400.
Further, the control device 700 is configured to control the first conveying mechanism 230 to drive the first paper sheet at the entrance of the first paper feed path 200 to advance and convey the leading end of the first paper sheet to the loading position of the first paper feed path 200, in a case where it is determined from the signal output by the paper entry sensor that the entrance of the first paper feed path 200 is changed from the no-paper state to the paper state, wherein the loading position of the first paper feed path 200 is located between the inspection sensor and the first conveying roller assembly 234 in the advancing direction of the first paper sheet. With this configuration, after the first paper feed mechanism 100 resumes the paper feed capability, it is possible to reload the paper 020 into the first paper feed path 200, so that it is possible to feed the paper to the print path 500 through the first paper feed path 200 again.
Fig. 5 is a flowchart of a sheet conveying method according to an embodiment of the present application, which is applied to the printer 010 according to the embodiment of the present application. As shown in fig. 5, the sheet conveying method of the embodiment of the present application includes:
step S100, the first conveying mechanism is controlled to convey the first paper in the first paper feed path to the print path at a first speed.
Taking the printer 010 provided in the embodiment of the present application as an example, the first sheet is a sheet 020 supplied by the first sheet supply mechanism 100 and conveyed in the first sheet supply path 200 by the first conveyance mechanism 230. The control device 700 causes the feed roller assembly of the first conveying mechanism 230 to drive the first sheet to be conveyed in the first sheet feed path 200 at the first speed by controlling the first motor 232 of the first conveying mechanism 230 to rotate at a preset speed.
Step S200, judging whether paper conveying abnormity occurs according to the signal output by the state detection mechanism.
Taking the printer 010 provided in the embodiment of the present application as an example, the state detection mechanism 600 can output an abnormality signal to the control device 700. The paper conveying abnormality includes a struggling abnormality and a stacking abnormality, taking the state detection mechanism 600 provided in the embodiment of fig. 3 as an example, the state detection mechanism 600 includes a first trigger 620 and a first state sensor 630, the first trigger 620 can be pushed by stretched and tensed paper 020 to rotate relative to the base 610, when the first trigger 620 rotates to a position matched with the first state sensor 630, the first state sensor 630 outputs a struggling signal, and when the control device 700 receives the struggling signal output by the first state sensor 630, it is determined that the struggling abnormality occurs. As shown in fig. 4, the status detection mechanism 600 may further include a second trigger 650 and a second status sensor 660, the second trigger 650 can be pushed by the stacked paper 020 to rotate relative to the base 610, and when the second trigger 650 rotates to a position matching the second status sensor 660, the second status sensor 660 outputs a stacking signal. When the control device 700 receives the stacking signal, it determines that a stacking abnormality has occurred.
And step S300, under the condition that the paper conveying abnormity is judged to occur, adjusting the speed of the first paper conveying mechanism for conveying the first paper to eliminate the paper conveying abnormity.
Taking the printer 010 of the embodiment of the present application as an example, after the control device 700 determines that a paper conveyance abnormality has occurred, the rotational speed of the first motor 232 of the first conveyance mechanism 230 is adjusted to adjust the speed at which the first paper is conveyed, thereby eliminating the paper conveyance abnormality.
Specifically, since the moving speed of the paper 020 in the printing path 500 is greater than the moving speed of the paper 020 in the first paper feeding path 200 in the case that the speed at which the paper is conveyed by the printing and conveying mechanism 510 is greater than the speed at which the paper is conveyed by the first conveying mechanism 230 (i.e., the first speed), the paper 020 at the state detecting mechanism 600 may be strained, that is, a paper-shake abnormality occurs. In the case where it is determined that an earned paper abnormality occurs, the control device 700 increases the speed at which the first conveying mechanism 230 conveys the first paper sheet from the first speed to the second speed to exclude the earned paper abnormality. Wherein the second speed is greater than the speed at which the printing conveyance mechanism 510 conveys the sheet 020. Alternatively, the second speed may be set to 1.2 times, 1.5 times, twice, etc. the first speed. Alternatively, the first speed is approximately equal to the speed at which the printing conveyance mechanism 510 conveys the sheet 020, and the second speed may be set to 1.2 times, 1.5 times, twice, or the like the speed at which the printing conveyance mechanism 510 conveys the sheet 020. The speed of conveying the first paper by the first conveying mechanism 230 can be increased to enable the moving speed of the paper 020 in the first paper feeding channel 200 to be greater than that of the paper 020 in the printing channel 500, so that the paper breaking-out abnormality is eliminated, and the phenomenon that the printing effect is influenced or the paper is torn due to the paper breaking-out abnormality is avoided.
Since the moving speed of the sheet 020 in the printing path 500 is lower than the moving speed of the sheet 020 in the first paper feeding path 200 in the case where the speed of the sheet conveyed by the printing conveyance mechanism 510 is lower than the speed of the sheet conveyed by the first conveyance mechanism 230 (i.e., the first speed), the sheet 020 at the state detection mechanism 600 is piled, that is, a stacking abnormality occurs. When determining that a stacking fault has occurred, the control device 700 reduces the speed at which the first sheet is conveyed by the first conveying mechanism 230 from the first speed to the third speed to eliminate the stacking fault. Wherein the third speed is lower than the speed at which the printing conveyance mechanism 510 conveys the sheet 020. Alternatively, the third speed may be set to one-third, one-half, one-third, and so on of the first speed. Alternatively, the first speed is approximately equal to the speed at which the printing conveyance mechanism 510 conveys the sheet 020, and the third speed may be set to one-third, one-half, one-third, and so on as the speed at which the printing conveyance mechanism 510 conveys the sheet 020. By reducing the speed of the first conveying mechanism 230 for conveying the first paper, the moving speed of the paper 020 in the first paper feeding channel 200 can be made to be lower than the moving speed of the paper 020 in the printing channel 500, so that paper stacking abnormality is eliminated, and the phenomenon that the printing effect is influenced or paper jam is caused due to the occurrence of the paper stacking abnormality is avoided.
Further, the paper conveying method according to the embodiment of the present application may further include: after the speed of the first paper conveyed by the first conveying mechanism 230 is adjusted, whether the conveyance of the paper 020 is recovered to normal is judged according to the signal output by the state detection mechanism 600, and if the conveyance of the paper 020 is judged to be recovered to normal, the speed of the first paper conveyed by the first conveying mechanism 230 is recovered to the first speed.
When a paper conveyance abnormality occurs, the conveyance speed of the first conveying mechanism 230 is adjusted to the second speed or the third speed in order to quickly eliminate the paper conveyance abnormality caused by the mismatch of the upstream and downstream conveyance speeds of the paper 020 in the conveyance direction, but in general, the difference between the speeds of conveying the paper by the first conveying mechanism 230 and the printing and conveying mechanism 510 is not large, and the paper struggling abnormality or the paper stacking abnormality occurs because of the accumulation of errors due to the long-time operation of the printer 010. Therefore, the first speed is still closest to the conveying speed of the printing conveyance mechanism 510 as compared with the second speed or the third speed after adjustment. If the sheet 020 is conveyed at the second speed or the third speed for a long time, it is likely to be counterproductive, causing another sheet conveyance abnormality. For example, after the struggling abnormality occurs, the speed of the first conveying mechanism 230 for conveying the sheets is raised to the second speed to eliminate the struggling abnormality, but the second speed is too fast, and the second conveying speed for a long time for conveying the sheets 020 may cause the stacking abnormality; vice versa, conveying the sheet 020 for a long time at the third speed can eliminate the paper stacking abnormality, but may further cause the paper breaking abnormality. Therefore, after adjusting the speed at which the first feeding mechanism feeds the paper, the control device 700 continues to monitor the signal output by the state detection mechanism 600, and after determining that the paper feeding is recovered to normal according to the signal output by the state detection mechanism, the control device 700 restores the speed at which the first feeding mechanism 230 feeds the first paper to the first speed again, so as to avoid another paper feeding abnormality which is opposite to the first speed.
Further, the paper conveying method according to the embodiment of the present application may further include: in the case where it is determined that there is no paper in the first paper feed path 200 based on the signal output from the first inspection sensor 220, the second conveying mechanism 430 is controlled to convey the second paper in the second paper feed path 400 to the print path 500 at the first speed; judging whether paper conveying abnormality occurs according to a signal output by the state detection mechanism 600; in the case where the occurrence of the paper conveyance abnormality is detected, the speed at which the second paper is conveyed by the second conveyance mechanism 430 is adjusted to exclude the paper conveyance abnormality.
The second sheet is a sheet 020 supplied from second sheet supply mechanism 300 and conveyed in second sheet supply path 400 by second conveyance mechanism 430. In the print job, when the control device 700 detects that there is no paper 020 in the first paper feed path 200 according to the signal output by the first inspection sensor 220, the second conveying mechanism 430 is controlled to convey the second paper to feed the paper to the print path 500 through the second paper feed path 400, so that the printer 010 continues printing to avoid the influence on the print job caused by the exhaustion of the paper 020 supplied by the first paper feed mechanism 100. Meanwhile, the control device 700 still detects the signal output by the state detection mechanism 600 in real time to monitor the paper transportation condition in real time, and when the control device 700 determines that the paper transportation abnormality occurs according to the signal output by the state detection mechanism 600, the paper transportation abnormality is eliminated by adjusting the speed at which the second paper is transported by the second transport mechanism 430. The specific method steps of adjusting the speed of the second conveying mechanism 430 for conveying the second paper to eliminate the paper conveying abnormality may refer to the method of adjusting the conveying speed of the first conveying mechanism 230 to eliminate the paper conveying abnormality in step S300, and will not be described herein again.
Further, the paper conveying method according to the embodiment of the present application may further include: in the case where it is determined from the signal output from the first paper feed sensor 210 that the entrance of the first paper feed path 200 is changed from the no-paper state to the paper state, the first conveyance mechanism 230 is controlled to drive the first paper sheet at the entrance of the first paper feed path 200 to advance and convey the leading end of the first paper sheet to the loading position of the first paper feed path 200, wherein the loading position of the first paper feed path 200 is located between the inspection sensor and the first conveyance roller assembly 234 in the advancing direction of the first paper sheet.
Through this step, after the first paper feed mechanism 100 resumes the paper feed capability, it is possible to reload the paper 020 into the first paper feed path 200, so that it is possible to feed the paper to the print path 500 through the first paper feed path 200 again. Specifically, when it is determined that the entrance of the first paper feed path 200 is changed from the non-paper state to the paper-present state, the control device 700 drives the first paper to advance, and when it is determined that the leading end of the first paper reaches the detection position of the first inspection sensor 220 based on the signal output from the first inspection sensor 220, drives the first paper to retreat by a set distance so that the leading end of the first paper is located at the loading position of the first paper feed path 200, thereby completing accurate loading of the paper 020. Therefore, this step enables the paper to be attached to and replaced by the first paper feed mechanism 100 while the second paper feed path 400 is feeding paper to the print path 500. After the replacement is completed, the leading end of the paper is driven to the loading position of the first paper feed path 200, so that the paper can be fed to the print path 500 through the first paper feed path 200 again after the second paper feed path 400 stops feeding the paper to the print path 500 (for example, the second paper fed by the second paper feed mechanism 300 runs out). Thus, the two paper feeding channels can alternately feed the paper to the printing channel 500, so that the influence on the printing operation caused by the exhaustion of the paper 020 supplied by one paper feeding mechanism can be avoided, and the printing efficiency of the printer 010 can be improved. Meanwhile, under the condition that the paper 020 provided by one paper supply mechanism is not used up, the front end of the paper 020 provided by the other paper supply mechanism is conveyed to the loading position of the corresponding paper supply channel, so that preparation can be made for supplying paper to the printing channel 500, better connection of alternate paper supply between two different paper supply channels is facilitated, and the efficiency is improved. Of course, the second paper feeding path 400 may be provided with a loading position, and the paper in the second paper feeding path 400 may be loaded by the same loading method as the first paper feeding path 200. Of course, in other embodiments, the user may also uniformly reinstall the paper for each paper feeding mechanism and load the paper to the corresponding paper feeding channel after the paper provided by the plurality of paper feeding mechanisms of the printer 010 is used up, so that the user is prevented from installing the paper during the peak period of the printer operation, and the work efficiency of the user is improved.
The above description is only for various embodiments of the present application, but the scope of the present application is not limited thereto, and any person skilled in the art can easily conceive of changes or substitutions within the technical scope of the present application, and all such changes or substitutions are included in the scope of the present application. Therefore, the protection scope of the present application shall be subject to the protection scope of the claims.
Claims (10)
1. A printer comprising a first paper supply path, a first transport mechanism, a printing path, a printing transport mechanism, and a control device, wherein, in an advancing direction of paper during printing, the first paper supply path is located upstream of the printing path, the first transport mechanism is configured to transport the first paper in the first paper supply path to the printing path, the printing transport mechanism is configured to transport the paper in the printing path, a status detection mechanism is provided at an entrance of the printing path, the first transport mechanism, the printing transport mechanism, and the status detection mechanism are electrically connected to the control device, and the control device is configured to:
controlling the first conveying mechanism to convey the first paper in the first paper feeding channel to the printing channel at a first speed;
judging whether paper conveying abnormity occurs according to the signal output by the state detection mechanism;
and adjusting the speed of the first conveying mechanism for conveying the first paper to eliminate the paper conveying abnormity when the paper conveying abnormity is determined to occur.
2. The printer according to claim 1, wherein the paper conveyance abnormality includes a shake abnormality, the state detection mechanism includes a first state sensor that outputs a shake signal in a case where the shake abnormality occurs, the control device is specifically configured to:
and under the condition that the paper breaking abnormality is judged to occur according to the paper breaking signal output by the first state sensor, the speed of the first paper conveyed by the first conveying mechanism is increased from the first speed to the second speed so as to eliminate the paper breaking abnormality.
3. The printer according to claim 2, wherein the status detecting mechanism further comprises a first trigger movably disposed at an entrance of the printing channel, the first trigger being capable of being pushed by the stretched paper to cooperate with the first status sensor when the struggling paper abnormality occurs, so that the first status sensor outputs the struggling paper signal.
4. The printer according to claim 1, wherein the paper conveyance abnormality includes a stacking abnormality, the state detection mechanism includes a second state sensor that outputs a stacking signal in a case where the stacking abnormality occurs, and the control device is specifically configured to:
when it is determined that the stacking abnormality occurs based on the stacking signal output from the second state sensor, the speed at which the first sheet is conveyed by the first conveying mechanism is reduced from the first speed to a third speed to eliminate the stacking abnormality.
5. The printer according to claim 4, wherein the status detection mechanism further comprises a second trigger movably disposed at an entrance of the printing channel, the second trigger being capable of being pushed by the accumulated sheets to cooperate with the second status sensor when the stacking abnormality occurs, so that the second status sensor outputs the stacking signal.
6. A printer according to any one of claims 1 to 5, wherein the control means is further arranged to:
after the speed of the first paper conveyed by the first conveying mechanism is adjusted, whether the paper conveying is normal or not is judged according to the signal output by the state detection mechanism, and the speed of the first paper conveyed by the first conveying mechanism is recovered to the first speed under the condition that the paper conveying is judged to be normal.
7. The printer according to any one of claims 1 to 5, further comprising a second paper feed passage and a second conveying mechanism, the second conveying mechanism being electrically connected to the control device, the second paper feed passage being located upstream of the printing passage in an advancing direction of the paper during printing, the first paper feed passage and the second paper feed passage converging at an entrance of the printing passage, the second conveying mechanism being configured to convey a second paper in the second paper feed passage toward the printing passage, the first paper feed passage being provided with an inspection sensor for detecting whether or not the paper is present in the first paper feed passage, the first conveying mechanism including a first conveying roller assembly provided in the first paper feed passage, the inspection sensor being located downstream of the first conveying roller assembly and being electrically connected to the control device, the control means is further arranged to:
controlling the second conveying mechanism to convey a second paper sheet in the second paper feed path to the printing path at the first speed in a case where it is determined that there is no paper in the first paper feed path based on the signal output from the inspection sensor;
judging whether paper conveying abnormity occurs according to the signal output by the state detection mechanism;
and adjusting the speed of the second conveying mechanism for conveying the second paper to eliminate the paper conveying abnormity when the paper conveying abnormity is determined to occur.
8. The printer of claim 7, wherein a paper feed sensor is further provided at the inlet of the first paper feed path for detecting whether paper is present at the inlet of the first paper feed path, the paper feed sensor being electrically connected to the control device, the control device being further configured to:
and under the condition that the entrance of the first paper feeding channel is determined to be changed from the non-paper state to the paper state according to the signal output by the paper feeding sensor, controlling the first conveying mechanism to drive the first paper at the entrance of the first paper feeding channel to advance and convey the front end of the first paper to the loading position of the first paper feeding channel, wherein the loading position of the first paper feeding channel is positioned between the checking sensor and the first conveying roller assembly along the advancing direction of the first paper.
9. A paper conveying method applied to a printer, the printer including a first paper supply path, a first conveying mechanism, a printing path, and a printing conveying mechanism, wherein, in an advancing direction of paper during printing, the first paper supply path is located upstream of the printing path, and the first conveying mechanism is configured to convey a first paper in the first paper supply path to the printing path, the printing conveying mechanism is configured to convey the paper in the printing path, a state detecting mechanism is provided at an entrance of the printing path, the state detecting mechanism is configured to detect a paper conveying state, the paper conveying method includes:
controlling the first conveying mechanism to convey the first paper in the first paper feeding channel to the printing channel at a first speed;
judging whether paper conveying abnormity occurs according to the signal output by the state detection mechanism;
and adjusting the speed of the first conveying mechanism for conveying the first paper to eliminate the paper conveying abnormity when the paper conveying abnormity is determined to occur.
10. The paper conveying method according to claim 9, wherein the paper conveying abnormality includes an earner abnormality, and in a case where it is determined that the paper conveying abnormality occurs, the speed at which the first conveying mechanism conveys the first paper is adjusted to eliminate the paper conveying abnormality, specifically including:
and under the condition that the struggled paper abnormity is judged to occur, the speed of the first paper conveyed by the first conveying mechanism is increased from the first speed to a second speed so as to eliminate the struggled paper abnormity.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
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| CN201910739213.9A CN112390050A (en) | 2019-08-12 | 2019-08-12 | Printer and paper conveying method |
| PCT/CN2020/108135 WO2021027764A1 (en) | 2019-08-12 | 2020-08-10 | Printer and paper conveying method |
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| CN201910739213.9A CN112390050A (en) | 2019-08-12 | 2019-08-12 | Printer and paper conveying method |
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| CN115534540A (en) * | 2021-06-30 | 2022-12-30 | 珠海趣印科技有限公司 | Paper state change detection method and system |
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