CN1908824B - Media registration systems and methods - Google Patents
Media registration systems and methods Download PDFInfo
- Publication number
- CN1908824B CN1908824B CN2006101100411A CN200610110041A CN1908824B CN 1908824 B CN1908824 B CN 1908824B CN 2006101100411 A CN2006101100411 A CN 2006101100411A CN 200610110041 A CN200610110041 A CN 200610110041A CN 1908824 B CN1908824 B CN 1908824B
- Authority
- CN
- China
- Prior art keywords
- medium
- speed
- voltage level
- driving motor
- driven roller
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
Links
Images
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
- B65H9/00—Registering, e.g. orientating, articles; Devices therefor
- B65H9/002—Registering, e.g. orientating, articles; Devices therefor changing orientation of sheet by only controlling movement of the forwarding means, i.e. without the use of stop or register wall
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
- B65H2404/00—Parts for transporting or guiding the handled material
- B65H2404/10—Rollers
- B65H2404/14—Roller pairs
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
- B65H2513/00—Dynamic entities; Timing aspects
- B65H2513/10—Speed
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
- B65H2515/00—Physical entities not provided for in groups B65H2511/00 or B65H2513/00
- B65H2515/70—Electrical or magnetic properties, e.g. electric power or current
Landscapes
- Delivering By Means Of Belts And Rollers (AREA)
- Registering Or Overturning Sheets (AREA)
- Controlling Sheets Or Webs (AREA)
- Control Of Electric Motors In General (AREA)
- Handling Of Sheets (AREA)
Abstract
Embodiments herein measure current/voltage levels of a drive motor when media is in contact with a drive roller so as to determine the drive force imparted by the drive rollers on the media. Then, embodiments herein can reference the predetermined relationship between roller drive force and media/drive roller velocity ratios to determine a difference between the velocity of the drive roller and the velocity the media based on the drive force. Once this velocity difference is determined, embodiments herein can change the current/voltage levels being applied to the drive motor if the actual velocity of the media is different than the intended velocity of the media so as to correct the velocity of the media. Thus, when referencing the predetermined relationship, embodiments herein produce a velocity ratio correction factor. This velocity ratio correction factor can be applied continuously during any velocity profile of the drive motor, or it can be used to calculate the accumulated error in sheet position and then to apply a correction near the end of the velocity profile.
Description
Technical field
The embodiment here relates generally to medium registration (mediaregistration) in printer and the duplicating machine/alignment system and method.
Background technology
Current electronics registration arrangement uses the medium aligning during narrow driving folder (drive nip) is controlled registration.When having dense medium, high acceleration or high drag, the surface of registration folder (registration nip) deforms.This distortion is expressed as and causes that medium velocity is different from desirable roll surface speed, and this causes the registration mistake.These folder distortion are wrong to be worsened under the situation of narrow driving folder, such as frequent use those in registration arrangement, but also is observed in the system that causes the roller that the use of handling the registration mistake is quite wide.Developing new feedback control system, this feedback control system makes control system can compensate this folder distortion by measuring the actual paper motion.Very conceivable is not increase cost and improve the registration arrangement performance.
Summary of the invention
The method here provides a kind of arrangement of the driving motor current/voltage level of wanting (electric current and/or voltage level) to driving motor, drive motor speed of wanting with foundation and the medium velocity of wanting accordingly that is moved by driven roller.For example, the current/voltage level of the driving motor that the method is here wanted by adjustment, and let drive at medium in the driving clip assembly in the printing apparatus.The current/voltage level of wanting is used to adjust the driving motor wanted and the speed of associated drives roller, with the location or turn to medium in the medium channel of printing/copier.
Yet, because the not same-action between driven roller and the medium, roller to the speed between the medium than may with desired different of the current/voltage level of wanting.In other words, between the speed of the speed of roller and medium, may there be some difference.This velocity contrast XOR " velocity ratio " is caused by the normal phase interaction on the surface of roller and medium.This velocity ratio is different from " slippage " that takes place when the maximum admissible friction factor that surpasses between roller and the medium.After slippage took place, opening relationships may be difficulty or impossible between roller and medium velocity; Yet before slippage takes place (before surpassing maximum admissible friction factor), the embodiment has here set up the relation between driving motor moment (driving motor current/voltage level) and the velocity ratio.
Usually, when more multiple current/voltage is applied to driving motor, driving motor produces more moments, this can increase the interaction force between roller and medium, and when the initial value of 1: 1 (unit) is decreased to pulling force or inertial force driving force between roller and medium is increased in the time of can making velocity ratio successively never obviously pulling force or inertial force exist less than or greater than one the velocity ratio of (for example, 1: 0.95,1: 0.90,1: 098,1: 1.02 etc.).In addition, the change of this velocity ratio generally is consistent in the different sheet types by given clip assembly (or kind or type of driving clip assembly) clamping.Thereby, by only measuring driving motor current/voltage level, the embodiment here can determine the driving force between driven roller and the medium, this can be used in time to determine the velocity ratio at the place, arbitrfary point then, and the speed of corrector roll and corresponding medium velocity in view of the above, this has been avoided having to provide the other hardware medium sensor etc. of the actual variance between measuring roll speed and the medium velocity.
More specifically, the embodiment has here set up the current/voltage level of concrete driving clip assembly (or driving the clip assembly type) and the predetermined relationship between medium/driven roller speed ratio.Should " current/voltage level " comprise current/voltage level that is applied to driving motor and the indication that provides by the moment of driving motor output.Should " medium/driven roller speed ratio " comprise the length velocity relation between the driven roller and medium when medium contacts with driven roller.Because predetermined relationship is based on the result who (class or a kind of) is driven the test of clip assembly, so predetermined relationship is considered to " be associated " with given driving clip assembly.
The current/voltage level of driving motor when the examples measure medium here contacts with driven roller is to determine the driving force by driving motor output.After this, the predetermined relationship between the embodiment reference current/voltage level here and the speed of medium/driven roller is to determine the difference between driven roller speed and the medium velocity based on driving force.In case this speed difference is determined, if the actual speed of medium is different from the medium velocity of wanting, then the embodiment here can change the current/voltage level that begins to be applied to driving motor, with the speed of correcting medium.Therefore, when the reference predetermined relationship, the embodiment here produces velocity ratio correction factor.During the arbitrary speed curve of driving motor, this velocity ratio correction factor is calculated and can be implemented.In addition, when in driving clip assembly, not having medium, measure the needed current/voltage level of this system of driving, can calibrate intrinsic pulling force and inertial force from motor and drive system by concrete rate curve.
The embodiment here can comprise the driving clip assembly, and this driving clip assembly is suitable for move media in printing and/or copier.Driving motor is comprised in and drives in the clip assembly, and driven roller is connected to driving motor.In addition, control system is connected to driving motor.If the actual speed of driving motor is different from the drive motor speed of wanting, then this control system is changed the current/voltage level of wanting.
More specifically, as mentioned above, control system has been set up the predetermined relationship between current/voltage level and the medium/driven roller speed ratio.After this, when contacting with driven roller, can measure in medium the current/voltage level of this driving motor, to determine the driving force on medium.For the difference between the speed of the speed of determining driven roller and medium, the predetermined relationship between reference current/voltage level and medium/driven roller speed ratio.If the actual speed of medium is different from the medium velocity of wanting, then this allows control system to change the current/voltage level that begins to be applied to driving motor, to provide driving the correction of clip assembly.
When the reference predetermined relationship, this control system produces velocity ratio correction factor, and can calculate the velocity ratio correction factor of all rate curves that are used for driving motor.Also have, when not having medium to be present in the driving clip assembly, control system is used to calibration and drives the needed current/voltage level of this system.This control system can periodically repeat this calibration, with the change of friction compensation on the serviceable life of total system.
Before slippage takes place (before surpassing maximum admissible friction factor), the embodiment has here set up the relation between driving motor moment (the current/voltage level of driving motor) and the velocity ratio.When medium contacts with driven roller, can measure the current/voltage level of this driving motor, to determine the driving force on the medium.Predetermined relationship between reference current/voltage level and medium/driven roller velocity ratio is with the speed of definite driven roller and the difference between the medium velocity.If the actual speed of medium is different from the speed of wanting of medium, this allows control system to change the current/voltage level that is applied in driving motor, to provide driving the correction of clip assembly.Therefore, only by measuring the current/voltage level of motor, the embodiment here can determine that roller is being applied to the driving force on the medium, then, calculate the present speed ratio, and the speed and the corresponding medium velocity of corrector roll in view of the above, this has been avoided having to provide the additional hardware medium sensor etc. of the actual deviation between measuring roll speed and the medium velocity.
These and other features are described in the following detailed description, and are perhaps apparent from describe in detail.
Description of drawings
With reference to the accompanying drawings, be discussed in more detail below the different example embodiment of native system and method, in the accompanying drawings:
Fig. 1 illustrates power according to embodiment here to the chart of speed than curve;
Fig. 2 drives schematically illustrating of clip assembly; And
Fig. 3 illustrates the process flow diagram of the many aspects of embodiment here.
Embodiment
The embodiment here uses " electronics " registration controlling schemes, and this scheme is not requiring compensation curb deformation-sensing error under the situation of additional hardware (taking place) before can allowing friction factor above maximum.By obstruction the action of medium acceleration, translation and deskew is produced and cause pressing from both sides the inertia of distortion and the drag that rubs, next this cause the velocity ratio that is different from unit value between medium and driving folder.
The present inventor finds to be applied to the driving moment of motor in registration arrangement proportional with the driving force that folder is applied on the medium.Thereby, the embodiment here is delivered to the electric current and the voltage of servomotor by detection, is provided at the control system (after the folder deformation curve of the driving folder that is used for this system has been described in advance) of the velocity ratio of each folder of accurately predicting during any given curve movement.The embodiment here uses the curtage of the requirement that is applied to servo or stepping motor, to derive the driving force at clip place, calculates the real-time correction of pair roller speed then and is out of shape with compensation curb.Then, the control system adjustment drives the target velocity of folder so that medium is accurately followed the rate curve of wanting at first.Selectively, replace the distortion of real-Time Compensation folder, can follow the tracks of speed and medium position error, and then make correction near registration curve end from the folder distortion of calculating.
Because the not same-action between driven roller and the medium, roller can not be as the current/voltage level of wanting be desired to the speed ratio of medium.In other words, between the speed of the speed of roller and medium, have some differences.This velocity contrast or " velocity ratio " are caused by the normal phase interaction on the surface of roller and medium.This velocity ratio is different from " slippage " that takes place when the maximum that rubs between roller and the medium can allow coefficient surpassing.After slippage takes place, set up that the relation between the speed may be difficulty or impossible between roller and the medium; Yet before slippage takes place (maximum that rubs between above roller and medium can allow coefficient before), the embodiment has here set up the relation between driving motor moment (driving motor current/voltage level) and the velocity ratio.
The medium that Fig. 1 illustrates dissimilar and thickness drives at identical driving clip assembly or same type and produces when being subjected to identical drag in the clip assembly identical or very similar velocity ratio curve.Therefore, Fig. 1 explanation, if load is known, then the variation of velocity ratio is known.For various driving clip assemblies, speed will very closely be mated than curve.During driving the clip assembly design phase or making, can realize this type test.If desirable, this curve can require/allow to adapt to particular design person by other statistics program by average or handle, and perhaps more general is not applied to more width variety not or the driving clip assembly of type.Here, embodiment observes load on the motor (this load is directly related with the driving force that roller is applied on the medium), and to produce the correction to velocity ratio, this correction can be applied to driving motor in real time and the accurate location of medium in printing device is provided.
Usually, when more multiple current/voltage is applied to driving motor, driving motor produces more moments, this moment can increase the interaction force between roller and the medium, and next may cause velocity ratio from desirable 1: 1 (unit) to less than or the variation of the ratio of (for example 1: 0.95,1: 0.90,1: 0.98,1: 1.02 etc.) greater than 1.In addition, in the different sheet types that can be handled by given clip assembly (perhaps driving the kind or the type of clip assembly), and in can being applied to the friction speed curve of given driving clip assembly, the variation of this velocity ratio generally is consistent.Thereby, by only measuring driving motor current/voltage level, the embodiment here can determine velocity ratio, and the corresponding speed of the speed of corrector roll and all types medium, this has been avoided having to extra hardware medium sensor etc. is provided, with the actual variance between measuring roll speed and the medium velocity.
Therefore, the speed of driving folder medium depends on the drag on the medium.The ratio of medium velocity and the theoretical velocity of roller when drag acts on the medium less than one, and since the combination of drag and inertial force and can less than or greater than one.This can have problems in registration arrangement, because this system depends on the prediction medium velocity obtaining the working direction registration, and deskew in many cases.
Depend in the registration motion tangential force by what folder distortion produced at each folder place with missing by a mile.These power can change because of each paper is registered, and depend on multiple factor: initial registration error, registration accelerating curve, obstruction and/or other paper passage components between moving period pulls.In many registration arrangements, medium still is in deskew is handled and is bent upwards.Therefore, the driving force that the paper of the weight of heavy paper and length is had relatively high expectations, this power causes higher folder distortion inaccuracy.Big, the heavy medium that enters deskew or skew in a direction will be observed different folder deformation-sensing errors than the medium of skew or skew in the opposite direction.The embodiment here compensates these errors automatically, and does not require the media size that is registered or any cognition of weight.
As mentioned above, a kind of method that compensates these errors is to use the position of other sensor or scrambler array detection paper, and this sensor or scrambler array are mounted to the driven roller loose pulley and are connected to control system.Yet, the detection hardware that this solution requirement is other.
Fig. 2 illustrates two folder registration devices, and two nip rolls 204 are driven by the DC servomotor 200 of independent control therein.Skew sensor 212 is used to detect the twisted of medium 206, so that it can use the unevenness use of motor/roller 200/204 to be corrected before medium 206 reaches image transmission point 210.Input pickup 212 is used to detect the forward position of medium 206, also has its speed, position and skew.
As mentioned above, it is in direct ratio with folder 204 driving forces that are applied on the medium 206 to be applied to the driving moment of motor 200 in the registration arrangements at two folders.Use this information, detect the curtage that sends servomotor 200 to after being described in advance by the folder deformation curve at the driving folder that is used for this system, control system 220 knows that exactly each presss from both sides 206 velocity ratio during any given curve movement.
Here embodiment provides detection to be applied to the method for the curtage of servomotor separately, using this value to calculate proofreaies and correct the enforcement of each differential roller speed, with the compensation curb distortion, then, the speed of adjusting the driving folder is so that medium accurately is obedient to the original curve of wanting.This system comprises the control system 220 that one or more rollers 204 drive clip assembly and are controlled to the voltage or the electric current of one or more driving motors 200 that has shown in Fig. 2, so that this motor is obedient to the rate curve of regulation.Control system 220 is also used voltage or the electric current that is applied to driving motor 200, is applied to driving force on the medium 206 to derive by driven roller 204, and provides correction factor to the rate curve of regulation based on voltage or current value.
At least one motor 200 and have at least one driving shaft (gear etc.) that drives folder and be used among the embodiment here, although as the skilled person will appreciate, two or more motor 200, driving shaft etc. can be used.Motor 200 can be servomotor, stepping motor etc.Driven roller 204 can be made by elastic body or other similar materials.The position and the skew in forward position that enters the medium 206 of drive system can use input pickup 212 to detect.
The current/voltage level of driving motor 200 when the examples measure medium 206 here contacts with driven roller 204 is to determine the driving force by driving motor 200 outputs.Then, but predetermined relation between control system reference current/voltage level and medium/driven roller velocity ratio is determined the speed of driven roller and the difference between the medium velocity with (based on driving force).In case this speed difference is determined, if actual medium velocity is different from the medium velocity of wanting, then control system 220 can change the current/voltage level (with the speed of correcting medium) that is applied to driving motor 200.
Thereby when the reference predetermined relationship, the embodiment here produces velocity ratio correction factor.This velocity ratio correction factor can be applied to the rate curve of all driving motors 200.For example, rate curve can begin the place in motion and cause big acting force (at inertia when being big), and at medium (when keeping the constant speed of medium) low-force when driving clip assembly partly.In one embodiment, the embodiment here is at high acting force or inertial force and will uses big voltage or electric current automatically to motor now.As implied above, then, this signal is used to calculate the correction factor to desirable rate curve, with the compensation curb distortion inaccuracy.
Different rate curves is useful to the different aspect of medium motion, considers the disclosure and will understand as those skilled in the art.In addition, when existing without any medium, the current/voltage level of driving motor 200 can be corrected.When not having paper to exist, on drive system, carry out calibration, so that the intrinsic driving moment of this system can be reduced.
Correction factor is based on the drag scope of the driven roller of use in this system the predefined measurement to the variation of medium velocity.When having paper to exist, do not proofread and correct this system drive power, and in current operation, use the curtage reading of measuring to promote to derive the extra driving force that during medium transmits, is applied on the medium by driving motor.The folder velocity error that produces because of the folder distortion is corrected on continuous or interrupted basis, and then before medium has just arrived the image transfer station, just can proofread and correct the folder distortion of accumulative total.Replacedly, the error that produces because of the folder distortion of deriving can tracked (except not proofreading and correct on the continuous basis), and then the correction that realizes is near the purpose of the fast curve of roller of registration.
Exemplary controlling schemes shown in the process flow diagram in Fig. 3.More specifically, in item 300, reaching of the new page number of medium is detected.Input pickup detects the existence of medium and any skew of medium, reuses input pickup 212.302 expressions are to the calculating of rate curve, and speed (or position) curve wanted is determined in this calculating according to the adjustment of driven roller.This information finally is supplied to controller in item 306, with control signal (motor coding code signal) supplying electric current/voltage amplifier (312).In item 314, current/voltage is applied to " device " (motor, driving, media drive, roller and last medium).Feedback loop is provided for the desirable signal by item 302 outputs.
The embodiment here provides other feedback loop in item 308 and 310.More specifically, in item 310, by measured according to current/voltage in the control signal of item 306 middle controllers output.Then, this current/voltage is cited on power calibration look-up table or equation, and this power calibration look-up table or equation are as in the folder driving force as shown in the item 322 with this current/voltage-converted.After this, in case the folder driving force is known, then presss from both sides speed correction factor (just based on distortion of the folder shown in Fig. 1 in the above and calibration curve) and in item 308, be cited.Therefore, 308 an output calibration factor, this correction factor is based on the medium/driven roller velocity ratio corresponding to the folder driving force of determining in item 310.This correction factor is supplied to item 302, so that can be adjusted continuously by the rate curve of item 302 outputs, to consider dynamically to change medium/driven roller velocity ratio, this medium/driven roller velocity ratio changes during interacting between medium and the nip rolls.
As shown in Fig. 2 and 3, in item 320, the embodiment sample plot is here set up current/voltage level in the specific driving clip assembly and the predetermined relationship between medium/driven roller speed ratio (referring in the above about the argumentation of Fig. 1).In addition, be used for given motor or motor types, using the actual forces that is associated with given curtage can be obtained by sample plot, to produce the power calibration look-up table shown in item 322.Therefore, input at feedback control loop under 310 the situation, the embodiment here is in the current/voltage level of measuring driving motor when contacting with driven roller at medium, to determine by the driving force of driving motor output (310).After this, the embodiment here can reference current/voltage level and medium/driven roller speed ratio between predetermined relationship, with the difference between the speed of determining driven roller speed and medium based on driving force (308).In case this speed difference is determined, if the actual speed of medium is different from the medium velocity of wanting, then the embodiment here can change the current/voltage level that begins to be applied to driving motor so that in project 302 speed of correcting medium.
Therefore, when the reference predetermined relationship, the embodiment here produces the velocity ratio correction factor that is provided for item 302 from item 308.Because velocity ratio correction factor is identical or very similarly (or average for the All Media type, as above discussed), and based on the power that is applied in, the speed correction factor of selecting from look-up table or equation in item 320 can be applied to all rate curves and the All Media type of driving motor at large.In addition, in item 320, when not having medium to be present in the driving clip assembly, can proofread and correct the current/voltage level of driving motor.The desirable rate curve of definition may work with several approach in the frame 302 of Fig. 3.Can on continuous basis, adopt from the input of function 308 and the speed of proofreading and correct the driving folder.Selectively, can writing speed and final site error as the folder distortion of calculating, but not have to realize correction to the folder rate curve, approaching complete up to the registration curve.Other modification of these two kinds control selections also are possible, yet all utilizations are sent to the signal of driving motor, press from both sides driving force to derive, and are used for the folder distortion or the velocity ratio of each folder according to this derivation.Equally, notice although power calibration and folder correction factor are proofreaied and correct be illustrated in the independent blocks of Fig. 3, these functions can be combined so that directly can be implemented to single conversion of pressing from both sides speed correction factor from motor current or voltage.Therefore, the embodiment here provides a kind of control system, this control system by detection be transferred into servomotor curtage and at the velocity ratio of each folder that calculates to a nicety during any given curve movement (the folder deformation curve that is being used for the driving folder of this system specialized in advance after).The embodiment here uses the curtage of the requirement that is applied to servomotor, to derive the driving force on the folder, calculates the real-time correction of pair roller speed then and is out of shape with compensation curb.Then, this control system adjustment drives the target velocity of folder, so that medium is accurately abideed by the rate curve of initially wanting.
Will be understood that above-mentioned disclosure and other features and function or selection wherein can be combined as many other different systems or application ideally.Similarly, various therein selection, change, modification or improvement unforeseen at present or that never reckon with can be made by those skilled in the art thereupon, and these plans are comprised by appending claims.
Claims (4)
- One kind be used to duplicate with printing equipment in the method for medium registration, comprising:Measure current level or voltage level, this current level or voltage level comprise the current level that is applied to driving motor and one of them of voltage level at least, described driving motor be connected to be suitable for print and one of them of copy device in driven roller in the driving clip assembly of move media;Based on described current level or voltage level, determine the speed of described driven roller and the difference between the described medium velocity; AndIf the actual speed of described medium is different from the speed of the described medium of wanting, then change the described current level or the voltage level that when beginning, are applied to described driving motor.
- One kind be used to duplicate with printing equipment in the method for medium registration, comprising:Set up the ratio of medium velocity and driven roller speed and the predetermined relationship between current level or the voltage level, wherein said curtage level comprises the current level that is applied to driving motor and at least one in the voltage level, this driving motor be connected to be suitable for print and one of them of copy device in driven roller in the driving clip assembly of move media, and wherein said medium velocity and the ratio of driven roller speed are included in described medium when contacting with described driven roller, the length velocity relation between described driven roller and the described medium;When described medium contacts with described driven roller, measure the current level or the voltage level of described driving motor;With reference to described predetermined relationship,, determine the difference between the speed of the speed of described driven roller and described medium based on described current level or voltage level; AndIf the actual speed of described medium is different with the speed of the described medium of wanting, be applied to the described current level or the voltage level of described driving motor when then changing beginning.
- One kind be used to duplicate with printing equipment in the equipment of medium registration, comprising:Drive clip assembly, its be suitable for print and one of them of copy device in move media;Driving motor in described driving clip assembly;Be connected to the driven roller of described driving motor; AndBe connected to the control system of described driving motor,Wherein, described control system is suitable for:Measure current level or voltage level, it comprises the current level that is applied to described driving motor and one of them of voltage level;Determine the difference between the speed of the speed of described driven roller and described medium based on described current level or voltage level; AndIf the actual speed of described medium is different from the speed of the described medium of wanting, be applied to the described current level or the voltage level of described driving motor when then changing beginning.
- One kind be used to duplicate with printing equipment in the equipment of medium registration, comprising:Drive clip assembly, its be suitable for print and one of them of copy device in move media;Driving motor in described driving clip assembly;Be connected to the driven roller of described driving motor; AndBe connected to the control system of described driving motor,Wherein, between the ratio of medium velocity and driven roller speed and current level or voltage level, there is predetermined relationship, wherein, described current level or voltage level comprise one of the current level that is applied to described driving motor and voltage level, and wherein, described medium velocity and the ratio of driven roller speed are included in described medium when contacting with described driven roller, the length velocity relation between described driven roller and the described medium, andWherein, described control system is suitable for:When described medium contacts with described driven roller, measure the current level or the voltage level of described driving motor; AndWith reference to described predetermined relationship, determine the difference between the speed of the speed of described driven roller and described medium based on described current level or voltage level; AndIf the actual speed of described medium is different from the speed of the described medium of wanting, be applied to the described current level or the voltage level of described driving motor when then changing beginning.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US11/194,823 US20070023994A1 (en) | 2005-08-01 | 2005-08-01 | Media registration systems and methods |
| US11/194823 | 2005-08-01 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1908824A CN1908824A (en) | 2007-02-07 |
| CN1908824B true CN1908824B (en) | 2010-12-01 |
Family
ID=37693464
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2006101100411A Expired - Fee Related CN1908824B (en) | 2005-08-01 | 2006-07-31 | Media registration systems and methods |
Country Status (5)
| Country | Link |
|---|---|
| US (1) | US20070023994A1 (en) |
| JP (1) | JP2007039247A (en) |
| CN (1) | CN1908824B (en) |
| BR (1) | BRPI0603029A (en) |
| CA (1) | CA2553357C (en) |
Families Citing this family (20)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US7593684B2 (en) * | 2005-08-30 | 2009-09-22 | Xerox Corporation | Systems and methods for medium registration |
| JP2007070085A (en) * | 2005-09-08 | 2007-03-22 | Toshiba Corp | Paper sheet positioning device |
| US7762733B2 (en) * | 2006-07-06 | 2010-07-27 | Canon Kabushiki Kaisha | Printing apparatus, conveyance apparatus, and feed-conveyance control method |
| US7712737B2 (en) * | 2006-12-06 | 2010-05-11 | Xerox Corporation | Gain-scheduled feedback document handling control system |
| US7712738B2 (en) * | 2006-12-06 | 2010-05-11 | Xerox Corporation | Gain-scheduled feedback document handling control system |
| US7530256B2 (en) * | 2007-04-19 | 2009-05-12 | Xerox Corporation | Calibration of sheet velocity measurement from encoded idler rolls |
| US7914000B2 (en) * | 2007-06-06 | 2011-03-29 | Xerox Corporation | Feedback-based document handling control system |
| US7686298B2 (en) * | 2007-11-05 | 2010-03-30 | Xerox Corporation | Method and system for correcting lateral position error |
| JP5025435B2 (en) * | 2007-11-28 | 2012-09-12 | キヤノン株式会社 | Sheet conveying apparatus, image forming apparatus, and image reading apparatus |
| US20090302145A1 (en) * | 2008-06-10 | 2009-12-10 | Xerox Corporation | Printing web system |
| US8127057B2 (en) * | 2009-08-13 | 2012-02-28 | Advanced Micro Devices, Inc. | Multi-level buffering of transactional data |
| US8083228B2 (en) * | 2009-12-28 | 2011-12-27 | Xerox Corporation | Closed loop lateral and skew control |
| US8762103B2 (en) * | 2010-09-09 | 2014-06-24 | Xerox Corporation | Sheet thickness measurement apparatus |
| JP2012148852A (en) * | 2011-01-18 | 2012-08-09 | Fujitsu Ltd | Sheet transport device, sheet transport control method, and printer |
| JP2013010289A (en) * | 2011-06-30 | 2013-01-17 | Seiko Epson Corp | Method of controlling tape printing apparatus, and tape printing apparatus |
| JP6451457B2 (en) * | 2015-03-31 | 2019-01-16 | ブラザー工業株式会社 | Control system |
| CN108367578B (en) * | 2015-12-08 | 2021-02-12 | 惠普发展公司有限责任合伙企业 | Media alignment calibration |
| US11260681B2 (en) | 2017-02-07 | 2022-03-01 | Hewlett-Packard Development Company, L.P. | Print medium position detection |
| JP6880919B2 (en) * | 2017-03-29 | 2021-06-02 | セイコーエプソン株式会社 | Recording device |
| CN110261806B (en) * | 2019-06-14 | 2021-08-31 | 杭州优迈科技有限公司 | Driver, frequency converter, and calibration method and control method of driver |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5312033A (en) * | 1991-10-11 | 1994-05-17 | Eastman Kodak Company | Web conveyor drive system |
| US5337248A (en) * | 1992-02-25 | 1994-08-09 | Pitney Bowes Inc. | Mailing machine including sheet feeding speed calibrating means |
| CN1403880A (en) * | 2001-08-31 | 2003-03-19 | 日立工机株式会社 | Sheet skew correction apparatus and image forming apparatus |
Family Cites Families (19)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4971304A (en) * | 1986-12-10 | 1990-11-20 | Xerox Corporation | Apparatus and method for combined deskewing and side registering |
| US5094442A (en) * | 1990-07-30 | 1992-03-10 | Xerox Corporation | Translating electronic registration system |
| US5240241A (en) * | 1990-10-31 | 1993-08-31 | Canon Kabushiki Kaisha | Sheet feeding apparatus |
| US5169140A (en) * | 1991-11-25 | 1992-12-08 | Xerox Corporation | Method and apparatus for deskewing and side registering a sheet |
| US5331576A (en) * | 1992-02-25 | 1994-07-19 | Pitney Bowes Inc. | Mailing machine including skewed sheet detection means |
| US5219159A (en) * | 1992-06-01 | 1993-06-15 | Xerox Corporation | Translating nip registration device |
| US5278624A (en) * | 1992-07-07 | 1994-01-11 | Xerox Corporation | Differential drive for sheet registration drive rolls with skew detection |
| US5484141A (en) * | 1992-10-29 | 1996-01-16 | Nisca Corporation | Automatic document feeder with position compensating device |
| JP3258203B2 (en) * | 1994-07-26 | 2002-02-18 | 三菱電機株式会社 | Sheet transport device |
| US5697608A (en) * | 1996-06-26 | 1997-12-16 | Xerox Corporation | Agile lateral and shew sheet registration apparatus and method |
| US5697609A (en) * | 1996-06-26 | 1997-12-16 | Xerox Corporation | Lateral sheet pre-registration device |
| US5678159A (en) * | 1996-06-26 | 1997-10-14 | Xerox Corporation | Sheet registration and deskewing device |
| US5794176A (en) * | 1996-09-24 | 1998-08-11 | Xerox Corporation | Adaptive electronic registration system |
| US6137989A (en) * | 1998-04-15 | 2000-10-24 | Xerox Corporation | Sensor array and method to correct top edge misregistration |
| US6168153B1 (en) * | 1999-05-17 | 2001-01-02 | Xerox Corporation | Printer sheet deskewing system with automatically variable numbers of upstream feeding NIP engagements for different sheet sizes |
| WO2002044183A2 (en) * | 2000-12-01 | 2002-06-06 | Guilford Pharmaceuticals Inc. | Benzoazepine and benzodiazepine derivatives and their use as parp inhibitors |
| US6533268B2 (en) * | 2001-07-27 | 2003-03-18 | Xerox Corporation | Printer sheet lateral registration and deskewing system |
| US7183730B2 (en) * | 2003-05-15 | 2007-02-27 | Hewlett-Packard Development Company, L.P. | Method and apparatus for receiving and manipulating sheet material |
| US7088948B2 (en) * | 2003-07-09 | 2006-08-08 | Eastman Kodak Company | Adjustment of skew registration of media to a developed image in a printing machine |
-
2005
- 2005-08-01 US US11/194,823 patent/US20070023994A1/en not_active Abandoned
-
2006
- 2006-07-25 CA CA002553357A patent/CA2553357C/en not_active Expired - Fee Related
- 2006-07-27 JP JP2006204245A patent/JP2007039247A/en not_active Withdrawn
- 2006-07-31 CN CN2006101100411A patent/CN1908824B/en not_active Expired - Fee Related
- 2006-07-31 BR BRPI0603029-7A patent/BRPI0603029A/en not_active IP Right Cessation
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5312033A (en) * | 1991-10-11 | 1994-05-17 | Eastman Kodak Company | Web conveyor drive system |
| US5337248A (en) * | 1992-02-25 | 1994-08-09 | Pitney Bowes Inc. | Mailing machine including sheet feeding speed calibrating means |
| CN1403880A (en) * | 2001-08-31 | 2003-03-19 | 日立工机株式会社 | Sheet skew correction apparatus and image forming apparatus |
Also Published As
| Publication number | Publication date |
|---|---|
| JP2007039247A (en) | 2007-02-15 |
| CN1908824A (en) | 2007-02-07 |
| CA2553357C (en) | 2009-10-13 |
| CA2553357A1 (en) | 2007-02-01 |
| US20070023994A1 (en) | 2007-02-01 |
| BRPI0603029A (en) | 2007-03-13 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN1908824B (en) | Media registration systems and methods | |
| US7806404B2 (en) | Skew adjustment of print sheets by loading force adjustment of idler wheel | |
| EP1926204A2 (en) | Control apparatus using speed estimation for dc motor in image forming apparatus and method thereof | |
| EP3146393B1 (en) | Pressing apparatus, image forming apparatus, method for controlling pressing apparatus, and computer-readable storage medium | |
| EP2703160A1 (en) | Strain controlled infeed | |
| US20130108334A1 (en) | Belt Tracking Using Steering Angle Feed-Forward Control | |
| US8937634B2 (en) | Printing apparatus | |
| US8376501B2 (en) | Reflex printing | |
| US8720333B2 (en) | Buffering and tension control system and method | |
| KR101445064B1 (en) | Printing apparatus and method being available to measure and compensate synchronization error | |
| US20080107435A1 (en) | Arrangement for Driving a Load Element | |
| EP1510485B1 (en) | Paper registration method and system | |
| EP2289830B1 (en) | Edge Sensor Gain Calibration for Printmaking Devices | |
| US6768427B1 (en) | Encoder initialization methods and related systems | |
| US5949177A (en) | Linear piezoelectric motor employing internal feedback | |
| US8033544B2 (en) | Edge sensor calibration for printmaking devices | |
| US8762103B2 (en) | Sheet thickness measurement apparatus | |
| US20070019009A1 (en) | Apparatus and method of controlling a feeding speed and a printing speed | |
| US20110175280A1 (en) | Sheet Registration Using Input-State Linearization in a Media Handling Assembly | |
| CN113386475A (en) | Paper feeding precision calibration method and calibration system | |
| KR20070015890A (en) | Media registration systems and methods | |
| JPH0852864A (en) | Method and device for controlling estimation | |
| US6370002B1 (en) | Electromagnetic operation of the processing of objects | |
| JPS63125855A (en) | Pressure control type friction transmission device | |
| CN101879997A (en) | Method for correcting preset gap width between two folding rollers |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20101201 Termination date: 20120731 |