CN103676541B - Image processing system - Google Patents

Abstract

A kind of image processing system, before the paper using after calibration correction arrives image transfer position, it is possible to be reliably completed bias correction, even if simultaneously in the case of the basic weight difference of paper using, it is also possible to reliably clamp the paper using after bias correction in transfer roll.This image processing system possesses: calibration correction portion (40), the leading section of the paper using of paper supply to 2 time transfer section (42) and aligning roller is abutted (32) and corrects the slope of this paper using；Test section (11), detection corrects the amount of bias of the paper using of the slope of the reference position, end for paper using；And control portion (50), calculating this move value to the actual amount of movement of the aligning roller pair of the amount of bias for correcting paper using, this image processing system has: moving part (41), (32) are clamped by the paper using after calibration correction with aligning roller, based on move value to moving aligning roller with the orthogonal direction, transmission direction of this paper using to (32), control portion (50) complete the aligning roller movement to (32) in the upper control limit value setting move value.

Description

Image processing system

Technical field

The present invention relates to be applied to monochromatic use or colored printer, photocopier, compounding machine etc. are suitable for Image processing system.

Background technology

In recent years image processing system possesses: moving part, has position deviation test section and aligning roller pair. Position deviation test section in the position deviation of the detection paper using immediately front of image transfer position, moving part based on Paper using to clamping and is made this paper using to transmitting the side that direction is orthogonal with it with aligning roller by the detection limit of this paper using To moving thus correction position deviation (bias correction) (JP 2007-022680 publication).

But, according to the image processing system possessing bias correction function seen in patent documentation 1, deposit In following problem.

I. make aligning roller to paper using is transmitted orthogonal direction, direction move time, moving part has gear The gap etc. of moving direction deliberately it is arranged at as gap (Backlash).Accordingly, because logical paper guiding etc. Transmitting the frictional force on road and paper using and drive load, the command value of the amount of movement of aligning roller pair is (mobile Command value) and its actual measured value between occur error.Now, if by the move value of aligning roller pair It is set to big, then there is traveling time elongated, before paper using arrives image transfer position, do not finish biasing school Positive problem.

Ii. additionally, when bias correction, require identical shifting in thin paper or ground paper (basic weight of paper using) etc. In the case of momentum, the traveling time of the reality of side's aligning roller pair of ground paper is elongated.Its result, in thickness In the case of paper, there is leading section being turned in image transfer position of the ground paper before completing with bias correction The state of print roller snap-in (nip), the feelings that the situation that ground paper moves to the direction orthogonal with transmission direction produces Condition.This is relevant to the occurrence cause blocked.

Iii. and then, in the image formation system possessing the image processing system with bias correction function, According to the requirement of high speed, if accelerating system speed, then the time of paper using arrival image transfer position shortens. Accordingly, there are the state by the transfer roll snap-in of image transfer position of the leading section with paper using, paper using to Transmit the danger that the problem moved in orthogonal direction, direction occurs.

Summary of the invention

Therefore, the present invention is to solve the invention of above-mentioned problem, its object is to, it is provided that a kind of image shape Become device, before this image processing system paper using after calibration correction arrives image transfer position, it is possible to can Bias correction is completed, even if simultaneously in the case of the basic weight difference of paper using, it is also possible at transfer roll by ground In reliably clamp the paper using after bias correction.

In order to solve above-mentioned problem, the image processing system described in technical scheme 1 possesses: image forming part, Image is formed in image carrier；Transfer section, is transferred to use by the described image formed in described image carrier Paper；Calibration correction portion, has aligning roller pair, by leading section and the institute of the paper using of paper supply to described transfer section State aligning roller and abutting is corrected the slope of this paper using；Test section, detection is corrected by the institute of described paper using State the amount of bias of the described paper using of slope；Control portion, calculates the shifting being used for correcting the amount of bias of described paper using Dynamic command value；And moving part, by the described paper using after calibration correction with aligning roller to clamping, based on institute State move value and move described aligning roller pair, described control to the direction orthogonal with the transmission direction of this paper using Portion processed controls described moving part, so that mobile institute in the upper control limit value that described move value is set State aligning roller pair.

According to the image processing system described in technical scheme 1, the paper using after calibration correction arrives image and turns Before print position, it is possible to make bias correction be reliably completed all the time.

Image processing system described in technical scheme 2 is, in technical scheme 1, and described upper control limit value Be to from described aligning roller to starting the shifting to this aligning roller moment to terminating movement of moment of movement Mobile restriction time that the dynamic time sets and to from described aligning roller to starting the position of movement to this school Quasi-roller to terminate movement position till mobile allowed band in mobile maximum setting the mobile upper limit Value at least any one.

Image processing system described in technical scheme 3 is, in technical scheme 1, described control portion is meter Calculate the parts of the move value of the described aligning roller pair of the basic weight corresponding to described paper using.

Image processing system described in technical scheme 4 is, in technical scheme 3, described control portion possesses: Storage part, stores the shifting of described aligning roller pair for constructing the basic weight that would correspond to multiple described paper using The correction coefficient of the linear function figure that momentum is associated with the move value of this aligning roller pair and intercept Data.

Image processing system described in technical scheme 5 is, in technical scheme 4, described control portion is meter Calculate and described paper using is transmitted the institute that the frictional force produced between transmission road and this paper using of transfer section is corresponding State move value.

Image processing system described in technical scheme 6 is, in technical scheme 5, described control portion is in institute In the case of stating the frictional force change greatly of the paper using produced between transmission road and paper using, by described move value It is set to big.

According to the image processing system involved by technical scheme 1, by the paper using after calibration correction with aligning roller To clamping, orthogonal to the transmission direction with this paper using based on the move value for actual amount of movement When aligning roller pair is moved in direction, control portion controls moving part, so that in the control that move value is set The movement of aligning roller pair is completed in higher limit.

According to this structure, before the paper using after calibration correction arrives image transfer position, it is possible to make biasing school Just it is reliably completed.Thus, even if in the case of the basic weight difference of paper using, it is also possible to will complete partially Put the paper using after correction reliably to clamp in transfer roll.Thus, it is possible to avoid in bias correction way The situation of transferred image in paper using, makes obstruction not occur, and can be formed about not by the basic weight of paper using simultaneously The image of high-quality.

According to the image processing system involved by technical scheme 2, it is possible to control moving part, so that moving The shifting of aligning roller pair is completed at least any one the upper control limit value of restriction time and mobile higher limit Dynamic.Contribute to the high speed with the image formation system of bias correction function.

According to the image processing system involved by technical scheme 3～6, it is possible to control moving part, so that reference Would correspond to the actual amount of movement of the aligning roller pair of the basic weight of paper using and its move value is associated Mobile table, completes the movement of aligning roller pair in move value in the upper control limit value set.Contribute to There is the high speed of the image formation system of bias correction function.

Accompanying drawing explanation

Fig. 1 is the structure example of the color copy machine 100 being denoted as embodiment involved in the present invention Sectional view.

Fig. 2 is the front elevation of the structure example representing moving part 41.

The upper surface figure of the detection example of paper using P when Fig. 3 is to represent bias correction.

Fig. 4 is relation example (its representing move value Y in control portion 50 with actual amount of movement Δ X 1) curve chart.

Fig. 5 is the actual measured value relation example with its move value Y of the amount of movement Δ X representing reality Curve chart.

Fig. 6 is the module map of the structure example of the control system representing color copy machine 100.

Fig. 7 is the explanatory diagram of the display example representing the UI picture in operation display part 48.

Fig. 8 is the table of the storage example representing the mobile table in ROM51.

Fig. 9 is relation example (its representing move value Y in control portion 50 with actual amount of movement Δ X 2) curve chart.

Figure 10 is the acting characteristic example representing the motor 37 in the case of having exceeded mobile higher limit Curve chart.

The flow chart of control example when Figure 11 is the bias correction representing paper using P.

Detailed description of the invention

Hereinafter, with reference to the accompanying drawings of the image processing system as embodiments of the present invention structure example and It controls example.The record of this column is not limited to the scope of the technology described in claims or term Implication etc..

Color copy machine 100 shown in Fig. 1 constitutes an example of image processing system.Color copy machine 100 has The function of the biasing of standby correction paper using P, the paper using of the regulation after bias correction (calibration shake correction) P is formed coloured image.Image processing system involved in the present invention is not limited to color copy machine 100, can It is applied to monochromatic using or the printer of colour, their compounding machine.

Color copy machine 100 has bias correction pattern.Here, bias correction pattern refers to, based on work For the end of this paper using P of reference position, the end Ps to the paper using P amount of bias by the difference of position, Before abutting against image transfer, by paper using P with aligning roller to sandwiching, to the transmission direction with this paper using P The action (with reference to Fig. 3) that width x orthogonal for y moves.

Color copy machine 100 has sheet feed section 20,40,2 times, calibration correction portion transfer section 42, fixing section 44, control portion 50, the image forming part 80 of electrofax mode, image reading unit 90 and the most former Original text sheet feed section.About the structure of auto document sheet feed section, omit the description for convenience.

Image reading unit 90 is by exposing to pass the most one by one from auto document sheet feed section by light from light source Defeated original copy etc., is reflected light with CCD(Charge Coupled Device, charge-coupled image sensor) 94 receive and obtain the view data of original copy.For red (R) color obtained by image reading unit 90, green (G) view data that color, indigo plant (B) color (RGB) are, is carried out by not shown image processing part Simulation process, analog/digital (hereinafter referred to as A/D) conversion process and image Compression etc..

View data Din of RGB system is input to control portion 50 from image processing part etc..Control portion 50 View data Din complexion changed is changed to view data Dy of YMCK system, Dm, Dc, Dk.Image shape One-tenth portion 80 forms monochromatic or colored image in image forming position in paper using P.Such as, based on color Huang (Y) color, magenta (M) color, green grass or young crops (C) color and the picture number of black (BK) color after conversion According to forming colored toner image.

Image forming part 80 possesses image formation unit 10Y, 10M, 10C, 10K.Image forms list Unit 10Y, 10M, 10C, 10K each share the picture of Y, M, C, BK color and form output function, Paper using P of the size of regulation is formed image.In this embodiment, in respectively the most common function title, such as The most additional Y, M representing the color formed after label 10, C, K and record.

The most charged photosensitive by electro-mechanical part 2Y, 2M, 2C, 2K corresponding to each imaging color In body drum 1Y, 1M, 1C, 1K, by using the light write section of polygonal mirror etc. based on view data 3Y, 3M, 3C, 3K and form electrostatic latent image.Electrostatic latent image is by the development corresponding to each imaging color Device 4Y, 4M, 4C, 4K and develop.By carry out such charged, expose, develop, correspond to Photoconductor drum 1Y, 1M, 1C, 1K of Y, M, C, BK color make 1 transfer roll 7Y, 7M, 7C, 7K action, the color toner picture formed on photoconductor drum 1Y, 1M, 1C, 1K is transferred (1 transfer) is to intermediate transfer belt 8.Color toner picture overlaps on intermediate transfer belt 8.

2 times the color toner picture of coincidence is transferred to paper using P by transfer section 42.By sheet feed section 20, will Paper using P is transmitted to 2 transfer sections 42 from paper supply tray 20A, 20B, 20C etc..In each paper supply torr Paper using P of the size of regulation is housed in dish 20A, 20B, 20C.At paper supply tray 20A, 20B, 20C On be provided with and take out the pick-up roller 22 of paper using P from each paper supply tray and prevent the use each paper supply tray The separate roller 24 of the double transmission of paper P.In this embodiment, in color copy machine 100, except sheet feed section Outside 20, it is also possible to connect the big paper feed (PFU) that paper using P is provided.

It is provided with school on the transmission road of paper using P between above-mentioned 2 transfer sections 42 and delivery roll 28 Quasi-correction unit 40.32, ring roll 36 and moving part 41 etc. are made up of by calibration correction portion 40 aligning roller. Aligning roller has 32 by moving part 41 shown in Fig. 2, when sandwiching paper using P can to with The structure that the direction x orthogonal for transmission direction y of paper P moves.At the positive upstream side of 2 transfer sections 42, I.e. aligning roller to 32 downstream configure the test section 11 of bias detection of paper using P.Test section 11 is examined Survey from the reference position, end set together with the size Selection of paper supply to paper using P of image forming part 80 Ps is amount of bias by position to the end of paper using P.

Double side print mode is possessed in color copy machine 100.Color copy machine 100 has paper using reversion Unit 60(ALU).Paper using inverting units 60 is configured at the top of paper supply tray 20A, in printed on both sides During pattern, the positive and negative of paper using P after forming direct picture automatically inverts.

Above-mentioned sheet feed section 20 from by operation display part 48(with reference to Fig. 6) each paper supply tray of selecting passes through Pick-up roller 22 grade takes out paper using P, and paper using P after taking out is transmitted to school via delivery roll 26,28 etc. Quasi-roller is to 32.Transmit to aligning roller to 32 paper using P abutted to aligning roller 32 by ring roll 36 Paper using front end and correct crooked (slope) (calibration correction function).

If calibration correction terminates, then paper using P after calibration correction is pressed from both sides 32 by moving part 41 with aligning roller Hold, move described aligning roller pair based on move value to the direction orthogonal with the transmission direction of paper using P, The biasing of correction paper using P.Then, by paper using P regulation timing transmission to 2 transfer sections 42.Example As, using y shown in Fig. 2 as the transmission direction of paper using P, using x as transmitting the side that direction is orthogonal with it When (width of paper using P), by moving part 41(shake portion), aligning roller to 32 to with The direction x orthogonal for transmission direction y of paper P moves, in order to remove the amount of bias of paper using P.2 transfers Portion 42 by intermediate transfer belt 8 carrying coloured image be transferred to bias correction after paper using P.Now, Color toner picture is transferred to paper using P by intermediate transfer belt 8 and the snap-in of 2 transfer sections 42.

Fixing section 44 is fixed in paper using P of regulation the toner image of transfer.Fixing section 44 has not to be schemed The backer roll shown or heating roller, in the toner image being transferred to paper using P, via backer roll and heating Roller heats and hot fusing toner picture.Thereby, it is possible to coloured image based on view data Din is formed Paper using P to regulation.

It addition, below the left side of each above-mentioned photoconductor drum 1Y, 1M, 1C, 1K, corresponding to Y, Photoconductor drum 1Y, 1M, 1C, 1K of M, C, K color and be provided with cleaning section 6Y, 6M, 6C, 6K.Cleaning section 6Y, 6M, 6C, 6K remove (cleaning) write by last time and at photoconductor drum The toner of residual in 1Y, 1M, 1C, 1K.Cleaning it is provided above in the left side of intermediate transfer belt 8 Portion 6A, cleans the toner of remaining on the intermediate transfer belt 8 after 2 transfers.

In the case of being provided with double side print mode, paper using P after surface image will be defined from fixing Portion 44 transmits to paper using inverting units 60.In paper using inverting units 60, paper using P positive and negative automatically Reversion.By the paper using P paper supply again after reversion to image forming part 80.It addition, in the drawings, from sheet feed section 20 or big paper feeds constitute the one side path I of paper using P, paper using inverting units to the road of transmitting of ring roll 36 The transmission road of 60 constitutes the two-sided path II of paper using P.Thus, color copy machine 100 is constituted.

Here, structure example and the action example thereof of moving part 41 is described with reference to Fig. 2.Moving part shown in Fig. 2 41 have the little gear of tooth bar ＆ 33 (rack and pinion) engaged with aligning roller to 32.The little tooth of tooth bar ＆ Wheel 33 is the one of gear, has tooth-strip part 34 and the structure that flat rod is implemented Gear Processing Become the pinion-gearing 35 of small-bore circular gear, revolving force is transformed to the motion of straight line.

Tooth-strip part 34 arranges bearing portion 301,302 in the position of regulation.In the aligning roller rotary shaft to 32 The one end in portion 303, this bearing portion 301,302 rotatably engages with escapement 304,305.Little Gear drive 35 is engaged to tooth-strip part 34, and electric-motor drive device 38 is engaged to little gear and passes Dynamic device 35.Motor 37 is installed in electric-motor drive device 38.

According to this moving part 41, drive motor 37, add revolving force via electric-motor drive device 38 To pinion-gearing 35, tooth-strip part 34 to the end setting tooth trace moves to horizontal direction.Now, Escapement 304 grade of 32 is abutted by tooth-strip part 34 and aligning roller, by this rotary shaft portion 303 to with The width of the direction x(paper using orthogonal for transmission direction y of paper P) mobile.

Thus, moving part 41 with aligning roller to 32 clampings by the leading section of paper using P with aligning roller to 32 Snap-in position abuts and corrects paper using P after (rectification) slope, based on to being calculated by control portion 50 The move value of actual amount of movement Δ X can be to the direction x orthogonal with the transmission direction y of this paper using P Mobile.

Further, since the aligning rollers such as the gear backlash amount of movement change to 32 of the tooth-strip part 34 when moving. Here gear backlash is the phases such as the tooth-strip part 34 used in moving part 41 and pinion-gearing 35 In the element embedded mutually and move, the gap deliberately arranged to the direction of motion.By this gap, tooth Bar portion 34 or pinion-gearing 35 etc. are free to mobile.CW and CCW table in figure Show the direction of rotation of motor 37, CW(clock wise) it is to be rotated clockwise, CCW(counter Clock wise) it is counterclockwise to rotate.

Additionally, HP is the aligning roller home position to 32, represent the middle body of tooth-strip part 34."+ Side " and "-side " be in the direction x orthogonal with the transmission direction y of this paper using P, by aligning roller pair 32 directions (with reference to Fig. 3) moving paper using P.Such as, these become by paper using P to+side shifting or By paper using P to-side shifting time index.According to above-mentioned moving part 41, paper using P is delivered to 2 times After transfer section 42, by aligning roller to 32 clampings releasing paper using P.Aligning roller recovers to substantially 32 Position HP.Paper using P is transmitted to fixing section 44 by 2 transfer sections 42.

Here, the detection example of paper using P during bias correction is described with reference to Fig. 3.Inclined according to shown in Fig. 3 Put the detection example of paper using P of timing, if paper size W is determined, then the benchmark position, end of paper using P Put Ps to be determined.This example is that paper using P is from reference position, end Ps bias amount Δ X(=the most to the right Actual amount of movement) situation.

Test section 11 detects the amount of bias Δ X of paper using P.A chain-dotted line in figure is to represent that image forms position The line (hereinafter referred to as picture centre Gc) put.In this embodiment, will be formed using picture centre Gc as benchmark Image be transferred to paper using P.Dotted line in figure is line (the hereinafter referred to as paper using representing paper using center Center Pc).

X0 in figure is end reference range, is to the length of reference position, end Ps from picture centre Gc. X1 in figure is that distance (detected value) is passed through in end, is logical from the end of picture centre Gc to paper using P Cross the length of position.Amount of bias Δ X is by calculating end reference range x0 and end by distance x1 Difference and obtain.Actually the pixel count constituting the line sensor of test section 11 is transformed to the letter of distance Breath.Amount of bias Δ X, when the bias correction of paper using P, becomes actual amount of movement Δ X.Originally, paper using P biases the most to the right, in reference position, end Ps and its end situation by position consistency of paper using P Under, in the drawings, become paper using P shown in dotted line '.Thus, paper using P biased to the right is in biasing school In figure after just, become paper using P of the position shown in dotted line '.

In this embodiment, aligning roller sets "+side " and "-side " to 32 on the basis of home position HP. + or-represent the moving direction to 32 of the aligning roller of biasing for paper using P.At aligning roller to 32 In main scanning direction (rotary shaft direction), this aligning roller to 32 both sides arrange with the shifting of dotted line cincture Dynamic scope.Here, the direction x(that main scanning direction is also orthogonal with the transmission direction y of paper using P is also The aligning roller moving direction to 32).

From this aligning roller to 32 terminal part to moving range terminal part (Rmax=moves maximum: The terminal of tooth-strip part 34) scope be mobile allowed band (hereinafter also referred to mobile allow width R). Mobile maximum Rmax is the mobile maximum allowing width R.Mobile permission width R is at aligning roller pair The both sides of 32 are arranged, and when center will be driven consistent with picture centre Gc, respective amount of movement is Identical amount of movement.In this embodiment, add surplus to mobile maximum Rmax, will be as upper control limit value Mobile higher limit α max to move value Y set.

It follows that the calculated example of move value Y in control portion 50 is described with reference to Fig. 4.In this example In, control portion 50 calculates move value Y according to actual amount of movement Δ X.Curve chart shown in Fig. 4 In, the longitudinal axis is move value Y, is exporting the mobile control signal to moving part 41 from control portion 50 S4 is reflected.Transverse axis is actual amount of movement Δ X, is output to control portion 50 from test section 11.Real The amount of movement Δ X on border is contained in the bias detection signal S11 obtained by test section 11.Move The slope of value Y is 1(θ=45 °).

Here, move value is being set to Y, actual amount of movement is set to Δ X, correction coefficient is set For a, when intercept is set to b, move value Y is linear function form, i.e. by (1) formula

Y=a Δ X+b(is rotated clockwise: during CW) (1)

It is provided.Wherein, actual amount of movement Δ X(amount of bias) it is end reference range x0 and end By the difference of distance x1.Correction coefficient a(slope) by paper kind or logical paper path (one side path or Two-sided path) etc. and determine, intercept b is determined by load change.

Move value Y in being rotated clockwise and counterclockwise rotate of motor 37 not With.Move value Y when counterclockwise rotating (CCW) passes through gear backlash, correction coefficient is set For a ', when intercept is set to b ', by (2) formula, i.e.

Y=a ' Δ X+b ' (2)

It is provided.The situation that control portion 50 biases from reference position, end Ps to the right corresponding to paper using P Or the situation that paper using P biases to the left from reference position, end Ps, based on above-mentioned (1) or (2) Formula controls moving part 41.

Here, actual measured value and its move value Y of the amount of movement Δ X of reality is described with reference to Fig. 5 Relation example.In this embodiment, system is corrected according to basic weight or one side path, the two-sided path etc. of paper using P Number a(slope) different.In Fig. 5, the longitudinal axis is the actual measured value of actual amount of movement Δ X, and transverse axis is This move value Y.Solid line 200 represents move value Y=actual measured value (slope 1: θ=45 °) The mobile control characteristic (ideal value) of situation.

Solid line 300 is the mobile control characteristic (actual value) of the situation of common paper.Solid line 400 is ground paper The mobile control characteristic (actual value) of situation.In the case of common paper, to move value Y=4mm, Actual measured value=3mm, produces the deviation of 1mm as this difference.Think by due to paper kind or logical paper The tooth-strip parts such as path 34, i.e. aligning roller produce this difference to the traveling time difference of 32.

Downward white arrow in figure represents the direction that actual amount of movement Δ X reduces.Such as, at ground paper In the case of, to move value Y=4mm, become actual measured value=below 3mm, poor as this Divide the deviation producing more than 1mm.

Mobile control characteristic (reason with the situation of such move value Y=actual measured value (slope 1) Think value) to compare, in reality, move value Y is different from actual measured value.By the basic weight of paper using P, Or one side path, two-sided path etc., understand that the situation of ground paper produces bigger compared with the situation of common paper Deviation.Therefore, the present inventor's basic weight etc. by paper using P, import shifting when calculating move value Y Dynamic (shake) table, so that deviation does not produces between move value Y and actual measured value.

It follows that the structure example of the control system of color copy machine 100 is described with reference to Fig. 6～Fig. 8.Fig. 6 The control system of shown color copy machine 100 possess test section 11, sheet feed section 20, transport part 30, 40,2 times, calibration correction portion transfer section 42, fixing section 44, operation display part 48, control portion 50, with And image forming part 80.

Control portion 50 such as has: read private memory (read only memory: hereinafter referred to as ROM51), Storage control program etc.；General-purpose storage (random access memory: hereinafter referred to as RAM52), is used for counting According to temporary transient storage etc.；And central processor (CPU: hereinafter referred to as CPU53) etc.. CPU53 from ROM51 reading control program and is expanded to RAM52 along with power on, starts and controls system System.CPU53 controls the action in each portion of color copy machine 100.

ROM51 constitutes an example of storage part, except controlling the external memory of program by correspondence in ROM51 In multiple kinds paper using P basic weight aligning roller to 32 actual amount of movement Δ X and aligning roller to 32 The mobile table (with reference to Fig. 8) that is associated of move value Y.Such as, move table be with for constructing one The data that the correction coefficient of secondary functional arrangement and intercept are correlated with.If possessing mobile table in ROM51, then Be able to carry out the basic weight corresponding to paper using P, limit aligning roller to 32 amount of movement or the control of traveling time.

Operation display part 48 is connected to control portion 50.Such as when image is formed, operation display part 48 Select image forming conditions or from storage regulation the paper supply tray 20A of paper using P of paper size, 20B, 20C etc. select operate during a paper supply tray.The information set in operation display part 48 becomes Operate data D48 and export to control portion 50.Operation display part 48 is by display panels, touch surface Plate, numeral keys etc. is constituted.

UI(user interface as shown in Figure 7 is shown in operation display part 48) picture.Draw at UI The setting item of paper size or basic weight etc. is shown in face.The setting item of paper size or basic weight etc. It is chosen by icon key K1 or K2 etc..If the icon key K2 of the basic weight of paper using P is pressed, then determine Determine mobile table shown in Fig. 8.In this embodiment, prepare to be used for collecting and paper using P that would correspond to 9 kinds The aligning roller of basic weight to 32 actual amount of movement Δ X and this move value Y be associated (for structure Build linear function figure) correction coefficient a, a ' and intercept b, the mobile table of data relevant for b '.

In mobile table shown in Fig. 8, horizontal project hurdle describes the basic weight ［ g/m of paper using P², vertical To project hurdle in describe pallet (one side) as logical paper path and ADU(is two-sided).About with The basic weight of paper P, becomes weight (thick) paper using from light (thin) paper using in order from left side, description " 62～ 74 ", " 75～80 ", " 81～91 ", " 92～105 ", " 106～135 ", " 136～176 ", " 177～216 ", " 217～256 " and " 257～300 ".Basic weight is the biggest, and the frictional force of paper using P becomes the biggest.

About pallet (one side), corresponding to basic weight (thin) → (thick) of paper using P, with (1), (2), (3), (4), (5), (6), (7), (8), 9 patterns of (9) describe the reference value constituting mobile table. Two-sided about ADU(), corresponding to basic weight (thin) → (thick) of paper using P, with (1) ', (2) ', (3) ', (4) ', (5) ', (6) ', (7) ', (8) ', 9 patterns of (9) ' describe to constitute and move The reference value of dynamic table.Reference value (9), (9) ' represent in the control of move value Y in the move table Limit value.

In above-mentioned reference value (1)～(9), about move value Y=a Δ X+b, describe electricity Correction coefficient a when motivation 37 rotates in the clockwise direction, the value of intercept b, or square counterclockwise about it Y=a ' Δ X+b ' in time rotating, describes the value of correction coefficient a ', intercept b '.About reference value (1) '～ (9) ', describe the motor 37 correction coefficient a when rotating in the clockwise direction, the value of intercept b or The value of correction coefficient a when it counterclockwise rotates ', intercept b '.Describe these reference values (1)～ And the mobile table of reference value (1) '～(9) ' stores to the ROM51 shown in Fig. 6 (9).

In Fig. 6, sheet feed section 20 and transport part 30 are connected to control portion 50.Sheet feed section 20 is from base In paper supply control signal S2 selected paper supply tray 20A etc., via pick-up roller 22 or separate roller 24 Deng extraction paper using P(with reference to Fig. 1).Paper supply control signal S2 is output to sheet feed section 20 from control portion 50.

Paper using P extracted out from sheet feed section 20 is transmitted to image by transport part 30 based on transmission of control signals S3 2 transfer section 42(image transfer position of forming portion 80).Transport part 30 is via transmission in this embodiment Roller 26,28 etc. by the transmission of paper using P to the aligning roller in calibration correction portion 40 to 32.Calibration correction portion 40 Paper using is corrected by being abutted 32 with aligning roller by the leading section of paper supply to paper using P of secondary transfer section 42 Crooked (slope) (calibration correction) of P.Transmission of control signals S3 exports to transport part from control portion 50 30。

Test section 11 is connected to above-mentioned control portion 50.Paper using after the correction of test section 11 testing calibration The amount of bias of P.In this embodiment, test section 11 in the transmission road of paper using P, detect from by paper supply to Reference position, the end Ps that the size Selection of paper using P of secondary transfer section 42 is set together is to paper using P End there is bias detection signal S11 by the amount of bias Δ X of position.Bias detection signal S11 It is the signal of the amount of bias Δ X representing this paper using P for reference position, end Ps, from test section 11 It is output to control portion 50.

In this embodiment, the control portion 50 paper using P after bias detection signal S11 obtains calibration correction is inclined The amount of putting Δ X, controls moving part 41 based on this amount of bias Δ X.Control portion 50 is according to by test section 11 The amount of bias Δ X of detection calculate the biasing for correcting paper using P corresponding to aligning roller to 32 actual Move value Y of amount of movement Δ X.In this embodiment, upper control limit value is set as calibration by control portion 50 Roller to 32 amount of movement and traveling time at least any one, control aligning roller to 32 so that based on setting Move value Y having determined this upper control limit value moves.Such as, control portion 50 will be to from calibration Roller starts the moment of movement to aligning roller to the traveling time setting 32 moment terminating movement to 32 The mobile restriction time and terminate to move to 32 to aligning roller to the position starting movement from aligning roller to 32 The mobile higher limit that the dynamic mobile maximum in the mobile allowed band till position sets arbitrary Individual it is set as upper control limit value.

In this embodiment, control portion 50 calculates and transmits the transmission road of paper using P to secondary transfer section 42 and be somebody's turn to do Move value Y that between paper using P, the frictional force of generation is corresponding.The frictional force of known paper using P and basic weight Relation be that, if basic weight is big, frictional force becomes big, if basic weight is little, frictional force diminishes.In this embodiment, pass Defeated road with the big situation of frictional force produced between paper using P compared with the situation that frictional force is little, control portion 50 Move value Y is set to greatly.

Paper using P after calibration correction is clamped 32 by moving part 41 with aligning roller, based on move value Y-direction moves aligning roller to 32 with the direction x transmitting direction orthogonal of paper using P.In this embodiment, moving part 41 based on mobile control signal S4(move value Y) by paper using P after calibration correction with aligning roller pair 32 clampings, based on move value Y corresponding to the pass the actual amount of movement Δ X that control portion 50 calculates Aligning roller is moved to 32 to the direction x orthogonal with the transmission direction y of paper using P.Moved by this, correction The biasing (bias correction) of paper using P.Mobile control signal S4 be by aligning roller to 32 to paper using P The signal that moves of direction x orthogonal for transmission direction y.Mobile control signal S4 is defeated from control portion 50 Go out to moving part 41.

Image forming part 80 is based on as forming signal S8 and view data Dy, Dm, Dc, Dk formation Coloured image.As formed signal S8 be control corresponding to the photoconductor drum 1Y of each imaging color, 1M, 1C, 1K, electro-mechanical part 2Y, 2M, 2C, 2K, light write section 3Y, 3M, 3C, 3K and development dress Put the signal of 4Y, 4M, 4C, 4K.View data Dy, Dm, Dc, Dk are for forming colour The data of image.As forming signal S8 and view data Dy, Dm, Dc, Dk from control portion 50 It is output to image forming part 80.

2 transfer sections 42 are based on transferring control signal S42 by the toner image on intermediate transfer belt 8 It is transferred to P(2 transfer of paper using).Transfer control signal S42 is to control the signal of 2 transfer sections 42, 2 transfer sections 42 it are output to from control portion 50.Fixing section 44 will be adjusted based on fixing control signal S44 Toner image is fixing to paper using P.Fixing control signal S44 is to control the signal of fixing section 44, from control Portion 50 is output to fixing section 44.Thus, the control system of color copy machine 100 is constituted.

It follows that the control example when bias correction of paper using P is described with reference to Fig. 9～Figure 11.In this embodiment Control portion 50 calculates aligning roller move value Y to 32 according to the basic weight of paper using P.Such as, can lift Go out to be contained in basic weight 62～74g/m²Paper kind the selected situation of paper using P and, be contained in basic weight 257～300g/m²The selected situation of paper using P of paper kind.Certainly, with by the paper using after calibration correction P transmits to the situation of image transfer position.Additionally, be used for moving aligning roller in control portion 50 To setup control higher limit in move value Y of 32, the transmission of paper using P after calibration correction is opened Begin, in the transmission time to the moment of the arrival of image transfer position in the moment, to complete aligning roller to 32 Mobile.In this embodiment, the upper control limit value as move value Y sets mobile higher limit α max+ Surplus.

As control condition, in step ST1 shown in Figure 11, control portion 50 sets image and forms bar Part.Now, in operation display part 48, such as, from the paper supply of paper using P of the paper size of storage regulation Pallet 20A, 20B, 20C etc. select a paper supply tray etc..Figure is shown in operation display part 48 UI picture shown in 7.

At the setting item of paper size or basic weight etc. in UI picture together with icon key K1 or K2 etc. Shown.If pressing the icon key K2 of the basic weight of paper using P, then due to from operation display part 48 to control Portion 50 output represents operation data D48 of the basic weight of paper using P, so determining corresponding to the use shown in Fig. 8 The mobile table of the basic weight of paper P.In this embodiment, basic weight 62～74g/m it is contained in²Paper using P of paper kind It is chosen.Now, reference position, end Ps is set together with the selection of paper size.

Then, in step ST2, control portion 50 performs paper supply and image formation processes.Control portion 50 From paper supply tray 20A, 20B, 20C etc., selected paper supply tray is by basic weight 62～74g/m²Paper The paper using P paper supply planted is to image forming part 80.In image forming part 80, based on as forming signal S8 And view data Dy, Dm, Dc, Dk are the most charged by the electro-mechanical part 2 corresponding to each imaging color Photoconductor drum 1Y, 1M, 1C, 1K in, formed quiet by light write section 3Y, 3M, 3C, 3K Electricity latent image.Electrostatic latent image is quilt by developing unit 4Y, 4M, 4C, 4K corresponding to each imaging color Development.Toner image after development is transferred to centre from photoconductor drum 1Y, 1M, 1C, 1K by 1 time Transfer belt 8.

Then, in step ST3, control portion 50 controls test section 11 so that detection is 2 transfer sections 42 The biasing of paper using P before tight.Test section 11 detects from the end base set together with the selection of paper size Level puts Ps to the end of paper using P by the amount of bias Δ X of position, is exported by bias detection signal S11 To control portion 50.

Then, in step ST4, control portion 50 differentiates that whether the amount of bias Δ X of paper using P is in the mobile upper limit Value below α max.Now, upper control limit value is set as the aligning roller mobile finger to 32 by control portion 50 Make value Y.The upper control limit value of move value Y on the basis of home position HP ± movement of side on Limit value α max.Judgment standard now is at relatively amount of bias Δ X and α max, amount of bias Δ X≤α max Branch control in the case of situation and amount of bias Δ X ＞ α max.

In this embodiment, in step ST1, it is contained in basic weight 62～74g/m²The paper using P quilt of paper kind Select, at the amount of bias Δ X of paper using P in the case of mobile below higher limit α max, be transferred to step ST5 also performs bias correction by move value Y corresponding to actual amount of movement Δ X.This time control Portion 50 processed inputs bias detection signal S11 from test section 11, calculates corresponding to being used for according to amount of bias Δ X Move value Y of the actual amount of movement Δ X of the biasing of correction paper using P.

Now, about move value Y, with reference to the reference value (1) of mobile table.In fig .9, based on The slope a of the move value Y=a Δ X+b of the mobile table of reference value shown in solid (1) is " 1 " Situation.The reference of table is moved, owing to move value Y becomes and actual amount of movement Δ X phase according to this With, so being set as in move value Y and actual amount of movement Δ X the movement time of motor 37 Identical value.

Relevant to action (operating) characteristic of the motor 37 of mobile table based on reference value (1) In Figure 10, the longitudinal axis is the rotary speed ［ rpm ］ of motor 37, and transverse axis is action or the warp of motor 37 Spend the time ［ ms ］.In this embodiment, the acting characteristic of motor 37 shown in solid has and refers to about mobile Make value Y, form the acceleration of reference value (1) based on mobile table, constant speed and the trapezoidal shape of deceleration.

Then, control portion 50 controls moving part 41, by paper using P after calibration correction with aligning roller to 32 Clamping, move value Y-direction based on the amount of movement Δ X corresponding to calculated reality and this paper using P Direction x orthogonal for transmission direction y move clamping paper using P aligning roller to 32.Now, according to electronic The acting characteristic of machine 37, at moment t0 actuating motor 37, electronic to the first transition of moment t1 Machine 37 accelerates.If the time passes through moment t1, then, the most electronic to the time of moment t2 Machine 37 maintains constant speed.If the time passes through moment t2, the most then, motor to moment t3 37 slow down.If the time passes through moment t3, then motor 37 stops.Transport part 30 is by paper using P Deliver to 2 transfer sections 42.

Then, in step ST7, control portion 50 controls 2 transfer sections 42 so that carrying out image and transferring defeated Go out.Based on transfer control signal S42 by the toner figure on intermediate transfer belt 8 in 2 transfer sections 42 As 2 times are transferred to paper using P.Paper using P after 2 transfers carries out fixing process by fixing section 44 and arranges Paper.It addition, paper using P is being delivered to 2 transfer sections 42, by aligning roller to 32 by moving part 41 The clamping of paper using P be released from.Aligning roller recovers 32 to home position HP, in paper using P of next time Bias correction in possess.

In above-mentioned step ST4, the amount of bias Δ X of paper using P exceedes the situation of mobile higher limit amax Under, in step ST1, it is contained in basic weight 257～300g/m²Paper kind paper using P be chosen, institute It is transferred to step ST6 with control portion 50, is held by move value Y corresponding to over mobile higher limit Row bias correction.Control portion 50 controls moving part 41, in order in the control setting move value Y The movement of aligning roller pair is completed in higher limit.

Such as, in step ST61 control portion 50 with reference to the mobile table of the basic weight corresponding to paper using P.? In this example, it is contained in basic weight 257～300g/m²Paper using P of paper kind be chosen, in fig .9, mobile The situation big for slope a ratio " 1 " of command value Y=a Δ X+b (θ ' ＞ 45 °), about move value Y, With reference to the reference value (9) of mobile table, become the linear function figure as shown in two chain-dotted lines.

Then, in step ST62, control portion 50 calculates the move value of the basic weight corresponding to paper using P Y.When this calculating, owing to move value Y is different according to actual amount of movement Δ X, therefore electricity The movement time of motivation 37 is set as different by move value Y and actual amount of movement Δ X Value.According to the acting characteristic of the motor 37 shown in two chain-dotted lines in Figure 10, about move value Y, There is the trapezoidal shape of the acceleration, constant speed and the deceleration that form reference value (9) based on mobile table, but have There is the trapezoidal shape grown crosswise of constant-speed portions length compared with the situation of reference value (1).Moving of motor 37 Make the time elongated.

In this embodiment, according to the acting characteristic of the motor 37 shown in two chain-dotted lines, start at moment t0 Motor 37, to the first transition of moment t1, motor 37 accelerates.If the time passes through Carve t1, the most then, with basic weight 62～74g/m²Situation compare and be extended movement time, to moment t4 Time till motor 37 maintain constant speed.If the time passes through moment t4, the most then, to the moment Till t5, motor 37 slows down.If the time passes through moment t5, then motor 37 stops.

It addition, the tmax in figure is the mobile restriction time, the control of traveling time being aligning roller to 32 Higher limit.Mobile restriction time tmax is set to paper using P after calibration correction in not shown image shape The rising time becoming signal (Vtop) starts to transmit to arriving this 2 transfer sections to 2 transfer sections 42 In the transmission time of the moment tg of 42, it it is the maximum being allowed for required time within this transmission time. Owing to moving in the transmission time that restriction time tmax is set to paper using P in this embodiment, therefore moving The aligning roller movement to 32 can be completed within restriction time tmax.

Then, in step ST7, control portion 50 controls 2 transfer sections 42 so that carrying out image and transferring defeated Go out (2 transfers with reference to above-mentioned).Paper using P is being delivered to 2 transfer sections 42 by moving part 41, By aligning roller, the clamping of paper using P of 32 is released from.Aligning roller reverts to home position HP to 32, The bias correction of paper using P of next time possesses.

Then, in step ST8, EOF(end mark is detected in control portion 50) etc. and perform image shape The end controlled is become to differentiate.In the case of EOF being detected, terminate image and form control.Do not detecting In the case of EOF, return step ST2 and repeat above-mentioned control.

Like this, according to the color copy machine 100 involved by embodiment, by paper using P after calibration correction With aligning roller to 32 clampings, move value Y-direction based on the amount of movement Δ X corresponding to reality and this use When the direction x orthogonal for transmission direction y of paper P moves this aligning roller to 32, control portion 50 controls mobile Portion 41 is so that complete the aligning roller movement to 32 in the upper control limit value setting move value Y.

According to this control, before the leading section of paper using P after calibration correction arrives image transfer position, energy Bias correction is enough made to be reliably completed.Thus, even if color copy machine 100 is different at the basic weight of paper using P In the case of, it is also possible to paper using P after completing bias correction reliably clamps in 2 transfer rolls. Thus, color copy machine 100 is it can be avoided that toner image is transferred to paper using P in bias correction way Situation, make obstruction not occur, simultaneously can not affect the basic weight of paper using P and form the image of high-quality. Additionally, color copy machine 100 can make the image formation system high speed with bias correction function.

According to color copy machine 100, control moving part 41 so that moving restriction time tmax and shifting The aligning roller movement to 32 is completed at least any one the upper control limit value of dynamic higher limit amax.Thus, Toner image can be transferred to before arriving 2 transfer sections 42 make bias correction by color copy machine 100 Paper using P after being reliably completed.

According to color copy machine 100, control moving part 41 so that being counted at the basic weight corresponding to paper using P The aligning roller movement to 32 is completed in the upper control limit value of move value Y calculated, therefore, it is possible to will Toner image is transferred to paper using P after making bias correction be reliably completed before arriving 2 transfer sections 42.

According to color copy machine 100, with to the transmission road of 2 transfer position transmission paper usings P and this use In the upper control limit value of move value Y that the frictional force produced between paper P is corresponding and calculates, such as, Control moving part 41 so that the frictional force that produces between transmission road and paper using become big in the case of with friction The situation that power is little completes aligning roller to 32 in comparing the upper control limit value of the move value being set big Movement.Thus, even if selecting the paper using that basic weight is big, in the case of frictional force becomes greatly, from calibration school The transmission transmission time to the moment that image transfer position arrives the start time of paper using P after just In, it is possible to complete bias correction.

According to color copy machine 100, possesses the aligning roller of the basic weight that would correspond to multiple paper using P to 32 The mobile table that actual amount of movement Δ X is associated with this move value Y, therefore moves table with reference to this, Moving part 41 can be controlled so that completing aligning roller in the upper control limit value of setting in move value Y Movement to 32.

In this embodiment, about the basic weight of paper using P, illustrate 62～74g/m²And 257～300g/m²'s Situation, but it is not limited to this, about basic weight 75～80g/m², 81～91g/m², 92～105g/m²、 106～135g/m², 136～176g/m², 177～216g/m²And 217～256g/m²Situation, It also is able to the reference value (2) corresponding in the move table by application～(8) obtain same effect.

Claims (6)

1. an image processing system, possesses:

Image forming part, forms image in image carrier；

Transfer section, is transferred to paper using by the described image formed in described image carrier；

Calibration correction portion, has aligning roller pair, by leading section and the institute of the paper using of paper supply to described transfer section State aligning roller and abutting is corrected the slope of this paper using；

Test section, detection corrects the described paper using described use relative to the described slope of reference position, end The amount of bias of paper；And

Control portion, calculates for mobile finger corresponding to the basic weight with paper using of the amount of bias that corrects described paper using Make value；

Described calibration correction portion has moving part, by the described paper using after calibration correction with aligning roller to clamping, Based on described move value, by can the motor of rotating orthogonal to the transmission direction with this paper using Direction move described aligning roller pair,

Described control portion described motor the most individually set move value,

And it is described to complete in upper control limit value relative to described move value to control described moving part The movement of aligning roller pair.

2. image processing system as claimed in claim 1,

Described upper control limit value be to from described aligning roller to starting moment of movement to this aligning roller to end Mobile restriction time that traveling time till the moment of movement sets and to split from described aligning roller Begin movement position to this aligning roller to the movement in the mobile allowed band the position of end movement The mobile higher limit that big value sets at least any one.

3. image processing system as claimed in claim 1,

Described control portion calculates the move value of the described aligning roller pair of the basic weight corresponding to described paper using.

4. image processing system as claimed in claim 3,

Described control portion possesses: storage part, stores for constructing the base that would correspond to multiple described paper usings The linear function figure that the amount of movement of described aligning roller pair of weight is associated with the move value of this aligning roller pair Correction coefficient and the data of intercept.

5. image processing system as claimed in claim 4,

Described control portion calculates and the transmission of described paper using is produced between the transmission road and this paper using of transfer section Described move value corresponding to frictional force.

6. image processing system as claimed in claim 5,

In the case of the frictional force that described control portion produces between described transmission road and paper using becomes greatly, by institute State move value to be set to greatly.