CN101567953B - Original manuscript conveying reading device and image forming device - Google Patents
Original manuscript conveying reading device and image forming device Download PDFInfo
- Publication number
- CN101567953B CN101567953B CN2009101335783A CN200910133578A CN101567953B CN 101567953 B CN101567953 B CN 101567953B CN 2009101335783 A CN2009101335783 A CN 2009101335783A CN 200910133578 A CN200910133578 A CN 200910133578A CN 101567953 B CN101567953 B CN 101567953B
- Authority
- CN
- China
- Prior art keywords
- original copy
- original
- white
- original manuscript
- reading device
- 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
Abstract
The present invention relates to an original manuscript conveying reading device and an image forming device, which aims at reducing the reduction of image reading quality in the original manuscript conveying reading device and improving the conveying performance of a sheet original manuscript. In the original manuscript conveying reading device 200 of the present invention, when a conveying original manuscript gets through a copyboard glass 51 and a white reference component, a fixed image reading device 50 on a reading line L reads the original manuscript image information by permeating the copyboard glass 51, which is characterized in that the image reading device comprises a gap adjusting device 60 for controlling the gap between the signal adjusting copyboard glass 51 and the white reference component according to the original manuscript thickness. In particular, a white elastic sheet 62 is arranged on the original manuscript conveying direction upflow of an axis rotation remaining body 66 rotatably supported by a axis core vertical to the original manuscript conveying direction A and is used as the white reference component, the original manuscript conveying direction downflow end is slidably arranged on an accepting component 67, in order to form a convex shape which projects to the copyboard glass deviously, and the devious top locates above the reading line.
Description
Technical field
The present invention relates to can be on recording materials document image and have the image processing system that reads sheet original copy epigraph informational function, as photocopier, facsimile machine or the comprehensive compounding machine etc. of these apparatus functions.And relate to and have the image read-out that reads sheet original copy epigraph informational function, relate in particular to original manuscript conveying reading device wherein, when this installs between conveying sheet original copy is by contact glass and white reference parts, on read line, see through contact glass by the image reading unit spare that is in a fixed position, read the image information of this sheet original copy.
Background technology
Image read-out adopts reads that the original copy fixed optics is arranged in the mode is that move mode is the fixing promptly logical sheet mode of scan mode and original copy mobile optical system, the former is along the fixing mobile image read-out in original image surface, to the imaging surface scanning that exposes, to read the image information of original copy, the latter is for carrying original copy at a predetermined velocity, meanwhile to the original image face exposure, be positioned at the fixed position image read-out read the image information of original copy.In addition, these image read-outs can be divided into the analog type of using the normal image reading device and the digital type of using imaging apparatuss such as CCD.Nearest image read-out be tending towards mostly adopting can read large-scale original copy and help reading after carry out various image processing digital type original copy mobile optical be fixed form.
Before the beginning image read, above-mentioned image read-out was lighted lighting device at the fixed time, the white reference face of irradiation white reference parts, and read the reverberation of this irradiation, and obtain white view data, obtain the accurate compensation data of plain boiled water, proofread and correct in order to carry out shading.In the conventional images reading device, the white reference parts are made as and contact glass between have the gap, or be made as and acted on and slightly press contact glass.
When reading images, employing original copy mobile optical is that the image read-out of fixed form is an original manuscript conveying reading device, carry the sheet original copy by between contact glass and the white reference parts with conveying roller, meanwhile on read line, see through contact glass, read the image information of this sheet original copy with the image read-out that is positioned at the fixed position.
Can be about above-mentioned conventional images reading device with reference to following patent documentation.
Patent documentation 1:JP spy opens the 2003-134307 communique
Patent documentation 2:JP spy opens the 2003-324586 communique
Patent documentation 1:JP spy opens the 2005-123704 communique
Patent documentation 1:JP spy opens the 2006-259658 communique
Yet, between above-mentioned white reference parts and contact glass, exist translucent sheet original copys such as carrying the second former figure in the original manuscript conveying reading device in gap by between white reference parts and the contact glass time, illumination because of lighting device, the white reference parts are shown the shadow that the sheet original image is arranged, connect this shadow during reading images and together read, cause image quality decrease.Therefore, when carrying out image formation according to the above-mentioned image that reads, there is image background generation pollution problems.
In addition, when being subjected to acting on the thin paper original copy of carrying the little easy bending of hardness in the original manuscript conveying reading device that slightly presses on contact glass,, can cause the bending of sheet original copy because of defeated paper impedance at the white reference parts, thereby defeated paper fault takes place, damage original copy or above-mentioned reading images quality decline takes place.Therefore, when carrying out image formation, also there is image background generation pollution problems with the image that reads like this.
Summary of the invention
First purpose of the present invention is to eliminate the generation that the reading images quality descends in the original manuscript conveying reading device, improves the sheet original copy transportation performance of original manuscript conveying reading device simultaneously.
Second purpose of the present invention is to be convenient to adjust the gap between contact glass and the white reference parts, eliminates the generation that the reading images quality descends in the original manuscript conveying reading device in order to simplify, and improves the transportation performance of sheet original copy simultaneously.
The 3rd purpose of the present invention is to carry out automatically the gap adjustment between contact glass and the white reference parts.
The 4th purpose of the present invention is that correct the adjustment makes and have suitable gap between contact glass and the white reference parts.
The 5th purpose of the present invention is to carry out automatically original copy thickness and detects, to be used for gap adjustment between contact glass and the white reference parts.
The 6th purpose of the present invention is to avoid structure complicated, reduces to the cost that lash adjusting device is sent original copy THICKNESS CONTROL signal.
The 7th purpose of the present invention is to reduce original copy and carry impedance that original copy is not bent when carrying that hardness is low to be easy to crooked thin paper, eliminates the possibility that the original copy transmission failure takes place, and avoids taking place original copy damage and reading images quality and descends.
The 8th purpose of the present invention is to avoid background image to pollute, and the image processing system with the good original manuscript conveying reading device of sheet original copy transportation performance is provided simultaneously.
The invention provides with lower device, that is,
(1) original manuscript conveying reading device, wherein, in the time of between the sheet original copy is by contact glass and white reference parts, the image read-out that is positioned at the fixed position sees through the image information that contact glass reads this sheet original copy on read line, it is characterized in that, possess lash adjusting device, be used for adjusting gap between contact glass and the white reference parts according to original copy THICKNESS CONTROL information.
Like this, when image reads, lash adjusting device just can suitably have been adjusted gap between contact glass and the white reference parts according to original copy THICKNESS CONTROL signal, afterwards, when the sheet original copy passed through this gap, the image read-out that is positioned at the fixed position saw through the image information that contact glass reads the sheet original copy that is transferred on read line.
(2) according to (1) described original manuscript conveying reading device, it is characterized in that, rotate the white flexure strip that the original copy throughput direction upper reaches that keeps body is provided as the white reference parts at the axle shape, the dirty end of original copy throughput direction of this white flexure strip slidably mounting in accepting on the parts, and form convex to the contact glass direction crooked is protruded, its summit is positioned at the read line top, the axle shape rotates and keeps body to be subjected to support perpendicular to the axle core of original copy throughput direction, and can rotate around this core.
Like this, when image reads, just can rotate the maintenance body and rotate,, suitably adjust gap between contact glass and the white reference parts with lash adjusting device to change the bending curvature of white flexure strip according to original copy THICKNESS CONTROL signal driving shaft shape.
(3) according to (2) described original manuscript conveying reading device, it is characterized in that possessing drive unit in the lash adjusting device, this drive unit rotates according to original copy THICKNESS CONTROL signal driving shaft shape and keeps the positive and negative rotation of body, in order to change the bending curvature of white flexure strip.Like this, just can when reading, image rotate the maintenance body according to original copy THICKNESS CONTROL signal with drive unit rotation axis shape, to change the bending curvature of white flexure strip.
(4) according to (2) or (3) described original manuscript conveying reading device, it is characterized in that possessing the distance detection device of being located on the read line, be used to detect and the white flexure strip back side between distance, when reading images, testing result according to this distance detection device, adjust the axle shape and rotate a rotation that keeps body so that and the distance between this white flexure strip back side become original copy thickness based on original copy THICKNESS CONTROL signal.
(5) according to any described original manuscript conveying reading device in (1) to (4), it is characterized in that possessing the original copy thickness detection apparatus that is positioned at the read line upper reaches, be used to read original copy thickness, according to the testing result of this original copy thickness detection apparatus, original copy THICKNESS CONTROL signal is sent to lash adjusting device.
(6) according to any described original manuscript conveying reading device in (1) to (4), it is characterized in that possessing the operating portion of input original copy type, according to input results, original copy THICKNESS CONTROL signal is sent to lash adjusting device.Like this, just can send original copy THICKNESS CONTROL signal to lash adjusting device according to the input results of user's operating operation portion input original copy type.
(7) according to (5) or (6) described original manuscript conveying reading device, it is characterized in that, when carrying the thin paper original copy, send the original copy THICKNESS CONTROL signal that forms gap between contact glass and the white reference parts.
(8) as can be on recording materials such as paper, defeated paper film the image processing system of photocopier, facsimile machine etc. of document image, it is characterized in that possessing any described original manuscript conveying reading device in (1) to (7).
Effect of the present invention is as follows, that is,
Invention according to above-mentioned (1), original manuscript conveying reading device is when reading images, the available gap adjusting device is according to original copy THICKNESS CONTROL signal, suitably adjust gap between contact glass and the white reference parts, thereby when translucent sheet original copys such as the second former figure pass through between white reference parts and the contact glass, there is not the gap between sheet original copy and the white reference parts, shadow at sheet original image under the irradiation of lighting device can not reflect on the white reference parts, has disappeared because of reading the problem that shadow causes that the image reading quality descends thereby separate.And when carrying the little flexible thin paper original copy of hardness, owing to carry impedance little, the sheet original copy can not bend yet, and therefore has good original copy transportation performance, can avoid the generation that original copy damages or above-mentioned image reading quality descends.
Invention according to above-mentioned (2), rotating the maintenance body according to original copy THICKNESS CONTROL signal driving shaft shape rotates, to change the bending curvature of white flexure strip, suitably adjust gap between contact glass and the white reference parts with lash adjusting device, thereby made things convenient for gap between contact glass and the white reference parts is adjusted, simply avoid the image reading quality to descend, and improved sheet original copy transportation performance.
Invention according to above-mentioned (3), when reading images, rotate to keep body to rotate with drive unit according to original copy THICKNESS CONTROL information-driven axle shape,, be convenient to lash adjusting device and adjust gap between contact glass and the white reference parts automatically to change the bending curvature of white flexure strip.If use stepper motor as drive unit, then can further simplify and adjust exactly gap between contact glass and the white reference parts.
Invention according to above-mentioned (4), distance detection device is set, except detect and read line between also detect the distance and the white flexure strip back side between distance, when reading images, testing result according to this distance detection device, adjust the axle shape and rotate a rotation that keeps body, make and the white flexure strip back side between distance become suitable original copy thickness based on original copy THICKNESS CONTROL signal, so just can correctly suitably adjust gap between contact glass and the white reference parts.
Invention according to above-mentioned (5), if possess the original copy thickness detection apparatus, just can send original copy THICKNESS CONTROL information to lash adjusting device according to the testing result of this original copy thickness detection apparatus, like this, just, can be used to adjust the detection of the needed sheet original copy thickness of distance between contact glass and the white reference parts automatically by the original copy thickness detection apparatus.
Invention according to above-mentioned (6), user's operating operation portion input original copy type, send original copy THICKNESS CONTROL signal according to this input results to lash adjusting device, thereby original copy thickness detection apparatus etc. needn't be set to cause structure complicated, help reducing the cost that sends original copy THICKNESS CONTROL signal to lash adjusting device.
Invention according to above-mentioned (7), when carrying the thin paper original copy, the original copy THICKNESS CONTROL signal that is used to form gap between contact glass and the white reference parts is sent to lash adjusting device, like this, just can when carrying hardness to be easy to crooked thin paper original copy for a short time, reduce original copy and carry impedance, to avoid the bending of sheet original copy taking place, prevent that figure from reading the picture element amount and descending to cause the original copy transmission failure and to damage original copy.
According to the invention of above-mentioned (8), image processing system possesses any described original manuscript conveying reading device of invention in (1) to (7), therefore can provide the image processing system that has loaded the original manuscript conveying reading device with above-mentioned effect.
Description of drawings
Fig. 1 is the summary structural representation that is provided with the image processing system of original manuscript conveying reading device.
Fig. 2 is the enlarged drawing of original manuscript conveying reading device primary structure.
Fig. 3 A is the amplification plan view of original copy thickness detection apparatus position.
Fig. 3 B is the amplification profile of original copy thickness detection apparatus position.
Embodiment
Below with reference to description of drawings preferred forms of the present invention.
Fig. 1 is the image processing system summary structural representation that is provided with original manuscript conveying reading device.Number in the figure 100 is the image processing system main frame, and label 200 is for being loaded into the logical chip original manuscript conveying reading device in this image processing system main frame 100.
At first, be provided with in the image processing system main frame 100 along the drum type that counterclockwise rotates among the figure as mounting body 10.This as mounting body 10 around, from be positioned at the top charging device 12, set gradually exposure device 13, developing apparatus 14, transfer printing separator 15, cleaning device 16, discharge system 17 etc. by rotation direction.
Be provided with recording materials transfer passage 18 as mounting body 10 belows, be used for recording materials such as conveyance of sheets, resin film, this recording materials transfer passage 18 is provided with from left to right by the transfer printing separation point position T between picture mounting body 10 and the transfer printing separator 15.The upper reaches of this recording materials transfer passage 18 is provided with registration roller to 20, at dirty recording materials conveying device 22, fixing device 23, the conveying roller of being provided with successively to 24.Conveying roller dirty to 24 positions, recording materials transfer passage 18 is divided into paper supply passage 25 and row's paper passage 26 again, and change lever 27 is set on the difference position.Row's paper passage 26 forms upwards upset, and exit roller is set to 28 in the dirtiest position.
The row's of formation paper is accepted parts 30 in the image processing system main frame 100, is used to accept exit roller to 28 recording materials of discharging.In addition, at the back side of image processing system 100 promptly the right side among the figure installed not shown double surface unit.This double surface unit will be failed paper to registration roller to 20 position, upper reaches by image processing system main frame 100 inside once more via being returned in the image processing system main frame 100 after the recording materials upset that paper supply passage 25 is delivered to again.
Secondly, original manuscript conveying reading device 200 possesses the opening and closing device 400 that is provided with on the reading device main frame 300, this opening and closing device 400 with its back side one side be opened or closed freely.Be provided with original copy transfer passage 40 between reading device main frame 300 and the opening and closing device 400, it is approximate horizontal ground straight line formation from left to right in the drawings.Position, upper reaches at this original copy transfer passage 40 is provided with original copy mounting table 42, its be positioned on the reading device main frame 300 and also the top open, the original image surface that need read is stacked on this original copy mounting table 42 down.
Reading device main frame 300 1 sides, be provided with successively according to the original copy throughput direction from original copy mounting table 42s along original copy transfer passage 40: the upstream side conveying roller to light accepting part 52b, image read-out 50 and the downstream side conveying roller of 63 driven roller 54, orientation detection sensors 52 to driven roller 55 of 64 etc.
Image read-out 50 is the closing-type read sensor, and its fixed-site is used to read the image information by the sheet original copy of original copy transfer passage 40.Be provided with as shown in Figure 2 in the image read-out 50: contact glass 51, in the face of original copy transfer passage 40; Lighting device 50a is used for irradiation and carries original copy P; Knot is used to bring together the reverberation of original copy P as lens 50b; And image sensor 50c, be used for the light beam of tying picture after bringing together as lens 50b through knot on sensitive surface is carried out opto-electronic conversion.To be described in detail hereinafter for image read-out 50.
On the other hand, opening and closing device 400 1 sides, as shown in Figure 1, set gradually from original copy throughput direction upper reaches along original copy transfer passage 40: size detection transducer 56, upstream side conveying roller are white flexure strip 62, row's paper detection sensor 53 and downstream side conveying roller to 64 driven voller 58 to 63 driven voller 57, the illuminating part 52a of orientation detection sensors 52, white reference parts etc.
Be positioned at dirty conveying roller in the opening and closing device 400 to 64 dirty position, original copy transfer passage 40 differences have formed difference passing away 44.This difference passing away 44 upwards forms, and returns after the bending, and the discharge rod is set to 46 in the exit position.The front of this opening and closing device 400 is provided with the operating portion 59 towards the front in addition.
The difference position that forms difference passing away 44 in original copy transfer passage 40 differences is provided with change lever 48.This change lever 48 can be changed between the primary importance and the second place.When change lever 48 was transformed into primary importance, the sheet original copy that the end image of delivering to from original copy transfer passage 40 reads was fed forward along arrow b direction, was discharged in first dish 45 of horizontal peripheral hardware on the image read-out 200.And when change lever 48 is transformed into the second place, the sheet original copy that the end image of delivering to from original copy transfer passage 40 reads enters difference passing away 44, being reversed the back carries, carry 46 by being located at the dirtiest discharge rod, be discharged in second dish 47 of erectting peripheral hardware on the image read-out 200 along the arrow C direction.
When using above-mentioned image processing system to duplicate multipage sheet original copy, at first these sheet original copys are stacked on the original copy mounting table 42 initiating key of push portion 59.So, before the beginning image read, the accurate compensation in Heisui River was lighted lighting device to read white flexure strip 62 at the fixed time with behind the data sampling, and from the white view data of this moment, carry out the accurate compensation data sampling of plain boiled water, carry out shading and proofread and correct to carry out the sensitivity compensation of read sensor 50.
After shading proofread and correct to be implemented, the scanning motor that is made of not shown stepper motor etc. was activated, and this actuating force reaches driven roller 57,58 through driving transmitting devices such as bands synchronously.Then, sheet original copy on the original copy mounting table 42 is along with not shown paper feed roller rotates along arrow A direction input among Fig. 1, after size detection transducer 56 detects the insertion of sheet original copy, insert between driven roller 57 and the driven voller 54, carry by original copy transfer passage 40 63 by the upper reaches conveying roller, in the time of between by contact glass 51 and white flexure strip 62, the image read-out 50 that is positioned at the fixed position sees through the image information that contact glass 51 reads this conveying original copy with read line L.The sheet original copy was carried 64 by dirty conveying after image read and finishes, and through change lever 48 conversions, entered first dish, 45 or second dish 47.
At this moment, detect the original copy insertion with size detection transducer 56 and detect the original copy size simultaneously, and before orientation detection sensors 52, temporarily stop, rotary scanning motor once more after the stand-by time through setting arbitrarily is sent to original copy between image read-out 50 and the white flexure strip 62.Then, orientation detection sensors 52 detects the original copy front end, behind the predetermined pulse number, and image read-out 50 beginning reading images surfaces, then grate paper-arranaging sensor 53 detection original copys pass through.
In the last example in a predefined manner the velocity of rotation to scanning motor control, make this velocity of rotation become the original copy transporting velocity.When establishing etc. times is 100%, the velocity of rotation when then control becomes times for velocity of rotation when waiting times divided by the change multiplying power, for example 100% o'clock be 10rmp, rotated with 20rpm in 50% o'clock.
In image processing system main frame 100, rotate the back as mounting body 10 and make its surperficial uniform charged by charging device 12, then, the content that reads according to closing-type image sensor 50, exposure device 13 writes the formation electrostatic latent image, after this by developing apparatus 14 adhering toner, make this latent electrostatic image developing, on picture mounting body 10, form the toner picture.
On the other hand, from recording materials the position is set in due course and begins to carry recording materials, by recording materials transfer passage 18, then registration roller is sent these recording materials into transfer printing separation point position T to 20 settings opportunity, look like to be transferred to above-mentioned toner on the recording materials by transfer printing separator 15 as forming on the mounting body 10, meanwhile, from separate the recording materials after toners finish as transfer printing as mounting body 10, these recording materials are delivered to 23 pairs of transferred image photographic fixing of fixing device by recording materials conveying device 22, then, change through change lever 27, carry and be discharged to paper along arrow D direction and accept in the parts 30.When the recording materials back side also will form image, be converted to along the conveying of arrow E direction by change lever 27, by defeated again paper after the not shown double surface unit upset.
Fig. 2 is the primary structure enlarged drawing of original manuscript conveying reading device 200.
As shown in the figure, opening and closing device 400 inside in original manuscript conveying reading device 200 possess lash adjusting device 60, and it is in the face of the image read-out 50 in the reading device 300.Be provided with in this lash adjusting device 60: the above-mentioned white flexure strip 62 that PET diaphragm etc. form; The axle shape rotates and keeps body 66, with hold-down screw 65 fixing ends, original copy throughput direction upper reaches shown in the arrow F in the drawings; Accept parts 67, the dirty end of original copy throughput direction A of white flexure strip 62 mounting is sliding freely accepted on the parts 67 in this; Stepper motor 68, the not shown driving transmitting device that forms by gear etc. rotates a maintenance body 66 with the axle shape and is connected; And distance detection device is a range sensor 69 etc.
The axle shape rotates and keeps body 66 by not shown basket support, can rotate freely around axle core perpendicular to original copy throughput direction A, this shape rotates and keeps the not shown check-out console of installing on the body 66, detects this check-out console by transmission sensor, determines its home position (homeposition).In addition, accepting parts 67 also forms a shape and two ends and supported by not shown basket on the direction of carrying A perpendicular to original copy.Like this, white flexure strip 62 is set to just that the summit is positioned at read line L top and towards the contact glass 51 crooked shapes of protruding.
Then, drive stepper motor 68 according to original copy THICKNESS CONTROL signal, rotate the 66 positive and negative rotations of maintenance body with the driving shaft shape, change the support angle of end, white flexure strip 62 upper reaches, make white flexure strip 62 dirty ends accept slip on the parts 67, in order to change the bending curvature of white flexure strip 62, adjust the gap between contact glass 51 and the white flexure strip 62.
Above white flexure strip 62 read line L behind, range sensor 69 is set, in order to the distance between the detection and white elastomer 62 back sides, to adjust gap between contact glass 51 and the white flexure strip 62.Usually, the distance between the detection and white flexure strip 62 back sides is rotated and is adjusted the axle shape and rotates maintenance body 66, makes the white flexure strip slight contact in 62 surfaces contact glasses 51.And when reading, then detect with white flexure strip 62 back sides between distance, rotate and adjust the axle shape according to original copy THICKNESS CONTROL signal and rotate a maintenance body 66, this distance is adjusted into original copy thickness.
On the other hand, in order to send original copy THICKNESS CONTROL signals to lash adjusting device 60, the upper reaches conveying roller that is positioned at read line L upper reaches to 63 position on, be provided for detecting the original copy thickness detection apparatus 70 of original copy thickness.In addition, the size detection transducer 56 shown in Fig. 1, orientation detection sensors 52 and row's paper detection sensor 53 etc. have been omitted among this Fig. 2.
Fig. 3 A and Fig. 3 B amplify the position that has shown original copy thickness detection apparatus 70, and wherein Fig. 3 A is a vertical view, and Fig. 3 B is a side view.As shown in the figure, be provided with in the original copy thickness detection apparatus 70: distance detecting transducer 71, the distance between the detection and the original copy back side; Mylar guiding element (Guide Mylar) 72, it is subjected to framework support; And datum plate 73, original copy P is subjected to mylar guiding element 72 face contacts and passes through this datum plate 73 etc.If by defeated when sending the position of original copy P by distance detecting transducer 71 with datum plate 73 between distance be 0, described original copy thickness detection apparatus 70 detects original copy P thickness by with the distance between 71 detections of distance detecting transducer and the original copy back side.
Then, above-mentioned testing result is sent to not shown control device, send original copy THICKNESS CONTROL signal by control device, be activated according to this original copy THICKNESS CONTROL signal stepper motor 68, make a shape rotate support 66 positive and negative rotations via the transmission that drives transmitting device, to change the bending curvature of white flexure strip 62, a little exceedingly adjust the distance between this white flexure strip 62 and the contact glass 51.That is to say, as shown in Figure 2, when when the G direction is rotated,, bending curvature becomes big thereby becoming the gap that makes greatly between white flexure strip 62 and the contact glass 51, and when being the rotation of H direction round about, bending curvature diminishes and makes gap smaller between white flexure strip 62 and the contact glass 51.Then, range sensor 69 detect with white flexure strip 62 back sides between distance, and according to this testing result control step motor 68, should and white flexure strip 62 back sides between apart from adjusting to original copy thickness detection apparatus 70 detected original copy P thickness.
Be provided with range sensor 69 in this example, but also range sensor 69 can be set, but try to achieve the driving pulse number of times of stepper motor 68 and the relation between white flexure strip 62 addendum modifications in advance by experiment, with this relation and according to the testing result of original copy thickness detection apparatus 70, directly adjust the gap between white flexure strip 62 and the contact glass 51.
Original copy thickness detection apparatus 70 can also be set, but by kind from operating portion input original copy P, send original copy THICKNESS CONTROL signal according to this input results to lash adjusting device 60, and according to this original copy THICKNESS CONTROL signal driving stepper motor 69, make a shape rotate support 66 positive and negative rotations via driving the transmitting device transmission, to change the bending curvature of white flexure strip 62, adjust the distance between this white flexure strip 62 and the contact glass 51.
In addition, when original copy was the thin paper sheet, preferably control sent the original copy THICKNESS CONTROL signal that forms gap between contact glass 51 and the white reference parts.Like this, when the thin paper original copy of carrying hardness Xiao Yi to bend, between contact glass 51 and white reference parts, form the gap and carry impedance to reduce original copy, the sheet original copy is not bent, reduce the generation of original copy transmission failure, prevent to damage original copy and image reading quality and descend.
Claims (7)
1. original manuscript conveying reading device, wherein,
In the time of between the sheet original copy is by contact glass and white reference parts, the image read-out that is positioned at the fixed position sees through the image information that contact glass reads this sheet original copy on read line,
It is characterized in that, possesses lash adjusting device, be used for adjusting gap between described contact glass and the white reference parts according to original copy THICKNESS CONTROL information, wherein said white reference parts and described image read-out are arranged on described contact glass both sides relative to one another, and being fixed on a shape as the end, original copy throughput direction upper reaches of the white flexure strip of white reference parts rotates and keeps on the body, the dirty end of original copy throughput direction of this white flexure strip slidably mounting in accepting on the parts, and form to the crooked protrusion of contact glass direction, its summit is positioned at the convex of described read line top, described axle shape rotates and keeps body to be subjected to support perpendicular to the trunnion axis core of original copy throughput direction, and can rotate around this core.
2. according to the described original manuscript conveying reading device of claim 1, it is characterized in that, possess drive unit in the described lash adjusting device, this drive unit drives described axle shape according to described original copy THICKNESS CONTROL signal and rotates the positive and negative rotation of maintenance body, in order to change the bending curvature of white flexure strip.
3. according to claim 1 or 2 described original manuscript conveying reading devices, it is characterized in that, possesses the distance detection device of being located on the read line, be used to detect the distance between the described contact glass and the described white flexure strip back side, when reading images, according to the testing result of this distance detection device, adjust described axle shape and rotate the rotation that keeps body so that and described distance between should the white flexure strip back side become original copy thickness based on described original copy THICKNESS CONTROL signal.
4. original manuscript conveying reading device according to claim 1, it is characterized in that, possesses the original copy thickness detection apparatus that is positioned at described read line upper reaches, be used to read original copy thickness, according to the testing result of this original copy thickness detection apparatus, described original copy THICKNESS CONTROL signal is sent to described lash adjusting device.
5. original manuscript conveying reading device according to claim 1 is characterized in that, possesses the operating portion of input original copy type, according to this input results, described original copy THICKNESS CONTROL signal is sent to described lash adjusting device.
6. according to claim 4 or 5 described original manuscript conveying reading devices, it is characterized in that, when carrying the thin paper original copy, send the described original copy THICKNESS CONTROL signal that forms gap between described contact glass and the described white reference parts.
7. image processing system is characterized in that possessing the described original manuscript conveying reading device of claim 1.
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2008-109923 | 2008-04-21 | ||
| JP2008109923A JP2009260870A (en) | 2008-04-21 | 2008-04-21 | Document feeding and reading device, and image forming apparatus |
| JP2008109923 | 2008-04-21 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101567953A CN101567953A (en) | 2009-10-28 |
| CN101567953B true CN101567953B (en) | 2011-08-17 |
Family
ID=41283892
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2009101335783A Expired - Fee Related CN101567953B (en) | 2008-04-21 | 2009-04-16 | Original manuscript conveying reading device and image forming device |
Country Status (2)
| Country | Link |
|---|---|
| JP (1) | JP2009260870A (en) |
| CN (1) | CN101567953B (en) |
Families Citing this family (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP5860261B2 (en) * | 2011-10-12 | 2016-02-16 | 株式会社東芝 | Image reading apparatus and paper sheet processing apparatus |
| JP5911406B2 (en) * | 2012-09-14 | 2016-04-27 | 株式会社Pfu | Image reading apparatus and image processing system |
| JP5920292B2 (en) * | 2013-08-20 | 2016-05-18 | 富士ゼロックス株式会社 | Transport device |
| JP6331805B2 (en) * | 2014-07-16 | 2018-05-30 | 富士ゼロックス株式会社 | Image reading device |
| JP6828290B2 (en) * | 2016-07-06 | 2021-02-10 | コニカミノルタ株式会社 | Image reader, distance adjustment method and distance adjustment program between the document and the light receiving sensor in the device |
| JP2020088704A (en) * | 2018-11-29 | 2020-06-04 | コニカミノルタ株式会社 | Image reading apparatus and image formation apparatus |
| CN117382945B (en) * | 2023-12-06 | 2024-02-23 | 山东黄金电力有限公司 | Unmanned aerial vehicle is patrolled and examined to electric power |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1414776A (en) * | 2001-10-26 | 2003-04-30 | 佳能株式会社 | Structure for preventing external light entering in image read device |
| CN101043573A (en) * | 2006-03-24 | 2007-09-26 | 虹光精密工业（苏州）有限公司 | Automatic paper conveying apparatus having file control rolling wheel |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH05260260A (en) * | 1992-03-11 | 1993-10-08 | Ricoh Co Ltd | Image reading device |
| JP4411613B2 (en) * | 2006-03-06 | 2010-02-10 | ブラザー工業株式会社 | Image reading device |
-
2008
- 2008-04-21 JP JP2008109923A patent/JP2009260870A/en active Pending
-
2009
- 2009-04-16 CN CN2009101335783A patent/CN101567953B/en not_active Expired - Fee Related
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1414776A (en) * | 2001-10-26 | 2003-04-30 | 佳能株式会社 | Structure for preventing external light entering in image read device |
| CN101043573A (en) * | 2006-03-24 | 2007-09-26 | 虹光精密工业（苏州）有限公司 | Automatic paper conveying apparatus having file control rolling wheel |
Also Published As
| Publication number | Publication date |
|---|---|
| CN101567953A (en) | 2009-10-28 |
| JP2009260870A (en) | 2009-11-05 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN101567953B (en) | Original manuscript conveying reading device and image forming device | |
| US7319842B2 (en) | Pivotal sheet conveying apparatus for skew correction and image forming apparatus | |
| US7300054B2 (en) | Sheet conveying apparatus, image forming apparatus and image reading apparatus | |
| CN101077745B (en) | Sheet conveying apparatus, image forming apparatus, and image reading apparatus | |
| US20060017214A1 (en) | Sheet conveying apparatus, image forming apparatus and image reading apparatus | |
| JP6222554B2 (en) | Image reading apparatus and image forming apparatus | |
| JP2007326708A (en) | Off-center adjusting device | |
| US9219833B2 (en) | Automatic document feeder, image reading device, and image forming apparatus | |
| CN1323539C (en) | Sheet transport apparatus and image reading apparatus | |
| US20070064252A1 (en) | Image forming apparatus | |
| US20110013240A1 (en) | Document feeder, image-scanning apparatus, and image-forming apparatus | |
| US7159862B2 (en) | Sheet delivery mechanism for image forming apparatus | |
| US7277668B2 (en) | Sheet feeding unit and image forming apparatus | |
| JP2009143696A (en) | Document carrier | |
| US7108261B2 (en) | Sheet delivery mechanism | |
| JPH0531142B2 (en) | ||
| JP5531633B2 (en) | Image forming apparatus | |
| CN102385273B (en) | Image forming apparatus | |
| JP4970196B2 (en) | Image reading apparatus and image forming apparatus | |
| US6249334B1 (en) | Image forming apparatus | |
| JP2001039584A (en) | Sheet skew correction device and picture image formation device furnished with it | |
| JP2013065949A (en) | Image reader and image forming apparatus | |
| JP2005154100A (en) | Sheet skew correction device | |
| JP5477701B2 (en) | Document reader and copier | |
| JP2000313548A (en) | Automatic original transporting device |
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 | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20110817 Termination date: 20190416 |