CN1158840C - Image forming apparatus - Google Patents

Abstract

CCD 11 reads a book original mounted on an original reading face and a picture memory 16 stores it through a selector part 15. CPU 14 prepares the histogram of the vertical/horizontal black picture elements of picture data stored in the picture memory to decide whether the book is written vertically or horizontally. In addition CPU detects the direction of characters by character recognizing processing to judge whether the book is opened at its left or right side based on this result to read and record-output the pages in an order corresponding to the deciding result.

Description

Image forming apparatus and method thereof

Technical field

The present invention relates to read former image and form its visual equipment.

Background technology

Figure 10 is the profile of reader part 1 and printer device 2.The original paper feed 101 of reader part 1 is supplied with original from the last page of original to contact glass 102 continuously, just unloads original from contact glass 102 when read operation is finished.When original is sent to contact glass 102, turn on the light 103, and scanner device 104 beginning its move the original that scanning is exposed.From the reverberation of original reflection, by speculum 105,106 and 107 and lens 108 project CCD image sensor 109 (after this being referred to as CCD).The original image of this aforesaid way scanning is read by CCD109.The laser driver 221 of printer device 2, according to the pictorial data of reader part 1 output, drive laser beam reflector 201 emission light beams.Make laser beam irradiation on photosensitive drum 202, form and the corresponding latent image of laser beam.On photosensitive drum 202, formed the part of latent image, adhered to developer by developing apparatus 203.Synchronous with the beginning laser beam irradiation, supply with printing paper by box 204 or box 205, and send conveying device 206 to, there the developer that invests photosensitive drum 202 is transferred on the printing paper.The printing paper that has shifted developer on it is sent to fixing device 207 again, by means of the heating of fixing device 207 and pressurization developer is fixed on the printing paper.Printing paper by fixing device 207 is unloaded by discharge roll 208, and paging device 220 carries out paging, and the printing paper that unloads is left in each bin.It should be noted that if dividing page operations is not the paging device 220 of usefulness then paging device overlays whole printing paper in the bin.Carry out recording operation if specify in the two sides of printing paper, just printing paper is sent to discharge roll 208, the direction of rotation of discharge roll 208 is turned around, and guide printing paper into second printing paper transfer path by flapper 209.Carry out the multipage recording operation if specify, then printing paper is just guided the second such printing paper transfer path into flapper 209, does not make this low discharge roll 208 that is sent to.By above-mentioned sequential, the printing paper of guiding the 2nd printing paper transfer path into is supplied with conveying device 206.

,, seek a kind of method here, make the original of binding, duplicate by page turning rather than by the feeding original as book with above-mentioned structure.In this case, have the image processing facility of so-called pair of pages discrete function, can read each expansion page or leaf of a book continuously, this has been known.The operator must specify, and the recto or the verso that launch the page are the pages or leaves to be read that at first is used for copying operation.

General magazine of being sold and so on, some is that (below be called " open on the right side " magazine) reads the situation of magazine from right to left, some then is (below be called " open on a left side " magazine) situation of reading magazine from left to right.In " open on the right side " magazine, recto is positioned at before the verso, and in " open on a left side " magazine, verso is before recto.When utilizing two pages of divided function, with regard to " open on the right side " magazine, from the recto to the verso, carry out read operation continuously, and for " open on a left side " magazine, be from the verso to the recto.Therefore, the operator often must make one's options to " open on the right side " or " open on a left side ", causes operation heavy.

Summary of the invention

The present invention considers above-mentioned situation.As purpose of the present invention, provide the method that a kind of image forming apparatus and image form, to overcome above-mentioned shortcoming.

Another object of the present invention provides a kind of utilization and determines that automatically the book-type original is " open on the right side " type or " open on a left side " type, and, provide the image forming apparatus of the smooth operation of user and the method that image forms according to the read operation order of determining to judge the book-type original.

According to an aspect of the present invention, provide a kind of image processing facility, having comprised: an original is placed flat board, places the book-type original on it and launches page or leaf; Read-out device is used to read the book-type original that is placed on the described original placement flat board; Tape deck is used to carry out the picture record process to the verso of the book-type original of being read by described read-out device, and carries out the picture record process to the recto of the book-type original of being read by described read-out device; Determine device, be used for determining that the book-type original is that type is opened on a left side or type is opened on the right side; And control device, be used for control so that select first order, in this first order, as definite result according to described definite device, the book-type original is that the right side is when opening type, carry out picture record process earlier, carry out picture record process then the verso of book-type original to the recto of book-type original; And control device is used for control so that select second order, in this second order, as definite result according to described definite device, the book-type original is that a left side is when opening type, carry out picture record process earlier, carry out picture record process then the recto of book-type original to the verso of book-type original.

According to another aspect of the present invention, provide a kind of method of control chart image processor, may further comprise the steps: read and be placed on the expansion page or leaf that original is placed the book-type original on the flat board; Determine that the book-type original is that type is opened on a left side or type is opened on the right side; As definite result according to described determining step, the book-type original is the right side when opening type, selects first order by tape deck, in this first order, carry out picture record process earlier, carry out picture record process then the verso of book-type original to the recto of book-type original; And as definite result according to described determining step, the book-type original is that a left side is when opening type, select second order by tape deck, in this second order, carry out picture record process earlier, carry out picture record process then the recto of book-type original to the verso of book-type original; Wherein, described tape deck is carried out the picture record process to the verso of the book-type original of reading in described reading step, and carries out the picture record process to the recto of the book-type original of reading in described reading step.

Description of drawings

Other characteristics of the present invention and advantage, from the following description of making in conjunction with the accompanying drawings, it is clearer to become, and in the accompanying drawings, same is appointed as identical or similar parts with reference to character in its whole accompanying drawings.

In conjunction with describing accompanying drawing partly in detail with having constituted, illustrate embodiments of the invention, and with illustrating in order to set forth principle of the present invention.

Fig. 1 is the structured flowchart of presentation image forming device;

Fig. 2 A and 2B are the examples of book-type original;

Fig. 3 is the graph of a relation between perpendicular original of writing of expression and the histogram that obtains from the vertical and horizontal of original;

Fig. 4 is the graph of a relation between horizontal original of writing of expression and the histogram that obtains from the vertical and horizontal of original;

Fig. 5 A and 5B are the schematic diagrams that explanation detects the histogram recess;

Fig. 6 is the original situation explanation of laterally writing of expression width greater than length;

Fig. 7 is the schematic diagram that expression detects character direction;

Fig. 8 describes during the books copy mode flow chart of copying operation;

Fig. 9 is that expression is placed on original during the copying operation and reads books side view of the state on the face; And

Figure 10 is the structure example subgraph of presentation image treatment facility.

Embodiment

The preferred embodiment of the present invention will be described in detail by accompanying drawing.

Fig. 1 is the block diagram that adopts image processing facility of the present invention, the basic structure of this equipment is the same with Figure 10's, form by reader part 1 and printing machine part 2, the picture intelligence of reading with CCD11 wherein, adjust circuit 13 and carry out circuit such as known Digital Signal Processing through A/D converter 12, image obfuscation, give printing machine part 2 again, and utilize partly output image of printing machine by laser explosure, development, transfer and photographic fixing.

The CPU of label 14 expression control appliance operations; 15 presentation selectors still are video memory 16 in order to select sending printer device 2 picture intelligence to be exported; 16 presentation image memories are in order to store the image that prescan is read; And 17 expression scanning monitors, in order to according to carrying out the operating sequence that a kind of method (treat back describe) is judged with CPU14, the operation of gated sweep original.

It should be noted, label 18 expression operating units, this unit comprises sets the duplicating key that duplicates umber, detect the books copy mode of book-type original gutter pos (opening direction), with the setting key of setting known copy mode, and order the various buttons (or switch) that begin to duplicate, also have liquid crystal indicator in addition.The memory of the operating procedure of label 19 expression storage CPU14 (according to the program of flow chart shown in Figure 8) and character recognition (treating the back explanation) code dictionary.

Below, will the operation (will omit the declaratives of common copy mode, because do not have direct relation with the present invention) of books copy mode be described.

At first, will the process that a kind of original gutter pos of being carried out by CPU14 detects be described.

Fig. 2 is the key diagram of describing with normal each page mode of bookbinding.The example of Figure 1A represents a kind of " open on the right side " book, Fig. 2 B is a kind of " open on a left side " book.In Fig. 2 A, before the page or leaf 21 of page or leaf 22 on the left sides on the right, and in Fig. 2 B, then before the page or leaf 23 on the left side page or leaf 24 on the right.Bookbinding form shown in Fig. 2 A is the feature of perpendicular written document, and another kind of file is generally bound by mode shown in Fig. 2 B.As seen from the above, as find out with method shown in Fig. 2 A and bind into the book-type file, in other words, if can find out vertically to be write as file, just can determine to read file is " open on the right side " type or " open on a left side " type.

CPU14 carries out each step illustrated in fig. 8, finishes the books copy mode.It should be noted, when pressing the books copy button (not shown) that is contained in operating unit 18, just start this operation.Here supposed the book-type original has been placed on the face of reading (contact glass).

At first, at step S1, CPU14 connects selector 15, in order to select video memory 16, the picture intelligence that temporary transient storage is read in video memory 16, the picture intelligence that promptly utilizes CCD11 to be read by the prescan original.In video memory 16, deposit " 1 ", be used for and the corresponding pixel of original blackboard, and deposit " 0 ", be used for corresponding pixel, as shown in Figure 3 with white portion.Fig. 3 expresses the perpendicular example of writing original; Fig. 4 shows the example of the original of writing across the page.

Here, the size of supposing a former image is that m (crosswise spots) * n (vertically point), this CPU14 can obtain parameter Y (m) and t (n) and read a pixel, the pixel that for example former figure upper left corner coordinate (1,1) is located in memory 19.Then, read-out position (1,2), (1,3) ... (1, m),, repeat readout from left to right again from next line.

Suppose that position that this stage reads is (i, j) (1≤i≤n, 1≤j≤n).When the position of a pixel location of being concerned about is 1, then just make the information of parameter t (j) and y (i) increase " 1 ".

When repeating said process up to the right pixel of footline, storage along the black pixel number of sub scanning direction as parameter y (i), storage along the black pixel number of main scanning direction as parameter t (j).

So, can acquisition and Fig. 3 and Fig. 4 in the corresponding data of histogram of label 31 to 34 expressions.This process is carried out in step S2.

From Fig. 3 and Fig. 4 as can be seen, between the character is little at interval, and interval in the ranks is then bigger.Therefore, among the Nogata Figure 32 of vertically (below be called vertical histogram) in Fig. 3, can see recess at interval between the display line.In Fig. 4, in horizontal Nogata Figure 33 (below be called horizontal histogram), also can see similar recess.So,,, and determined by the detection recess no matter be that heavily fortified point is write or the original of writing across the page all can be utilized histogram.

At this, the detection method of recess is described with reference to Fig. 5.There is not the situation of this recess in Fig. 5 A explanation, and Fig. 5 B then illustrates the situation that recess occurs.There is shown and indicate peaked line 41A of histogram and 41B, and indicate peaked half line 42A and 42B.Line 42A and 42B and histogram crosspoint are marked with stain in Fig. 5 A and 5B.In Fig. 5 A, can only find two stains 43, but in Fig. 5 B, but find eight stains 44.In other words, when recess occurring, the double as many crosspoint of line number that resembles will appear.Therefore, set the condition whether line more than three is arranged, as the standard that recess occurs.If have, just can be judged as and exist the recess of between-line spacing to represent more than six crosspoints.So, under the situation of Fig. 3, detect recess from vertical Nogata Figure 32.And under the situation of Fig. 4, detect the recess result from horizontal histogram, and can determine that Fig. 3 is the file of longitudinally being write as, Fig. 4 is along the file of laterally being write as.This process is at Fig. 8 ^*In step S3 finish.

Then, CPU14 determines the direction (step S4) of a character.Only carry out aforesaid operations, may determine that a file shown in Figure 6 is a file of vertically writing.Determine that for fear of such mistake reply detects along the feature of the character array direction written character of character writing mode characteristics.

The CPU14 intercepting utilizes its character graphics and the character recognition dictionary of depositing in the memory 19 from the zone of a character of pictorial data, by calculating similarity, carries out the character image identifying operation, and adopts well-known character identifying method (Fig. 7).Conduct is to the character recognition dictionary (model) of its visit in processing, one by the character of normal direction 62 and other three correspond respectively to revolve turn 90 degrees, the figure 63,64 and 65 of the characters of 180 degree and 270 degree is to produce according to basic dictionary figure, and obtains the similarity between original character 61 and each reference character.If resulting similarity, character for character that rotates to be 0 degree (standard) and Rotate 180 degree is maximum words, just can be defined as the perpendicular file of writing to original, if similarity is maximum to revolving the character that turn 90 degrees with 270 degree, then the file that this original is defined as writing across the page.The figure that has rotated 180 degree is equivalent to the perpendicular written document of upside down placement.Above-mentioned theory is shown in the following table.

Table 1

	Hard histogram	Horizontal histogram	The most suitable model
				Along (Fig. 3) of vertically writing	Recess	No recess	0 degree or 180 degree
Along (Fig. 4) of laterally writing	No recess	Recess	0 degree or 180 degree
				(Fig. 6) that width is laterally write greater than the edge of length	Recess	No recess	90 degree or 270 degree

If satisfy the condition of " along vertically writing (Fig. 3) " in the above-mentioned table, then can be defined as perpendicular written document to a file, that is, " open on the right side " file shown in Fig. 2 A.

When finish above-mentioned determine after, CPU14 forwards step S5 to, in this step, shows that at operating unit 18 the confirmative document pages or leaves open the information of direction.Show the information of pressing initiating key in addition simultaneously.

Here, when the initiating key of operator's push unit 18, process forwards step S7 to, and the page or leaf of determining according to preceding step in this step is opened direction, carries out the duplicating process of S8 set by step or step S9.

For instance, with reference to Fig. 9, establishing determined book-type file is " open on the right side " type, and then the page number read in the part A on the face (contact glass) of original is in before the page number of part B (books shown in Fig. 2 A are inverted).Thereby in step S8, the gated sweep controller 17 like this, at first part A carried out the duplicating process, with that part B carried out then and duplicate.

Simultaneously, be " open on a left side " type if determine the book-type file, then the page number among the part B of Fig. 9 is in part A before the page number.Therefore, at step S9, at first part B is carried out the duplicating process and again part B carried out duplicating.

In both cases, two pages of processes of duplicating are all carried out a kind of copying operation (step S8 or S9).When finishing said process, technical process is returned step S5, and showing in this step needs the operator to turn to the page information of one page copying operation under the execution and wait to press initiating key.

The duplicating process can be carried out in a manner described continuously.If along the somewhere of said process, the cancel key in the push unit 18, technical process will forward step S10 to from step S6 so, when obtaining judging " Yes ", the books copy mode of constipation Shu Shangshu.

According to above-mentioned explanation, as long as the operator just can carry out continuous copying operation by the suitable page or leaf that turns to, always successively from a low number page or leaf to high number page or leaf, each page that output has been duplicated, and be " open on the right side " type, or " open on a left side " type regardless of original.So, for example, no longer export page or leaf 2,1,4,3,6,5...... that a series of single numbers pages or leaves and even numbers sign indicating number page or leaf fall.It should be noted that the present invention also can be applicable to export the equipment that duplicates surperficial ventricumbent printing paper.Yet, output duplicate that the surface makes progress the situation of printing paper equipment under, the low homepage of having duplicated should be to wait to duplicate the last page of book-type file, thereby, need simple the rearrangement to duplicate good page or leaf.

When certain number of pages of book-type file was to be duplicated, above-mentioned problem can be resolved by carrying out copying operation from last page.In this case, the copying operation of " open on a left side " type or " open on the right side " type book need be turned around.

In the above description, the sequence that scans and export former image can be controlled.But page or leaf to be duplicated in all book-type files all will be read out and deposit in the video memory, and during output image, then according to determining the result, can put upside down the order of each page output by fixing printing or storage operation order.

In this case, because big capacity is essential by video memory,, for example, can use hard disk and so on memory and without the IC memory for reducing cost.

In the above-described embodiment, can determine the direction that page or leaf is opened automatically, and carry out copying operation according to definite result.Can also specify like this, make the operator, perhaps specify " open on the right side " type, perhaps specify " open on a left side " type by operating unit 18.In this case, do not need to resemble and specify by the operator the foregoing description.But, for example,, histogram is produced and the processing of character recognition has not just needed assigned operation the operation of the prescan of original.

The present invention can also be used for the system that is made of such as parts such as main frame, interface circuit or printers many, perhaps is used to the equipment that comprises that separate unit installs such as photocopier.

And the present invention also can be used for by program feed system or equipment are implemented situation of the present invention.Under this occasion, storage has just constituted the present invention according to the storage medium of program of the present invention.Installed from the system or equipment of storage medium read routine and just can realize according to function of the present invention.

The present invention is not limited to each above-mentioned embodiment, can also make various changes and improvements in design of the present invention and scope.Therefore, for the purpose of the scope of estimating the present invention's announcement, draft following each claim.

Claims (13)

1, a kind of image processing facility comprises:

An original is placed flat board, places the book-type original on it and launches page or leaf;

Read-out device is used to read the book-type original that is placed on the described original placement flat board;

Tape deck is used to carry out the picture record process to the verso of the book-type original of being read by described read-out device, and carries out the picture record process to the recto of the book-type original of being read by described read-out device;

Determine device, be used for determining that the book-type original is that type is opened on a left side or type is opened on the right side; And

Control device, be used for control so that select first order, in this first order, as definite result according to described definite device, the book-type original is that the right side is when opening type, carry out picture record process earlier, carry out picture record process then the verso of book-type original to the recto of book-type original; And control device is used for control so that select second order, in this second order, as definite result according to described definite device, the book-type original is that a left side is when opening type, carry out picture record process earlier, carry out picture record process then the recto of book-type original to the verso of book-type original.

According to the equipment of claim 1, it is characterized in that 2, the control of described control device is so that according to definite result of described definite device, change the read order of described read-out device the verso of book-type original and recto.

According to the equipment of claim 1, it is characterized in that 3, described control device control has wherein been stored the recto of the book-type original of being read by described read-out device and the image of verso so that change the order of reading from storage device in storage device.

According to the equipment of claim 1, it is characterized in that 4, described definite device comprises checkout gear, be used for detecting the direction of the character array of book-type original according to the output of described read-out device;

Wherein, described checkout gear comprises generation device, is used for producing along horizontal and vertical pixel histogram according to the output of described read-out device.

5, according to the equipment of claim 4, it is characterized in that, described checkout gear further comprises recognition device, is used for the direction of identification character, and described checkout gear detects the direction of character array according to the recognition result of histogram that is produced by described generation device and described recognition device.

6, according to the equipment of claim 1, it is characterized in that, also comprise setting device, be used for setting whether carry out the books logging mode;

Wherein, setting under the situation of books logging mode, carrying out described definite device and select first order or second order by described setting device; And do not set at described setting device under the situation of books logging mode, do not carry out described definite device.

7, a kind of method of control chart image processor may further comprise the steps:

Read and be placed on the expansion page or leaf that original is placed the book-type original on the flat board;

Determine that the book-type original is that type is opened on a left side or type is opened on the right side;

As definite result according to described determining step, the book-type original is the right side when opening type, selects first order by tape deck, in this first order, carry out picture record process earlier, carry out picture record process then the verso of book-type original to the recto of book-type original; And

As definite result according to described determining step, the book-type original is a left side when opening type, selects second order by tape deck, in this second order, carry out picture record process earlier, carry out picture record process then the recto of book-type original to the verso of book-type original;

Wherein, described tape deck is carried out the picture record process to the verso of the book-type original of reading in described reading step, and carries out the picture record process to the recto of the book-type original of reading in described reading step.

8, according to the method for claim 7, it is characterized in that, control described reading step so that change the order of reading of the verso of book-type original and recto according to definite result of described determining step.

9, according to the method for claim 7, it is characterized in that, control described reading step, wherein in storage device, stored the recto of the book-type original of in described reading step, reading and the image of verso so that change the order of reading from storage device.

According to the method for claim 7, it is characterized in that 10, described determining step comprises the detection step that detects the direction of the character array in the book-type original according to the output of described reading step;

Described detection step comprises that the output according to described reading step produces along the histogrammic generation step of horizontal and vertical pixel.

11, according to the method for claim 10, it is characterized in that, described detection step further comprises the identification step of identification character direction, and described detection step detects the direction of character array according to the recognition result of histogram that produces in described generation step and described identification step.

12, according to the method for claim 7, it is characterized in that further comprise whether setting the setting step of carrying out the books logging mode;

Wherein, set in described setting step under the situation of books logging mode, carry out described determining step to select first order or second order; And do not set under the situation of books logging mode in described setting step, do not carry out described determining step.

13, according to the method for claim 12, it is characterized in that, further comprise step:

Be presented at the result who determines in the described determining step by display unit;

After step display showed the result who determines, input instruction was to cancel described books logging mode; And

According to the instruction of the described input in the step of described cancellation input, according to described books logging mode cancellation recording process.

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