CN1172310A

CN1172310A - Digital copier

Info

Publication number: CN1172310A
Application number: CN 96101056
Authority: CN
Inventors: 刘杰
Original assignee: Individual
Current assignee: Individual
Priority date: 1996-02-14
Filing date: 1996-02-14
Publication date: 1998-02-04
Anticipated expiration: 2016-02-14
Also published as: WO1997030417A1; CN1090356C; AU1588797A

Abstract

The present invention relates to a digital copying machine ,including image scanning input mechanism, image editing and computing mechanism, panel item selection input mechanism, image printing and output mechanism, image scanning data buffer storage zone, printing data buffer storage zone and three strobing gates. The keys and microprocessor of panel item selection input mechanism are used for strobing and controlling works of all mechanisms or components, and when copying pattern, said copying machine makes printing output according to scanning line synchronization; when modifying pattern, the copying machine can fetch and store data according to the frame; the image data can firstly be inputted into the image editing and computing mechanism, modified and reduced, then the image can be printed.

Description

Digital copier

The present invention relates to a kind of optical computing equipment, relate to a kind of digital copier or rather.

Light drum-type duplicating machine is to adopt optical principle that the image of original paper is projected light drum surface, under the effect of static, ink powder is fixed on the copy by the original paper image, finishing duplicating working, so light drum-type duplicating machine can be described as analog copying machine from copy mode.Such duplicating machine do not possess to the original paper image store, the ability of modification, school row, editor etc., since the light signal of image can be subjected to such as light deflection modulation, magnetic show, transfer printing and photographic fixing etc. are by the restriction of factors such as ink powder index and mechanical quality decision, the pixel of image is incurred loss, thereby be difficult to the photocopying effect that reaches desirable, can not realize high-quality duplicating, and high-quality light drum-type duplicating machine price is also very expensive.

The copy device with storage, modification, school row, editor, printing function that image scanning machine (as facsimile recorder, fax card) and computing machine, printer are connected and composed is also arranged in the existing office equipment, because each equipment adopts multiplicative model to connect, take up room many, connect more loaded down with trivial details, the duplicating process needs reading in operation, printing supervisor, data and can not directly transmitting of machine as calculated, thereby uses inconvenience, copying speed slower.

The objective of the invention is to design a kind of digital copier, is a kind of integral type duplicating machine of being made up of scanning of image input, computing machine and image printing output that can handle again an images.

The photocopying principle of this duplicating machine is that the original paper video is changed into digital signal after optical scanning, or stores in the duplicating machine, the original paper image is made amendment and editor again in order to the operator, again through printing output; Or directly drive printout, thereby finish the duplicating task.Because in the duplicating process, its image is to transmit with the form of numeral, duplicate so image can carry out fidelity effectively, thereby make photocopying effect even more ideal, and how easy to use function is than light drum-type duplicating machine.

Digital copier of the present invention, comprise and to duplicate the scanning of image input mechanism that original image scanning is converted into digital signal, pictorial data is carried out the image editing calculation mechanism of secondary processing editing and processing, being used to control the panel options input mechanism that duplicates character and pictorial data is printed reduction becomes visual image printing output mechanism, it is characterized in that:

Also comprise first data buffer area, second data buffer area, first storbing gate, second storbing gate and the 3rd storbing gate; The output terminal of the described scanning input mechanism of described first data buffer area input termination, the described first data buffer area output terminal also connects first, second storbing gate input end, the described first storbing gate output terminal also connects the input of described image editing calculation mechanism, output terminal and the 3rd storbing gate input end, the described second number pick buffer area input end also connects second, third storbing gate output terminal, the described image printing output mechanism of described second data buffer area output termination input end; Described panel options input mechanism is exported each gating control signal and is connect described scanning of image input mechanism, image editing calculation mechanism, image printing output mechanism, first data buffer area, second data buffer area, first storbing gate, second storbing gate and the 3rd storbing gate respectively.

Described panel options input mechanism comprises microprocessor, first code translator, second code translator, by copy mode or gray scale preference pattern or dwindle pattern or option input key that amplification mode constitutes and in each option pattern, do duplicating or numerical value enter key that modification, gray shade scale, magnification ratio, scale down are selected; Described first, second decoder output connects described microprocessor input end, and described option input key connects the first code translator input end, the described numerical value input keyed jointing second code translator input end, and described microprocessor is exported described gating control signal.

Further describe technology of the present invention below in conjunction with embodiment and accompanying drawing:

Fig. 1 is a ultimate principle block diagram of the present invention;

Fig. 2 is a basic structure block diagram of the present invention.

Referring to Fig. 1,11 is the scanning of image input mechanism among the figure, and 12 is pictorial data, and 13 is the image editing calculation mechanism, and 14 is the panel options input mechanism, and 15 is the image printing output mechanism.

Scanning of image input mechanism 11 is digital imagery transformation mechanisms, has and the essentially identical principle of work of flatbed scanner, has to be converted into digital signal and to import the temporary function of data buffer area through scanning topworks duplicating original image.It during enforcement the operating rate that can further improve the scanning of image input mechanism, its pictorial data should be directly inputted to (12) in the data buffer area by data channel, can reduce like this because the slow problem of the copying speed that data reading speed caused of image editing calculation mechanism.At present, the resolution of scanner can reach 2400dpi, and employed smooth drum-type duplicating machine, its precision improves relatively on the existing market for this.Scanner can divide two kinds of monochrome, colours, monochromatic sweep velocity work with 300 point/seconds, and a width of cloth A4 paper only needed to finish the digital imagery transformation 7 seconds.This digital duplicating machine can be used for reference at present the quite scanning of image input method work of ripe flatbed scanner.

Image editing calculation mechanism 13 is to be the mechanism that can carry out the secondary processing editing and processing to pictorial data 12 of core with the computing machine, can be according to people's wish partly or entirely editing, revising to pictorial data 12, also can or all carry out processing such as convergent-divergent, transposition to the local of image, from the color photocopying angle, also can local or whole colors of image be defined again.Because the universal and application of portable computer in recent years, thereby when implementing digital copier, the side or the napex of the duplicating machine casing that computer department can be placed in are to form integral structure.Simultaneously because duplicating machine only is the office equipment of a special use, can be too not high to its calculation requirement, thereby can not keep hard disk etc., be provided with one from practicality and can supply storage A3 paper to amass, resolution reaches the high capacity internal memory of 2400dpi, is used to store the pixel of image.If be designed to color digital copying machine, then capacity is enlarged four times again.In addition, can LCD panel be set, keyboard is arranged on the dark place of duplicating machine body or is arranged on the LCD panel side in the duplicating machine body upper.In order to improve editing speed, can add search and modification that Genius mouse is accelerated pictorial data to pictorial data 12.In order permanently to keep the duplicating original paper, the dump device interface of data should be set, as the interface of disk or CD.Because the specificity of this calculation mechanism, its software need not to be retained in the external memory medium, can be directly fixed in the internal memory of calculation mechanism.

Image printing output mechanism 15 can be made according to the principle of laser printer or ink-jet printer or duplicating machine, and pictorial data 12 is printed reduction becomes image.For improving copying speed,, also can adopt the mode of subregion, multiple print head etc. that image is printed simultaneously during enforcement except that pictorial data can being directly inputted to the data buffer area of ink-jet printer or laser printer by data channel after transforming.Because in existing dot matrix printer, has only the relative other forms of printer precision height of laser printer with ink-jet printer, resolution can reach 720dpi, and especially the resolution of laser printer has reached more than the 2000dpi, plays an important role to improving copying quality.Aspect print speed, laser printer is also than the ink-jet printer height, the LaserJet4V type laser printer of releasing in recent years as hewlette-packard is under the situation of A4 breadth, 600 * 600dpi resolution, printable 6 pages of per minute, and its HP DJ1200C type ink-jet printer of releasing in the recent period, with 600 * 300dpi resolution, per minute only can be printed 7 pages, this shows their difference on print speed.But ink-jet printer is much lower than the laser printer cost aspect colour print, and this can become important selection to this digital copier in the design of color photocopying.Laser printer and ink-jet printer are for the image printing output of this digital copier, though its duplicating and row's chart speed degree are slow than light drum-type duplicating machine, its ratio of performance to price is that light drum-type duplicating machine is incomparable.

Panel options input mechanism 14 is used for control and duplicates character, and four kinds of options for example can be arranged, and wherein first option is that copy mode is selected, comprise modification pattern and copy mode, when selecting the modification pattern, the image of its original paper can be mended input imagery editor calculation mechanism 13, in order to the usefulness of modification; When selecting copy mode, will be considered to need not to handle again original paper, this moment, digital copier did not just need to read and store by a frame, and can print output synchronously by scan line, to improve copying speed.Second option is that gray scale is selected, and 64 grades of gray scales can be provided, and is enough to satisfy the requirement to gray scale such as middle and high level desktop scanners and laser printer.Option three, four contracts, puts selection for duplicating, for example can be in 2% ratio increasing or decreasing.The core component of panel options input mechanism 14 is microprocessors.

Referring to Fig. 2,21 is that first data buffer area, 22 is that second data buffer area, 23,24,25 is respectively first, second, third storbing gate among the figure.Microprocessor 26 (as 8951), first code translator 27, second code translator 28 and option input key 29, numerical value enter key 30 constitute panel options input mechanism 14.The signal of microprocessor 25 output gated sweep input mechanisms 11, image editing computing machine dream 13, image printing output mechanism 15, first and second

data buffer area

21,22 and 23,24,25 work of first, second and third storbing gate, storbing gate is as interface circuit work.

When the operator places original paper on the scanning mechanism 11, press panel input option one (29,30) behind the selection copy mode, make digital copier enter the duplicating state, this moment, the scanning topworks 11 of digital copier just can be under the control of microprocessor 25 (8951), be converted into digital signal and be stored in the scan-data buffer area 21 by being about to the image of original paper, because when option operations, microprocessor 26 has opened storbing gate 24 and cut out simultaneously storbing gate 23, therefore pictorial data can directly enter in the print data buffer area 22, under the control of microprocessor, printout mechanism 15 will print image reduction by the pictorial data that it stored.In like manner, if select the modification pattern, microprocessor 26 can cut out storbing gate 24, and open storbing gate 23 simultaneously, and pictorial data is input in the image editing calculation mechanism 13, in order to the operator image is handled again, when needs reduce this data processed, can inform that microprocessor 26 opens storbing gate 25 and send pictorial data to print data buffer area 22, for the reduction print image, and this moment,

storbing gate

23,24 was all closed.

By the description to the digital copier principle of work, can summarize breadth, speed, resolution etc. is the parameter of weighing the digital copier quality, but the contrast of reference light drum-type duplicating machine.

Digital copier has high-quality photocopying effect, will have immeasurable value in fields such as printing, electronics, finance, public security and national defence.

Claims

1, a kind of digital copier, comprise and to duplicate the scanning of image input mechanism that original image scanning is converted into digital signal, pictorial data is carried out the image editing calculation mechanism of secondary processing editing and processing, being used to control the panel options input mechanism that duplicates character and pictorial data is printed reduction becomes visual image printing output mechanism, it is characterized in that:

Also comprise first data buffer area, second data buffer area, first storbing gate, second storbing gate and the 3rd storbing gate; The output terminal of the described scanning input mechanism of described first data buffer area input termination, the described first data buffer area output terminal also connects first, second storbing gate input end, the described first storbing gate output terminal also connects described image editing calculation mechanism I/O end and the 3rd storbing gate input end, the described second data buffer area input end also connects second, third storbing gate output terminal, the described image printing output mechanism of described second data buffer area output termination input end; Described panel options input mechanism is exported each gating control signal and is connect described scanning of image input mechanism, image editing calculation mechanism, image printing output mechanism, first data buffer area, second data buffer area, first storbing gate, second storbing gate and the 3rd storbing gate respectively.

2, digital copier according to claim 1 is characterized in that: described panel options input mechanism comprises microprocessor, first code translator, second code translator, by copy mode or gray scale preference pattern or dwindle pattern or option input key that amplification mode constitutes and do duplicating or numerical value enter key that modification, gray shade scale, magnification ratio, scale down are selected in each option pattern; Described first, second decoder output connects described microprocessor input end, and described option input key connects the first code translator input end, the described numerical value input keyed jointing second code translator input end, and described microprocessor is exported described gating control signal.