Multifunctional automatic plate making system
The invention belongs to technical field of computer information processing.Thermal printer is simple external unit as a kind of computing machine at present, can only be used for general office automations such as printing (seeing Chinese information processing technology one book chapter 5 the 4th joint of Yuhang Publishing House), fast development along with electronic technology, the resolution of thermal head has now reached 400 line/inches, the present invention uses it as the plate-making equipments of recording, realizes the whole operation process.The present invention seeks to increase the function of thermal printer, improve the plate-making resolution of mimeograph, realize the plate-making robotization.It is achieved in that the watchdog routine ROM on the control card, deposits the compatible various Chinese and western languages operating system print commands commonly used of energy, the program curing that commander's printer carries out exercises; Data buffering RAM deposits the graph text information that requires printing, and character generator ROM is deposited the I and II formed word module information of GB character set.Main frame is after typing, setting type, graph text information is offered the thermal head (the integrated circuit matrix that the thermoelectric element sensor is formed) of inker by control card, inker is under the control card commander, be depicted in graph text information on the thermal stencil incisively and vividly with thermal head, the part of being heated can dissolve the ink bleed hole also littler than needle point, has so just realized the overall process of automatic plate making.With mimeograph printing on the paraffin paper version that makes, printing ink can to the turn of a hair be recorded in graph text information on the paper along the ink bleed hole, has so just finished the overall process of printing.
At present, mimeograph 24 dot matrix electronic typewriters or (computer adds) 24 needle printers of adopting more, machine printing on the system stencil paper version, its advantage is a font specification easy and simple to handle, the plate-making cost is low, but dual-use (print, make a plate), shortcoming is that plate-making resolution is low, have only 180 line/inches, so image is very fuzzy, printing quality is poor, the good and bad key of printing quality is the resolution of making a plate, why laser photo-typesetting has higher printing quality, and its lowest resolution is 742 line/inches, be equivalent to it more than 4 times.Another kind of mimeograph mode adopts the (plate-making of import, printing) integrated duplicating machine claims digital duplicating machine again, it is a duplicating formula programmed control automatic plate making, printing machine, manufacturer is the Gesner of Britain, Ricoh's ideal of Japan, Mortopl etc., be characterized in adopting the main control system of single card microcomputer (microprocessor) as full machine, with the figure of ccd video camera to original copy, image, literal carries out sweep record with graphics mode, then graph text information is passed to main frame, thermal head on the main frame commander platemaking machine is recorded in graph text information on the paraffin paper, through after the program control printing, just become the printing product that both pictures and texts are excellent.This mechanism version resolution is higher, reaches 400 line/inches, and image, literal are all very clear, and advantages such as easy and simple to handle, automatic plate making, automatic printing are arranged, and shortcoming is that font is lack of standardization, can not become block letter to handwritten form; Measure little cost height, 10 parts with interior worthwhile not as good as duplicating machine; Function singleness can only be made a plate, be printed.Compare with 24 dot matrix electronic typewriters and (computer adds) 24 needle printers, the present invention's resolution of making a plate is doubled manyly, and how image and literal have all been known, can reach the same printing effect of integral machine, but also can duplicate.Compare with integral machine, the two plate-making principle is basic identical, the present invention increased beat, copy function, handwritten form original copy, after the keyboard typing, a print command just can obtain the block letter of standard, font is with regard to standard when printing like this.Little as the amount of printing, availablely to beat, the duplicating mode, the seal amount is big, available plate-making, mode of printing, seal amount size no matter, cost is all very low.In sum, the present invention has developed the strong point of the two, has avoided the weakness of the two, and innovation to some extent, marches to robotization, multi-functional field.
Basic configuration of the present invention is a host computer, and control card, thermal printer, ccd video camera are option, can select for use as need input picture, figure, block letter word.The effect of main frame is typing, composing, the whole operation process of control inker.The effect of control card is to explain various print commands, and commander's inker is carried out these orders.The effect of thermal printer has two, one, beats on common paper, duplicates by thermal-printing thin film, and reach the preceding check and correction of plate-making and draw a design, the 2nd, record plate-making on thermal stencil.During printing, load onto thermal-printing thin film and common paper on inker, can be transferred to pigment on the common paper after colour band is heated, as change the colour band of different colours, also can realize colour print, its sharpness doubles many than 24 pin color printers.During duplicating, only need with a ccd video camera figure, image, block letter word input computer, a print command just can obtain the copy of standard.During plate-making, after typing, the check and correction of setting type, draw a design, load onto thermal stencil on inker, a print command just can be realized automatic plate making.