Specifications: L-size paper and print cartridges, 148mmX100mm; packaging: 50 X4 package; 200 / box on the application: Mitsubishi CP30W/CP30DW/CP31W image printer
Price: 1,500 price: 1,500
Sunday, 5 October 2008
Mitsubishi video printer CP30W
The new print head with high-performance DSP control engine combination to ensure that the print clear and sharp image. CP30W have a realistic prints, you can print out the image quality of digital photos. Printing paper, the ribbons have been put into operation in the machine The completion of the front. When the printer when not in use, the control panel can be cleverly incorporated in the host, simple and convenient LCD and LED status display and navigational features help to set, medical personnel can easily use, excellent performance and quality can be To meet a variety of medical needs. Easy to use simple: control panel can be neatly incorporated in a variety of functions within the host buttons are easy to set up a tight control panel, control panel for the built-in type, after the completion of the operation can be Accepted by the host, do not have to worry about the remote control misplaced. User-friendly front panel design of the browser and operating in 16 words × 2 line LCD screen to set LED status display, in order to function in the browser. Can view the side of the LCD, Side of the control panel for easy configuration settings required, even if this machine will be placed within the rack. Can clearly see the browser function and status LED display location, lack of paper can state at a glance. In accordance with the basic operation Twisting at the front of the printer, clear and easy to see MEMORY (storage), PRINT (print) and MONITOR (monitoring) and the buttons are not separate buttons for frequently used settings, in a very prominent position. A series of weather, excellent light-fastness Medium-coated COATING medium shelf-life of silver halide photographs with almost long, even if exposed to sunlight or under fluorescent lamps will not fade or contaminated hands. In addition, the standard color medium migration also significantly reduced. With high-volume 32MB memory 8 of the high-volume 32MB RAM memory to support high-speed read and write, even in print, can be stored for printing the images can be stored up to eight images. Print function on many occasions to expand the scope of application of the printer 2 or 4 split-screen many times Print features NTSC / PAL composite signal system automatically detects the automatic detection saved the trouble of switching operation, and a master printer with the NTSC / PAL standard interface. The best medical image printing users can easily color adjust and complete the fine curve of γ Of. Imagery provides a wide range of settings, specially designed for endoscopy, ultrasound systems, such as medical equipment. In addition, the device also supports simultaneous stroboscopic retinal camera instrument functions at the same time support a good RS232C interface and foot switch. Soft, low-noise design, the use of places in the hospital told the cooling fan control, and improved thermal design. Because of greatly reduced at the time of printing machinery noise movement, this type of action than the previous model noise reduction of about 6 db (standby time).
Sony UP-D74XRD DICOM digital film printers
SONY proud to introduce the compact size of the UP-D74XRD digital film printers, it can print X-ray, CT and magnetic resonance imaging (MRI) diagnostic imaging system. UP-D74XRD printer supports 8 × 10 inch blue film and thermal heat Min printing paper, the quality of photos provided by the effect of film output, 512 of the color gray print. It's a sony dry thermal printing technology. Extremely beneficial to environmental protection. UP-D74XRD printers equipped with a USB interface and DICOM . Through the front panel to choose manually. In recent years. DICOM radiology technology in the rapidly growing network to deal with most of the image files are used DICOM format. DICOM interface and can also link with other systems, such as PACS (picture archiving and Communication systems) and HIS (Hospital Information System). UP-D74XRD reasonably priced printers. Can be used to optimize the resolution for printing pictures, especially suitable for low-cost. Entry-level system, such as X-ray, XT and CT and magnetic resonance imaging ( MRI). UP-D74XRD printers will facilitate a lot of features into a compact body, is a variety of medical applications. Performance: the quality of super-class image reproduction UP-D74XRD used sony direct thermal printing technology 300dpi print about the high-resolution, with a photo image quality. The support of the printer 8X10-inch blue thermal film and thermal printing paper, can be used in a variety of medical applications. The latest development of the blue thermal film for sony UP-D74XRD developed a specialized printer UPT-736BL blue thermal film. To be able to X-ray images clearly again. UPT-736BL blue thermal film has a 3.0 optical density, which is equivalent to silver halide X-ray film, but also To provide the minimum, maximum density level (0.2/3.2), to avoid the impact of the doctors X-ray image analysis of the diagnosis. Thermal printing paper UPP-725 thermal printing paper can reproduce the quality of super-class monochrome image in order to clear X-ray images To look at the trial. DICOM support and high-speed USB (USB.2) interface UP-D74XRD equipped with a USB interface and DICOM interface, they can be high-speed data transmission to the external drive. Interface of the two can be used on the front panel of Window menu selection. Suitable for high-speed printing at the time of the application in use, UP-D74XRD print 8X10-inch image with about 40 seconds. Gamma curve settings can be changed UP-D74XRD printer can store 5 gamma curve, including Blue thermal film for the thermal print media and four variable gamma curve. Can store a total of 10 gamma curve, the user can accurately reproduce the needs of gray-scale contrast. Gamma curve according to this image Related to the special call automatically. Anterior UP-D74XRD operation is designed to operate and maintain very simple. All the important keys to control, as well as convenient to read LCD screen are located on the front panel, users can easily observe Print function. Environmental Design UP-D74XRD used sony dry printing technology, print media not to use liquid chemicals or heavy metals (such as silver) components. Eliminate the need for users to dispose of chemical waste problem. Small size, light weight of the Design UP-D74XRD small, only 412X210X531mm, as the weight of 16KG. It does not highlight any part, even in the height can also be installed. General of the World's power supply UP-D74XRD printers use AC100V to 240V power supply for operation in the whole The use of the world.'s Easy to check this medium can be used equipment on the tray with a wide range of small media window, the user can check the film or paper can be used to print the number will be no need to open the tray.
Sony SONY UP-20 dye-sublimation printers, video
Sony UP-20 is as a result of the low price and the success of the combination of high-quality full-color printers, printing A6-size color images only about 16 seconds (UPC-21S the use of printing paper, high-speed mode). Printer appearance of the new compact and easier to use to connect to other video machines. Sony UP-20 in the field of health care, office or laboratory applications of scientific research is an ideal choice.
Price: 16,500 price: 16,500
Price: 16,500 price: 16,500
Sony SONY UP-21MD color video dye-sublimation printers
Sony UP-21MD printer is the endoscopic ultrasound diagnosis and the application of the most desirable option. The new Sony color video printer is compact frame provinces to give health care more space to use. Only 212mm wide and easier to connect with other video machines, or close to the side by side with other machines on the shelves of medical vehicles. Despite the small, but the UP-21MD printer can be used to provide a variety of functions. UP-21MD the use of dye-sublimation printing technology SONY, about 400DPI resolution A6-size print format only 20 seconds (the use of printing paper UPC-21L).
Price: 20,300 yuan price: 20,300 yuan
Price: 20,300 yuan price: 20,300 yuan
The printer purchase and maintenance
Classification - three models
There are various types of printers, is the choice of needle, laser or inkjet printer depends on the specific use. In general, use the stylus printer cost is relatively low; from the print quality and speed, ink-jet and laser printers are much better than stylus printer. Stylus printer is a special place where it can print multi-layer paper, printing paper only in the selection of stylus printer, to put up with some of the noise. However, in our home users of personal choice, it would generally be excluded.
Good quality laser printer, printing costs are also lower than the ink-jet printers. But more expensive laser printers, at least take a few thousand dollars, or even million, several million are not unusual, but in general most black and white (very high-color) can not print color documents. The ink-jet printers from all the high-end to low-grade, suitable for a variety of levels. The average family to buy low-to mid-range inkjet printers and more. So here we are focused on the ink-jet printer to buy the brand and knowledge.
Brand - one-third of the world
Ink-jet printers in the domestic market are Canon, Epson and Hewlett-Packard three, individual characteristics of each printer. From the print image quality, mid-range of low (for family) in the printer to Epson printers for the good; from the cost of printing, Canon's slightly lower. From a technical point of view principle, Hewlett-Packard and Canon is used in bubble-jet printing technology, characterized by more mature technologies, the head of the lower cost of production and use of color cartridge nozzle design, for the DIYer who, directly It is easy to increase the benefits of casual Mexican. However, the technology of its decision to print resolution (dpi) can not be very high. But Hewlett-Packard and Canon have adopted a number of resolution enhancement technology (PhotoREt, adjusted drop, multi-color control, etc.), to a large extent made up for this deficiency, the user can not be too concerned about the actual value dpi. Epson used its unique micro-voltage control technology, which is characterized by easy reach of high-resolution printing (720dpi and 1440dpi), with its unique ink technology, can improve the effectiveness of photo printing. But the disadvantage is that its head is too sophisticated and protective measures are not effective, easy to improper use of a failure. In addition the cartridges separation nozzle design, so if the use of non-original ink need to address.
Use - a variety of factors affect the quality of
The depth of color printing control, provided by the manufacturer of color paper and printing quality will have an impact. Color depth control of different images, the more levels, more realistic effect of different vendors to provide the color print of the image is different; paper of different image quality will lead to great differences. As the special paper and printing paper price vary greatly in general, the general in print before the official releases there is no need to use special printing paper.
In addition, the printer cartridges are also affecting the quality of printing. Caipen upscale image than the excellent mid-range aircraft, mainly due to more use of color ink. Printer to print out colorful graphics are different colors mixed into the ink. Is the first of three color mixed, but the result was not good, then use the green, yellow, magenta and black four-color, the color of the control strengthened, and professional print, but not compared to the results, then combined with TANSEI , One of two color magenta light to improve the effectiveness of the region.
For individual users, color ink-jet printer to buy the times, it is easy to lose sight of the cost of using the printer problem. In fact, this issue is very important, imagine you bought a printer to print 10 will be spending a cartridge, and an original ink to spend more than 100 yuan, strange if you do not feel bad.
To reduce the cost of printing there are many methods, such as: text and images were used to separate black and white and color print cartridges, does not apply to this method now widely used in color graphic documents Mixed; using plain paper printing, although the effect will almost , But not as long as an official document, not a big problem; the use of re-injection of ink can greatly reduce the cost of printing, but the resulting problems are not factory warranty, must think twice before taking any action.
To buy - must be value for money
Have a thousand dollars or so to go home Caipen can not pick a pair of slippers. Do not have to value for money, but it must be value for money. Caipen low price at 900 yuan for some of the images do not require too high, some of the occasional fight color of the user works. If you require a higher output image, the choice Caipen mid-range price of about 1,500 yuan. Caipen is the real high-end photo printer level, is the first choice for fine arts workers, the effect can be comparable with the laser printer.
For individual users, Caipen the printing speed is not important is the need to pay attention to the quality of printing and printing costs. The Canon cartridges are ultra-high-capacity and print the economy; in the Epson print quality is excellent; Hewlett-Packard emphasized in the ordinary print photos on paper to achieve the output level.
900 yuan a file of the printer has its own unique features, though less expensive, but the print is not satisfied with the photos; mid-1500 yuan or so although there are some mixed images and moving images like a minor point. But for non-professionals to say, enough satisfied.
It has been estimated that Hewlett-Packard, the world of full-function office equipment needs and market potential, up to 144 million dollars. The large staff of the home, SOHO caused by the growing family of the prosperous and thriving. From the history of the evolution of science and technology, the machines more integrated functions, saving the user more time to become inevitable.
There are various types of printers, is the choice of needle, laser or inkjet printer depends on the specific use. In general, use the stylus printer cost is relatively low; from the print quality and speed, ink-jet and laser printers are much better than stylus printer. Stylus printer is a special place where it can print multi-layer paper, printing paper only in the selection of stylus printer, to put up with some of the noise. However, in our home users of personal choice, it would generally be excluded.
Good quality laser printer, printing costs are also lower than the ink-jet printers. But more expensive laser printers, at least take a few thousand dollars, or even million, several million are not unusual, but in general most black and white (very high-color) can not print color documents. The ink-jet printers from all the high-end to low-grade, suitable for a variety of levels. The average family to buy low-to mid-range inkjet printers and more. So here we are focused on the ink-jet printer to buy the brand and knowledge.
Brand - one-third of the world
Ink-jet printers in the domestic market are Canon, Epson and Hewlett-Packard three, individual characteristics of each printer. From the print image quality, mid-range of low (for family) in the printer to Epson printers for the good; from the cost of printing, Canon's slightly lower. From a technical point of view principle, Hewlett-Packard and Canon is used in bubble-jet printing technology, characterized by more mature technologies, the head of the lower cost of production and use of color cartridge nozzle design, for the DIYer who, directly It is easy to increase the benefits of casual Mexican. However, the technology of its decision to print resolution (dpi) can not be very high. But Hewlett-Packard and Canon have adopted a number of resolution enhancement technology (PhotoREt, adjusted drop, multi-color control, etc.), to a large extent made up for this deficiency, the user can not be too concerned about the actual value dpi. Epson used its unique micro-voltage control technology, which is characterized by easy reach of high-resolution printing (720dpi and 1440dpi), with its unique ink technology, can improve the effectiveness of photo printing. But the disadvantage is that its head is too sophisticated and protective measures are not effective, easy to improper use of a failure. In addition the cartridges separation nozzle design, so if the use of non-original ink need to address.
Use - a variety of factors affect the quality of
The depth of color printing control, provided by the manufacturer of color paper and printing quality will have an impact. Color depth control of different images, the more levels, more realistic effect of different vendors to provide the color print of the image is different; paper of different image quality will lead to great differences. As the special paper and printing paper price vary greatly in general, the general in print before the official releases there is no need to use special printing paper.
In addition, the printer cartridges are also affecting the quality of printing. Caipen upscale image than the excellent mid-range aircraft, mainly due to more use of color ink. Printer to print out colorful graphics are different colors mixed into the ink. Is the first of three color mixed, but the result was not good, then use the green, yellow, magenta and black four-color, the color of the control strengthened, and professional print, but not compared to the results, then combined with TANSEI , One of two color magenta light to improve the effectiveness of the region.
For individual users, color ink-jet printer to buy the times, it is easy to lose sight of the cost of using the printer problem. In fact, this issue is very important, imagine you bought a printer to print 10 will be spending a cartridge, and an original ink to spend more than 100 yuan, strange if you do not feel bad.
To reduce the cost of printing there are many methods, such as: text and images were used to separate black and white and color print cartridges, does not apply to this method now widely used in color graphic documents Mixed; using plain paper printing, although the effect will almost , But not as long as an official document, not a big problem; the use of re-injection of ink can greatly reduce the cost of printing, but the resulting problems are not factory warranty, must think twice before taking any action.
To buy - must be value for money
Have a thousand dollars or so to go home Caipen can not pick a pair of slippers. Do not have to value for money, but it must be value for money. Caipen low price at 900 yuan for some of the images do not require too high, some of the occasional fight color of the user works. If you require a higher output image, the choice Caipen mid-range price of about 1,500 yuan. Caipen is the real high-end photo printer level, is the first choice for fine arts workers, the effect can be comparable with the laser printer.
For individual users, Caipen the printing speed is not important is the need to pay attention to the quality of printing and printing costs. The Canon cartridges are ultra-high-capacity and print the economy; in the Epson print quality is excellent; Hewlett-Packard emphasized in the ordinary print photos on paper to achieve the output level.
900 yuan a file of the printer has its own unique features, though less expensive, but the print is not satisfied with the photos; mid-1500 yuan or so although there are some mixed images and moving images like a minor point. But for non-professionals to say, enough satisfied.
It has been estimated that Hewlett-Packard, the world of full-function office equipment needs and market potential, up to 144 million dollars. The large staff of the home, SOHO caused by the growing family of the prosperous and thriving. From the history of the evolution of science and technology, the machines more integrated functions, saving the user more time to become inevitable.
Examples of printer paper fault maintenance
Stylus printer printer paper is the branch of the stylus printer is also an important applications, mainly in the banking, insurance, industrial and commercial tax and securities industry. This printer has a simple, low-cost printing, mature technology and so on. And other office equipment, due to the frequent use of printer paper and more prone to failure, especially in the first print mostly failure. The following for you to print the first control problems with the drive circuit failures.
The first print control and drive circuits caused by the failure of the main phenomenon in three respects: First, the odd or even number needle acupuncture needles can not, the result is a character printing / severely deformed characters; Second, a number of print for a needle or pin or some individual Print print when no needle injections, the result is a print character / characters of the regular shortcomings less draw, that is, his character / characters in one or more white lines, as well as print characters / character point line together, that is, his character There are one or a few black lines, there will be serious when printing pin was to hang up. Third, we can not print all the needle acupuncture, print the page does not print writing.
First, print head fault control and drive circuits of the reasons
It should be said that various models of printer paper in the overall design is not very different, but some of the specific printer paper and the structure of the circuit is still a certain degree of difference. Therefore, the following general analysis of the first and the reasons for these failures.
1. Acupuncture needles can not print all print
All-pin printer to print bills in print when the needle was not printed, printing was mainly attributable to needle driver coil no incentive to exert high pressure so that the needle does not print the driving force rather than a needle. In addition, some bills have a specially designed pin printer data to form circuits, such as DLQ-2000K, if the first print driver HPW pulse signal failure, the needle will be unable to print to be inspired and the emergence of high-pressure needle can not print all the print needle phenomenon . Another example is the OKI-5330SC printer paper, and is to SERIALCLOCK-N signal synchronization of serial data SERIALDATA-N into the first printing of the needle parallel data signal HEADDATAl ~ 24, SERIALCLOCK-N or SERIALDA-TA-N signal failure , The needle can not print all the print needle.
2. Odd or even number needle acupuncture needle can not print
Some printers, the print head control and drive circuits designed to allow odd-numbered pin signals and even allow the signal pin. In such a design of the printer, only when the signal to allow effective needle odd, odd-numbered pin will it be possible to print out the needle; and even when the juice to allow an effective signal, the needle can even print out the needle. If the odd or even number needle acupuncture needle can not print, testing should be odd or even-numbered pin pin signals whether or not to allow normal. Such as OKI-5330SC, the print head control and drive circuits designed to allow odd-numbered pin signal ODD-EN needle and even allow the signal EVEN-EN.
3. Print part of the individual or needle acupuncture can not print
When the needle to form the data circuit (or circuits dedicated gate array) and circuit Driven pin print individual devices in a part of the damage, it will cause a partial or no acupuncture needle printing individual print. In some printer paper, the incentive is a sub-four-way high-pressure needle to the print driver provided by the coil (such as the AR-5400, AR-6400 paper in the printer to print can be divided into four needle coil incentive to exert high pressure, and the Lexmark 2391Plus paper in the printer is Fensan Lu-pin printer driver for the module to provide the high-pressure). In this form of circuit, which damaged all the way from those it provides high-voltage pin (6 or 8) will not be able to print out the needle. In general, when the printer paper in the print process, the rules have less to 6 or 8-pin failure of this phenomenon, it is possible that this is three or four in a road damage. Therefore, in this type of examination fault circuit should be based on the specific printer paper's print pin driver circuit analysis and testing, the last to find out the damage to the device and be replaced. In addition to print output in the first cable outlet will also be bad for the first printing of individual print needle acupuncture can not print.
E05A02LA chips used in acupuncture as a form of data circuits DLQ-2000K printer paper, as a result of E05A02LA chip 8-line data entry in each of the 3 controls the printing of the needle-pin data signals (E05A02LA chip specific analysis of the circuit, see the back Examples of the circuit), when the machine interface circuit of the 8-bit data input line in a certain way (break) or short-circuit, with its corresponding 3-pin will not be able to pin out of print, print out the character / characters The three will appear on the white lines; 3-pin or needle in a row out of print, print out the character / characters appear on the three black lines (printing Chinese characters at this time will not be accompanied by on-line print, but when a lot of self-print Needle. Therefore, this inspection should also be noted that failure to check their interface circuit).
Second, the print head control and drive circuits to deal with examples of failure
One example: DLQ-2000K printer self-test paper when printing print character shortcomings less draw
Trouble is: DLQ-2000K self-printing paper when the printer to print out shortcomings characters few designated incomplete.
Troubleshooting: The characters from the print / draw characters fewer disadvantages of this phenomenon, caused by failure of the reasons there may be four: first, the print head to print a broken needle; Second, the print driver needle coil or open burn ; The third is to connect the first printing of the decapitation appeared on cable or plug and socket between the individual bad pins; fourth, the first print driver and control panels have a failure. First of all, with the first printing Duanzhen testing procedures to test for the first print out the needle print, the results measured, 5,13,21 needle acupuncture can not print. The following steps according to the diagnosis and rule out:
① power to close the printer, the word will be moved to the car in the middle, followed by ribbon cartridge removed and the first print from the print head in front of the first print-oriented on-board inspection whether Duan Zhen, the results have not found Duan Zhen.
② multimeter with carefully measuring each print head of the DC coil resistance, the resistance value measured in line with the normal value.
③ check printing in the first cables to connect the pins is bad, no problem. Open the top printer from the printer to print on the right side of the first cable outlet on the board off three flat cable, pen table Multimeters the two were up in the search cable (a total of three cables, two wide print head for the cable, the most The sensor is a narrow ribbon and the motor-driven cable signal) corresponds to the two ends of the line, measuring its resistance value is zero, the measured results of the short-pin cable to connect the first group of 9 broken foot, the same model with a flat cable replacement After troubleshooting.
Failure Analysis: DLQ-2000K printer paper's print head pin short drive coil group is the first line of 9-pin, 5,13,2 l coil power of public input side, which is the root along the printer cable is directly outside the rack In a special plug socket, 3 of the cable outside and covered with a piece of metal protection. As the rack, and the most short-pin cable group coil obvious contact with the lower end of the edges and corners, just stuck the cable bending parts. Long-term friction will be the first cable 9 mill off-line, which would result in serious root on the line to short-circuit, that is, +35 V power supply side of the rack to short-circuit the whole circuit of the master printer paper work.
The first print control and drive circuits caused by the failure of the main phenomenon in three respects: First, the odd or even number needle acupuncture needles can not, the result is a character printing / severely deformed characters; Second, a number of print for a needle or pin or some individual Print print when no needle injections, the result is a print character / characters of the regular shortcomings less draw, that is, his character / characters in one or more white lines, as well as print characters / character point line together, that is, his character There are one or a few black lines, there will be serious when printing pin was to hang up. Third, we can not print all the needle acupuncture, print the page does not print writing.
First, print head fault control and drive circuits of the reasons
It should be said that various models of printer paper in the overall design is not very different, but some of the specific printer paper and the structure of the circuit is still a certain degree of difference. Therefore, the following general analysis of the first and the reasons for these failures.
1. Acupuncture needles can not print all print
All-pin printer to print bills in print when the needle was not printed, printing was mainly attributable to needle driver coil no incentive to exert high pressure so that the needle does not print the driving force rather than a needle. In addition, some bills have a specially designed pin printer data to form circuits, such as DLQ-2000K, if the first print driver HPW pulse signal failure, the needle will be unable to print to be inspired and the emergence of high-pressure needle can not print all the print needle phenomenon . Another example is the OKI-5330SC printer paper, and is to SERIALCLOCK-N signal synchronization of serial data SERIALDATA-N into the first printing of the needle parallel data signal HEADDATAl ~ 24, SERIALCLOCK-N or SERIALDA-TA-N signal failure , The needle can not print all the print needle.
2. Odd or even number needle acupuncture needle can not print
Some printers, the print head control and drive circuits designed to allow odd-numbered pin signals and even allow the signal pin. In such a design of the printer, only when the signal to allow effective needle odd, odd-numbered pin will it be possible to print out the needle; and even when the juice to allow an effective signal, the needle can even print out the needle. If the odd or even number needle acupuncture needle can not print, testing should be odd or even-numbered pin pin signals whether or not to allow normal. Such as OKI-5330SC, the print head control and drive circuits designed to allow odd-numbered pin signal ODD-EN needle and even allow the signal EVEN-EN.
3. Print part of the individual or needle acupuncture can not print
When the needle to form the data circuit (or circuits dedicated gate array) and circuit Driven pin print individual devices in a part of the damage, it will cause a partial or no acupuncture needle printing individual print. In some printer paper, the incentive is a sub-four-way high-pressure needle to the print driver provided by the coil (such as the AR-5400, AR-6400 paper in the printer to print can be divided into four needle coil incentive to exert high pressure, and the Lexmark 2391Plus paper in the printer is Fensan Lu-pin printer driver for the module to provide the high-pressure). In this form of circuit, which damaged all the way from those it provides high-voltage pin (6 or 8) will not be able to print out the needle. In general, when the printer paper in the print process, the rules have less to 6 or 8-pin failure of this phenomenon, it is possible that this is three or four in a road damage. Therefore, in this type of examination fault circuit should be based on the specific printer paper's print pin driver circuit analysis and testing, the last to find out the damage to the device and be replaced. In addition to print output in the first cable outlet will also be bad for the first printing of individual print needle acupuncture can not print.
E05A02LA chips used in acupuncture as a form of data circuits DLQ-2000K printer paper, as a result of E05A02LA chip 8-line data entry in each of the 3 controls the printing of the needle-pin data signals (E05A02LA chip specific analysis of the circuit, see the back Examples of the circuit), when the machine interface circuit of the 8-bit data input line in a certain way (break) or short-circuit, with its corresponding 3-pin will not be able to pin out of print, print out the character / characters The three will appear on the white lines; 3-pin or needle in a row out of print, print out the character / characters appear on the three black lines (printing Chinese characters at this time will not be accompanied by on-line print, but when a lot of self-print Needle. Therefore, this inspection should also be noted that failure to check their interface circuit).
Second, the print head control and drive circuits to deal with examples of failure
One example: DLQ-2000K printer self-test paper when printing print character shortcomings less draw
Trouble is: DLQ-2000K self-printing paper when the printer to print out shortcomings characters few designated incomplete.
Troubleshooting: The characters from the print / draw characters fewer disadvantages of this phenomenon, caused by failure of the reasons there may be four: first, the print head to print a broken needle; Second, the print driver needle coil or open burn ; The third is to connect the first printing of the decapitation appeared on cable or plug and socket between the individual bad pins; fourth, the first print driver and control panels have a failure. First of all, with the first printing Duanzhen testing procedures to test for the first print out the needle print, the results measured, 5,13,21 needle acupuncture can not print. The following steps according to the diagnosis and rule out:
① power to close the printer, the word will be moved to the car in the middle, followed by ribbon cartridge removed and the first print from the print head in front of the first print-oriented on-board inspection whether Duan Zhen, the results have not found Duan Zhen.
② multimeter with carefully measuring each print head of the DC coil resistance, the resistance value measured in line with the normal value.
③ check printing in the first cables to connect the pins is bad, no problem. Open the top printer from the printer to print on the right side of the first cable outlet on the board off three flat cable, pen table Multimeters the two were up in the search cable (a total of three cables, two wide print head for the cable, the most The sensor is a narrow ribbon and the motor-driven cable signal) corresponds to the two ends of the line, measuring its resistance value is zero, the measured results of the short-pin cable to connect the first group of 9 broken foot, the same model with a flat cable replacement After troubleshooting.
Failure Analysis: DLQ-2000K printer paper's print head pin short drive coil group is the first line of 9-pin, 5,13,2 l coil power of public input side, which is the root along the printer cable is directly outside the rack In a special plug socket, 3 of the cable outside and covered with a piece of metal protection. As the rack, and the most short-pin cable group coil obvious contact with the lower end of the edges and corners, just stuck the cable bending parts. Long-term friction will be the first cable 9 mill off-line, which would result in serious root on the line to short-circuit, that is, +35 V power supply side of the rack to short-circuit the whole circuit of the master printer paper work.
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