Digital proofing technology question and answer

1 What is digital proofing technology?

The digital proofing system consists of a color inkjet printer or color laser printer, a computer and a color correction system StarProof. The color gamut of a color printer is wider than the color gamut of conventional printing proofing, and the color correction system can completely correct the color to the extent of printing. Digital proofing technology is a technology that uses a color printer to simulate the color of proofing.

2 Why choose Epson inkjet printers?

Epson series inkjet printers are fast, wide color gamut, stable ink color, excellent after-sales service, and a wide sales network. They are ideal digital proofing equipment.

3 Why Apple Computer G4/450DP?

Digital proofing requires fast speed, stable system, and strong anti-piracy performance. G4/450DP is a dual-CPU Apple computer with high speed and stable system. From the actual operation point of view, this computer is the first choice for digital proofing computers.

What are the two important conditions that must be met for digital proofing?

A color proofing color four-color printing machine must be easy to catch up.

Since B is the first digital proofing piece, the graphic of the film must be consistent with the digital proofs.

5 Why is the cost of digital proofing lower than traditional proofing?

A. There are too many people in traditional proofing; digital proofing can be used as proof.

B. Traditional proofing takes up too much space; digital proofing can be as simple as 15 square meters.

C. Traditional proofing equipment is too much, too expensive, too much depreciation; digital proofing equipment is cheap.

D. The supplies for traditional proofing are too much and not cheap; digital proofing supplies are paper and ink.

6 Why is digital proofing fast and why is the color stable?

Digital proofing without imposition, copying, developing, printing on the plate, rubbing water, overprinting, inking, washing ink, do not have to worry about temperature, humidity, do not have to bear the heart, ink, do not worry about inaccurate, color cast and each There is a difference in color. Traditional proofing is due to the fact that it is hand-inked, which can cause uneven color, and the color of several proofs is inconsistent. The digital proofing is due to the computer's precise control of the color inkjet printer. As long as the correct color curve is selected, the proofing color will remain the same at any time.

7. What are the main advantages of comparing the StarProof system with other digital proofing systems?

A. Color correction is easy. Colors can be easily calibrated without using a spectrophotometer.

B Since the system is connected to the imagesetter, digital proofing is performed using the file data interpreted by the imager RIP. After the proofing customer is satisfied, the RIP-interpreted file data can be exposed and the film can be developed. Since only RIP is used once, it can be guaranteed. The film is consistent with the proofing. The use of linearization data from the RIP imager is the reason why the color is easy to correct.

8 What are the benefits to the customer after the first proofing?

A can first check the hair piece is not wrong, reduce customer waste.

B. Advertising companies can first show the customer the exact design results before the film, to avoid the past a design draft repeatedly proofing, waste of human and material resources.

C. Cost Savings: A 16K four-color sample is about 65 yuan for a recent proofing in Beijing, and the price for a digital proofing product from Shangpin is 50 yuan, and before the release of the product, the customer sees an accurate color sample, saving the customer money. A lot of costs.

D  save time: In the past, the customer had to run 2 samples, and it took a long time. Now a small amount of digital proofing is preferable to filming, and you can see the sample first, then find the mistakes in time, avoid losses and save time.

9 What are the benefits of exporting StarProof digital proofing system to the output center?

In the past, the output center was sent to the professional company for proofing. Often, due to problems with proofing or errors in the production, the customer did not pay the bills, causing great losses and offending the customer. With digital proofing, proofing can be done first, and then the client can sign the sample and make a guarantee that it will not make mistakes. That is to say, the customer can not be guilty of the quality and time. After the purchase of the digital proofing system, the proofing price drops, attracting a large number of customers and driving the customer. The increase in the number of hair pieces. The price of digital proofing system can be controlled within 15 to 200,000 yuan, and the output center can recover the investment cost within six months.

What are the characteristics of 10 inch digital proofing paper and why do you use this type of paper for digital proofing?

Digital proofing paper is a type of imitation copperplate paper, which is very similar to coated paper and is a digital proofing paper that works well. In addition, Beijing Shangpin Plate Making Co., Ltd. is developing and producing a double-sided imitation copperplate paper. Due to the fact that in the past, traditional proofing was generally used for proofing coated paper, and coated paper was also commonly used for printing. Therefore, the use of imitation copper paper digital samples and traditional printing is very close.

11  Digital proofing Why do customers welcome and printers are skeptical?

Because digital proofing is cheap, fast, stable, and error avoidable, it has been widely welcomed by customers. Because the printing factory had previously received some customers who had printed with inkjet printing, the printing factory could not catch up with the uncorrected color inkjet samples. While digital proofing is a calibrated inkjet sample, printers are afraid to catch up with color responsibility, so they are skeptical and inconsistent with digital proofing. Some bold printers will find it easy to catch up with digital proofing. The business has soared.

12 What is the situation with digital proofing in Taiwan?

Since the StarProof system was first applied in Taiwan, 80% of the Taiwanese platemaking plants now use digital proofing.

13 Why use color correction?

Since the color correction of small color blocks is likely to cause color interference and the color is not good, comparing colors with large color blocks will be very accurate. To avoid color interference, use a white paper to cut a small hole over the color block to compare colors.

14 Why is it easy to calibrate colors using data from the RIP of the imagesetter?

Because the image-setter has been linearized by the RIP during the development of the film, that is, if the linearization is not performed when the film is produced, the film will cause a dot expansion, and the linearization is to use the computer's correction software to expand the dot and lower the computer. The set color data is accurately displayed on the film. Using the RIP data of the imagesetter means that the linearization data of the imagesetter is used, so that the color of the inkjet printer is already closer to the printing sample, and some fine adjustments can be made to be consistent with the printing samples.

15  Why do you want to be the color patch at the first 100% C, M, Y, K?

C, M, Y, and K are the basic colors. Since the color of the inkjet ink is different from the printing ink, the four basic color 100% color patches must be calibrated before the other color blocks can be studied.

16 Why are the superimposed color blocks such as CM, CY, and CMY not correct after the four colors C, M, Y, and K are calibrated?

Ink-jet printing two-color, three-color, four-color superposition is a dot superposition; printing two-color, three-color, four-color superposition is dot overlay. Even after C, M, Y, and K colors are calibrated, the CM, CY, CMY, and other overlay color samples and print samples will differ. Two color printing blocks and color spray color meters will be measured by spectrophotometer will give different measurement data, mainly due to different stacking methods, so the use of spectrophotometer calibration color inkjet sample is consistent with the printing sample is very difficult.

17 Will traditional proofing and offset printing cause network expansion?

Film can be used when the computer can control the dot expansion of the film to be very good, but the dot printing and offset offset printing is difficult to control, dot expansion and printing ink, paper, temperature, humidity and press pressure and so on.

Will 18-point digital proofing result in network expansion?

Digital proofing is produced by ink jets, and dot gains are generally small.

19 What are the three steps of the StarProof Color Correction System?

The color of the patch at the first step of school C, M, Y, K100%.

The second step CM, CY, CK, CMY, ... CMYK superimposed 100% color patch color.

The color of the 15th group in the third step is 10% to 90%.

If the 150 color blocks are calibrated, the digital samples and printing samples will be basically the same for any customer. Unlike some color correction software calibration of a map, but other colors of the figure is not allowed.

20 What are the features of the StarProof Color Correction System?

a. There is a function to calibrate the color of C, M, Y, K100%

b. There is the function of adjusting the color of CM, CY, CK, CMY, ... CMYK superimposed 100% at the same color as the printing sample.

c. There are functions to adjust network expansion to expand the analog printing network.

21. Why does StarProof Digital Proofing System only RIP once?

Other digital proofing systems are composed of non-illusionsetter RIP plus color management system. After digital proofing, PS files are sent to the RIP of the imagesetter for interpretation. As explained twice, the two interpretations cannot be 100% guaranteed to be consistent, resulting in inconsistent filming and proofing. As long as it happens once, it will cause great loss to the customer. The StarProof system is a digital proof using the RIP data of the imagesetter. Therefore, there is no inconsistency between the picture of the film and the graphic of the digital proof. RIP is the biggest feature of the system at one time, and it is also why it is superior to other digital proofing systems.

22  Is the digital proof generated by the StarProof digital proofing system exactly the same as that of the film? Is there a quality inspection department?

a. Digital proofs are exactly the same as those of the film.

b. If the film is not overprinted, there are scratches, the photo film produced by the photo-setter, and the developing machine, the digital proofing cannot be checked.

c. The quality inspection department must be set up to check whether the film is overprinted accurately. Check the film for scratches, dirty spots, the density of the film, and whether the outlets are qualified or not.

23. With which photocopying system can StarProof digital proofing system be networked?

a.Harlequin script works RIP

b.Agfa Taipan RIP

c.Dainippon Screen Pixel Stream Imposition Workflow

d. Any 1-bit TIFF compression format produced by the following system

·CCITTG4·CCITTG3 ·CCITTHuffmanRLE·Packbits ·Soon, StarProof will support any kind of TIFF compression format

24. What is the workflow for using the StarProof Digital Proofing System?

Like the hair piece, first make the file into a PS file, explain the PS file on the imagesetter computer, set the TIFF format after the completion of the explanation, generate a TIFF file, pass it to the Mac on the StarProof software, and set the file print on the Mac. Curve, print can produce digital proofs. After the digital proofing is approved by the customer, the TIFF file in the existing computer is then pulled into the print queue of the imagesetter. The hair piece setting is selected to expose the film and ensure that the image of the film is exactly the same as the digital proofing image.

25 What are the printing devices that the StarProof Digital Proofing System can accept?

EPSON Series