Print and output questions and answers (4)

Q : The prepress computer output 50 should pay attention!
Answer: 1. The level of image scanning is insufficient.
2, image scan ratio calculation error
3, the level of image is not enough to insert, cutting is not accurate.
4, put the wrong image.
5, using a low resolution output.
6. The RGB image is output without transferring CMYK.
7, image decontamination is not complete.
8. Retreat from the ground is not appropriate.
9, no character output.
10, use the wrong type output.
11. Use corrupted character output
12, output damaged manuscript
13, scanning with wrong figure
14, use damaged software as output
15, Black did not do Overprint
16, black field without blue version
17, color version of the output error, four colors out of a spot color, spot color out of four colors
18, To have a negative film but a positive film, or vice versa
19, the output film direction is wrong, the film wants to go up, upwards and downwards
20, similar pictures, scanning is not uniform, multiple redo scanning and output process
21, color correction image correction, to redo the color
22, high light and dark bits during scanning
23, RGB color blocks in the manuscript will not be exported to CMYK
24. The number of outputs is wrong. There are three sets for a set and only three sets for three sets.
25. Repeatedly outputting non-forests that have been exported
26, output scaling error
27, Non-forest size is insufficient, A3 draft used A4 non-forest
28, the horizontal straightness setting is wrong, or choose the wrong Printerdrive
29, the output of the wrong file, to the A draft but the B draft
30. The number of error pages.
31. More pages, page 5, page 5 page 6
32, using the wrong net angle output
33. Use wrong web output
34. Scanning resolution setting error
35. The output density is too high or too low, resulting in too thin or too thin outlets
36, four-color film can not register pin position
37, did not make traps
38, Too much trapping, color between the exposed side
39. Corner needle position only out of the black version
40. Replacement of the color block cannot be registered with the original color plate
41. The scans made by the make-up and the original image are not clipped. To redo the color and output
42, the film machine runs out
43, punching machine scraping non-forest
44. The syrup of the tablets is too thick or too thin, affecting non-forest outlets
45. The temperature of the punching machine is too high or too low, affecting non-forest outlets
46, using the non-forest output that has gone out of light
47. The system is down and the manuscript has been damaged.
48. The system has a virus, damaged manuscripts have been made
49, use damaged MO, optical drive to store images
50. Missing guests' lights, manuscripts, etc.

Q : Shooting output tips!
A: Many people will say that this is impossible. However, using the "partial distribution" function in the Feiteng typesetting system is a breeze. The steps are as follows:

First of all, the color picture (usually small map, small logo) with the "layout" command to "page", and select it with the mouse, and then use the mouse to select "partial distribution" in the file, this time will pop up a dialogue The box “Partially Dispatch” can be clicked on the “OK” in the dialog box. At this time, an information box “Replacing an existing XXX PS 2 file” will appear. Press “Yes” , which completes the layout of the picture.

Secondly, select some of the PS2 files in the PSP distribution, open the “select parameters” dialog box, and select the “CMYK” mode in the color bar. Then open the “Alignment mark” dialog box. The output requires selecting each of the parameters and pressing "OK" to exit. In this way, the PSP distribution system automatically arranges four pictures on a single page in order of “CMYK” according to the size of the picture.

The above techniques are limited to some business cards requiring a small color logo or a color business card to require four sheets of web. If a web page contains a 16-sheet film, this is wasteful. It not only raises the printing cost, but also outputs The cost has also increased.

Two: How to produce positive and negative characters on a film at the same time?

When the customer requests that the output of the negative film has little content and there are gaps in the layout of the positive anti-word, sometimes for the sake of the customer's benefit, I will put the two types of film together to output the same. The request. Because the positive film is used for the offset press, and the negative is used for the resin version, the opposite is true for the two types of film. However, the combination of the two is one thing. It is worth emphasizing that the content of the negative film must be reversed. The text is reversed. These can be done by using a drawing file, and then copying the image file into the file. In the Veish system, fight in its spare position, and then all the contents of the positive film output so that it can be.

Q: The color picture printed on the copper paper of Aerospace Knowledge Magazine is 300PPI. Why is the grayscale image printed on plain paper?

A: The color (four-color) printing 300dpi performance level enough. On the other hand, the grayscale pattern of the inside page of the magazine has characters, etc., in order to prevent the characters from being jagged.

Q: Why do the grayscale images printed in the Journal of Aerospace have to be converted to bitmap printing on the web, and if the size of the image is 1016PPI, why not use the grayscale image directly? (The Chinese Journal of Aeronautical Engineering is all copperplate paper.)

A: When the print version is used, the outlets of the outlets with a particularly small number of outlets (such as 5% of the nets) will fly away. Problems will occur during the printing, and the bitmap will be converted into a bitmap. The same network cable can avoid this problem. Performance requires bitmap resolution is large enough. This is the question of how many nets are linked to the problem of hanging nets and nets (simplely speaking, how many problems are converted into problems with and without).
Q: The question asked seems to be to ensure the clear effect of printing on plain paper. The amount of ink absorbed on plain paper is large. If the number of lines on the film is 175, it is no longer useful. Do you not understand?
A: After some plate-making, especially if a large amount of text typesetting content is to store 600 DPI or more for outputting TIFF, and 300 (or 350 enough) for image detail, 600 DPI should be used to prevent jaggies from appearing.

Q: Is the question asked by some celebrities or what calligraphy? General celebrity mentions or calligraphy high-point scanning after bitmap, I do not know whether this

A: Magazines should not have so many celebrity inscriptions, bitmaps naturally have the advantage of bitmaps (this I say is not very detailed, please add master), 100 lines / cm (should not offset it) resolution corresponding to the resolution The rate is 50 PI, and 1016 = 508 × 2.

Q: There are golden text on the four-color basemap. What should I do in AI? My method is: put a TIF diagram in the AI, after the good version of the gold part fills out blank, and then make a page, in the gold part fill in a 100 solid color, such as K100, (Note: This page is only gold Part, there is no other map) and then the output shows that this version is a special fund, no matter what the pros and cons of doing so, I have done so, please answer! In addition, I would also like to ask, print the color order, spot color is the final printing? If there is a four-color map on a large area of ​​gold, is it necessary to reduce the spotlighting of the spot color to prevent whitening?

Answer: 1. Do not need to make a page, you just need to select a spot color on the line, for example: pantone 871c-pantone 876c (gold), pantone 877c (silver) 2. The order of printing you can say with the printing factory before printing spot color Or print four colors first. It is best to print a color sample for a printing factory and print it for coloring. 3. "If there is a four-color map on a large area of ​​gold, is it necessary to shrink the spotlight to prevent whitening?"

Q: Are these two pantone 871c-pantone 876c gold? Why are two values? Under normal circumstances, is the spot color the last print?

A: Actually, you can ignore the PANTONE number in your computer, but choose a color that is generally close to yours. When printing, specify spot color gold, spot color silver, spot color**, etc. After all, the film is still black and white. Use different inks to print.