Some experiences of PSPNT RIP output
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PSPNT Century RIP has a large market in China, especially in newspapers and publishing houses. In the course of its use, it will encounter various problems. Below we will provide you with some problems and solutions for reference.
MAC output page output method problem
Generally, it is sent to the PSPNT RIP. It can be directly printed into a .PS file when the software is printed. Then, you can find the file to be sent in RIP, select the parameter template to print, or create an automatic distribution folder. The software will time. Find the file in the folder and delete it, but this way the parameter template can't be modified before the release. Files made on the MAC need to be sent in this way, and direct dispatch sometimes makes mistakes.
Page rotation problem
At the time of output, the user often selects the automatic rotation page in the parameter setting, and lets RIP determine whether the page should be rotated. But RIP sometimes makes mistakes. Therefore, when the RIP interprets the page, it is necessary to pay attention to whether the "core (+ mark) size" item of the page displayed in the information window has a one-to-one correspondence with the "output medium size". If you find that the page orientation does not match your requirements, change the selection to "Rotate Page" or "Do Not Rotate Page". In fact, when outputting a page, selecting "Rotate Page" or "Do Not Rotate Page" according to different pages in the parameter template, instead of selecting automatic rotation of the page will reduce many errors.
PageMaker, CoreDRAW and FreeHand output issues
PSPNT RIP can correctly interpret PS files generated by PageMaker. However, when using domestic RIP to interpret PS files generated by Western software, one of the biggest problems is the download of Chinese fonts. For example, when installing PageMaker 6.5c for PC, you first need to install a virtual PS printer for Win 9x, then modify the properties of the printer. In the font column, select "Use TrueType font" and send the font as "bit". Figure". When printing a PS file with PageMaker 6.5c, select "Bitmap" in the "Options" column "Download Chinese Fonts"; if it is a color version, it is best to select "Separate Color Printing" in the "Color" column. In the RIP parameter template setting, you need to select a monochrome template, and all pages are sent, so that a PS file will be automatically divided into four pages for output.
There are two ways to do CoreLDRAW. One method is to export the EPS results and convert all the fonts into curves. Another method is to output the PDF format, but the style should be "PDF for prepress". In the "Object" column, "Text and Font" should select "All text is converted to Curve". Of course, Chinese characters can also be exported to a picture format, but such an edge is not good, and this method is not recommended.
FreeHand software must convert all fonts to curves before exporting, and then export EPS. This way RIP can interpret and output correctly.
Word document output problem
Now there are a lot of users using Word to make the page output, you can print the layout of the layout when printing. PRN file, then select the appropriate template on PSPNT to interpret the .PRN file. However, the color image in Word will have some problems when it is output. It is recommended to download and download the PS driver of Adobe Company, and then use it with a large-format PS printer, and it is better not to use Word to send four-color files. Finally, there is one point to be reminded that Word has no problems on Win98 or WinNT, but normal output cannot be guaranteed on Win2000.
RIP efficiency issues
PSPNT performs a lot of mathematical operations when interpreting PS files, so it requires a large amount of memory on the machine. But if there is not enough memory, the data will be stored in the virtual memory of Windows NT, that is, stored in the hard disk, and the memory access speed is 10 times faster than the hard disk. These intermediate files are parameters that PSPNT needs to call repeatedly. Once stored in the hard disk, PSPNT can work normally, but the speed will be greatly affected.
The PSPNT uses the intermediate dot matrix to store the results of the RIP, and then transfers the bitmap file to the peripherals connected to it, such as the imagesetter. Generally, the size of an intermediate dot matrix file of A4 format (8.5 in.*11 in.) and 2400 dpi before compression is:
8.5x2400x11x2400=64.2(M)
8x1024x1024
The intermediate files that are open and fully open can be calculated using this formula.
Because the entire job requires a lot of access to the hard disk, the speed of the hard disk is critical to the efficiency of the PSPNT. Test data shows that for a PII 300 computer, when using a 7200 rpm SCSI/W hard drive, the PSPNT speed is more than double that of a 5400 rpm IDE hard drive. The speed referred to here refers to the time when the page starts to be sent to the end of the imagesetter output. From the factors of stability and speed, it is recommended that users use a fast SCSI hard disk (more than 7200 rpm) on the machine where RIP is installed, and select a better SCSI card.