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Print jobs are sent in a variety of formats, each suited to different computing environments EMF Enhanced metafile (EMF) is the standard format for print jobs created on Windows XP Professional EMF files are highly portable because the instructions for the print job are assembled on the user s computer, and the spooler completes the processing of the print job EMF data is created by the GDI After an EMF job is sent to the spooler, control is returned to the user, and the spooler finishes processing the job This limits how long the user s computer is busy RAW RAW is a common data type for clients other than Windows The spooler does not modify RAW data It is sent directly to the printer.

RAW [FF Appended] RAW [FF Appended] is exactly like the RAW data type, except that a form-feed character is appended to the end of each print job The last page of a RAW document does not print on a Printer Control Language (PCL) printer, so appending a form feed is necessary RAW [FF Auto] RAW [FF Auto] is exactly like the RAW data type, except the spooler checks the document for a form-feed character at the end of the job If there is no form feed, the spooler adds one Text Text tells the spooler that the data is ANSI text and modifies it if necessary The print processor takes the text and calls GDI for playback The text is printed using the printer s default font Text data is composed of values from 0 through 255 Each value represents a different character.

This data type is based on the ANSI standard, and if an application that has another character set creates text data it does not print This often presents a problem in the extended character range, represented by values above 127..

If you want to read more about some topics covered in this chapter, simply create a search query by pressing F1, and then search for the following keywords: declaring variables and string concatenation. The videos from MSDN are another good source of information. These videos were specifically created to cover the Visual C# 2005 Express Edition product, but they are for the most part still applicable to creating your first application using the 2008 version. You can find the video for Lesson 1 that covers getting started with Visual C# Express at the following location: http://msdn2. microsoft.com/en-us/beginner/ bb308735.aspx.

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This troubleshooting section provides several approaches to solving printing problems. The first section describes common printing problems and solutions. The second section describes the parts of the printing process. You can learn how printing works, determine where a printing problem occurs, and fix that part of the process.

This section describes some of the most common printing problems and their solutions. You can use the following examples to solve similar problems.

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Windows XP supports the NTFS file system. Although a file system is a feature of a local computer, not the network service, there are many benefits in using NTFS when you are networking a computer. All computers use a file system of some kind to organize and maintain data on a hard disk. In Windows 9x and Windows Me, the File Allocation Table (FAT) file system was used. However, the FAT file system does not provide several important features and functionality provided by NTFS. With Windows XP, even home users can use the NTFS file system and take advantage of its benefits, many of which are of great utility in a network environment including:

Cannot Administer Printers after an Upgrade Power users are now required to have the Load and unload device drivers permission to administer printers For more information about this new requirement, see Installing Local Printers earlier in this chapter Cannot Install a Plug and Play Printer Windows XP Professional includes more printer drivers than previous versions of Windows, but if the printer driver you need is not included with Windows XP Professional, your computer does not automatically install your printer, even if it is Plug and Play You can install the printer by using the Add Printer Wizard Click Have Disk to provide the required drivers If required drivers are available, you might want to restart your computer If a Plug and Play printer requires manual detection, you must restart the computer before installing the printer Manually detected Plug and Play printers typically use parallel port connections.