Configuring a PC Print Filter Pipeline to Support High Performance
What is the difference between a print filter and print drivers? The main difference is that print drivers are designed to be used with print hardware whereas print filters are designed to be used with devices like fax machines or printers. They are designed to be used in conjunction with one another so that the best possible performance can be obtained for a printer. Let us take a look at a few of these differences so that you can understand the main difference when it comes to print filtering.
One of the main things that separate print filters from other devices is that they are designed to perform on multiple tasks. A filter is able to remove unwanted dust, dirt and debris that may otherwise get in the way of the quality of the image that is being printed. It is also able to remove static from the image so that the images are not prone to becoming blurry. Additionally the print spool in the device allows for a consistent spooling, which means that multiple jobs can be run simultaneously without any issues. Of course in general the more tasks that the print filter has to perform the higher the cost of the device will end up costing you. Therefore you should always try to find a device that has a smaller number of tasks.
Another important thing that makes the difference between a print filter and other devices is the method by which the signal is processed. Most print drivers are designed to receive a command to print a specified file. As part of this process the driver checks whether or not a specified bit rate is available. If it is not available then it will try to detect the required bit rate using another method. This is where the print filter steps in and alters the command to suit its own needs. For example, it might tell the driver to print in color if the required bit rate cannot be detected.
As soon as the driver detects a new command it will read the supplied file and look for the appropriate command line. Once it finds the appropriate command it will allocate a slot in the print filter pipeline. The print filter will then begin processing the job and once it is completed it will send the command out to the rest of the devices on the network. However at this point the print spooler will need to become active so that all devices that were busy during the processing of the previous job can receive the job.
To make the whole thing work you should make sure that each of the devices on your network are able to receive your print job. Then once the job is successfully printed, you should disconnect all other devices and your host high CPU. Your host high CPU will take over the controlling role from here until your next printer is ready for a job. After the next printer is free for a job the host will shut down again and all remaining devices will be shutdown. This is to ensure that no one else uses the printer's functions after you have done this. You should now be able to view the status of your networked printer and determine if it is working correctly.
Occasionally your network may not support the print command for certain types of devices. This can be detected with the show commands in the system info dialog box. If you see an unknown device or unknown service request click on the unknown service request link. Then click on Next. You should then see all the possible commands that your print server supports. If you have enabled password protection, you should see an option for protecting your password for this print job.
Some people like to use the "set print command" command that is provided by the PC Printing Program to automate the process of filtering, positioning and printing. However in this case it is important to ensure that you have administrator privileges to do this. This will allow you to specify the parameters of the command and also have access to the print job. If you try to set the command to something that is already set, there is a good chance that you will get an error message stating that invalid or missing parameter.
You should then make sure that the host machine is powered on before attempting to do this. Once the filter is attached to the appropriate slot on the printer you are ready to start the print job. If you are using Windows, the commands will be contained in the device driver. Linux machines tend to have their own print driver program. Once you are done with the print job, close that application to prevent it from being corrupted or damaged.