PSfilter Setup for IBM AIX ========================== 1. Overview 2. Setup 3. PSfilter Parameters and Options 4. PSfilter Direct Printing 5. Trouble shooting ============================================================== 1. Overview ============================================================== PSfilter is a proprietary printing protocol that provides the user with many print options. To use the PSfilter program, you must have a C compiler on the host so that psfilter.c can be compiled to an executable file. * To install and configure your system, create each required printer by following the instructions in SETUP. * Refer to PSfilter PARAMETERS & OPTIONS for details of using PSfilter to set print job parameters. * To test PSfilter, print a file directly to the Print Server, ignoring the system printing process. See PSfilter DIRECT PRINTING for more information. * To print normally (through PSfilter), use the normal system printing commands, such as lp. * Refer to the TROUBLESHOOTING section if you have any problems ================================================================ 2. SETUP ================================================================ Overview ======== On other Unix systems, a script file install.sh is used to compile and install PSfilter. This script DOES NOT WORK on IBM AIX, and MUST NOT be used. Instead, the mycc script is used to compile PSfilter.c. Installation must then be completed manually. The complete procedure is listed below. 2.1 Copy files --------------- Insert the TCP/IP Support CD in your CD-ROM drive and use the Unix program tar to copy all of the files to the desired directory. 2.2 Compile psfilter.c ----------------------- To compile PSfilter, cd to the directory to which the files were copied, and run the mycc script. ./mycc The PSfilter executable will be generated in the directory: ./LPsource 2.3 Create a fake printer device -------------------------------- Create a fake printer device for each printer attached to the Print Server by entering: cp /dev/null /dev/PRINTER_NAME Where PRINTER_NAME is the name of the printer you wish to create. 2.4 Change the access permission of the print device(s) ------------------------------------------------------ Change the access permission of each print device by using the following command: chmod 666 /dev/PRINTER_NAME Where PRINTER_NAME is the name of the printer created in 2.3. 2.5 Create virtual printer(s) ----------------------------- For each printer device created in 2.3, create a virtual printer with the command: smit mkvirprt The smit administration tool will ask the following questions: Specify where the printer is attached: Select 1: Printer or plotter attached to host. Specify a device name: Enter the name you assigned to the printer in 2.3. Answer the rest of the questions as normal to setup the printer. When prompted for POSTSCRIPT enter a printer queue name if using a postscript printer. The queue name can be any name which is a valid filename. To bypass this option enter ! When prompted for PCL, enter a printer queue name if using a PCL printer. The queue name can be any name which is a valid filename. To bypass this option, enter ! 2.6 Create a backend script file -------------------------------- A backend script file needs to be created for each printer. Each printer can have different PSfilter options specified in this file. This file should contain the following lines: *** Do NOT enter the  *** #!/bin/sh /usr/lib/lpd/piobe $* | [path]PSfilter -D[PS_NAME] [options] Where [path] is the location of the PSfilter program. [PS_NAME] is the name of the Print Server, as entered in /etc/host. [options] are PSfilter options, as described in the following section. Save the file(s) in the PSfilter directory. Each file should have a name which indicates which printer it belongs to. 2.7. Add execution permission to the backend script file --------------------------------------------------------- Make each backend script file executable with the following command: chmod +x file_name 2.8 Associate the printer with the script file ------------------------------------------------ For each printer, the queue must be associated with the script file, by the following procedure: If using AIX 3.X, enter: smit chquedev If using AIX 4.X, enter: smit pq_chquedev * Find the printer name and select it. A "Change/Show Characteristics of Queue Device" menu will appear. * Move the cursor to "Backend Program". * Type the full path name of the new script file for this printer. 2.9 Check the /etc/qconfig file ------------------------------- Check the /etc/qconfig file to see whether the backend program of the queue device is correctly modified. The /etc/qconfig file should include the following: printer queue: device = printer_name printer_name: file=/dev/printer_name header= never trailer= never access= both backend = [path]backend_script_file =============================================================== 3. PSFILTER PARAMETERS & OPTIONS =============================================================== PSfilter should not be executed directly, because this bypasses the lp spooler mechanism. However, if you wish to change the printer settings, you can modify the PSfilter command in the backend script file for that printer. Use the following syntax: ( Do NOT enter the  ) PSfilter -D[PS_NAME] [Options] Where [PS_NAME] is the name of the Print Server and the [Options] are chosen from the following list. OPTIONS ======= -P Selected print port is parallel port 2. -o3 Selected print port is parallel port 3. -S Selected print port is serial port. -T Text mode. LF will be converted to CR + LF. -a [AP] Send the print job to AP (Another Port) if the selected printer is busy. AP can have the following values: serial serial port para1 parallel port 1 para2 parallel port 2 all any of these ports. -b If the network traffic is very heavy, PSfilter will retry more times and wait twice as long as usual before the print job is aborted. -d[n] The number of minutes allowed before the print job is aborted due to printer faults. If n is -1, the print job will NOT be aborted and PSfilter will continue to wait for the printer fault to recover. The default is -1. -h[head_file] Send head_file before the print job to initialize the printer. Head_file must be specified with a full path. -p[string] Send string before the print job to initialize the printer. -s[string] Send string after the print job to reset the printer. -t[tail_file] Send tail_file after the print job to reset the printer. Tail_file must be specified with a full path. Note:Default Port The default print port is parallel port 1. This will be used if no port is specified. Note:Prefix Strings The string should be placed in single or double quotes. A string may only contain printable characters; control characters are NOT allowed. To use control characters, the -h<head_file> or - t<tail_file> options must be used. Example: ======= PSfilter -DMarketing -S -T -p"This is a prefix string" This example would make PSfilter reroute the printing job to the serial port of the Print Server, "Marketing", with the pre- string "This is a prefix string" and convert all LF codes into LF+CR codes. ================================================================ 4. PSFILTER DIRECT PRINTING ================================================================ PSfilter Direct Printing means invoking the PSfilter program directly, bypassing the lp printing sub-system. This means no queue is used, so direct printing should only be used to test that PSfilter is working properly. Syntax ( Do NOT enter the [ ] ) ====== PSfilter -D[PS_name] [options] < [filename]& Where [PS_name] is the name of the Print Server, as entered in the /etc hosts file [options] are as described in PSfilter PARAMETERS & OPTIONS above. If no options are specified, the defaults are used. (For example, parallel port 1 is used.) [filename] is the file to be printed. If the command fails, check for an error log file (PSErrLogXXXXX) in the /tmp directory. ================================================================ 5. TROUBLE SHOOTING ================================================================ Problem 1 -------- When the interface program detects that the printer device is not a printer, a printer error message appears on the screen. Solution 1 ---------- Mark out all stty commands in the interface script. Problem 2 --------- Jobs are not printed. Solution 2 ---------- * Check the backend shell script. Make sure that the newly created backend shell script calls PSfilter correctly. See System V Manual Setup, IBM AIX in Chapter 5 for more information. * Make sure that the new backend shell script has execution permission. * Check /etc/qconfig. Make sure that the /etc/qconfig file contains the correct modification of the queue device backend program. The queue device backend program is the file name of the new backend shell script.Download Driver Pack
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