|Command||tcl.set-lptr Verb: Access/TCL
Applicable release versions: R83, AP/Native
|Description||adjusts communications parameters to optimize parallel printer performance.
To obtain an optimum blend of printer and system performance, Pick Systems advises experimenting with different settings.
The values for the parameters depend on the printer type, the number of users on the system, and the aspect of system performance that is most important. Some values increase the amount of work the printer can do, but lengthen the time it takes for the system to respond to users. Other values shorten the time it takes for the system to respond to users, but decrease the amount of work the printer can do.
If no parameters are specified, the current settings for all printers are displayed. If only the printer number is specified, the current settings for that printer are displayed. If parameters are entered, only those that are being changed need to be specified. However, commas are needed to indicate missing values. Like the "term" command, existing parameters may be left intact by providing two successive commas where the parameter would normally appear.
"number" is the printer number and may be from 0 through 3, inclusive.
"delay" is the number of times to attempt to send a character to the printer. May be in the range from 1 through 4095. This number relates to the speed of the printer and the number of users that are sending jobs to the printer. If the number is too small, the printer performance degrades. If the number is too large, response time for the users degrades. The default is 300.
"burst" is the number of characters sent to the printer during one transmission. It may be in the range from 1 through 255. This number relates to the size of the printer buffer. In general, 15 provides good performance. The default is 200.
"slice" is the number of timeslices the printer waits before receiving its next time slice. May be in the range from 1 through 15. This number relates to the number of users and number of printers on the system. In general, the number should be equal to or greater than the number of users on the system (max is 15). The default is 1.
set-lptr  Printer 0 Delay=300 Burst=200 Slice=1  Printer 1 Delay=300 Burst=200 Slice=1  Printer 2-No controller is installed. This is sample output from an AP/Native implementation.