IBM 1725 SLS - Manual (Page 58)

Communications
QMS 1725 SLS Print System User's Guide 2-24
Emulation
Sets the parallel interface emulation.
Minimum Number of Kilobytes for Spooling
Sets the minimum number of kilobytes of system memory allocated to
the parallel interface.
Notes The printer must be restarted for changes to the menu to take
effect. You can either let the printer restart automatically after
you save the change and exit from the Configuration menu, or
you can wait for the change to take effect the next time you
manually turn on the printer.
Menu Administration/Communications/Parallel/Emulation
Choices ESP, Hexdump, PostScript, PCL5, HPGL,CCITT, Lineprinter
Other optional emulations also appear, if installed.
Default ESP
Menu Administration/Communications/Parallel/Min K Spool
Choices 00000-99999
Default 00015
Notes This value must be less than K Mem For Spool.
A 00000 value does not turn off the spooling buffer for the
parallel interface. If the value is set to 00000, the printer
calculates the Min K Spool automatically at initialization.
The printer must be restarted for changes to the Min K Spool
menu to take effect. You can either let the printer restart
automatically after you save the change and exit the
configuration menu, or you can wait for the change to take
effect the next time you manually turn on the printer.