Lexmark X864 SCS/TNe Emulation User's Guide - Page 179

Prop Font Move (IDB Option 118) This SCS Options option controls whether or not the SCS/TNe Emulation uses proportional font handling. The individual character width values of the printer's native fonts must correspond to the width value which the host expects the characters to have. The SCS/TNe Emulation adjusts each character to obtain the correct width value. This is necessary in order to use bold text, underscored text, and to align the right margin. Setting this option to Use enables Proportional Font Move on all fonts. If you need to enable the function for only a single font, it is recommended to use the P value for the parameter in the PRGFNT command. Option Value Do Not Use * Use IDB Value 0 1 User IDB parameter OFF ON User IDB command: PRPFNTMOV : Parameter: OFF, ON Operations - TN5250E SETUP: SCS OPTIONS > Prop Font Move (IDB Option 118) 181