Printronix MVP Series user manual 01H-09H, 0EH, 0FH, 1BH Host Mode Control

01H–09H, 0EH, 0FH, 1BH — Host Mode Control

The Host Mode Control feature allows you to change print/plot mode on a line–by–line basis without interrupting printer operation. Without this feature, print/plot mode is determined by the setting of Configuration Option 30, which is loaded when the power is turned on, or manually changed when using the control panel switches.

You can change modes on the 150B/L150B printers using host mode control by embedding the mode change control code sequence in the data stream. Control code sequences are interpreted according to the configuration options resident in printer firmware, and the printer output is modified accordingly.

Host Mode Control Feature Selection

Data stored at Configuration Option 20 determines whether the host mode control feature is enabled or disabled and what the command sequence recognition programming standard is. You can select either 20.1, P–Series programming standards, or 20.2, ANSI programming standards, (refer to Chapter 4, Configuration).

With Configuration Option 20.1

Configuration Option 20.1 enables host mode control using the P–Series programming standard. Valid control code sequence headers (beginning characters) are defined by option numbers contained in Configurations 31 through 41. Valid P–Series control code headers and their associated configuration options are listed in Table 7–7. Print mode change control code sequences must begin with the selected P–Series header.

With Configuration Option 20.2

Configuration Option 20.2 selects host mode control using the ANSI programming standard. This standard requires all print mode change control code sequences to begin with the Esc header (1BH).

NOTE: When Configuration Option 20.2 is selected, Electronic Vertical Format Unit (EVFU) channel 12 (Vertical Tab 1BH) will not operate.

7–20 Programming