HP 2500 HP PCL/PJL reference - Printer Job Language Technical Reference Manual - Page 328

After a job boundary is encountered and there is no data available from the active I/O port, all the I/O ports are enabled and checked for available data. The first port to receive data is the new active I/O port. The other ports are temporarily disabled, the print job processed, and then the automatic I/O switching process repeats. Configuration Configuration is the process of changing printer settings. The printer is configured using the control panel or PJL. Context-Sensitive Printer Language Selection Context-sensitive printer language selection is a method of selecting a printer language by looking at the first portion of a job to discover clues as to which printer language to use. The syntax differences in each printer language allow the language to be determined. Context-sensitive language selection is only operational if the control panel variable PERSONALITY is set to AUTO and the print job does not contain a PJL ENTER command before non-PJL data. Control Code A control code is a non-printable ASCII character that initiates a printer function, for example carriage return (), line feed (), and form feed (). Default A value used instead of a programmatically selected value. A factory default is a value programmed into the printer at the factory; this value is stored in read-only memory and cannot be changed by a user or operator. A user default is a default value, stored in non-volatile RAM (in printers that have NVRAM), that is selectable using the control panel or the PJL DEFAULT command. Download The process of transferring data, including soft fonts, macros, or raster data from a host computer to the printer. Environment See "Print Environment." Glossary-2 EN