Lexmark Printer manual Status Readback Commands, Dinquire Command, Response Syntax

3-54 PJL

Status Readback Commands

Applications can request configuration and status information from the printer using the Status Readback commands. In addition, the printer can also be instructed to send unsolicited status information back to the host computer when asynchronous events occur, such as a memory error or a paper jam.

To determine which commands your printer supports, see “Table B-8: Status

Readback Commands” on page B-13.

DINQUIRE Command

This command is used to query the default setting (NVRAM) of the specified environment variable.

Syntax:

@PJL DINQUIRE [command modifier:value] variable[<CR>]<LF>

Response Syntax:

@PJL DINQUIRE [command modifier:value] variable<CR><LF> value<CR><LF>

<FF>

where:

[command modifier:value]

The [command modifier:value] parameter specifies the type of PJL variable to be queried. The variables supported are listed in the tables beginning on page 3-12.

•A [command modifier:value] parameter is not required for variables listed in the tables “Common Variables for Both Printer Languages” on page 3-12, and “Printer Unique Variables for Both Printer Languages” on page 3-19.

•LPARM:PCL is used with variables specific to PCL emulation. (See the tables “Common Variables for PCL Emulation” on page 3-48, and “Printer Unique Variables for PCL Emulation” on page 3-49.)