File And Device Protection Commands; Protecting A File Or Device - Lexmark X644E Technical Reference Manual

File and Device Protection Commands

The following information applies to protection.

Protecting a File or Device

Use the DEFAULT command to set a on the entire flash or disk or on an individual
macro or font in flash.
Protection for a File
LRWLOCK with DEFAULT specified locks a file or device for reading and writing.
LWLOCK with DEFAULT specified locks a file or device for writing only.
Syntax:
@PJL DEFAULT LRESOURCE:"device:filename.filetype" LRWLOCK=""[<CR>]<LF>
@PJL DEFAULT LRESOURCE:"device:filename.filetype" LWLOCK=""[<CR>]<LF>
The filename used depends on whether you wish to put a on a font or a macro.
The filename for a font is a five digit ID from the print directory page (add zeros to the
left of the ID to fill the five digits) followed by a three digit instance number. The first
time a font is downloaded after a flash has been formatted, the instance number is 0.
•
You can set both read/write and write s for a resource. If both s are set, the
read/write has precedence over the write .
•
If you attempt to -protect a non-existing resource, the PJL interpreter will
return a warning (CODE = 25001).
•
If a resource has already been protected, the resource must be "unlocked"
before you can specify a different for that resource.
•
Several restrictions with s apply to flash due to the nature of the technology:
– You can create/change s for the whole flash multiple times, but each change
uses up free space in the flash that can only be recovered by reformatting
the whole flash.
– You can create s for individual resources on the flash only once. You can
also delete this once. If this is done, you must recreate the resource before
using the feature again.
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PJL