Lexmark X644e User Guide

Device names are case sensitive. They must appear exactly as shown.

Each device (except the disk) has one synonym. For example, the flash memory can 
be referred to as 

 or 

The name with the

 is a unique identifier. 

This system allows for future expansion of multiple flash memory or disk devices. The 
disk device name provides for multiple physical units and multiple logical units. Thus, 

indicates the first physical unit and the first 

 logical partition on the 

device. Currently, one physical device (for ROM, flash memory, and disk) is supported. 
The disk supports only the first 

logical partition.

Each file on a device has a unique name to identify the information contained within 
the file. The name may be up to 127 characters in length. All character codes from 
X'01' to X'FF' are valid (X'00' is not valid). Filenames are case sensitive: for example, 

 and 

indicate different files on the flash memory.

By default, all files referenced when using the PostScript emulation file operators are 
given a .data extension. For example, if the following PostScript emulation command 
occurs,

(%flash%myfile) (w) file

the file myfile.data is opened on flash memory. The .data extension is added to:

•

Enable the Print Directory feature to identify files as PostScript emulation data 
files.

•

Ensure the integrity of files, such as resource collection files and 
demonstration files.

However, it is sometimes necessary to access files by their real name through 
PostScript emulation. For example, you may want to remove old versions of PCL 
language resource collection fonts (without formatting the entire device).

To do this, use the PostScript emulation setfilenameextend operator. This operator 
is in the statusdict dictionary.