Lreadfile command – Lexmark C762 User Manual

Page 169

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PJL

3-90

LREADFILE Command

Use this command to read data from a file on a storage device.

Syntax:

@PJL LREADFILE DEVICE = filedevice FILENAME = "fname"
[START = location] [LENGTH = bytecount][<CR>]<LF>

Response Syntax:

@PJL LREADFILE DEVICE = filedevice FILENAME = "fname"
START = location LENGTH = bytecount<CR><LF>
<requested data from the file>@PJL END DATA<CR><LF><FF>

Notes:

The file must be closed using the LCLOSEFILE command once all operations
are complete.

The command is ignored if the file doesn’t exist on the device or has not
already been opened with LOPENFILE with an

accesstype

of

RO

,

RW

, or

AP

.

If the START =

location

parameter is omitted, location

0

(beginning of the

file) is assumed.

If a START location is provided but it is greater than the file size, the response
will contain no file data.

If the LENGTH parameter is omitted,

bytecount

is assumed to be equal to

the entire file beginning at the START location.

If the LENGTH is greater than the file size on a LREADFILE command, it is
assumed to be the entire file beginning at the START location.

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