Lexmark Printer manual Lreadfile Command, Response Syntax

3-90 PJL

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 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.