B&B Electronics Parallel Printer Card PIOC Manual de usuario descargar pdf (Pagina 52)

GHI Electronics,LLC USBwiz User Manual

USBwiz Command Set

TF - Print File

This command transfers a file from a connected storage media to a printer. This

commands simply reads the file contents and send them to the registered printer.

Format TF<SP>P>H>FileName<CR>

!00<CR>

P: Register printer port number

H: A free file handle to use

FileName: Name of the file to transfer.

!00 (First !00): This error code indicates

that the command is accepted and the

file transfer is in progress.

!00 (Second !00): This error code

indicates that transferring the file is

done with no errors.

Example TF<SP>0>0>PIC.PRN<CR>

!00<CR>

Notes:

1. The printer should be initialized before using this command (Refer to UP

command).

2. The storage media should be initialized before using this command (Refer to FM

command).

Q. Can I print a picture “PIC.JPG” directly using this command?

A. No, This command will read the file and send it (as is) to the printer. The printer

would receive the picture bytes but it will not understand what the bytes mean. They

might indicate a picture, text ...etc. You will need to send the data in a format that the

printer will understand.

Q. How can I use the command then?

A. This command is useful for rapidly transferring a file from a media directly to the

printer.

One way to turn your picture files(ex: JPG) or text files (ex: TXT) into a file that the

printer understands is to use “print to file” in Windows. Windows will translate the file

into another file that the printer understands using the appropriate drivers. Then you can

put this file on a Thumb drive and print it using this command.

UI - Enumerate USB Device (Raw Command)

This command is used to enumerate the newly connected USB devices and assign a

Device Handle to it. Before using any other raw commands the device should be

enumerated. USBwiz has 3 device handles.

Format UI<SP>p>h<CR>

!00<CR>

p USB port number 0, 1

h USB device handle 0, 1, 2

Example UI<SP>0>0<CR> Enumerate the device connected on port 0 and

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