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I lookup for answers for this same problem and the only best solution I found is to put at memory 2 applications and configure them. Then, when you print to LPT1, your job will be saved as a file and the other application will send it to USB port.<br />
&nbsp; I hope it help you, find this answer here:<br />
<br />
<a href="http://www.columbia.edu/~em36/wpdos/winprint.html#usbprint" rel="ugc">http://www.columbia.edu/~em36/wpdos/winprint.html#usbprint</a><br />
<br />
God bless you,<br />
Alexandre R.
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I lookup for answers for this same problem and the only best solution I found is to put at memory 2 applications and configure them. Then, when you print to LPT1, your job will be saved as a file and the other application will send it to USB port.
  I hope it help you, find this answer here:

http://www.columbia.edu/~em36/wpdos/winprint.html#usbprint [http://www.columbia.edu/~em36/wpdos/winprint.html#usbprint]

God bless you,
Alexandre R.

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 I'm sorry Alex Goldberg, but the site I gave has a freeware named PrintFile, where you can configure a directory where everything you put there, it send to the printer spool. It would solve the USB problem.<br />
&nbsp; Yes, you're rigth when you said about the WordPerfect driver. I really didn't see it was only for WordPerfect because the name they gave it - &quot;driver&quot;. But using the &quot;PrintFile&quot; is freeware and &quot;dosprn&quot; is not.<br />
<br />
<a href="http://www.lerup.com/printfile/" rel="ugc">http://www.lerup.com/printfile/</a><br />

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I'm sorry Alex Goldberg, but the site I gave has a freeware named PrintFile, where you can configure a directory where everything you put there, it send to the printer spool. It would solve the USB problem.
  Yes, you're rigth when you said about the WordPerfect driver. I really didn't see it was only for WordPerfect because the name they gave it - "driver". But using the "PrintFile" is freeware and "dosprn" is not.

http://www.lerup.com/printfile/ [http://www.lerup.com/printfile/]


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I have an HP 845 Inkjet printer connected to USB port.<br />
<br />
How can I print a .PRN file from DOS Prompt to the <br />
USB port ?<br />
<br />

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I have an HP 845 Inkjet printer connected to USB port.

How can I print a .PRN file from DOS Prompt to the 
USB port ?



Printing to USB port

A printer is a peripheral which makes a persistent human readable representation of graphics or text on paper or similar physical media. Traditional printers are being used more for special purposes, like printing photographs or artwork, and are no longer a must-have peripheral; 3D printing has become an area of intense interest, allowing the creation of physical objects. An image scanner is a device that optically scans images, printed text, handwriting, or an object, and converts it to a digital image. Hand-held scanners, where the device is moved by hand, have evolved from text scanning "wands" to 3D scanners used for industrial design, reverse engineering, test and measurement, orthotics, gaming and other applications.