I can query a printer on LPT1 before printing?

I'm developing an application where the printer is on a different computer and cannot be placed on the network or shared and is too busy to be moved on my computer. I would like to be able to query for the presence of the printer before you print from labview. This would allow me to avoid having to turn off the line to the printer when it is on my desk and activate it when I build a test application that is running on the target computer. I can't send an IDN? because who is simply printed.

Any ideas?

Tay

What type/brand of printer that you use?  The configuration of the LPT1 port must be bidirectional?  I think you need to look in the programming manual of the printer to see if there is any kind of special codes (such as escape codes), you can send that could cause it to respond with information that you can read.

Tags: NI Software

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