Microsoft KB Archive/150343

= Error Writing to Port in AutoCAD =

Article ID: 150343

Article Last Modified on 11/1/2006

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APPLIES TO


 * Microsoft Windows NT Advanced Server 3.1
 * Microsoft Windows NT Workstation 3.1
 * Microsoft Windows NT Advanced Server 3.1
 * Microsoft Windows NT Workstation 3.5
 * Microsoft Windows NT Workstation 3.51
 * Microsoft Windows NT Server 3.5
 * Microsoft Windows NT Server 3.51

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This article was previously published under Q150343



SYMPTOMS
When you try to plot a file using AutoCAD R13 under Windows NT, the following error message appears:

Error writing to LPTx the device is not ready



CAUSE
Autocad defaults to its own AUTOSPOOL feature, which requires the LPT port to be free. If you already have a printer defined in Print Manager to print to that port, you may get the above error.



RESOLUTION
You can configure AutoCAD to plot directly to the default printer set in Print Manager by configuring AutoCAD for System Printer ADI. The System Printer and System Printer Settings can be changed. In the Plot dialog box, open the Device and Default selection dialog box and use the Change Device Requirements.

Keywords: KB150343

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