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Hewlett-Packard OfficeJet T-Series Fax Device May Be Slow or May Not Respond

This article was previously published under Q256859
This article has been archived. It is offered "as is" and will no longer be updated.
Devices such as Hewlett-Packard OfficeJet T-series fax and printer devices (although not necessarily limited to T-series devices) may not work properly. The device may seem slow, or may not respond to commands.
If a program queries for available credits but no credits are available, the program requests credits from the peripheral (in this case, the fax device). When this occurs, the Dot4.sys driver "floods" the peripheral with zero-credit grants. These are essentially meaningless transactions. However, devices are required to respond to these requests in a timely manner. In some cases, the peripheral can use so much of its processing power in responding to these requests that it cannot process valid requests.
To resolve this problem, obtain the latest service pack for Windows 2000. For additional information, click the following article number to view the article in theMicrosoft Knowledge Base:
260910 How to Obtain the Latest Windows 2000 Service Pack

Microsoft has confirmed that this is a problem in the Microsoft products that are listed at the beginning of this article.

This problem was first corrected in Windows 2000 Service Pack 1.

Article ID: 256859 - Last Review: 10/20/2013 18:10:11 - Revision: 3.2

Microsoft Windows 2000 Server, Microsoft Windows 2000 Advanced Server, Microsoft Windows 2000 Professional Edition

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