通过使用这种方法而非本机驱动程序，您还可以了解已打印的页数。

You will also gain insight into the number of pages printed by using this approach instead of native drivers.

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默认端口是用于本机驱动程序访问，而不是HTTP流量。

The default port is used for native driver access, not HTTP traffic.

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这类驱动程序的代码直接与高级本机api形成映射。

This type of driver code maps directly to a high level native API.

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