dscInfo 词典 - 杯子印刷

Question

在我的.ppd文件中，我看到以下文本：

*% If the dscInfo dictionary is not set using the printer driver, the
*% userlogin and job name are set to "CUPS User" and "CUPS Application"
*% respectively. If the dscinfo dictionary is set, document name and
*% user name are set as per the CUPS login name and Document name.
*% The default print mode is Normal.

我现在的问题是，如何以及在哪里设置这个 dscInfo 字典，以便我能看到文档名称和用户名。