Konica Minolta bizhub PRO 1050P User Manual page 19

In the PostScript Custom Size dialog, enter the width and height to be used.
Click OK to confirm the changes.
In your application, select File » Page Setup, then select Paper size = PostScript
custom size and enter the orientation.
Note: MS Word has known problems to work with this kind of custom paper
size, therefore it is better to use forms as described above with MS Word.
Note: You can set the PostScript custom size also from your application by
selecting Print » Properties » Advanced and then selecting Paper size »
PostScript custom size. However, this way the definition will be valid only
within this application and only as long as the application is opened.
Windows Printing • 19
Konica Minolta bizhub PRO 1050 Printer Driver