Adobe Reader and Acrobat 10.1.2 default to printing on both sides of the paper (also know as printing back-to-back or duplex). Some users have reported issues with this default setting. The confusion often stems from printers that cannot automatically print on both sides. On these printers, it's necessary to reinsert the paper to print the other side. Common symptoms are:
- Printer light blinking when the job is received, but nothing prints.
- Printer asks to load paper even though there is plenty of paper in the tray. (Printer needs you to reinsert the printed pages.)
- Printer prints only odd- or even-numbered pages. (Printer needs you to reinsert the printed pages.)
Reader 10.1.2 crashes: If Reader crashes or hangs when printing, see PDF won't print | Reader 10.1.2.
This issue has been addressed in free 10.1.3 update to Reader or Acrobat X. You can install the update automatically from within Reader or Acrobat.
The following key gets generated automatically when a user tries to print on a duplex printer and then closes Reader or Acrobat 10.1.2.
HKEY_CURRENT_USER\Software\Adobe[Acrobat Reader OR Adobe Acrobat]\10.0\AVGeneral] "iDuplexMode"=dword:00000001 1 = Simplex (no duplex) 2 = Duplex with Long edge 3 = Duplex with Short edge NOTE: 0 (or key does not exist) = Duplex with Long edge
Reader: [user]/Library/preferences/com.adobe.Reader.plist Acrobat: [user]/Library/preferences/com.adobe.Acrobat.Pro.plist The name of the key is "DuplexMode" under "AVGeneral" and it has the datatype Number. Set this value to "1", for Simplex. 1 = Simplex (no duplex) 2 = Duplex with Long edge 3 = Duplex with Short edge NOTE: 0 (or key does not exist) = Duplex with Long edge