Lexmark TN3270E 用户手册

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Appendix - COR/APO Logic (TN5250e):  Introduction
Appendix D - COR/APO Logic 
(TN5250e)
Introduction
The SCS/TNe Emulation (TN5250e) can rotate the printout from 
portrait to landscape based on menu option settings.
The distinction is between control of text, orientated according to a 
set text orientation command (STO) in the data stream (the FCB - 
format control buffer) and control of the text orientation from the text 
orientation automatic of the SCS/TNe Emulation. The SCS/TNe 
Emulation is reacting to the page format stated in the FCB. This is 
found in fanfold lists which are normally printed on matrix printers 
with wide platens. The automatic controls can easily be tested by 
using the "Print Screen" key from the system. The screen dump is 
usually printed in landscape and compressed if the automatic page 
orientation (APO) and computer output reduction (COR) in the SCS/
TNe Emulation is switched on with the 
CORDRW
 command.
The focus of this discussion is on how the printer automatic controls 
operate, as the user does not always have the possibility of defining 
whether a printout is to be rotated and compressed in the system. It