FAQ

I am running in LU1 mode, and Function 3 is set to 10 CPI but I am getting a different CPI. Why?

In LU1 mode the CPI & the LPI can be sent from the host. Take an on-line hex dump to see if 2B commands are being issued. If they are, you must have the programmer turn them off or have the person responsible for VTAM set the printer to LU3 mode.