IBM 6400 Setup Manual page 236

Step Key
10.
Examine the print quality of the characters. They should be fully formed and of uniform
density. If the test does not run or if text characters do not appear correctly formed, contact
your IBM service representative.
11.
Stop
12.
Scroll
13.
Start
6–8 6400 Line Matrix Printers Setup Guide, Cabinet and Pedestal Models
Result
NOT READY
OPERATOR MENU
+
Scroll
LOCKED
READY
Notes
Returns the printer to the
NOT READY mode.
Locks Program mode and
the Operator Menu.
Returns the printer to the
READY mode.