IBM 6400 series Maintenance Manual page 355

Power On/Off Verification
1. Make sure all covers are installed.
2. Plug the power cable into the customer's power outlet.
3. Power on the printer and watch the LCD.
4. Verify that the power on diagnostic tests and initialization routines are
successful.
5. After successful initialization, the printer should cycle automatically to
either the READY or NOT READY mode, depending on which power on
state was selected when the printer was configured.
6. Power off the printer. Verify that the LCD goes completely blank and all
fans stop.
Print Interlock Service Check
1. Power on the printer.
2. Open the printer top cover.
3. Open the forms thickness lever.
The LCD should display "057 CLOSE PLATEN" and the audible alarm
should sound if it is enabled.
4. Press Stop. The audible alarm should stop.
5. Close the forms thickness lever. The fault message should clear.
Safety Inspection Guide 355