To reset the SC code follow these directions:
Resetting Ricoh Savin Lanier Gestetner SC Error Code
Error code 120 is scanner home position sensor problem. If it's a recurring problem, here are some troubleshooting tips:
SOLUTION:
Turn the main switch off and on.
Check the wires between Home Position sensor and the SBU.
Fix scanner board or the SBU .
Check the wires between scanner motor and the scanner I/O board
Fix the scanner motor.
Fix the Home Position sensor.
Fix pulley, timing belt, the scanner wire,
Fix the carriage.
please press the counter key(123) and tap on the system settings .
Tap on the administrator tools and tab on user authentication .
tap on the the user password and cancel.
All the best of luck.
if any problem, call +233243494871 for help.
322 is a laser problem
remove the laser and wash in a clean water with detergent .\
dry it under the sun for about three hours and refix it back .
if the problem persist ,
call for a change of laser.
good luck
1. press the counter key,
2. press and hold the (#) key and tap the system settings on the touch screen. The screen will read (change settings to factory settings)
3. press yes and wait for the reply of completed .
4. put off the machine and restart ity.
GOOD LUCK.