Mf8080cw error code e020-0000 message says "turn main power on". What does this mean since the power switch is on?

SOURCE: ERROR CODE SC101

SC101 indicates and exposure lamp problem. To try and correct, turn OFF the copier and then unplug from the wall. Wait 10 seconds and plug it back into the wall, then turn on the copier. Watch to see if the exposure lamp comes on - lift the document handler if you want. If the exposure lamp is working correctly, the scanner will briefly move to the right and the light will turn on then off after it moves to the left.

SOURCE: Error E000001-0000

e001 is a fuser error. it might be able to be reset, but should be looked by a tech.

SERVICE MODE
*28*-press the additional func button, 2&8 at the same time, and the additional func button again.
when you have done it correctly, the screen will change and it will say service mode across the top.
Then select:
copier
func
clear
err
press the done or ok button on the lower right side of the screen.
turn the machine off at the black switch on the right side, wait 10secs, turn back on. should work.
****DONT MESS WITH ANYTHING ELSE IN SERVICE MODE YOU CAN REALLY SCREW UP THE MACHINE.!!!!!!!!!!!!!!!******************

SOURCE: error

E000007-0000 code is Fixing Film error.
FM2-3346-000
1 FIXING FILM ASSEMBLY 120V
FM2-3353-000
1 FIXING FILM ASSEMBLY 230V EXCEPT CN
FM2-3329-000
1 FIXING FILM ASSEMBLY 230V CN

SOURCE: I have a ricoh 2051

After turn the main switch off and on the error appears again????
This error means that there is a bad comunication between the controller board and the operation panel.
Did you intervew in the machine? Some tecnical intervewing?

SOURCE: turn the main power switch(on the main unit's

check the power supply first. is there any voltage fluctuations? Go to service mode. Addl. function>2&8>Addl. function> select copier. function>clear>err>ok. switch off the machine, wait for 15 minutes & turn on