ERROR OCCRRED SC:552 - Ricoh Aficio 2020 All-In-One Laser Printer

this may help Cdigo de erro 552 02 mpc4502 5502

http://www.copytechnet.com/forums/ricoh-savin-gestetner-lanier/117427-mpc-3502-sc-552-02-a.html

Sc 552 is Heating roller warm-up error 2
• The heating roller temperature does not reach the ready temperature for 90 seconds after the heating lamp on.
• The heating roller temperature does not reach 80°C for 13 seconds after the IH inverter on.
• Defective thermistor
• Defective IH inverter
to solve that problem u have 2 solutions

1. Check if the heating roller thermistor is firmly connected.
2. Replace the IH inverter.

Dirty fusing thermistor. Clean it, go into tech mode and turn off main power switch to reset it.

Fusing thermistor defective or out of

position

or

Fusing lamp open

SC 552 - Pressure roller warm-up error

Definition: After the main switch is turned
on or the door is closed, the
pressure roller temperature
does not reach the ready
temperature within 150
seconds during fusing unit
warm-up.

Possible Cause:
• Pressure roller fusing lamp broken
• Defective pressure roller thermistor
• Defective BCU

Troubleshooting Procedure:
1. Check if the pressure roller thermistor
is firmly connected.
2. Replace the fusing unit.
3. Replace the BCU.

Are you sure of the code? I don't have the exact manual for that, machine but the number seems strange. "5xx" errors are usually related to the fuser, so could be a bad lamp, thermistor, or fuse. see note to reset (if there is not a problem) as follows:
There are 2 levels of service call conditions.
Level Definition Reset Procedure
"A"
To prevent the machine from being
damaged, the SC can only be reset by a
service representative.
The copier cannot be operated at all.
Enter SP 5-810 (SC code reset) and
select “1”. Then hold down the Original
type key and the OK or ! key at the
same time (this does not require the
main switch to be turned off and on).

Enter SP mode by pressing;

• Clear (yellow) button
• 1 0 7
• Press and hold the Stop (orange) button for 3 seconds.
• Switch off and on the machine.

If SC 552 (Fusing warm up error) appears again, possible causes are;

1. Fusing thermistor defective or out of position or dirty with toner
2. Fusing lamp open, and
3. Power supply board defective.

Good luck and please rate me, thanks.

Try the procedure below. Its a hardware error on the device

Press and hold online + escape, then power on.
Use up and down arrow keys to select SP2
Press Enter
Use up and down arror to locate SP5
Press Enter
Use up and down arrow keys to select 810
Press Enter
Confirm the selection
Power off and on.
The error code is now cleared.