My aficio 1018 shows an error SC320 what is the most likely problem and solution

SC320 IS A LASER PROBLEM .
KINDLY AND CEREFULLY REMOVE THE LASER UNIT AND WASH WITH DETERGENT VERY THOUROUGHLY AND DRY UNDER THE SUN FOR ABOUT THREE HOURS AND REPLACE IT BACK TO ITS POSITION .
IF U POWER THE MACHINE AND THE SAME PROBLEM OCCURS, CHANGE THE LASER COPLETELY.
GOODLUCK.

clean laser unit OR replace it

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My name is Bruce

SC320 is a polygon mirror motor error. It could be caused by a poor connection or a faulty circuit board, but the most likely culprit is the polygon mirror motor itself. Replacing this motor (part #G0291961) is the most likely solution.

Hope that helps!

when u reset phot/txt mode button must also be pressed with ok button. press both buttons together

Is this actually a Ricoh Aficio 1013F, or another model, because "CH551" is not a ricoh service code?Do you mean "SC551"
If so, this is a fuser "triac" problem (basically a fuse in the heater unit). It can only be reset in service mode after the problem is fixed...and will require a tech.

That is a "Laser motor" Error - Laser motor is dead, and needs replacement.

Change the polygonal motor of the laser.

For the Aficio 1018. SC-320 is laser failure - the polygon mirror motor inside the laser has failed and needs replacing. You will need to contact your nearest service agent for repair.

For your RICOH Aficio 1013F - SC-551 is overheat in standby mode as far as I can tell. The circuitry that controls the fuser section ie manages the heat has problem. Unless its right near a source of heat like a heater or has no circulation around you machine you will need contact a repair agent for this machine also.

Hi it is the polygon motor failure error

2nd motor down on this link is what you need.