Pro C901 SC412

[DanaNL]

Hello,
hope u all had a good new years evening.

I have a Ricoh Pro C901 but somehow i cannot find the potential sensor in the PartsCatalog.

the machine gives SC-412 any solution would be apreciate it.


thanks in advance,

[totoro]

From the service manual
sc 412 D ID sensor error: Development gamma M

Development gamma for black, magenta, cyan, or yellow is not
within range (0.3 to 6.0). Process control halts when this SC is
issued.
ID/ MUSIC sensor shutter defective
LD sensor harness loose, broken, defective

LD unit not firing
CGB HVPS harness loose, broken, defective
CGB HVPS defective
Developer worn

Check the result of process control with SP3-821-001.
Result code: 55 or 59
Replace the developer.
Result code: 56
1. Clean the dust shield glass of the LD unit.
2. Replace the CGB HVPS.
Result code: 61
1. Check the harness connection to the LD unit.
2. Replace the LD unit.

from parts manual frame section 2

G178 2549 Electric Potential Sensor

from GG June 2016

SC 412 ID sensor error M - ID/MUSIC sensor shutter defective
SC 412 ID sensor error M - ID/MUSIC sensor defective
SC 412 ID sensor error M - CGB power pack defective

Happy New Year to you and hope that helps.

[DanaNL]

Thank you verry much!