We have a CL7000 which comes up with error message SC375 & SC387. What does these relate to.

cannot find code in manual

SC387 Drum potential
error

Cause
· Uneven charge
· Worn drum
· Defective potential
sensor

Try the following
1. Clean the charge corona unit or replace the charge
corona wire and grid plate.
2. Reinstall the drum.
3. Replace the drum if necessary.
4. Replace the potential sensor.

Let me know if you need any more assistance

probably only when printing in colour? Black only, is ok right?
It needs to have it's line adjustment procedure done. This is a series of complicated trial and error adjustments performed in service mode that the individual colours are adjusted based on printouts generated by the printer. Can only be adjusted by a service tech with experience with this adjustment.

You Have a cyan developer problem They come in kits which is the cheaper way to buy them. -Carl

Run SP7-804-9
If you don't know how, or what that is, then you'd better call a service depot.
I will not post or discuss service mode procedures with end users, because you can create a great deal of problems if you're unsure what you are doing. (No offence)

Most likely, this will need a new Yellow developer unit.

Replace the Fusing Oil

Are you using the proper Windows Vista Driver? You can't use the XP version...here's a link to the download page:

http://www.ricoh-usa.com/downloads/downloads.asp?tsn=Ricoh-USA&path=http://support.ricoh.com/bb/html/dr_ut_e/rc2/model/cl7000/cl7000en.htm

You NEED to REPLACE the black development unit with a BRAND NEW item......these things are chipped so it won't accept previously installed units.If the problem still exists try a new PCU (toner cartridge).

That means you have to replace the 3 color drum units
in the front of the printer. NOT the fuser cartriges but the roller
units.