Digital BW, The Print

Hello everyone,

New to the forum.

I recently received a free R300, whose head was clogged.  I ran the MIS purge print page, and have the printer printing well without streaking or banding on the original oem inks.

I'm referencing the file below for carbon-6 printing:

http://www.paulroark.com/BW-Info/Carbon-6.pdf

Since the R300 is not an 8-color printer, I assume that the mixing ratios for the K, C, M, LC, LM, and Y positions are what I would use?  These ratios are by mass, correct?

I also assume that I need:

-a set of empty R300 cartridges from MIS
-1 18 oz. bottle of Eboni MK
-syringes for injecting the ink (?)
-Kodak Photoflo 200 and glycerol

Do I need to clean out the remaining color ink before introducing the MIS ink?  Does MIS provide instructions explaining how to fill their cartridges (I have never refilled carts before)?

Also, I do not own a spectrophotometer (although I do have a Monaco Optix XR for calibrating my monitor).  I also do not own a copy of QTR.  I know there are directions for using a flatbed scanner for making profiles, but do I need QTR to do this?

I appreciate any assistance very much.
David