Ap3800c will not print the colour it sees

So the quality is good, it's just not "exactly" like the screen? It never will be "exact". Depending on what you're describing, if the colour is off, it could need the drum(s) or Development unit(s) replaced to improve the quality; however, if your just talking about "matching" the screen colour, you could line up 100 different printers and you'd get 100 different outputs....it's not an exact science. Perhaps you're using a generic toner vs. the OEM brand, this would change your results too.
There are also 3 different printer "languages" (drivers) that the printer can print with: RPCS, PCL 5c, and Postscript 3. All of which will give slightly different print qualities. You may want to try installing a different driver than you're using, and you may prefer the output. Postscript 3 is the best in my opinion.
you can go to this link, select your OS, and download another driver:

http://www.ricoh-usa.com/downloads/downloads.asp?tsn=Ricoh-USA&path=http://support.ricoh.com/bb/html/dr_ut_e/rc2/model/p3800c/p3800cen.htm

I hope this helps.