What is the solution for error code caa0 on my toshiba e-studio 850 copier?

SOURCE: what is error code f105 for an toshiba e-studio 520 copier?

Dear sir; There have your solution, try to turn power off and on, if can not reset , you have to replace HARD DRIVE, f105 is hard drive problem. good luck! if you need more help please let me know, HAVE A HAPPY HOLIDAY !!!

SOURCE: error code c440

Hello sir; C440in this machine,it means fuser unit problem, but it can be reset the procedure as follow;
1, hold down "0" and "8" keys while turn on the power.
2, enter 400 press start.
3, enter 0 press set or enter.

SOURCE: Toshiba e-Studio 350 FAX Communication error

Are you still receiving faxes although you are unable to send? Or is it no send & no receive? When you hook a phone up are you able to connect with a # dialed from that phone. It's possible that the problem is the copiers NCU board- but it's rare that they fail & even more rare that it loses just the send portion. You'll want to be absolutly sure that it's not the phone line. If you are positive that the problem is not the phone line - try turning the machine off & unplugging the power cord for 30 minutes. Occasionally the NCU card will lock up & not function properly. Unplugging the machine for 30 minutes has worked for me in the past.

SOURCE: toshiba 160 error code

c44 = fuser error
turn copier off
hold down 0 & 8 while turning it on

then wait one min, then press 4 0 0 start

then 0 and set

turn off wait one min then turn on if this does not work it might need parts

SOURCE: CODE CD30

CD30 is an error code when there is an obstruction under the finisher trays. most of the time it is a garbage can preventing it from moving up and down properly