AnaJet Sprint Ink Charge

Hi Guys
I bought a refurb Anajet Sprint which was not used for over 5 months, when I was trying to run the printer it doesn't do an ink charge? Tried few times and it's still the same. Tried with cleaning fluid as well and still the same! Totally new to DTG printing. Highly appreciate your expert views!!!!!!!

Thanking in advance

Newbie