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John, Computer Science Engineer
Category: Printers
Satisfied Customers: 5072
Experience:  CompTIA A+ & Microsoft Certified Professional with 15 years of experience repairing computers and printers.
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I have an Ricoh gx7000 printer and it is saying

Customer Question

I have an Ricoh gx7000 printer for sublimation and it is saying error 990 power off on
call service if error reoccurs. Can you help me.
Submitted: 1 year ago.
Category: Printers
Expert:  VanMagnus Systems replied 1 year ago.
Hello and thank you for choosing JA for your support needs. Sorry to hear of the issue. I am here to assist in its resolution. Please follow the link below:
Expert:  VanMagnus Systems replied 1 year ago.
The error means air in your line. Ao please follow the steps in the video...