CISS cartridge shows error

[Bass3rd]

I have a Workforce 30 with a CISS unit . javascript:emoticonp('')
My problem is that although all cartridges are full of ink,,the magenta shows as empty.javascript:emoticonp(':shock:') I've removed the cartridge and loaded it back in a number of times but still have the same issues.javascript:emoticonp('')
Can it be a chip set problem javascript:emoticonp(':?:')?.

[Justin]

Have you tried putting an original cart in and then swapping over? Can the chips you have be swapped between carts?

[Bass3rd]

No I haven't got another cartridge for it,,i purchased the printer with the CISS . I don't think the chips can be switched either.
thanks

[bms]

Sounds like you need to get a replacement magenta chip if this is faulty. Supplier of CIS should be able to supply.