Biz hub c454e black issue

[G6token]

[Momiowilove]

Re: Biz hub c454e black issue

Did you try to test the whole balck imaging unit to another machine.? Maybe you have a problem in your grounding in the black imaging unut. Try to check the female and male connectors maybe there is a toner build up on the connector. Try to check sir

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[copyman]

Re: Biz hub c454e black issue

Since that machine don't use an imaging unit but instead uses separate drum and developer units, unfortunately with that high of a meter it could be any of the drums or developers over their life. There is a bulletin addressing overlife consumables. "Any" color overlife can affect "any" other color. What is the consumable life showing? Don't forget drums can be chipped and may be bad if showing life. It a tough call to troubleshoot, I would bring all good used color Dev & drums and swap out one at a time, etc.

This is exactly why if a new customer, and definitely an exisiting customer ask me to repair an Ebay machine I say NO!