I have a Lexmark MX710CE printing magenta across entire page. Black prints are fine. But when printing color the whole page edge-to-edge is solid magenta. Replaced the imaging unit per Lexmark service but no change. Don't know where to look next? 
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Re: Lexmark MX710CE printing magenta across entire page?
is there a separate development unit in this machine? sounds like a failed developer or even a bad ITB belt -
Re: Lexmark MX710CE printing magenta across entire page?
Separate drums and charge unit for each color. Already replaced them. B&W mode is fine. Color mode, doesn't matter if there's color on the print or not. Comes out solid magenta. See samples attached.Black mode.jpgColor mode.jpgComment
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Re: Lexmark MX710CE printing magenta across entire page?
Yes, you're experiencing charge loss at one of the color units or HVT. I would try swapping around the photoconductors to see if you can get the background color to change. If it doesn't change that points toward the HVT (probably on the power supply). =^..^=If you'd like a serious answer to your request:
1) demonstrate that you've read the manual
2) demonstrate that you made some attempt to fix it.
3) if you're going to ask about jams include the jam code.
4) if you're going to ask about an error code include the error code.
5) You are the person onsite. Only you can make observations.
blackcat: Master Of The Obvious =^..^=Comment
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Re: Lexmark MX710CE printing magenta across entire page?
Hey guys, narrowed it down to the magenta laser. It's staying on all the time. Most likely a board problem.Comment
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