View Full Version : Electrical C250i cyan background
goose
05-10-2022, 07:20 PM
Today I had a C250i with a cyan background and poor print quality on the copies. Demo page was reasonably ok as were the calibration sheets. This pointed to a scanner issue. When I looked at the scanner the, exposure leds were actually blue instead of white!
I changed the exposure assembly with another machine and copies are now ok, exposure lamps are white.
Just thought i'd share :)
tsbservice
05-10-2022, 07:44 PM
Today I had a C250i with a cyan background and poor print quality on the copies. Demo page was reasonably ok as were the calibration sheets. This pointed to a scanner issue. When I looked at the scanner the, exposure leds were actually blue instead of white!
I changed the exposure assembly with another machine and copies are now ok, exposure lamps are white.
Just thought i'd share :)
This is new machine? What about warranty?
goose
05-10-2022, 08:02 PM
This is new machine? What about warranty?
It was ex lease, I was repairing for a trader. Don't know the warranty status
Albonline
05-11-2022, 05:54 PM
the exposure lamps are now RBG LEDs. needs all three channels to make white.
tsbservice
05-11-2022, 07:14 PM
the exposure lamps are now RBG LEDs. needs all three channels to make white.
Means red led isn't emitting, good catch.
goose
05-11-2022, 08:05 PM
the exposure lamps are now RBG LEDs. needs all three channels to make white.
That's what I figured. There's no way they could emit blue otherwise! Could have been a poor connection, but have yet to test the "faulty" unit.
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