C284e washes out colors

[mrfuser]

We have a client with a c284e that was losing yellow so we replaced yellow drum and developer and that seemed to work for a while then it came back. We also replaced the itb assembly, cleaned sensors , cleaned sub hopper assembly and it came back fine again and then after a week started losing again. Now it is seeming to wash out all colors and yellow is almost completely gone.

We watched it adding toner and the levels are about 2% except for yellow at 8%.

any ideas?

[mascan42]

Re: C284e washes out colors

Any error codes?

[Synthohol]

Re: C284e washes out colors

is there an abundance of yellow DV in the WTB?
the white toner bushings leak and send toner into the WTB.

[mrfuser]

[mga]

Re: C284e washes out colors

We have a client with a c284e that was losing yellow so we replaced yellow drum and developer and that seemed to work for a while then it came back. We also replaced the itb assembly, cleaned sensors , cleaned sub hopper assembly and it came back fine again and then after a week started losing again. Now it is seeming to wash out all colors and yellow is almost completely gone.

We watched it adding toner and the levels are about 2% except for yellow at 8%.

any ideas?

Did you use drum kit or new oem drum was it a new dev assy

[Copier Addict]

Re: C284e washes out colors

Have you cleaned the printhead?

[mrfuser]

Re: C284e washes out colors

Yes oem drum and dv assembly and yes cleaned print head. Get Atc errors for rear sensor and yellow

[mga]

Re: C284e washes out colors

Have you cleaned the printhead?

? Print head

[tsbservice]

Re: C284e washes out colors

? Print head

Not PH unit itself I think, just:
Troubleshooting

[mga]

Re: C284e washes out colors

Not PH unit itself I think, just:
Troubleshooting

Why do they call it a print head in the user guide it a laser

[tsbservice]

Re: C284e washes out colors

Why do they call it a print head in the user guide it a laser

True, I also was confused when come to Konicas from Toshiba when they call it LSU - laser scanner unit.
Nevertheless it's just laser unit - diode, poly motor and some lenses and mirrors.

[copier tech]

Re: C284e washes out colors

We have a client with a c284e that was losing yellow so we replaced yellow drum and developer and that seemed to work for a while then it came back. We also replaced the itb assembly, cleaned sensors , cleaned sub hopper assembly and it came back fine again and then after a week started losing again. Now it is seeming to wash out all colors and yellow is almost completely gone.

We watched it adding toner and the levels are about 2% except for yellow at 8%.

any ideas?

Take out the yellow dev unit, has it lost its developer?

If so then most likely you have blocked airflow.

Dirt on edge and faded image (blur) caused by developer leakage - Premature Developer Unit Failu.pdf

[Walterj]

walvaradocruz@gmail.com




Regards.

[mrfuser]

[Cyclops85]