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Likes: Hello Users!
I got Problems on my C258, full dot patern Yellow, changed dev, PCU, ITB, nothing changed.
Anyone can help ?
BR
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bizub c258 Image Quality Yellow
Hello Users!
I got Problems on my C258, full dot patern Yellow, changed dev, PCU, ITB, nothing changed.
Anyone can help ?
BR
Hi, are you using original toner? How many pages has it done?
If it only does this with yellow, the glass of the PH Unit may be very dirty. Take the wand and clean the window of the PH Unit.
phwindow.jpg
Obviously you have to do it in the yellow section.
Hello again
Allready cleaned complete Laser Unit. Problems only with yellow , using Original Toner; the machine is quite "new" 80k B/W and 2,5k Color sites
Thx 4 quick answer, any other ideas ?
BR
Stop the machine mid run & remove the transfer unit what does the yellow image look like on the belt?Originally Posted by Ruumduuly
Looks like the y transfer roller bushing is broken in the transfer unit.
Let us eat, drink, and be merry, because tomorrow we may die!
For all your firmware & service manual needs please visit us at:
www.copierfirmware.co.uk - www.printerfirmware.co.uk
Allready changed Transfer Unit, 1 new One, 1 "old-used" from a perfectly working machine, still Yellow troubles
Image on the transfer Unit looks like the printed one (.pdf from 1st post) = Image bad on transferUnit
Very strange. By changing developer you mean whole developer unit or just powder? Yelow magnetic brush nice and even? New OEM yellow drum unit, not some modified one?
A tree is known by its fruit, a man by his deeds. A good deed is never lost, he who sows courtesy, reaps friendship, and he who plants kindness gathers love.
Blessed are they who can laugh at themselves, for they shall never cease to be amused.
I don't reply to private messages from end users.
what does the brush on the DV unit look like?
He replaced the dev unit so unlikely a new one has the same fault.
Let us eat, drink, and be merry, because tomorrow we may die!
For all your firmware & service manual needs please visit us at:
www.copierfirmware.co.uk - www.printerfirmware.co.uk
Re: bizub c258 Image Quality Yellow
Summary of Day 4 - repairing my C258
new Dev Unit Y
new PCU Y
new Transfer Image Belt
used Laser Unit from another working machine
connectors off/on High voltage Board & FrontBoard behind waste toner box (where DEV units and registration ...are connected on)
thx@all now time for weekend & BBQ
BR
Any error codes present or in history? Almost looks like distance between developer and drum is too wide in areas where image is missing. Are we sure sample is LEF?
A tree is known by its fruit, a man by his deeds. A good deed is never lost, he who sows courtesy, reaps friendship, and he who plants kindness gathers love.
Blessed are they who can laugh at themselves, for they shall never cease to be amused.
I don't reply to private messages from end users.
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