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jmanly
06-05-2009, 11:28 PM
We are getting streaking (please see attached photo - lines in the center actually go all across but did not show up in scan) on black test prints. We change the imaging unit but are still getting the same results??

copy guy
06-08-2009, 10:43 PM
Did you run individual color samples? YMCK? If the same streaks show on other colors, it could be transfer belt. If it's only on black, it could be print heads. Did you clean those too?
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Good luck and may the schwartz be with you.:cool:

harry2007
06-09-2009, 02:56 PM
-pull out all the imaging units
-pull out the transfer belt and waste box- now you can clean in good condition all the LED units with alcohol.

brenni
06-18-2009, 11:06 PM
- check black iu, replace for testing
- 2nd transfer roller might be dirty; wash out with warm water

JOSH
06-19-2009, 04:29 PM
Does it show up on the Halftone patterns for all colors or justone specific color. Try changing the transfer roller

albasoul06
06-27-2009, 11:09 PM
Replace the Transfer Belt Unit

abilashvk
06-29-2009, 02:42 AM
Friend,
Clean LED head and mag.roller of black IU( for some dust accumulation like any other copier.If every thing OK then, as usual go for replacements of Black IU, if other IUs are good and/or TransferBelt assy,. which U R the best judge

Morgales
06-29-2009, 07:06 AM
Pull out the laser unit, one unit and clean the 4 mirrors, if you have even a small spec of toner on the mirror it will result in blank streaks.

azhartm
06-29-2009, 06:43 PM
Clean LED head and mag.roller of black IU

Morgales
06-30-2009, 05:59 AM
How did you clean the LED head? removed the I.U and use the cleaning tool or did you remove the lasers/PH unit from the left side of the machine?

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