C6501 yellow lines and scratches on drums...

[inkhouse]

If i see good you are using replacement drums,not complete OEM drum unit?
Have you replace only drum or drum and drum cleaning blade because it looks like cleaning blade damaging drum?
Can you wipe this yellow lines or its physical damage on drum surface?
I use only OEM DU-104 on this 5501/6501 and never have problems,they last for 200-300% over life without quality issue.

i replace drum with blade always i tried both oem and long life drums same result lines start at 1st print ,scratches after 200 pages.
i cant wipe them i tried its permanent.

[inkhouse]

Blade flipping problem check Drum cleaning blade

i have replace the the yellow blade 3 times same result the thing is like i said i can see this lines on print even before the drum show scratches...

[sadanand]

Change developer and toner ,because that is the only thing touching drum ,also check telloe transfer rolller in ibt section

[methogod]

DU102 drums only.

do not use DU104.

make sure your removing the red screws from the drums when replacing.

what is meter/life of DV unit? DV?

[inkhouse]

DU102 drums only.

do not use DU104.

make sure your removing the red screws from the drums when replacing.

what is meter/life of DV unit? DV?

what red screws?

[Gaffers01]

You really should have someone look at that machine that knows what there doing.
The red headed screws are at either end of the drum unit to keep the dcb blade of the drum while in transport.

[inkhouse]

You really should have someone look at that machine that knows what there doing.
The red headed screws are at either end of the drum unit to keep the dcb blade of the drum while in transport.

i have the drum in front of me ..i can see the screws that hold the blade ..there is no red heading screw ,only vlack and silver

[sadanand]

i have the drum in front of me ..i can see the screws that hold the blade ..there is no red heading screw ,only vlack and silver

Dear Sir those screws are only with new drum unit before installing

[inkhouse]

Dear Sir those screws are only with new drum unit before installing

i replace only drum not drum unit ..i havent change the whole unit.

[inkhouse]

UPDATE:
i replace the drum unit (i removed the red screws) the big think yellow toner lines fixed but still i got this line in the same spot

Drum lines - Album on Imgur