Bizhup PRO C6500 White line in cyan

[costel fasola]

Hi,

Could you please guide me through this process.

Much appreciated

u need a service manual

[Blockshocker]

Many Thanks

[costel fasola]

welcome

[AyJayAreDii]

Thank you for your quick reply.

The cyan developer is at 36%
The cyan drum is at 81%

What is Cyan Dev Unit counter? Even if you unblock the blockage, it maybe worth replacing the dev units on the next service. your example don't look that strong a solid even without the white band.

[Stirton.M]

Hi,

Could you please guide me through this process.

Much appreciated

There IS NO 36 MODE in a C6500.

And resetting the dev unit will only make things really bad for you, if you do not know what you are doing. Leave such things to a qualified tech.

[paulyp3856]

look at your cyan corona, if not that, back roll your cyan mag roller and see if it improves.

[HORSE]

look at your cyan corona, if not that, back roll your cyan mag roller and see if it improves.

Contaminated corona will give you a dark line on a C6500 not a white line.

[dljorg]

Could also be a bit of fuzz or something between the laser and the drum. Area under the dev unit is particularly prone to this. Remove the transfer unit and the cyan drum then use a flashlight on the area directly under the dev unit. Fuzz is sometimes hard to see.

[vanman]

White Line Fix

Had the same exact Problem. Look at the cyan developer toner roller, you should see a even coating of toner across the length of the roller. In your case there is going to be a gap or a light coating of toner on the area of the stripe. Take a 2" wide strip of 80lb gloss, an feed it in the bottom portions of the roll approx 1-2" until it stops. Then move the strip left and right across the length of the roller. There is a blockage preventing even toner distribution, this will losen it up and should correct your problem.

[drodas78]

Thank you Vanman I will do it and let you know.

[kronical]

Check your charge grids for dirt or debris, also check your laser slits.

[empiru]

Hi!

It is clearly a matter of the laser beam not "getting" on the drum surface.
1. Check the "Dust proof glass" - it could be dirty
2. Check UNDER the Cyan Developing Unit to see if there is dust standing in the way of the laser beam.
3. Check the mag. roller of the developing unit to see if it is uniform (or even, how should I say? ). If you can see a lack of developer on the mag. roller in that area where the white line appears, then you should just clean the developing unit.

[Stirton.M]

*shakes head*

Either of you last two guys bothered looking at ALL the other responses? Your contribution is certainly welcome, but you are simply revisiting solutions that have already been stated. Several times in fact.

[trublu]

While something interfering between the laser and drum normally produces a sharply defined line, I have had a case where a translucent liquid had been spilt on the print head window, which gave a more fuzzy line.