Horizontal white lines on Bizhub c220 + PHOTOS

[Copycrazy]

Update: I have swapped cyan and magenta drum unit and lines have changed from cyan to magenta

Hi

After printing a little work of 180 pages on normal paper, my bizhub c220 have started to make white lines across all the page. These lines are more visible on soft colors1.jpg2.jpg3.jpg

[allan]

Re: Horizontal white lines on Bizhub c220 + PHOTOS

Meter count on the machine?

When lines are going over(thru) all the colors like that it could be your transfer belt or/and transfer roller.
But had this where a laser was at fault.

Take the transfer belt out and take a picture of the surface and post that.
Are you a tech?
If you are not a tech i suggest you get a tech to inspect the machine for you.

[Hansoon]

Re: Horizontal white lines on Bizhub c220 + PHOTOS

Besides the information from Allan, I just had one to rebuild in the workshop, an extremely dirty machine. A very similar pattern appeared. We "cleaned" the laser windows with the build-in cleaning wand. Problem still exists. Made a "better" cleaning tool with a primitive wooden stick just wide enough to enter the gap in the frame above the slit glass. On its end I put sponge tape from the kind one uses for windows. This cleaned the slit glass much more better and the white lines disappeared.

Hans

[Copycrazy]

Re: Horizontal white lines on Bizhub c220 + PHOTOS

Meter count on the machine?

When lines are going over(thru) all the colors like that it could be your transfer belt or/and transfer roller.
But had this where a laser was at fault.

Take the transfer belt out and take a picture of the surface and post that.
Are you a tech?
If you are not a tech i suggest you get a tech to inspect the machine for you.

Hi, thanks for the response.

I am not a tech but i have disassembled parts sometimes, it's ok if i have to do.

NEW TEST:

Cyan is the main color with the white lines, on others its hard to see the issue.

I have swapped the drum unit from magenta to cyan. Now the lines have changed to the magenta color, but a bit softer than the cyan.

[qbert69]

Re: Horizontal white lines on Bizhub c220 + PHOTOS

Hi

After printing a little work of 180 pages on normal paper, my bizhub c220 have started to make white lines across all the page. These lines are more visible on soft colors[ATTACH=CONFIG]41811[/ATTACH][ATTACH=CONFIG]41812[/ATTACH][ATTACH=CONFIG]41813[/ATTACH]

I have seen something similar happen on Ricoh-Savin where there was clumping happening in the developer unit causing voids on the mag roller & thus not transferring a continuous tone evenly to the imaging drum. [emoji41]

Sent from my SM-N950U1 using Tapatalk

[tsbservice]

Re: Horizontal white lines on Bizhub c220 + PHOTOS

First picture to me looks like lines are going over entire page. If so I'm with Allan on this.

[copier tech]

Re: Horizontal white lines on Bizhub c220 + PHOTOS

Hi

After printing a little work of 180 pages on normal paper, my bizhub c220 have started to make white lines across all the page. These lines are more visible on soft colors[ATTACH=CONFIG]41811[/ATTACH][ATTACH=CONFIG]41812[/ATTACH][ATTACH=CONFIG]41813[/ATTACH]

Are you a tech?

Very common issue, from your print samples looks like the cyan image unit is causing this issue.

What are the life of the image units?

[Copycrazy]

Re: Horizontal white lines on Bizhub c220 + PHOTOS

Are you a tech?

Very common issue, from your print samples looks like the cyan image unit is causing this issue.

What are the life of the image units?

Hi,

Not a technician but i'm good disassembling and repairing parts. Only need to know which part is exactly causing the problem.

I know it's inside the drum unit, but what piece?

Could attack some photo?

[Toxic]

Re: Horizontal white lines on Bizhub c220 + PHOTOS

Swap yellow and cyan drum unit and check,yellow color are very good in hiding quality problem
Or replace drum unit to avoid more potential damage.

[Copycrazy]

Re: Horizontal white lines on Bizhub c220 + PHOTOS

Swap yellow and cyan drum unit and check,yellow color are very good in hiding quality problem
Or replace drum unit to avoid more potential damage.

That's a good temporarl solution, but i want to achieve to know the exact piece that produce the problem, for cleaning it.

There isn't any problem if i swap image units? They are made each for its own color or all are the same?

[allan]

Re: Horizontal white lines on Bizhub c220 + PHOTOS

Ok if you can't identify the transfer belt then best to get a tech to help you.
If you can remove the transfer belt, it is sometimes possible to match the lines you are seeing up with faint lines on the transfer belt.
Take a photo of the surface of the transfer belt for us.
But like i said had cases were its caused by the laser.

Meter count on the machine?

[Copycrazy]

Re: Horizontal white lines on Bizhub c220 + PHOTOS

Ok if you can't identify the transfer belt then best to get a tech to help you.
If you can remove the transfer belt, it is sometimes possible to match the lines you are seeing up with faint lines on the transfer belt.
Take a photo of the surface of the transfer belt for us.
But like i said had cases were its caused by the laser.

Meter count on the machine?

Hi

The machine has total 60 000 copies. Image units are about 30% life remain.

I have checked the transfer belt without disassembly, seems ok.

As i said today, when i swapped cyan and magenta unit, lines appeared on magenta and disappeared from cyan. So, the problem must be on drum unit of cyan.

At the first image i posted, grey and cyan show the same lines, but after exhaustive review, i have noticed that grey print has a bit of cyan due to an error when making the image on photoshop, thats why the two colours show the same line, but the problem is only on cyan unit


If the problem would be the laser, it should print lines on cyan even though i swap the image units, or i am wrong?

[copier tech]

Re: Horizontal white lines on Bizhub c220 + PHOTOS

Now you have diagnosed the the image unit causing the issue simply replace it with a new one. You cannot clean these units, the drum cylinder physically wears out, only solution is to replace.

[Toxic]

Re: Horizontal white lines on Bizhub c220 + PHOTOS

Drums are aging in rotation not just on page count so its not strange to see machine with low counter and 5+ years old to have some quality problems like this.
Thats why consumable life shows rotation and not page count for drums.
On C220 all 4 drums are physically the same ,chips are not,you can swap CMY drums without change chip.

[copier tech]

Re: Horizontal white lines on Bizhub c220 + PHOTOS

Drums are aging in rotation not just on page count so its not strange to see machine with low counter and 5+ years old to have some quality problems like this.
Thats why consumable life shows rotation and not page count for drums.
On C220 all 4 drums are physically the same ,chips are not,you can swap CMY drums without change chip.

You can set SW 50 to HEX 01 this changes the K IU engage to default rather the colour IU even if ruining mono print.