Magenta background

[muhammadreza]

I change magenta drum developer and charger. When make few copy print are ok but when make many copy it will come like this ! Why it happen ? Machine model TASKalfa 5551ci

[blackcat4866]

Re: Magenta background

You left out two crucial pieces of information:

What size is the image in the photo?
What direction is the feed direction? (Are those bars crossfeed?)

If I knew the answers to the first two questions I would already know the answer to the third question: What interval in millimeters between the bars?

I'm going to make a guess that the interval is 21mm on an A4 image LEF, bars crossfeed. True?
=^..^=

[muhammadreza]

Re: Magenta background

You left out two crucial pieces of information:

What size is the image in the photo?
What direction is the feed direction? (Are those bars crossfeed?)

If I knew the answers to the first two questions I would already know the answer to the third question: What interval in millimeters between the bars?

I'm going to make a guess that the interval is 21mm on an A4 image LEF, bars crossfeed. True?
=^..^=

A4 pdf file and direction off paper are A4
And thanks to replay I already solved the issue

[copier tech]

Re: Magenta background

I change magenta drum developer and charger. When make few copy print are ok but when make many copy it will come like this ! Why it happen ? Machine model TASKalfa 5551ci

Looks like those marks are caused for the transfer belt.

[davel]

Re: Magenta background

A4 pdf file and direction off paper are A4
And thanks to replay I already solved the issue

So what was the fix?

[Phil B.]

Re: Magenta background

A4 pdf file and direction off paper are A4
And thanks to replay I already solved the issue

mind sharing with the class what the fix was?

[M94]

Re: Magenta background

A4 pdf file and direction off paper are A4
And thanks to replay I already solved the issue

Hey I'm essentially brand new to these forums and really just surfing around trying to learn from other peoples issues\solutions. Would really appreciate it if you could post the solution otherwise this post doesn't really help anyone having the issue in the future.

[muhammadreza]

Re: Magenta background

So what was the fix?

U100 (adjust main high voltage output) Adj Ac bise (Ac bise [M])
and set AC Auto Adj off

[KYO_OEM]

Re: Magenta background

Set AC Auto Adj. set to "off" ?
Bad idea, you`ll get other density problem in near future.
Not only [M], also [C,Y,K] possible.
Now system won`t calculate needed correct voltages anymore.
You will have no fun with this setting.

[bush_tech]

Re: Magenta background

U100 (adjust main high voltage output) Adj Ac bise (Ac bise [M])
and set AC Auto Adj off

this is the fault you can sometimes get when a drum is replaced without turning off the machine, the serial number and counter won't get cleared and there will be background unless ac auto adj is off

[copier tech]

Re: Magenta background

this is the fault you can sometimes get when a drum is replaced without turning off the machine, the serial number and counter won't get cleared and there will be background unless ac auto adj is off

You have to turn the machine of to replace the drum or it will error & even blow a board!

[KYO_OEM]

Re: Magenta background

We are talking about "old" Venus range.
At this range we can get this problem if needed adjustments wouldn`t done.
E.g. no U119, no U410, etc....
You has to shut down the system and unplug from power plug everytime before start from disassembling at each system.

[bush_tech]

Re: Magenta background

We are talking about "old" Venus range.
At this range we can get this problem if needed adjustments wouldn`t done.
E.g. no U119, no U410, etc....
You has to shut down the system and unplug from power plug everytime before start from disassembling at each system.