color shifting c6500

[Chromatik]

I agree!!

[HORSE]

Sample 1 is 300 gsm and the problem is always more noticeable in the circled area especially around 300mm from the lead edge.

Sample 1 close up shows the text filling in red because the mag pixels are knocked out by 1/4 - 1/2 pixel due to fuser shock.

Sample 2 is on 200gsm not so noticeable on the scans but is still can be seen with naked eye. Doesn't happen on plain paper 80-130 gsm at all. Using 300 gsm Mondi helps a lot but its still there, also increasing the text size and it doesn't fill in so much.


They all do it... just depends on the type of work and if you are sharp enough to pick it up. Its even worse on long grain paper.

[RRodgers]

I'm jumping into this late and haven't read any of it... but... have you done the belt line speed adjustment? Sure the encoder for the transfer belt is clean?

[alex.imagemax]

Re: color shifting c6500

Guys,
I'm with this problem in all my C6500 field here in Brazil, approximately 150 machines, already changed all the possible parts, boards, registration sensor, speed settings drum and belt, updating of firmware version 70, but nothing worked, I'm finding that it is a chronic problem of the machine. If anyone has a solution on this issue please let us know.

[jma676]

Re: color shifting c6500

Guys,
I'm with this problem in all my C6500 field here in Brazil, approximately 150 machines, already changed all the possible parts, boards, registration sensor, speed settings drum and belt, updating of firmware version 70, but nothing worked, I'm finding that it is a chronic problem of the machine. If anyone has a solution on this issue please let us know.

Hello, you can contact us with a private message, we are in Argentina and we can give you support for your machines.

[drodas78]

Re: color shifting c6500

Hi, I'm having the same problem with a new (1000 clicks) C70hc. Does anybody knows how to fix it?

Regards.

[RRodgers]

Re: color shifting c6500

Hi, I'm having the same problem with a new (1000 clicks) C70hc. Does anybody knows how to fix it?

Regards.

Make a new thread, run the density balance adjustment.

[KM1Amsterdam]

Re: color shifting c6500

All 6000 and 7000's i know have the same. The problem lies in the fact u cannot adjust the speeds the fuser uses to make a loop/arch between transfer en fuser during printing. The initial speed is to slow, causing the transfer unit to slow down when paper enters the fuser, the loop is increasing. If the fuser loopsensor swiches the fuser increases speed to decrease the arch/loop. The transfer unit also increases speed because. It is this influence on transfer belt speed, that causes the color shift.

Best would be to make speed differrance for loop creating/decreasing adjustable. Less differance and looping for stiff papers.