M6526cdn yellow alignment issue

[copiertec]

Client called with colors not aligning, we went out and the transfer belt was shredded so we replaced it, ran the alignment and calibration procedures, swapped out the yellow drum unit but the yellow alignment is still off. Any suggestions?

[rapo_tech]

Re: M6526cdn yellow alignment issue

Replaced with new one?

You can run color reg multiple times to get yellow back in place.

Color Registration Shift ECOSYS_M6026cidn_M6526cidn.pdf

[copiertec]

Re: M6526cdn yellow alignment issue

The drums were swapped with others in the mfp, I will try a new one, with this procedure.

[rapo_tech]

Re: M6526cdn yellow alignment issue

I mean't if the transfer belt were new...
Problem should be related with transfer belt quality.

And have you cleaned calibration sensors?
And have you checked if the sensor cover moves when you close toner cover.

[copiertec]

Re: M6526cdn yellow alignment issue

I mean't if the transfer belt were new...
Problem should be related with transfer belt quality.

And have you cleaned calibration sensors?
And have you checked if the sensor cover moves when you close toner cover.

Yes, the belt is new out of the box. That usually fixes the issue. I cleaned the cali sensors but did not look to see if they move when closing the toner cover.

[tmaged]

Re: M6526cdn yellow alignment issue

You may need the firmware to reset it back to default. When they get out of spec too far, you can't get them back with the adjustment only.

[copier tech]

Re: M6526cdn yellow alignment issue

Client called with colors not aligning, we went out and the transfer belt was shredded so we replaced it, ran the alignment and calibration procedures, swapped out the yellow drum unit but the yellow alignment is still off. Any suggestions?

This bulletin may help.

Field Measures against Color Registration Shift.pdf

[Ropariva]

[rapo_tech]

Re: M6526cdn yellow alignment issue

After you get yellow back in place, you can check if automatic color reg works.

It is described in bulletin:
1. power off
2. open rear cover
3. hold down cover lock switch
4. power on machine
5. now observe if the calibration marks run once over transfer belt - its ok! if twice - not calibrating automatically... and some color may shift again in time.