Mpc5000 m lines

[fbkhan3]

Re: Mpc5000 m lines

Can you just take out the Transfer cleaning Unit and try to clean the Blade and see if that solves the Issue.or if you could swap the unit with another one.(Transfer Cleaning Unit) is the culprit here.

had similar one in MP C2051 few weeks ago.

Better Luck!

[slimslob]

Re: Mpc5000 m lines

I have seen this happen a few times in the past, even with brand new OEM drum units. Toner concentration in development unit gets too high. Result: on intense color areas, there is too much toner applied to the drum for the cleaning blade to remove completely. You end up with a dirty charge roller. Quick check is to reduce the mount of toner applied by reducing the development bias. First change SP 3041-001 to 0. This takes control of bias voltages away from process control and uses the voltage setting in SP2005, charge DC bias, and SP 2229, development DC bias. Second lower the development DC bias for the offending color by 50 volts.

The following file was given to me by my district service rep. The settings slightly reduce toner concentration in the development units and compensates for the lower toner concentration by slightly increasing the amount of toner pulled to the ITB. It will take a few copies for the toner concentration to be reduced. Once it has you can change SP 2041-001 back to 1. Using these settings, I have seen a large reduction in calls for drity charge roller.
Service Program (SP) Settings.pdf

[jamesfrancis18]

Re: Mpc5000 m lines

Magenta lines. Changed c,m, y as over pm life. Swapped m with c drum but m lines not changed. Stuck ran IPU test patterns but didn't really confirm much other than its engine based fault.

Try changing bicu and memory reset this help me clear the white lines

[banginbishop]

Re: Mpc5000 m lines

Try changing bicu and memory reset this help me clear the white lines

Thanks - I've been stuck here for 3 years doing this fault🤔

Appreciate the help but the thread is 3 years old. A memory reset very rarely works & it wasn't white lines but magenta lines.

[jamesfrancis18]

Re: Mpc5000 m lines

Thanks - I've been stuck here for 3 years doing this fault🤔

Appreciate the help but the thread is 3 years old. A memory reset very rarely works & it wasn't white lines but magenta lines.

I just wanted share my expirinces. Anyway mine was cyan,magenta lines and I have change drum unit ,itb,laser unit, transfer roller no luck. After resetting all memory setting it works for me. Hope this can help others as well.