print quality kyocera taskalfa 3051ci

[Nikola Karamanov]

Hi everyone! I have this issue with taskalfa 3051ci only with magneta and black colors. I have done drum refresh, developer refresh and calibration but with no success!
45619

[craigster]

I would pull developer units and check mag rollers

[kyotechnz]

Have had a fair few of this problem. When I see this I replace both the drum and dev for that colour.
Never found out what causes this.

[Nikola Karamanov]

The problem was from developer roller side, not from the drum!

[blackcat4866]

It's the developer spacers cracking. Magenta and black developing units will do the trick. =^..^=

[kyotechnz]

I replace both because from my experience with this fault the problem reappears if I replace just the dev or drum. The local Kyocera rep couldn't tell me the cause but Kyocera has supplied replacement drums and devs as the copiers were still under warranty.

[Ropariva]

As per Blackcat. The spacer rollers (black rollers) wear on the shaft reducing the gap. Later devs and hi speed machines used a white nylon roller which didn’t wear.

[Scott]

Charge rollers

[Phil B.]

Charge rollers

already diag'd as dev units.