km 4030/35 copy quality problem

[n25an]

When I make copies or prints from the copier, I get a banding on the back of the paper... below is an example... I have changed the fuser, the developer, the transfer assembly and have begun messing with sim mode 101... with varying degrees of success... anybody has any ideas...

[n25an]

km 4035/30 copyquality issue... banding on the back of copies...

Since it's on the back of the paper I'd check the transfer belt/roller and perhaps the fuser.

channged the transfer assembly (roller) issue went away for a bit then came back... put in a brand new fuser... no effect on issue...

changed developing unit... the banding became very light... put back old developing unit... issue came back...


when making copies... some copies will have no banding while others will have banding to various degrees...

anyone faced this issue before... ???

how did you finally fix it... ??

[Jules Winfield]

Does this machine run aftermarket toner? From the picture, it looks like the developing unit is dusting and creating a build-up on the transfer roller and possibly the transport section guides. Since the dev unit and trasfer section has been replaced, It might be a good idea to start looking at the HV PCB.

[n25an]

very good idea...

Does this machine run aftermarket toner? From the picture, it looks like the developing unit is dusting and creating a build-up on the transfer roller and possibly the transport section guides. Since the dev unit and trasfer section has been replaced, It might be a good idea to start looking at the HV PCB.

I will try that tomorrow... and thanks for the explanations... and I think the buildup is exactly whats happening... and we are using aftermarket toner...

[n25an]

aftermarket toner

I will try that tomorrow... and thanks for the explanations... and I think the buildup is exactly whats happening... and we are using aftermarket toner...

is there any test that i can perform to check if the copier is processing the toner correctly...???

[Jules Winfield]

It's not really a test, but if you look at the drum (provided it hasn't been recently cleaned) and see little white marks all over it then the toner may be contributing to a dusting problem. The white marks are actually wax particles. Lower quality aftermarket toner uses this stuff as a lubricant. The problem is that it cakes up in the developing unit, on the drum and in the fuser, thus causing all kinds of problems.

[n25an]

how to check for bad aftermarket toner

It's not really a test, but if you look at the drum (provided it hasn't been recently cleaned) and see little white marks all over it then the toner may be contributing to a dusting problem. The white marks are actually wax particles. Lower quality aftermarket toner uses this stuff as a lubricant. The problem is that it cakes up in the developing unit, on the drum and in the fuser, thus causing all kinds of problems.

Interesting, I will check for this tomorrow... thanks for the tip...

[Scott]

never

never use after market toner on these units I tried it for approx a year and had premature drum/dv's wear out so I never saved anything.. as well as issues that your seeing. I would also update firmware as this also helps with this problem when it shows up with OEM toner

[n25an]

that begs a question....

never use after market toner on these units I tried it for approx a year and had premature drum/dv's wear out so I never saved anything.. as well as issues that your seeing. I would also update firmware as this also helps with this problem when it shows up with OEM toner

can I use kyocera tk70 toner in km 4030/35