Ricoh 1075 Problem

[copyalbania]

My friend it is not that i want to save money the problem is that in my country you can not find developer type 24 only type 21 so i put 750 gram of type 21 developer.

[techsass]

What do you get when you check SP2220 & 2223? That should give you a clue if it's DV/Toner related.

Don't think it matches your pictured symptom (looks more like a drum/charge issue), but since changing the DV got your CQ back for 5k copies I'd check the toner add gear & DV filter.

The 1075 had issues with the DV filter popping up and dusting the Laser shield glass when it 1st came out. Ricoh came out with a plastic bracket to hold it down. Tape works in a pinch. There was also a problem with the Toner add motor gear (Yellow Polyurathane type material) getting worn down if you didn't get the DV unit seated correctly. You can use a couple of sheet metal screws to give the coupling something to grab onto instead of replacing the motor.

[copyalbania]

Thank you very much TechClass

Yesterday i have opened the machine and make a total cleaning of the machine.
I cleaned very well toner hopper in the developing unit, i cleaned the drum unit and the cleaning brush roller and the drum hat black spots on it ( it seems like toner) and was very difficult to wipe out.
Also the mirror beyond the drum was full of toner.


When i make copies the copies where with black small spots and toner spilling was all over the page.

I do not it is a developer problem but a drum problem??

Can you help?

[Vollegaaz]

Sounds like you have medaka...make sure the airflow around drum is ok.

[copyalbania]

how can i check the air flow around the drum?

[Vollegaaz]

i've just re-read this topic, are you sure that you used the right toner in the machine ? Couple years ago i've had a customer who managed to swap toner from another machine into the bottle of the ricoh with the same symptoms...long shot but you never know !

[copyalbania]

I have used compatible toner Vollegaz....
Integral toner is the mark and it is very good i have proved in other machines and it is ok.

Any other idea?

Can the drum need to be changed because today that we are speaking i and changed the brush of the drum and the cleaning blade.

[ddude]

Double-check your positioning of the charge corona wires and grid, something may be out of place.

In these cases, were the machine was working before you serviced it, it works best to re-examine slowly everything you touched, whether or not you feel it is related.

[TonerMunkeh]

Hang on - you're using 1075 compatible toner with the wrong developer?

[copyalbania]

Hello my friend,

The developer Type 21 with the Type 24 are the same and same compounds, they change only in weights and as i have mentioned i have proved in other machines and everything is ok.

Can be the drum the problem of all of this?

Because when i open the drum its surface it is full of black dots that are hardly to remove?

[florintoni]

Hello my friend,

The developer Type 21 with the Type 24 are the same and same compounds, they change only in weights and as i have mentioned i have proved in other machines and everything is ok.

Can be the drum the problem of all of this?

Because when i open the drum its surface it is full of black dots that are hardly to remove?

On Ricoh machine, if you use toner, drum , developer, that are not original you will have problems for sure. This problem is for old models and for new ones too. They are sensitive copiers. You said your toner isn't original but compatible. I don't know what is your drum situation. How old is and what type.
I'll give you an example. One month ago i've set a compatible drum on a dsm 645 (af 2045). My client ask for this, because the genuine one it seemed too expensive for him. Toner is original, developer 20k and original too. After 15k error codes appear SC350, 351, 930. My client regrets the choice now.
Let's come back to your problem. Try to decrease development bias 2-201-001. Also increase charge bias 2-001-001. All this help you to get a copy with less toner on it.
Pay attention to the part with toner density and check your TD output voltage (from 2-208 forward)
See 2-506 also.
About the little dark dots on your drum. If you remove them and your drum remain a little bit faded on these spots, your drum is gone for good. There is nothing to be done but to replace it.
It is a pretty hard job to make a Ricoh going well with compatible consumables.