Refill Brothers?

[Smile]

Search "пружины ржавеет epson"
This will find many threads on russian forums with this rust problem.

 

[CakeHole]

Fair enough after a quick look around i agree its a potential issue.

HOWEVER, that spring though has not gone like that in a short period even if it were made of the cheapest tin possible, that has to be years of use or they have soaked it in salt water or worse to make it like that. That to me looks severe rusting either years old or been in contact with some type of fluid. I would not think that is a few weeks or months use.

Id still go the refillable cart route they work reliably (ignoring spring issues) from what ive seen and read and will be easier to fill than an original Brother cart.

Oh and PS Stainless still unless its 100% pure is magnetic, go get a knife and fork from your kitchen marked stainless steel and see for yourself

 

[Smile]

Fair enough after a quick look around i agree its a potential issue.

HOWEVER, that spring though has not gone like that in a short period even if it were made of the cheapest tin possible, that has to be years of use or they have soaked it in salt water or worse to make it like that. That to me looks severe rusting either years old or been in contact with some type of fluid. I would not think that is a few weeks or months use.

Id still go the refillable cart route they work reliably (ignoring spring issues) from what ive seen and read and will be easier to fill than an original Brother cart.

The springs rusts in 6 months, not years.

Oh and PS Stainless still unless its 100% pure is magnetic, go get a knife and fork from your kitchen marked stainless steel and see for yourself

The anti magnetic means compared to normal steel spring. The stainless spring will fall from magnet under it's own weight.

 

[CakeHole]

Id be very shocked if it rusts that bad in 6 months, if you leave a old food can for 6 months its insides probably would not develop a layer of rust that bad.

Stainless steel unless 100% pure is magnetic, i live in the UK which more than a few years ago was a world leader in the manufacture of stainless steel in a part of the country called Sheffield. Most of my knifes and forks are Sheffield Stainless and a magnet sticks to them and can lift them quite easily. This is quality cutlery which has been owned for more than a few years, the metal is still shiny and in superb condition, not cheap low stainless percent stuff.

You are not thinking of a Aliminum-steel mix are you? A magnet would not stick well to that stuff it would still rust though (actually more turn to a chalky decaying substance) with use.

Regardless if it were that bad id either just swap springs over or just paint the ones that come with them in rust oxide, Hammerite or similar paint to prevent that issue. In fact even that spring unless its at the stage it is about to break could be saved with rust oxide paint.

 

[Smile]

Springs are so small the Hammerite or similar would not work I think.

 

[PeterBJ]

Smile is right. Unprotected carbon steel will corrode quickly when exposed to ink and air. Even a Zinc coating is no protection if applied by electroplating. Here is an image I borrowed from Nifty from this old post:

The screw was used to seal the top fill hole on a canon cartridge. The post is from 2005, and the silicone plugs we use today were not available back then. The part of the screw that was in contact with ink has clearly rusted.

There is no such thing as 100% or less Stainless steel. There is no 14 carat or Sterling grade stainless steel. Instead there are different alloys with different properties, including magnetic properties. A typical stainless steel is 18-8, meaning the alloy contains 18% Chromium, 8% Nickel and the rest is Iron.

Most stainless steels are alloys of Iron, Chromium and Nickel. Chromium is the vital part in making the steel stainless. If present in the alloy in sufficient amount it forms an oxide layer that protects the steel from corrosion. Nickel might be necessary for obtaining special properties.

Here and here more info about stainless steel is found.

 

[CakeHole]

Springs are so small the Hammerite or similar would not work I think.

It would be fine its only roughly the thickness of common household paint and it designed to bond to various metals to prevent rust, it would not likely affect the functioning of the spring at all. Once applied it often lasts for years, does not chip or flake easily either. One dip of the spring into a can of that paint and left hung up to dry would likely stop any rusting issues (at least for more than a few years).

Smile is right. Unprotected carbon steel will corrode quickly when exposed to ink and air..

That is the thing though i did not think the spring in MOST brother carts actually made contact with the ink, all it does is basically control the opening and closing of a valve. Obviously liquid plus air will rust nearly any metal in various periods of time. But unless i was wrong i did not think brother springs actually came into any contact with the ink/fluid. If they do make contact with the ink my apologies.

PS Ah, the iron content in stainless explains why all my stainless cutlery is also magentic the first link explaining its only "Annealed Austenitic" stainless which is non-magnetic basically explains what i thought and is a nice read thanks. For a moment there i thought i was either going mad or my stainless cutlery wasnt actually stainless steel lol.

 

[Smile]

Local car restorers tried to use Hammerite paints for cars, they quickly found that it is unsuitable due to micro cracks forming in the pain because of vibrations etc.

Car is not a stationary object like metal fence etc. Hammerite is good for that. That's why they use Epoxy paints for cars. Springs on the other hand even flake off the nickel plating if compressed enough times. So stainless few hundred springs for 15$ from alibaba is best bet.

 

[CakeHole]

If you are going to replace the spring entirely though you may as well save expense all together and just use the spring from your set of original brother carts as originally suggested.

Personally i find it hard to believe a spring no matter what it is made of would rust that bad in such a small amount of time. It makes no contact (AFAIK) with fluid, is technically not exposed to much light while the cart is fitted to the printer either, theres nothing what i can comprehend which would make it rust that quick..... Im not saying its impossible just find it hard to believe it would rust as fast as some have claimed.

PS with regards to the hammerite, surely it would work as the spring is not constantly contracting and expanding is it????
Unless im wrong doesnt the spring only contract when you insert the cartridge? There would be no movement except when you take the cart out and the spring re-expands to its natural state. In the case of the large carts that hold 100+ml of ink you are not going to be removing it that often and certainly not enough for the paint to chip inside a few months, you would have to be printing hundreds of pages a day to go through ink that quickly and be removing carts that often..... Actually now i think about it even if you were burning through ink you still with those carts do not have to remove them to refill, they have their own top up bung/plug externally to fill through. SO once installed the spring has no need to move with or without paint, which makes the rusting even more of a puzzle!

 

[PeterBJ]

I don't know the inner works of Brother cartridges, but here is a post showing the inner works of an HP951 cartridge. It is seen that the spring is inside the cartridge, and submerged in ink.