Resetter disasters

[stratman]

... hows it work with regards to the double decker pin config (second lot in from the left) do they just make contact with the same part of the chip on the CLI8 cart?

I wonder why they went for a double decker 2 pins at one particular part of the cart/chip?

One of the 4 contacts on the chip is longer than the other three contacts. It is this longer contact that the double pin touches.

Why the pins are configured like this is unknown to me. I recall faintly electrical issues, such as early battery failure and failure to flash, with early Redsetter clones. Maybe having 3 batteries and more pins on the resetter was the designer's way of building a better mousetrap.

 

[PeterBJ]

If you look at a Canon OEM chip you will notice that one of the contact pads is longer than the others. This longer pad makes contact between the double pin set on a 5 pin resetter. This serves to switch the resetter on an off, so no mechanical switch is needed. I don't know if this is more or less reliable than a micro switch.

I have had problems with the micro switch in a first generation PGI-5/CLI-8 original redsetter. I had to push down hard on the cartridge to make the switch turn on the resetter. Raising the PCB with 4 small insulating washers solved the problem. This resetter is from 2008 and has been used a lot. I think the contact has become worn, and contact cleaner didnt help, but the washers did.

I see no reason that the resetter posted by Harvey in post #43 shouldn't work. I see no broken tracks and no short circuits. I also think the solder joints are OK, but that is hard to see from the photo. That some of the protection lacquer has flaked off is no big deal. The copper wont corrode away soon, and the affected area carries no current.

More about different resetter models is found here, and most resetters are OK but a few are not, see this.

 

[CakeHole]

Yeah looking at the second image of the second post it looks almost like an after thought, basically a two prong/contact in a single hole. Maybe people had issues making contact with the carts contact points?

 

[The Hat]

Here’s another one of these 5 pin resetter posted by ‘Rox two years ago..
http://www.printerknowledge.com/threads/blue-chip-resetter-canon-can-they-go-bad.7592/#post-58343

 

[CakeHole]

Yep i think looking at it now and a cart its just there to aid in positioning when you reset.