Digital BW, The Print

I asked this over in the Epson group, but thinking not everyone visits both groups, I'd like to repeat it here just to see what folks here have to say.

I use an Epson R1800, and am using refillable cartridges from MIS. Here's an example of a cartridge I use, Photo Black, followed by the MIS description:

ARC-TO541-EC EMPTY PHOTO BLACK TO541(TO54120) CARTRIDGE W/STD CHIP

I see the the word "ARC" is in the product name. Does that mean Auto Reset Chip? But then I see in the description it says the cartridge uses a "STD CHIP" which I assume means Standard. So does that mean the chip is not auto resetting, but needs to be reset with a chip resetter?

I've been manually resetting the chips on these carts for years. If I forget to reset a cart, the ink level graphic will show the cart as not yet full. So when I pull the cart and reset it, the graphic then shows full. This tells me they are not resetting automatically. But then why the ARC in the product name?

Sorry folks, but I am seriously confused!