Today I bought a Brita FF-100 ( Black & Crome) model. There was no green light flash after I inserted the cartridge. I don't if it's safe drinking or not.

refer to instruction.
Move the filter handle toward you to activate the filtered water

When you initially soak the bag in water make sure to squeeze it lightly and shake to release all the air bubbles. Also, you should pour out the first couple pitchers of water after using a new filter as it takes time to break in. This way all of the gray or black filter water will be gone by the time you wish to drink. For more water filter and pitchers go to www.freshwatersystems.com.

If you do the distillation process exactly right it is almost 100 percent safe to drink the distillated water. Although it is very difficult to do it right and the distillation process is very slow and consumes a lot of energy therefore very expensive.

1. Lift the printer access door, then remove the ink cartridges from the printhead.
2. Verify that the label on the ink cartridges is intact, and the cartridges are not damaged.
3. Verify that only KODAK branded ink cartridges are installed.
4. Insert the ink cartridges into the printhead, then press down firmly until you hear them click into position.
5. Close the printer access door, then make the same print.

If issue still continues:

1. Verify that inkjet paper is loaded in the paper tray.
2. Press and hold Cancel + Copy/Resume simultaneously until the On/Off light flashes green. The On/Off light continues to flash during the cleaning procedure.
3. When the On/Off light glows a steady green, press and hold Scan + Copy/Resume simultaneously until the On/Off light flashes, then wait for the demo sheet to print.

If issue still continues:

the printhead for your printer is in need of replacement. Contact Kodak

Best of Luck

For that problem kindly try doing the ff:

* Re-seat the inks both color and black then try printing
* Re-seat the Printhead of the printer then print again
* if problem still persist call 1800 421 6699 and the technical rep will replace the printhead

Hope this will help

Thanks
Byron

The Print Cartridge Status light flashes when one or both of the print cartridges is improperly installed or malfunctioning.

1. Open the printer's top cover.
2. Remove and re insert both the black and colour print cartridges and try printing again.

If the problem persists then you need to replace either the black or the colour print cartridge.

I see this alot when I do installs...contact the Brita tech support
1-800-24-BRITA (US)

Want a free adapter and patient enough to wait for a couple of weeks to get them?
"To receive a special adapter free of charge, call 1-800-24-BRITA or 1-800-387-6940 (CANADA)."
Call the number above and a voice prompt will give you instructions on how to get your adapter for free. 2 weeks might be too long but the best thing is it is made of stainless steel/chrome and it comes in 3 different kind of adapters with rubber washers.

You can order from amazon. Usually ship in 1 day. I'm very satisfied.
But, Brita filters are not the only filters on the market. There are better Brita alternative filters.

https://www.izreview.com/best-water-filter-pitcher-replacement-cartridges/