You didn't say whether they're still laying at this time, or if they just look faded and a little raggedy.
At only a year old, they're NOT done laying. If they haven't slowed down or stopped laying, and started molting yet, they will before long. Mine usually molt in the fall, sometimes early, sometimes late, depending on the weather.
Molt may last anywhere from a month to 4 months, depending on the overall health of the birds, whether they have any parasites, (which can also cause them to become pale and raggedy) and what kind of diet they have while molting. I find mine get finished with molting sooner, and back to normal laying faster, if I increase protein to 22% and give them black oil sunflower seeds mixed with their whole corn treat every day. The corn and SSS is a snack, though, the main diet is the 22% protein feed, plus they free range, out in open fields and woods, all over a big acreage.
I once had what I think was a Cherry Egger, she still laid about 5 eggs a week when she died, on the nest laying an egg, at over 8 years old. I have some hens ranging from 5-7 years old that still lay reasonably well. Not daily, like a 1 or 2 year old, but most lay 4-5 eggs a week.
BTW, when hens are laying, they get paler combs and legs. Non-layers will be prettier. Young pullets who don't lay yet have pink combs, the get redder as point of lay approaches. Then once they begin to lay steadily, the red gets washed out a bit. Not quite pink like before, but faded red.
Lots of people choose to butcher hens at 1 or 2 years old and replace them, and from what I've read, many are under the impression that hens are all used up at that age. That's not really the case, most hens will lay for years.
If you do decide to butcher them, read up on cooking methods for older birds. There are tons of cooking tips on BYC, for older birds. Don't cook them the same way as supermarket chickens. Low temp, like 200-275F, for a long, long time, is the way to cook them. Be sure to let them age in the fridge a few days before either cooking or freezing them, to let the rigor pass, and tissues soften a bit.