Do digital cameras lose photo quality over time?

I have had a fuji finepix cameral for about 4 1/2 yrs now, and it has been great until recently. Most of my pics are coming out less than sharp. I was always very happy with them in the past. Do digital cameras wear out over time? Or is there another explanation? I checked my settings & they all look the same... show more I have had a fuji finepix cameral for about 4 1/2 yrs now, and it has been great until recently. Most of my pics are coming out less than sharp. I was always very happy with them in the past. Do digital cameras wear out over time? Or is there another explanation? I checked my settings & they all look the same as always. I am even using a new memory card. Sometimes, I will have taken 5 or so pics in a row, in the same setting, and maybe 2 will look great, and the others will be fuzzy - not like motion - even the background is out of focus.
Any suggestions?
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