Hi, I'm Robert and I'll be helping you with your printer question.
1 the print head is clogged
There is a cleaning routine on the printer menu
It is usually under maintenance or settings or tools or ink
2 you are printing on plain paper but the program printing is set to print on photo paper or photo quality
Glossy photo paper does not absorb ink like plain paper so the printer puts a lot less out if it thinks it is printing to photo paper
there might be something stuck under the print head that is keeping it from getting close enough to the paper to print correctly
or it might even have been bent a bit if the jam was bad enough.
you can try doing a print head alignment
you can remove the printhead and put it back
but in that printer it is a royal pain.
this video shows how but i don't know that i would recommend it for a non professional.