Transfers require specialty ink not found in most printers. Most Epson printers have it from the factory. C88+ for transfers no larger than 8X10. Workforce models for larger.
Off course they are copyrighted.....Every thing is as soon as it is created...Now it may turn out that whoever you are doing the work for, also owns the copyright in which case you will okay....That is so long as they have not infringed on someone else's intellectual property along the way....No those are team logos that i do for teams or leagues, its nothing copyrighted.