HP printer copy problem

ramy

New to this forum
Few days back got HP 2545 AIO printer. When I copy A4 sized page, bottom 1 cm of A4 page is missing on the output. The scanner light does not reach end of A4 flatbed for copy. it goes somewhere upto letter page size mark. HP Support is telling that this is as per print margins for A4 size. Does anyone has the same printer and have you noticed any such issue.
 
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