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I use a custom page set up(w-5.5 x l-8.5) at times but it prints on letter size paper... always left aligned.  

Recently, the certificate for my M507 had issues, a separate driver was installed, subsequently, my Mac was crashing so a new Mac was purchased.  Upon installing the correct print drivers for my M507, the custom page no longer prints left aligned on the letter size paper.  Is there a way to fix this so the print is left aligned again?

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