Variables of MTF Test

I bought a 1954 FED1 with an Lens 4871 Serial number Coated 50mm f:3.5 FED , an Elmar 5cms f:3.5 Copy.

I want to test the lens MTF.

I found from internet 48x31 cms Resolution Chart which prepared to ISO Standarts.

I will order an printout next week from a printer which has a large selection of big industrial printers . I will take pictures of chart for each aperture and order a HR 17MB Tiff Scans and test the big H printouts at the chart with MTF Extraction Software.

But

Printer resolution
Scanner resolution are the two things to itch me.

Do they effect the MTF test and what is the way to overcome this problem without sending the lens to Zeiss option

Umut