Imagine that we buy a monitor and its input does not match our video card, even though it has the same type.That's why certain standards apply. In polygraphy and graphics, such standards also exist - appropriate definitions of CMYK colors - key for the appropriate color reproduction.
Specified in advance formats for printing leaflets and business cards, so that they are comfortable and as uniform as possible.Without standards, even leaflets could be completely unreadable and even repulsive.
Such stickers on the body or even paint the entire company car in advertising.However, as everything can be overdone here too, so it is not worth refocusing the subject. Sometimes it's enough to use a simple sticker with the logo and phone number, which can be easily ordered from your local printing company. Most of them also offer low advertising stickers, which can be useful in any company.
Multifunction devices offer increasingly larger scanning resolutions, less margin, larger formats, etc. But still, such home printers are far behind the professional equipment used in professional printers.
Not to mention the much larger range of techniques used, which have nothing to do with those we know from home printers.