We were told the quality of paper mattered and that the envelope should have the same high-end watermark that the resume sheet had. Inkjet printed resumes were discouraged because the quality back then was low and the resolution made anti-aliasing on the type come out weird. Laser printed only, please.
Laser printers were expensive AF for poor guys just out of college looking for a job.
My BJ200 ca. 1993 had awesome print quality, comparable to a Laserjet II, if you used slightly glossy paper (so the ink wouldn’t bleed) and you waited a bit for the ink to dry on each sheet.