For Google Web Fonts, a medium weight has a value of 500, so I'm unsure why the decade old HP printer bug workaround is relevant :)
Here are the label:number weights Google Web Fonts uses:
Thin: 100 ExtraLight: 200 UltraLight: 200 Light: 300 Normal: 400 Regular: 400 Medium: 500 SemiBold: 600 DemiBold: 600 Bold: 700 ExtraBold: 800 UltraBold: 800 Black: 900 Heavy: 900
For Google Web Fonts, a medium weight has a value of 500, so I'm unsure why the decade old HP printer bug workaround is relevant :)
Here are the label:number weights Google Web Fonts uses:
Thin: 100
ExtraLight: 200
UltraLight: 200
Light: 300
Normal: 400
Regular: 400
Medium: 500
SemiBold: 600
DemiBold: 600
Bold: 700
ExtraBold: 800
UltraBold: 800
Black: 900
Heavy: 900