HP 4200 Duplexer

[edcp]

What is the difference between the HP Q2439A and the Q2439B.
These are Duplexers for HP 4200 series.

Thank You,
Ed

[MichaelTech]

Hey now Ed. The `A model is for the 4200 and the B model is for the 4250, which is a faster printer.

[edcp]

I think I see either model fix all models of printers.4200,4250,4300,4350.ect.

[MichaelTech]

Well Ed, MY HP IRG for 2004,4200 series and 2006, 4250 series, happens to state that the 4250 series uses the "B" unit, and the 4200 series uses the "A" unit.
Both printer and duplexer must have the same speed configuration.

[edcp]

I should be OK. I just got a Brand new Q2439A one off Ebay for 90 Clams.
I have the 4200.

Ed