M426 Auto Duplex Printing Fails on Windows 10

[-BS-]

The Laserjet Pro MFB M426fdw printer prints auto duplex on windows 7 PC just fine but will not print auto duplex on Windows 10 PC.  It will only print duplex manually.  Have reloaded current driver which didn't help.

[dansdaduk]

The 'automatic discovery' feature used by some drivers on installation (or update) doesn't always work; ensure that the driver knows that a duplex unit is present on the printer (assuming that one is present):

• For the printer instance in question, bring up the Printer properties dialogue.
• Select the Device settings tab.
• Ensure that the duplex unit is set to Installed rather than Not installed.

You'll probably need to be logged in with administrator credentials in order to change the device settings.

[XZH]

---

@-BS- wrote:

The Laserjet Pro MFB M426fdw printer prints auto duplex on windows 7 PC just fine but will not print auto duplex on Windows 10 PC.  It will only print duplex manually.  Have reloaded current driver which didn't help.

---

Hi,

if your printer driver is with Windows update from win 7 to win 10. if the upgrade works not, I will recommend you to download the new driver for win 10 OS on HP.COM for M426 as below:

https://support.hp.com/cn-zh/drivers/selfservice/hp-laserjet-pro-mfp-m426-m427-series/7458649

[It_is_Escondido]

I found that Dansdaduk's description helped in one case, but in another case, it required a second step.

First step per Dansdaduk's description:

If the above still doesn't work, try this additional step when printing:

[TalRob]

To Dansdaduk...thanks a bunch!