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HP Officejet 7740 - won't allow me to create a 9x12 envelope size

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Hi I'm having issue with 9x12 envelope sizes. Unfortunatley I've had this printer for a while so I can't return it.

I tried every step including removing and reinstalling the full software package.

ANy firmware update available to add 9x12 to the printer's listings?

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Welcome to the HP Forums, this is a great location to get assistance! I read your post and see that you are having unable to print 9x12 envelope size on HP Officejet 7740. I would like to help you resolve this issue. 


However, I will need a few details to provide an accurate solution,

  • When did this issue start?
  • Did you do any hardware or software changes?
  • How is the printer connected to computer, wired or wireless?
  • Which operating system is installed on the computer?               



Perform a power reset

  1. Turn on the printer, if it is not already on.
  2. Wait until the printer is idle and silent before you continue.
  3. With the printer turned on, disconnect the power cord from the rear of the printer.
  4. Wait at least 30 seconds.
  5. Reconnect the power cord to the rear of the printer.
  6. Turn on the printer.

Reply with the result of the above-mentioned steps, for further assistance.


I am an HP Employee

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