HP Wi-Fi Direct is disabled by default for an HP Laserjet Single-function printer with no screen, not HP-Direct network is shown
HP Laserjet Pro M15w
HP Laserjet Pro M102
Enabling Wi-Fi Direct should be done by connecting the printer to a computer with a USB or by connecting the printer to an existing wireless network using a computer or the HP Smart app.
Once connecting the printer to a wireless network and the blue light solid lit, HP Wi-Fi Direct is enabled in most cases.
Once installing the printer on a computer using USB and Enabling Wi-Fi Direct during the setup it enables immediately unless unplugging the USB, then it returns to Setup mode till the 2 hours setup period completes (Wi-Fi Direct becomes available after 2 hours)
If the printer is connected to the network (with a solid lit blue wireless light) and HP WiFi Direct is yet not enabled, press and hold the Resume/Cancel button till the power light starts blinking. a report is printed.
Browse the IP Address of the printer (as listed on the report) from any other device, select Wireless >> Wi-Fi Direct and make sure the feature is enabled.
If you have no computer or a wireless network available you may follow below steps as a workaround to enable wireless direct:
Power on the printer and ensure the wifi light is blinking, then connect your phone to the wireless network name starts with HP-Setup.
If no such network is shown, press and hold the Wireless button for more than 20 seconds, till the attention light starts blinking. upon the printer restarts, Setup mode is now available.
Under Network locate the Wi-Fi Direct option, enable it and take note of its password.
Note: as the printer is in Setup Mode you may see the Setup-SSID network for 2 hours, only once the Setup mode expired (after 2 hours), the Setup SSID should no longer be shown and the Direct SSID should be shown instead.
For the HP Laser 107w printer, Wi-Fi Direct is enabled by default.
To locate the Wi-Fi Direct password, press the (Resume/Cancel) button for about 10 seconds on the control panel and locate the password on the printed network configuration report.