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Let’s check out the steps to smoothly perform the [HP Photosmart C4780](https://prompthelp.us/blog/hp-photosmart-c4780-wireless-setup/) setup by using the push button method. For that, start by setting up the wireless connection. From your home screen, choose the button next to scan. Click the button next to WPS and then click on the push button. Now, tap the corresponding button on a WPS-enabled router or another networking device. Lastly, tap took. These are the steps that you need to perform to set up the HP Photosmart C4780 WPS setup process.
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If you are facing the issue of [Epson won’t print black without color](https://prompthelp.us/blog/my-epson-printer-to-print-without-color-ink/), then choose the grayscale in the print options. Now, ensure that the print jobs are canceled. When the Epson monitor status appears, choose stop or cancel. Load the plain paper in the tray and tap to file. Now, choose print or print setup and then click on preference or properties. After that, open main and choose appropriate quality option settings. Select envelope or plain as the type settings. Choose the grayscale checkbox in the print options. Lastly, tap OK to close the printer settings window.