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Press home, back and then home twice. Easiest to see in this video: <a href="https://www.youtube.com/watch?v=NGWWk9QZzRo" rel="ugc">https://www.youtube.com/watch?v=NGWWk9QZzRo</a>
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Press home, back and then home twice. Easiest to see in this video: https://www.youtube.com/watch?v=NGWWk9QZzRo [https://www.youtube.com/watch?v=NGWWk9QZzRo]

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According to <a href="https://h30434.www3.hp.com/t5/Inkjet-Printing/HP-PageWide-Pro-MFP-477-dw-hard-reset/td-p/5851404" rel="ugc">this HP support page</a>, factory reset is accessed by first pressing <b>Home, Back, Home, Back.</b> That gets you to a hidden menu. From there continue as follows:<br />
<br />

<ul>
<li>On the Control Panel, touch the Settings Gear.</li>
<li>Select: Printer Management</li>
<li>Select: Restore</li>
<li>Select: Restore Factory Defaults, and select Continue</li>
</ul>
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According to this HP support page [https://h30434.www3.hp.com/t5/Inkjet-Printing/HP-PageWide-Pro-MFP-477-dw-hard-reset/td-p/5851404], factory reset is accessed by first pressing Home, Back, Home, Back. That gets you to a hidden menu. From there continue as follows:


 * On the Control Panel, touch the Settings Gear.
 * Select: Printer Management
 * Select: Restore
 * Select: Restore Factory Defaults, and select Continue

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Many thanks, @Brain B and @hdhondt. Will try both of these today and let you know how it goes!
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Many thanks, @Brain B and @hdhondt. Will try both of these today and let you know how it goes!

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I've taken on a new client, whose printer, a HP 477DW is locked with a PIN (4 digits I think). I need to get access to the printer. Does anyone know how to bypass the PIN, or do a factory reset on said printer/scanner.
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I've taken on a new client, whose printer, a HP 477DW is locked with a PIN (4 digits I think). I need to get access to the printer. Does anyone know how to bypass the PIN, or do a factory reset on said printer/scanner.

Reset the PIN on a HP 477DW printer/scanner

A printer is a peripheral which makes a persistent human readable representation of graphics or text on paper or similar physical media. Traditional printers are being used more for special purposes, like printing photographs or artwork, and are no longer a must-have peripheral; 3D printing has become an area of intense interest, allowing the creation of physical objects. An image scanner is a device that optically scans images, printed text, handwriting, or an object, and converts it to a digital image. Hand-held scanners, where the device is moved by hand, have evolved from text scanning "wands" to 3D scanners used for industrial design, reverse engineering, test and measurement, orthotics, gaming and other applications.

Printers and Scanners

This topic area includes legacy versions of Windows prior to Windows 2000: Windows 3/3.1, Windows 95 and Windows 98, plus any other Windows-related versions including Windows Mobile.

Windows OS

A peripheral device is defined as a computer device, such as a keyboard or printer, that is not part of the essential computer (i.e., the memory and microprocessor). These auxiliary devices are intended to be connected to the computer and used in conjunction with it. Examples of external peripherals include mouse, keyboard, printer, monitor, external Zip drive or scanner, while internal peripherals include CD-ROM drive, CD-R drive or internal modem. Today's new devices, such as tablets, smartphones and wearable computing devices are considered peripherals as they can be connected and used on a computer system. The difference, however, is that these devices can run independently of the computer system.