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Thank u everyone for your inputs, the problem was i failed to notice that the black ink cartridge was empty too and this was the cause, besides cleaning the print heads.
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Thank u everyone for your inputs, the problem was i failed to notice that the black ink cartridge was empty too and this was the cause, besides cleaning the print heads.

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My OS is win 10 pro 64 bit and I have the above printer for a few years now. &nbsp;The cartridge was depleted and I replaced them with original ones ordered from Quill. &nbsp;But after replacing I still get the same error that the cartridges are depleted and asking me to replace them. &nbsp;<br />
I removed the power cables, replaced it and &nbsp;also unplugged the usb cable and replugged it in. &nbsp;Then I switched back the printer to on, but I still get the same error on the printer, and as well as on my pc, like the attached. <br />
Hope the experts can please suggest a solution to this, thank u.<br />
<a href="https://filedb.experts-exchange.com/incoming/2016/07_w31/1108881/HP-error.JPG" target="_blank" class="file-inline" title="error message that appears on my pc screen (38 KB)"><svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 512 512"><path d="M67.508 468.467c-58.005-58.013-58.016-151.92 0-209.943l225.011-225.04c44.643-44.645 117.279-44.645 161.92 0 44.743 44.749 44.753 117.186 0 161.944l-189.465 189.49c-31.41 31.413-82.518 31.412-113.926.001-31.479-31.482-31.49-82.453 0-113.944L311.51 110.491c4.687-4.687 12.286-4.687 16.972 0l16.967 16.971c4.685 4.686 4.685 12.283 0 16.969L184.983 304.917c-12.724 12.724-12.73 33.328 0 46.058 12.696 12.697 33.356 12.699 46.054-.001l189.465-189.489c25.987-25.989 25.994-68.06.001-94.056-25.931-25.934-68.119-25.932-94.049 0l-225.01 225.039c-39.249 39.252-39.258 102.795-.001 142.057 39.285 39.29 102.885 39.287 142.162-.028A739446.174 739446.174 0 0 1 439.497 238.49c4.686-4.687 12.282-4.684 16.969.004l16.967 16.971c4.685 4.686 4.689 12.279.004 16.965a755654.128 755654.128 0 0 0-195.881 195.996c-58.034 58.092-152.004 58.093-210.048.041z"/></svg>HP-error.JPG</a>
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error message that appears on my pc screen

HP-error.JPG

My OS is win 10 pro 64 bit and I have the above printer for a few years now.  The cartridge was depleted and I replaced them with original ones ordered from Quill.  But after replacing I still get the same error that the cartridges are depleted and asking me to replace them.  
I removed the power cables, replaced it and  also unplugged the usb cable and replugged it in.  Then I switched back the printer to on, but I still get the same error on the printer, and as well as on my pc, like the attached. 
Hope the experts can please suggest a solution to this, thank u.

HP Office Jet pro 8600 printer

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

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.

Peripherals

Hardware includes cell phones and other digital living devices, tablets, computers, servers, peripherals and components, printers and scanners, gaming consoles, networking hardware such as routers, hubs, switches and modems, storage devices and security equipment such as firewalls and other appliances.