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In this guide, we're going to help you clean your HP Deskjet 6840 so that it keeps on printing the documents you need and the photos you love!
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Start by turning the printer around so you can work on the backside of the printer.
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Use both hands to press the two grooves on the back of the printer. Simultaneously press both grooves down and in.
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Remove the back panel from the printer.
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Use a screwdriver to remove each visible screw.
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Using two hands, pull out and remove the rear support structure.
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Carefully remove the large, black shell that encases the internal body of your printer.
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Gently remove the shell from the base of the printer by placing your hands at the corners and firmly lifting the shell until it pops off of the base. Do not pry or bend the shell.
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Use a screwdriver to remove the screws from the printer carriage assembly and the green plastic motherboard.
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Gently loosen the motherboard from its base, but do not fully remove it.
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Use a screwdriver to remove the screws securing the motor carriage.
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If you need to replace the motor, remove the screws from the motor housing.
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Carefully lift the motor out of the housing with your fingers and replace it with a new one.
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By now, your printer should resemble the one in the photograph.
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Use the screwdriver to remove any remaining screws.
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To clean the exterior of the device, generally a soft, moist cloth can be used to wipe away any dust, smudges, or other granules that may have collected on the device. Be careful not to dampen the cloth too much, as excessive water (or other liquids) slipping into the interior could damage the device.
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There may be an amount of ink residue that builds up inside the device, so be thorough when sterilizing your printer.
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However, regarding general maintenance, the ink cartridges and carriage are your main concern, as most other residue is normal build-up for this device.
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To maintain the ink cartridges, you simply wipe them down with a soft, clean cloth.
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However, if you find the dried ink stains disconcerting, know that they are character of a healthy, functioning device. You can still wipe them off, but be cautious not to rub too hard- you risk denting or otherwise damaging the machine.
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To reassemble your device, follow these instructions in reverse order.
To reassemble your device, follow these instructions in reverse order.
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New Mexico State, Team 1-5, Sheppard Spring 2014 crwdns2935289:0New Mexico State, Team 1-5, Sheppard Spring 2014crwdne2935289:0
NMSU-SHEPPARD-S14S1G5
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