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What is scanner speed, and dc controler?
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The scnner is part of the laser. It scans the beam acroos the page. DC controller is power suplly in the printer. You need to take the unit to a service facility if you don't know what these parts are. They are not user servicable parts.
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The scnner is part of the laser. It scans the beam acroos the page. DC controller is power suplly in the printer. You need to take the unit to a service facility if you don't know what these parts are. They are not user servicable parts.

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make sure you have the printer plugged direct to the wall and not into a power strip or surge protector sometimes they can throw false errors on laser printers 
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make sure you have the printer plugged direct to the wall and not into a power strip or surge protector sometimes they can throw false errors on laser printers

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I have a surge protector and I will try and see if removing it helps
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I have a surge protector and I will try and see if removing it helps

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I have a HP LaserJet IIIp and I am getting error code 52? The printer seems to get the data but then doesnt print it! What is error 52?
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I have a HP LaserJet IIIp and I am getting error code 52? The printer seems to get the data but then doesnt print it! What is error 52?

HP LaserJet IIIp: Error 52

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.