From the course: CompTIA A+ Core 1 (220-1101) Cert Prep

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Laser printers

Laser printers

From the course: CompTIA A+ Core 1 (220-1101) Cert Prep

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Laser printers

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- One of the great things about being an old tech are terms like paperless office. I remember, I'm serious kids, in the mid-1980s where people were talking about how paper is going away and it's just a matter of time. Well, ha, I can't tell you how much money I've made fixing printers in those 30 some odd years. So in this episode, I want to talk about probably my most favorite of all printer types, a laser printer. Now, a laser printer's actually a pretty interesting device. They've been around for a while now, but the cornerstone of what makes a laser printer work is this guy right here. This is a toner cartridge. Now, that's interesting enough, but in particular, do you see this green-colored roller here? This is what we call a photosensitive drum, and this is the cornerstone of all laser printers. You see, the idea behind laser printing is that you can use a laser to hit that little photosensitive drum. Now, that photosensitive drum can hold an electrical charge, a static charge…

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