A printer is a device that takes digital files from your computer and produces physical copies on paper

A printer is hardware that sits between your computer and paper. Your computer sends a document, image, or spreadsheet to the printer through a cable or wireless connection. The printer reads those instructions and uses ink or toner to put marks on paper in the exact pattern your computer sent. The result is a physical copy you can hold, write on, or file away.

Printers come in different types depending on what you need to print. An inkjet printer sprays tiny dots of liquid ink onto paper and works well for photos and colour documents at home. A laser printer uses heat and powder (toner) to fuse text and images onto paper and is faster and cheaper per page if you print a lot. All-in-one printers combine printing, scanning, copying, and sometimes faxing in one machine. Thermal printers print receipts or labels without ink. Each type has different running costs and speed, so the right choice depends on what you actually print.

Key Takeaways

  • A printer receives files from your computer and converts them into physical documents on paper using ink or toner.
  • Inkjet printers are affordable upfront but cost more per page, while laser printers cost more to buy but less to run if you print regularly.
  • Printers connect to computers through USB cables, Ethernet, or Wi-Fi, and your computer needs driver software to communicate with the printer.
  • All-in-one printers save desk space by combining printing, scanning, and copying in one device.

How a printer connects to your computer

A printer needs a physical or wireless link to your computer to receive print jobs. The most common connection is USB, where a cable runs directly from the printer to a USB port on your computer or a hub. This is straightforward and reliable, but the printer must sit close enough for the cable to reach.

Wi-Fi printers connect to your home or office network wirelessly, so you can print from anywhere in range without cables. You set this up once through the printer's menu or a mobile app, and then any device on that network can send jobs to it. Ethernet is a wired network connection used mainly in offices, where the printer plugs into the same network as your computer but through a network port instead of USB.

No matter which connection type you use, your computer needs driver software to talk to the printer. A driver is a small program that translates your computer's print commands into instructions the printer understands. Most printers come with a driver disc or you can read one from the manufacturer's website. Without the driver installed, your computer will not recognise the printer even if it is connected.

Inkjet versus laser: which type costs less to run

An inkjet printer typically costs between $50 and $200 to buy, making it the cheaper entry point. It works by spraying liquid ink from cartridges onto paper. The catch is that ink cartridges are expensive relative to how much you print. A single colour cartridge might cost $15 to $30 and print only 200 to 400 pages. If you print a few documents a month, this is fine. If you print dozens of pages a week, the cartridge costs add up quickly.

A laser printer costs $200 to $500 upfront, but toner cartridges are cheaper per page. A single toner cartridge might cost $50 to $100 but print 2,000 to 5,000 pages. The maths favour laser if you print more than a few hundred pages per month. Laser printers are also faster — they can print 20 to 40 pages per minute compared to 5 to 15 for inkjet. They produce sharper text and handle thicker paper better.

Choose inkjet if you print infrequently or need colour photos. Choose laser if you print a lot of documents, want speed, or need to keep running costs low. All-in-one printers come in both inkjet and laser versions, so you can explore the same cost logic to them.

What an all-in-one printer does

An all-in-one printer (also called a multifunction printer) combines four tools in one box: a printer, a scanner, a copier, and sometimes a fax machine. Instead of buying four separate devices, you get one that takes up less desk space and costs less overall.

The printer function works like any other printer — it receives files from your computer and prints them. The scanner function lets you convert paper documents into digital files on your computer. The copier function scans a document and prints a copy without needing a computer at all — you just place the paper on the glass and press a button. The fax function (if included) lets you send scanned documents over a phone line to another fax machine or email address.

All-in-ones are popular in small offices and homes because they handle multiple tasks without clutter. The trade-off is that if one part breaks, the whole machine may be out of service. A dedicated printer and scanner can be repaired or replaced separately.

Printer speed and page yield explained

Pages per minute (PPM) is the standard measure of printer speed. An inkjet printer typically prints 5 to 15 pages per minute. A laser printer typically prints 20 to 40 pages per minute. The higher the number, the faster the printer finishes a job. If you print 50 pages once a month, speed does not matter much. If you print 500 pages a week, a faster printer saves real time.

Page yield is how many pages a single cartridge or toner cartridge will print before running empty. Manufacturers test this under standard conditions — usually printing at 5% coverage (mostly blank pages with a little text). Real-world yield varies. If you print heavy graphics or photos, a cartridge will run out sooner. If you print mostly text, it will last longer. Always check the yield number on the cartridge box so you know what to expect.

Some printers offer high-yield cartridges that cost more upfront but print many more pages, lowering the cost per page. These are worth buying if you use the printer regularly.

Paper types and printer capabilities

Most printers handle standard 8.5 by 11 inch (letter) paper, but capabilities vary beyond that. Inkjet printers can print on glossy photo paper, matte paper, cardstock, and even fabric transfer sheets. They handle paper weights up to about 110 pounds (cardstock thickness). Laser printers work best with standard office paper and cardstock but struggle with glossy photo paper because the heat can damage the coating.

If you need to print photos regularly, an inkjet is the better choice. If you need to print envelopes, labels, or cardstock for business purposes, check the printer's specifications first — not all models handle these materials. Some printers have a separate tray for specialty paper so you can switch between regular and special stock without reloading.

Wireless printing and mobile devices

Many modern printers support Wi-Fi Direct or AirPrint (for Apple devices) or Google Cloud Print (for Android and Chromebooks), letting you print directly from a phone or tablet without a computer. You open a document or photo on your phone, tap print, select the printer, and the job goes straight to it.

To use wireless printing, the printer must be on the same Wi-Fi network as your phone or tablet. Some printers also let you email a document to a special printer address, and it will print automatically. This is useful if you are away from home and want to print something when you arrive.

Not all printers support mobile printing, so check the specifications if this matters to you. Newer models almost always do, but older or budget models may not.

Frequently Asked Questions

Do I need to install driver software if my printer is wireless?

Yes. A wireless connection means the printer can receive data over your network, but your computer still needs driver software to format the document correctly and send it to the printer. You install the driver once, usually from the manufacturer's website or a disc that comes with the printer.

What is the difference between a printer and a scanner?

A printer takes digital files from your computer and puts them on paper. A scanner takes paper documents and turns them into digital files on your computer. An all-in-one does both. They are opposite processes.

Can I print from my phone without Wi-Fi?

Not directly. Your phone and printer need to communicate, which requires either Wi-Fi, Bluetooth, or a USB connection. Some printers support Bluetooth, which works over short distances without Wi-Fi. Check your printer's manual to see if Bluetooth is an option.

Why does my printer say it is out of ink when the cartridge still has ink in it?

Printers have a sensor that estimates ink level based on how much the cartridge has been used, not by actually measuring what is left. The sensor can be wrong, especially if the cartridge sat unused for a long time. You can usually override the warning and keep printing, though quality may drop.

Is a colour printer worth the extra cost?

It depends on what you print. If you print mostly text documents, a black-and-white printer is cheaper to buy and run. If you print photos, graphics, or colour documents regularly, a colour printer is worth it. Colour cartridges cost more, so factor that into your decision.