Printer Technologies Part 1

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Time
12 hours 9 minutes
Difficulty
Beginner
CEU/CPE
12
Video Transcription
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>> This is lesson 11.1 Printer Technologies Part 1,
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an overview, installation,
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and maintenance of printer technologies.
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Let's go and get started.
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In today's lesson, what we're going to do is talk about
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two different printers within
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our printer technology series.
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We are going to talk about impact printers
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or dot matrix printers,
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and we're going to talk about thermal printers.
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We're going to go over the details,
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the in and outs about those printers,
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and give you a lot of information about those.
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Again, a longer series of
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printer technologies for your CompTIA plus.
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Let's go and get started. Impact printers
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or dot matrix printers.
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Impact printer is a type of printer that makes
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an impact on a page to create a print output.
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A dot matrix printer is one of
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the most common forms of impact printers.
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Now, the dot matrix printer has
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a series of pins on the print head that are
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pushing through a ribbon
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impacting the page to make characters and letters.
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How this works is there is a ribbon that's inside of
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a dot matrix printer and there's pin hands,
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we'll see on the next slide.
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Printers have different numbers of
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pins depending on the type of printer.
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But those pins punched in through to the paper,
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rather, different characters
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that is preying printed out.
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As you can see, the image here in the center
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of the screen at the bottom is a series of
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letters and this is how the dot matrix printer
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prints letters and numbers
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and characters in the forms of little dots.
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Again, these dots are
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little pin impacts across the ribbon striking the paper,
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leaving the mark on the paper.
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Of course, on the bottom right-hand side,
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that's a picture of a dot matrix printer.
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These printers are still quite popular.
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They were very popular in the early '80s and '90s,
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they are still quite popular now.
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They print on a series of perforated papers,
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unlike one continuous long-form,
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which we'll see in a moment.
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These were used for printouts for receipts,
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other type of paperwork in offices at one time.
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This at one time was
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the primarily most common type of printer found.
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Now, the printer head has a matrix of pins and
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hence the name dot matrix that are
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being used to form these letters
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and characters on the page.
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The print head moves back and forth
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across the page and while it's moving,
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the pins will push into the paper to
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create a character or a letter on the page.
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Again, depending on the type
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of printer head on the type of printer,
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you may have a type of printer that has nine pins,
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18 pins, or 24 pins.
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As you are typing characters,
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it can be Jane walk the dog and
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each character will be coming
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across that printer to these print hands.
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There will be printing out in
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a series of letters across that ribbon,
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punching through the ribbon onto the paper.
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Then you can see
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the picture of the pins and how they will
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look on the printer,
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and as well as the printer itself.
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Now, the ribbon cartridge
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is definitive to these printers.
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The ribbon for the dot matrix printer is a case that
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contains a one long ribbon and that ribbon is sent
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through multiple times until it's difficult to read
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or the output of the page or
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your characters are starting to get faded.
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But because of this as a single unit,
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it's very easy to remove out of the printer,
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insert a new one, and you can
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have a fresh ribbon that's ready to go.
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That entire cartridge comes out of
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the printer and is being replaced in that printer.
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Very easy maintenance there as
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far as slam sliding in and out.
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Again, the concept here is you have
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the printer head with the pins.
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This ribbon fits in between the pinheads and the paper.
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As the characters come
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through the printer it prints your print job,
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the print heads punched through or
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punch the ribbon onto the paper,
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and characters are left on the paper.
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Now, speaking of paper for the dot matrix,
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I mentioned earlier that and if you remember,
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if you are familiar with these printers,
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the dot matrix printer has
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a long continuous feed paper shown on the right.
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This came in normally boxes or cartons and the paper
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has a series of peripherared sections and edges.
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Those edges are used in
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the printer and being
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fed by something called a tractor feed.
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Paper for the dot matrix printer is, like I said,
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continuous sheets of paper that are
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on one very long piece of paper.
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Paper for the dot matrix printer is
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on a continuous long sheet of
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paper with perforations in
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the middle so you can separate them.
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You fade this paper through the printer
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and there are also small holes on the side,
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which is called tractor feeds.
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The tractor feed uses these holes
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to be able to pull the paper through.
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The tractor feed was a series
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of wheels with spikes on them and
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these spikes or these knobs
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would lineup in the paper and it
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would advance the paper as it's
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printing or keep the paper being fed through the machine.
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Again, this was one long continuous sheet of paper.
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Generally, the paper would be set up under the printer,
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it would be fed into the printer,
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and you're ready to print.
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As it continues to print,
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it's continuing to pull paper out of that box.
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Thermal printers, another printer in
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our print technology series.
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The thermal printer is a printer that
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does not use ink or toner,
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but printer uses a special type of
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paper that's sensitive to heat when sent through
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the thermal printer portions of the page are heated
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and every place that's heated turns black.
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This is generally used for
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receipts and it's a very quiet operation.
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Your pricing isn't allowed to retail shops
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and stores, a receipt printers.
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Again, when you send a print job to
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this parts of the heating element are heated
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and those characters or whatever is being printed is
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what's coming out on that thermal paper.
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You can see the image on the right,
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there is a type of receipt,
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their shipping label and again that's for heat
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being generated across the heat element,
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and that transfers rights to the paper.
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Now, the thermal printer is
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known for its quiet operation
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due to its a very few moving parts.
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Really, the only part that's moving in a thermal printer
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is the fee that pulls the paper through.
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Other than that they have the heating element
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that the paper rolls across,
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but that's not moving, it's fixed.
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[NOISE] Now,
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the heating element inside of a thermal printer
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heats certain parts of the paper passing through
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the entire length of
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the paper is covered by that heating element.
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Now, as the paper is going by the heating element
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is only heating parts
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of the element at a particular time.
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Again, as you are typing in characters
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and you want those characters to be printed,
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that print job is only heating certain parts of
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the heating element to form
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those characters on the thermal paper.
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The heating element will get dirty over time,
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it will need cleaning.
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Different type of ways
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that manufacturers recommend cleaning
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the heating element using a liquid cooler,
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IPA, Isopropyl alcohol,
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or cleaning pin,
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and also there is something called a cleaning card.
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It's a card that you run through
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the thermal printer and it cleans
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the element as well as the paper pathways.
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Now, the paper that goes into
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a thermal paper printer is a special type of paper.
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It's a paper that's very sensitive to heat.
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Its specialized and chemically
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treated and various sized papers
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match machine to
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machine so you need to check with
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your machine's vendor to
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make sure you have the proper paper.
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If you don't use the proper paper in the proper machine,
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it will cause jams and will not go through.
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As you can see from the image on the right,
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it's very easy to load the paper in a thermal printer.
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You have probably seen this at a checkout at
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a grocery store or some type of retail market
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where you are maybe
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at the register and they are out of printer paper,
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and it's easy, you just open it up and they just
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pull the old spool out,
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[NOISE] put the new role in,
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feed it through, close it and there
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is normally a feed or advanced button
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to advance the paper through and once
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that event is through it's ready to print again.
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It's that easy, simple operation
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to maintain this as far as refilling paper.
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That was just two of our printers
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in our printer technologies series.
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The impact printers or a dot matrix printers.
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We talked about the print head, the ribbon,
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the tractor feed impact, paper maintenance.
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We talked about the thermal printer,
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the feed assembly, the heating element,
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and proper maintenance on that one.
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That's it for this lesson and we
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will see you in the next lesson.
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