{"id":17772,"date":"2016-12-01T17:14:28","date_gmt":"2016-12-01T17:14:28","guid":{"rendered":"https:\/\/www.tonergiant.co.uk\/blog\/?p=17772"},"modified":"2026-02-05T11:10:23","modified_gmt":"2026-02-05T11:10:23","slug":"how-laser-printers-work-ultimate-guide","status":"publish","type":"post","link":"https:\/\/www.tonergiant.co.uk\/blog\/2016\/12\/how-laser-printers-work-ultimate-guide\/","title":{"rendered":"How Laser Printers Work \u2013 Ultimate Guide"},"content":{"rendered":"

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Updated 05\/02\/2026<\/strong><\/span><\/p>\n

Do you wonder how laser printers work? Far from it being some kind of magical spell, there are complicated processes involving lasers, mirrors, carbon, static and heat. Read on to find out how laser printers work and what they do.<\/p>\n

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box_shadow_horizontal_tablet=”0px” box_shadow_vertical_tablet=”0px” box_shadow_blur_tablet=”40px” box_shadow_spread_tablet=”0px” z_index_tablet=”500″ vertical_offset_tablet=”0″ horizontal_offset_tablet=”0″ background_pattern_color=”rgba(0,0,0,0.2)” background_mask_color=”#ffffff”]<\/p>\n

How does a laser printer work?<\/span><\/h2>\n

 <\/p>\n

    \n
  1. The printers laser beams your print onto a metal drum.<\/span><\/li>\n
  2. The drum uses static electricity to attract powdered toner to the drums cylinder.<\/li>\n
  3. The drum rolls the toner onto the paper in the form of your print.<\/li>\n
  4. The toner is melted & pressed onto the paper by heat from a fuser as it passes through its rollers.<\/li>\n
  5. Your print comes out of the printer.<\/li>\n<\/ol>\n

    Find the <\/span>full technical explanation here.<\/span><\/a><\/p>\n

    [\/et_pb_text][et_pb_text _builder_version=”4.9.1″ text_text_shadow_horizontal_length=”text_text_shadow_style,%91object Object%93″ text_text_shadow_horizontal_length_tablet=”0px” text_text_shadow_vertical_length=”text_text_shadow_style,%91object Object%93″ text_text_shadow_vertical_length_tablet=”0px” text_text_shadow_blur_strength=”text_text_shadow_style,%91object Object%93″ text_text_shadow_blur_strength_tablet=”1px” link_text_shadow_horizontal_length=”link_text_shadow_style,%91object Object%93″ link_text_shadow_horizontal_length_tablet=”0px” link_text_shadow_vertical_length=”link_text_shadow_style,%91object Object%93″ link_text_shadow_vertical_length_tablet=”0px” link_text_shadow_blur_strength=”link_text_shadow_style,%91object Object%93″ link_text_shadow_blur_strength_tablet=”1px” ul_text_shadow_horizontal_length=”ul_text_shadow_style,%91object Object%93″ ul_text_shadow_horizontal_length_tablet=”0px” ul_text_shadow_vertical_length=”ul_text_shadow_style,%91object Object%93″ ul_text_shadow_vertical_length_tablet=”0px” ul_text_shadow_blur_strength=”ul_text_shadow_style,%91object Object%93″ ul_text_shadow_blur_strength_tablet=”1px” ol_text_shadow_horizontal_length=”ol_text_shadow_style,%91object Object%93″ ol_text_shadow_horizontal_length_tablet=”0px” ol_text_shadow_vertical_length=”ol_text_shadow_style,%91object Object%93″ ol_text_shadow_vertical_length_tablet=”0px” ol_text_shadow_blur_strength=”ol_text_shadow_style,%91object Object%93″ ol_text_shadow_blur_strength_tablet=”1px” quote_text_shadow_horizontal_length=”quote_text_shadow_style,%91object Object%93″ quote_text_shadow_horizontal_length_tablet=”0px” quote_text_shadow_vertical_length=”quote_text_shadow_style,%91object Object%93″ quote_text_shadow_vertical_length_tablet=”0px” quote_text_shadow_blur_strength=”quote_text_shadow_style,%91object Object%93″ quote_text_shadow_blur_strength_tablet=”1px” header_text_shadow_horizontal_length=”header_text_shadow_style,%91object Object%93″ header_text_shadow_horizontal_length_tablet=”0px” header_text_shadow_vertical_length=”header_text_shadow_style,%91object Object%93″ header_text_shadow_vertical_length_tablet=”0px” header_text_shadow_blur_strength=”header_text_shadow_style,%91object Object%93″ header_text_shadow_blur_strength_tablet=”1px” header_2_text_shadow_horizontal_length=”header_2_text_shadow_style,%91object Object%93″ header_2_text_shadow_horizontal_length_tablet=”0px” header_2_text_shadow_vertical_length=”header_2_text_shadow_style,%91object Object%93″ header_2_text_shadow_vertical_length_tablet=”0px” header_2_text_shadow_blur_strength=”header_2_text_shadow_style,%91object Object%93″ header_2_text_shadow_blur_strength_tablet=”1px” header_3_text_shadow_horizontal_length=”header_3_text_shadow_style,%91object Object%93″ header_3_text_shadow_horizontal_length_tablet=”0px” header_3_text_shadow_vertical_length=”header_3_text_shadow_style,%91object Object%93″ header_3_text_shadow_vertical_length_tablet=”0px” header_3_text_shadow_blur_strength=”header_3_text_shadow_style,%91object Object%93″ header_3_text_shadow_blur_strength_tablet=”1px” header_4_text_shadow_horizontal_length=”header_4_text_shadow_style,%91object Object%93″ header_4_text_shadow_horizontal_length_tablet=”0px” header_4_text_shadow_vertical_length=”header_4_text_shadow_style,%91object Object%93″ header_4_text_shadow_vertical_length_tablet=”0px” header_4_text_shadow_blur_strength=”header_4_text_shadow_style,%91object Object%93″ header_4_text_shadow_blur_strength_tablet=”1px” header_5_text_shadow_horizontal_length=”header_5_text_shadow_style,%91object Object%93″ header_5_text_shadow_horizontal_length_tablet=”0px” header_5_text_shadow_vertical_length=”header_5_text_shadow_style,%91object Object%93″ header_5_text_shadow_vertical_length_tablet=”0px” header_5_text_shadow_blur_strength=”header_5_text_shadow_style,%91object Object%93″ header_5_text_shadow_blur_strength_tablet=”1px” header_6_text_shadow_horizontal_length=”header_6_text_shadow_style,%91object Object%93″ header_6_text_shadow_horizontal_length_tablet=”0px” header_6_text_shadow_vertical_length=”header_6_text_shadow_style,%91object Object%93″ header_6_text_shadow_vertical_length_tablet=”0px” header_6_text_shadow_blur_strength=”header_6_text_shadow_style,%91object Object%93″ header_6_text_shadow_blur_strength_tablet=”1px” box_shadow_horizontal_tablet=”0px” box_shadow_vertical_tablet=”0px” box_shadow_blur_tablet=”40px” box_shadow_spread_tablet=”0px” z_index_tablet=”500″ disabled=”on” disabled_on=”on|on|on”]<\/p>\n

    How Laser Printers Work<\/span><\/h2>\n

     <\/p>\n

    The printer\u2019s internal laser beams the image onto a coated metal cylinder called a drum, giving it a static charge. When the drum rolls around, the carbon toner particles with opposite static charge attract to it, transferring to the paper. It\u2019s then heated, fusing the toner to the page.<\/span><\/p>\n

    Find the <\/span>full technical explanation here.<\/span><\/a><\/p>\n

    [\/et_pb_text][\/et_pb_column][\/et_pb_row][et_pb_row][et_pb_column type=”4_4″ custom_padding__hover=”|||” custom_padding=”|||”][et_pb_text _builder_version=”4.27.2″ text_text_shadow_horizontal_length=”text_text_shadow_style,%91object Object%93″ text_text_shadow_horizontal_length_tablet=”0px” text_text_shadow_vertical_length=”text_text_shadow_style,%91object Object%93″ text_text_shadow_vertical_length_tablet=”0px” text_text_shadow_blur_strength=”text_text_shadow_style,%91object Object%93″ text_text_shadow_blur_strength_tablet=”1px” link_text_shadow_horizontal_length=”link_text_shadow_style,%91object Object%93″ link_text_shadow_horizontal_length_tablet=”0px” link_text_shadow_vertical_length=”link_text_shadow_style,%91object Object%93″ link_text_shadow_vertical_length_tablet=”0px” link_text_shadow_blur_strength=”link_text_shadow_style,%91object Object%93″ link_text_shadow_blur_strength_tablet=”1px” ul_text_shadow_horizontal_length=”ul_text_shadow_style,%91object Object%93″ ul_text_shadow_horizontal_length_tablet=”0px” ul_text_shadow_vertical_length=”ul_text_shadow_style,%91object Object%93″ ul_text_shadow_vertical_length_tablet=”0px” ul_text_shadow_blur_strength=”ul_text_shadow_style,%91object Object%93″ ul_text_shadow_blur_strength_tablet=”1px” ol_text_shadow_horizontal_length=”ol_text_shadow_style,%91object Object%93″ ol_text_shadow_horizontal_length_tablet=”0px” ol_text_shadow_vertical_length=”ol_text_shadow_style,%91object Object%93″ ol_text_shadow_vertical_length_tablet=”0px” ol_text_shadow_blur_strength=”ol_text_shadow_style,%91object Object%93″ ol_text_shadow_blur_strength_tablet=”1px” quote_text_shadow_horizontal_length=”quote_text_shadow_style,%91object Object%93″ quote_text_shadow_horizontal_length_tablet=”0px” quote_text_shadow_vertical_length=”quote_text_shadow_style,%91object Object%93″ quote_text_shadow_vertical_length_tablet=”0px” quote_text_shadow_blur_strength=”quote_text_shadow_style,%91object Object%93″ quote_text_shadow_blur_strength_tablet=”1px” header_text_shadow_horizontal_length=”header_text_shadow_style,%91object Object%93″ header_text_shadow_horizontal_length_tablet=”0px” header_text_shadow_vertical_length=”header_text_shadow_style,%91object Object%93″ header_text_shadow_vertical_length_tablet=”0px” header_text_shadow_blur_strength=”header_text_shadow_style,%91object Object%93″ header_text_shadow_blur_strength_tablet=”1px” header_2_text_shadow_horizontal_length=”header_2_text_shadow_style,%91object Object%93″ header_2_text_shadow_horizontal_length_tablet=”0px” header_2_text_shadow_vertical_length=”header_2_text_shadow_style,%91object Object%93″ header_2_text_shadow_vertical_length_tablet=”0px” header_2_text_shadow_blur_strength=”header_2_text_shadow_style,%91object Object%93″ header_2_text_shadow_blur_strength_tablet=”1px” header_3_text_shadow_horizontal_length=”header_3_text_shadow_style,%91object Object%93″ header_3_text_shadow_horizontal_length_tablet=”0px” header_3_text_shadow_vertical_length=”header_3_text_shadow_style,%91object Object%93″ header_3_text_shadow_vertical_length_tablet=”0px” header_3_text_shadow_blur_strength=”header_3_text_shadow_style,%91object Object%93″ header_3_text_shadow_blur_strength_tablet=”1px” header_4_text_shadow_horizontal_length=”header_4_text_shadow_style,%91object Object%93″ header_4_text_shadow_horizontal_length_tablet=”0px” header_4_text_shadow_vertical_length=”header_4_text_shadow_style,%91object Object%93″ header_4_text_shadow_vertical_length_tablet=”0px” header_4_text_shadow_blur_strength=”header_4_text_shadow_style,%91object Object%93″ header_4_text_shadow_blur_strength_tablet=”1px” header_5_text_shadow_horizontal_length=”header_5_text_shadow_style,%91object Object%93″ header_5_text_shadow_horizontal_length_tablet=”0px” header_5_text_shadow_vertical_length=”header_5_text_shadow_style,%91object Object%93″ header_5_text_shadow_vertical_length_tablet=”0px” header_5_text_shadow_blur_strength=”header_5_text_shadow_style,%91object Object%93″ header_5_text_shadow_blur_strength_tablet=”1px” header_6_text_shadow_horizontal_length=”header_6_text_shadow_style,%91object Object%93″ header_6_text_shadow_horizontal_length_tablet=”0px” header_6_text_shadow_vertical_length=”header_6_text_shadow_style,%91object Object%93″ header_6_text_shadow_vertical_length_tablet=”0px” header_6_text_shadow_blur_strength=”header_6_text_shadow_style,%91object Object%93″ header_6_text_shadow_blur_strength_tablet=”1px” box_shadow_horizontal_tablet=”0px” box_shadow_vertical_tablet=”0px” box_shadow_blur_tablet=”40px” box_shadow_spread_tablet=”0px” z_index_tablet=”500″ vertical_offset_tablet=”0″ horizontal_offset_tablet=”0″ background_pattern_color=”rgba(0,0,0,0.2)” background_mask_color=”#ffffff”]<\/p>\n

    What does a laser printer do?<\/span><\/strong><\/h2>\n

    There are many different <\/span>types of printer<\/span><\/a> available on the market today, and each uses various technologies to achieve a similar result of the printed page. The laser printer<\/strong><\/a> was the first to be invented and was done so in 1969 by <\/span>Gary Starkweather<\/span><\/a> while working in the Xerox product development team. His idea was to use lasers to imprint an image onto a copier drum which would then be transferred onto paper. Hence, the name \u2018Laser printer<\/strong>\u2019.<\/span><\/p>\n

     <\/p>\n

    Do laser printers need ink?<\/span><\/strong><\/h4>\n

    No, laser printers use coloured powder called toner which is very different from the liquid ink used in inkjet<\/a> printers.<\/p>\n

     <\/p>\n

    Are laser printers better than inkjet printers?<\/span><\/strong><\/h4>\n

    Why choose a laser printer over any other type of printer like an inkjet? Laser printers are very efficient and cost-effective to use when you need to print in large quantities over short periods. The toner cartridges<\/a> hold enough to print thousands, sometimes tens of thousands of pages, which is beyond the capabilities of most inkjet printers. This also makes them more cost-effective than inkjet printers.<\/span><\/p>\n

    However, as inkjet technology is advancing, there are now many business inkjet machines that are exceptions to the rule.<\/span><\/p>\n

    <\/a><\/p>\n

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    \u00a0<\/h3>\n

    How Laser Printers Work \u2013 Full Technical Explanation<\/span><\/h3>\n

    For those who love a good technical explanation including all the ins and outs, and science behind how a laser printer works, read on.<\/em> There are many moving parts and components inside a laser printer that work together to produce your final document or image, each have an important part to play. The key parts of the printer include, toner cartridges, image drum (also known as drum unit or photo-conductor), transfer roller or belt, fuser unit, laser, and mirrors.<\/p>\n

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     <\/p>\n

    Step-by-step<\/span><\/h3>\n

     <\/p>\n

      \n
    1. The moment you press print on your computer, tablet or mobile device, the information is sent to the printer memory, where the data is stored temporarily.
      <\/span><\/li>\n
    2. The printer begins to warm up. This is the point where you usually need to wait, and it\u2019s because the corona wire is heating up and getting ready to pass its positive static charge to the drum.<\/span><\/li>\n
    3. As the drum (coated metal cylinder) begins to roll, it received a positive charge across its whole surface. Some printers contain four drums, one for each colour \u2013 Cyan, Magenta, Yellow & Black.<\/span><\/li>\n
    4. The laser activates, and beams against a series of mirrors to reflect across the surface of the drum(s) imprinting the shape of your print using an opposite negative electrical charge.<\/span><\/li>\n
    5. The toner cartridge and hopper sat next to the drum(s) slowly releases positively charged carbon toner particles on to the drum as it turns. The toner is attracted to any areas of negative charge leaving positively charged areas of the drum untouched.<\/span><\/li>\n
    6. The transfer belt rolls the paper through the printer giving it a positive charge. As it passes the drum, the negatively charged toner is attracted to the page in the shape of your print.<\/span><\/li>\n
    7. The toner is then melted to the paper by hot rollers called the fuser unit, and voila, your page is printed.<\/span><\/li>\n<\/ol>\n

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      Here\u2019s a fantastic video created by Static Control<\/a> showing the whole process to help explain things a little better:<\/strong><\/p>\n