Lexmark CS421dn: A Comprehensive Review of Driver, Manual, and Toner

Welcome to our comprehensive review of the Lexmark CS421dn, a color laser printer that offers impressive speed and high-quality prints at an affordable price. In this article, we'll take a detailed look at the features and benefits of this printer, including the driver, manual, and toner. We'll also examine its strengths and weaknesses and help you decide if it's the right choice for your printing needs. So, let's dive in and explore what the Lexmark CS421dn has to offer!

Lexmark CS421dn Review: A Comprehensive Look


In today's fast-paced world, there is a high demand for fast and efficient printing. That's why Lexmark has come up with the Lexmark CS421dn - a printer designed specifically to meet the needs of small to medium-sized businesses. This affordable and reliable color laser printer boasts of fast print speeds, high-resolution printing, and flexible connectivity options. In this review, we'll take a closer look at the Lexmark CS421dn, its features, benefits, and drawbacks.

Design and Build

The Lexmark CS421dn doesn't disappoint when it comes to design and build quality. It has a sleek and modern look, with rounded edges and a matte black finish. It measures 11.5 x 17.4 x 16.6 inches (HWD) and weighs around 53.9 lbs. It's not the lightest or the smallest printer on the market, but it's still compact enough to fit on a desk or shelf. The device has a 250-sheet input tray and a 100-sheet multipurpose feeder that can handle a range of paper sizes and types. The output bin can hold up to 150 sheets of paper, which is quite impressive considering the printer's size.

Lexmark CS421dn

Features and Functionality

The Lexmark CS421dn is a versatile printer that can handle a variety of printing tasks. It can print up to 26 pages per minute in color and black and white and has a print resolution of 4800 x 600 dpi. The device uses PANTONE color matching, ensuring you get accurate and vibrant colors. It also has automatic duplex printing, allowing you to save paper and reduce printing costs. The printer comes with a 1-GHz dual-core processor and 256 MB of memory, ensuring it can handle demanding printing jobs without any lag.

The Lexmark CS421dn also has flexible connectivity options, including USB, Ethernet, and Wi-Fi. You can print from various mobile devices, including smartphones and tablets. The printer supports a range of operating systems, including Windows, Linux, and macOS. It also has a color LCD screen that makes it easy to navigate through settings and options.

The printer comes with a starter black toner cartridge that can print up to 1,400 pages and a starter color cartridge that can print up to 1,400 pages. Replacement toner cartridges are available in standard and high-yield versions, allowing you to choose the one that suits your needs. The high-yield cartridges can print up to 6,000 pages in black and 3,500 pages in color.

The Verdict

In conclusion, the Lexmark CS421dn is a great printer for small to medium-sized businesses that want fast, efficient, and high-quality printing. It has a sleek and modern design, flexible connectivity options, and a range of features that make printing effortless. The device is easy to set up and use, and replacement toner cartridges are readily available. However, the printer's size and weight may be a concern for some users. Overall, the Lexmark CS421dn is an excellent printer that delivers exceptional value for money.

Lexmark CS421dn Review: Driver, Manual, Toner

Lexmark CS421dn is a color laser printer that operates with fast speed and high-volume output. The printer model is a popular choice for small offices or workgroups with a frequent need for printouts. Alongside its impressive printing capacity, the machine is designed with several features tailored to improve productivity and yield high-quality results.

However, as with most printers, using the Lexmark CS421dn requires you to stay on top of driver updates and toner replacements for optimal performance. Below, we provide a comprehensive guide to the printer’s driver installation and updates, plus other details you need to know, like toner replacement and the user manual.

Lexmark CS421dn Driver: Installation and Updates

Downloading and Installing Drivers

The first step to set up the Lexmark CS421dn to your Windows, Mac, or Linux operating system is installing the driver. The following steps outline the driver installation process:

  1. Visit the Lexmark website and select the CS421dn model number under the "Support & Downloads" tab.
  2. Select the correct operating system and version of your computer system from the dropdown menu and click on "Filter."
  3. Download the driver and save it to your computer. Once the download is complete, launch the downloaded file to initiate the installation process.
  4. Follow the installation prompts to complete the process. Once completed, the printer should be visible and ready to use in your computer's "Printers & Scanners" settings.

Updating Drivers

It's imperative to keep the Lexmark CS421dn's drivers up-to-date to ensure it functions optimally and offers the latest features. Here's how to update the printer driver:

  1. Go to the Lexmark support website and download the latest driver version for your operating system.
  2. Close all applications and click on the downloaded file to initiate the installation process.
  3. Follow the prompts to complete the installation process and ensure to restart the computer if prompted.
  4. After the driver update, the printer should be available for use.

Troubleshooting Driver Issues

While the Lexmark CS421dn driver installation and updates should typically run smoothly, some issues might arise. Below are a few common driver-related issues and how to fix them:

  1. Driver Installation Error – The installation process might fail with an error message such as "Driver Installation Failed." You can resolve this by downloading the most recent driver version from the Lexmark website and running the setup as an administrator.
  2. Driver Compatibility Issues – Sometimes a new computer might have an updated operating system not supported by the current Lexmark CS421dn driver version. You can resolve this issue by finding the latest driver version from the Lexmark website, which should support the new operating system.
  3. Connectivity Issues – If you experience connectivity problems with your Lexmark CS421dn, check if the printer and computer are on the same network, and make sure the printer is switched on before initiating a print command. Also, ensure that the printer driver is installed correctly

Toner Replacement

Replacing toner cartridges should be an essential part of regular maintenance for the Lexmark CS421dn printer, as old or depleted cartridges can drastically affect print quality and overall performance. The printer takes four toner cartridges in black, cyan, magenta, and yellow, and all four cartridges need replacement once depleted.

You can check the toner levels using the printer control panel or the Lexmark mobile app, and a notification will appear on your computer when toner levels run low. When it's time to replace the toner cartridges, follow these steps:

  1. Ensure the printer is switched off and disconnect it from the AC outlet.
  2. Open up the printer's front cover and tilt the toner cartridges' handle to release them from the printer.
  3. Remove the toner cartridges from their packaging and remove the protective seal before sliding each cartridge into place in the designated slot. Ensure the cartridges are locked in position.
  4. Close the printer's front cover and plug the printer back into the AC outlet.

User Manual

For novice users, the Lexmark CS421dn user manual provides a comprehensive guide detailing how best to operate the printer, effectively troubleshoot any issues, and get the most out of its features. The manual also includes detailed instructions on how to set up the printer and replace toner cartridges. The manual is available on the Lexmark website as a downloadable PDF.


The Lexmark CS421dn printer model is an excellent choice for small offices or workgroups. With high-quality printouts, fast speed, and advanced features, it has everything to support a productive and efficient work life. Understanding how to install and update the drivers, replace toners, and where to find the user manual helps keep the printer functioning optimally and yields the best results. Remember, always refer to the manual or contact customer support for technical assistance with any issues that might arise.

Lexmark CS421dn Toner: Replacement and Cost

Identifying Compatible Toner Cartridges

When it comes to replacing a toner cartridge for your Lexmark CS421dn printer, it's essential to know which cartridges are compatible with your printer model. Using an incompatible cartridge can cause damage to your printer and lead to poor print quality.

To ensure you're purchasing the correct toner cartridge, refer to the printer's manual or search for your printer model on the Lexmark website. Lexmark often offers high-capacity toner cartridges that yield more pages than the standard cartridge and save you money in the long run.

Fortunately, you don't have to search far to purchase compatible Lexmark CS421dn toner cartridges. Several online and brick-and-mortar office supply stores carry these cartridges, including Staples, Best Buy, and Amazon.

Replacing Toner Cartridges

Replacing a toner cartridge for your Lexmark CS421dn printer is a simple task that only takes a few minutes. Here's a step-by-step guide:

  • Open the printer's front cover.
  • Remove the old toner cartridge by pulling it out by the handle.
  • Take the new toner cartridge out of its packaging and gently shake it back and forth to distribute the toner inside evenly.
  • Remove the protective tape from the toner cartridge.
  • Insert the new toner cartridge into the printer until it clicks into place.
  • Close the printer's front cover.

Calculating Toner Costs

Printing expenses can add up quickly, especially if you're using your printer frequently. Understanding how much each page costs to print can help you keep track of your expenses and focus on reducing printing costs as much as possible.

To calculate the cost per page, you'll need to determine how many pages you can print with each toner cartridge and the cost of each cartridge. For example, let's say a standard Lexmark CS421dn toner cartridge yields 1,500 pages, and it costs $100. To calculate the cost per page, divide the cartridge cost by its yield:

Cost per page = cartridge cost / cartridge yield

Cost per page = $100 / 1500 pages

Cost per page = $0.067 (rounded to the nearest cent)

This calculation reveals that it costs approximately 6.7 cents per page to print with a standard Lexmark CS421dn toner cartridge. Keep in mind that the cost per page can vary depending on the type of toner cartridge you use and the amount of toner used on each page.

In conclusion, identifying compatible toner cartridges, replacing them correctly, and calculating their costs are critical steps in managing your printing expenses. By following these simple guidelines, you can maintain the Lexmark CS421dn printer's high print quality while remaining cost-efficient.