The Janome 4120QDC-G is a robust computerized sewing machine that combines durability with advanced technology, catering to both novice and experienced sewists. Known for its precision and versatility, the Janome 4120QDC-G is designed to enhance your sewing experience, making it ideal for a wide range of sewing projects.


Design and Build

Sturdy and Portable

  • Construction: The Janome 4120QDC-G boasts a sturdy build that ensures stability during sewing. This robust construction is paired with a relatively lightweight design, making the machine easy to transport.
  • Color: The machine features a Grapevine color scheme that adds a trendy yet timeless appeal to its appearance.

Key Features

Advanced Sewing Capabilities

  • 120 Built-In Stitches: Includes an extensive range of stitches for quilting, decorative sewing, and everyday tasks.
  • Twin-Needle Functionality: Allows for parallel line stitching, enhancing the finishing touches on garments and home décor projects.
  • Programmable Stitch Combinations: Offers the ability to create and save stitch sequences, providing personalized sewing experiences.

Ease of Use

  • Jam-Proof Bobbin System: Ensures smooth and reliable stitching without the risk of thread jams.
  • Control Panel and LCD Screen: A user-friendly interface that simplifies stitch selection and adjustments, enhancing control over your sewing projects.
  • Adjustable Sewing Speed: The machine allows for easy adjustment of sewing speed, making it suitable for a variety of sewing tasks and skill levels.


Power and Precision

  • Handling of Various Fabrics: The Janome 4120QDC-G is capable of sewing through multiple fabric types, from lightweight silks to heavy denim, without compromising on stitch quality.
  • Precision: Delivers precise stitching, essential for detailed quilting and intricate decorative work.

Convenience Features

  • Automatic Needle Threader: Simplifies the threading process, saving time and reducing eye strain.
  • Easy Stitch Adjustments: Makes it simple to switch between different stitch types and settings, allowing for seamless transitions during complex projects.

Value Proposition

Cost vs. Quality

  • Investment Worth: While the Janome 4120QDC-G may appear costly compared to some entry-level models, its superior build quality, extensive features, and reliability offer significant value for the investment. Less expensive alternatives often fall short in terms of durability and the range of features offered.

Janome 4120QDC Sewing and Quilting Machine Features Overview

The Janome 4120QDC is a versatile and feature-rich sewing machine that offers an impressive array of functionalities at a moderate price point. This model is especially attractive to those who want the capabilities of high-end machines without the associated cost. Here’s a detailed look at the standard features that make the Janome 4120QDC stand out in the market:

Comprehensive Stitch Options

  • 120 Built-in Decorative and Utility Stitches: Provides a wide range of options for creative and practical sewing, suitable for a variety of projects from garment making to home décor and more.
  • 7 One-Step Buttonholes: Automatically sizes the buttonhole to match the button, offering precision and ease of use.
  • 3 Alphanumeric Fonts: Includes fonts for basic monogramming and personalization, featuring Cyrillic characters for expanded design options.

User-Friendly Functionalities

  • Built-In One-Hand Needle Threader: Greatly simplifies the threading process, saving time and reducing frustration.
  • Snap-On Presser Feet: Allows for quick and easy changes between different presser feet, enhancing sewing efficiency.
  • Memorized Needle Up/Down: With down as the default setting, this feature is ideal for quilters and for projects that require frequent pivoting.
  • 7-Piece Feed Dog: Ensures smooth fabric feeding, critical for precise stitching and fabric handling.
  • Drop Feed: Facilitates free-motion sewing such as quilting or attaching buttons.

Convenience Features

  • Built-In Thread Cutter: Provides easy thread cutting, reducing clutter and streamlining the sewing process.
  • Locking Stitch Button: Secures the end of the stitching line, ensuring that stitches do not unravel.
  • Speed Control Slider: Offers control over how fast the machine sews, making it easier to handle complex stitches or intricate areas.
  • Twin Needle Guard: Prevents needle breakage, enhancing the machine’s ability to handle twin needle sewing safely.

Advanced Control and Customization

  • Easy Reverse Button: This makes it simple to reinforce stitches with a quick touch, enhancing the durability of the sewn items.
  • Start-Stop Button: Allows the machine to be used without the foot pedal, providing comfort and ease for long sewing sessions.
  • Stitch Pattern Memory Capability: Saves your favorite stitch combinations, allowing for easy reuse without reprogramming.
  • Auto Declutch Bobbin Winder: Prevents over-winding and ensures the bobbin is evenly wound for optimal sewing.

Enhanced Display and Adjustments

  • Extra High Presser Foot Lift: Gives more clearance for placing multiple layers or bulky fabrics under the presser foot.
  • LCD Screen with Enhanced Informational Display: Features a touchpad for easy navigation, providing all necessary stitch information at a glance.
  • Foot Pressure Adjustment: Adjusts the pressure on the fabric, which is crucial when sewing a variety of fabric types to avoid puckering or stretching.
  • Adjustable Stitch Length and Width: Offers customization of stitches to suit the specific needs of your sewing project, enhancing the finish and quality of your work.

Standard and Optional Accessories for the Janome 4120QDC-G Sewing Machine

The Janome 4120QDC-G is equipped with an extensive range of accessories designed to enhance the functionality and versatility of your sewing experience. Below, we detail the standard accessories included with your machine and explore the optional accessories that can be purchased to expand your capabilities.

Standard Accessories

The Janome 4120QDC-G comes with a carefully selected set of accessories to get you started on a variety of projects right out of the box:

  • Automatic Buttonhole Foot: Facilitates the creation of buttonholes automatically and precisely.
  • Blind Hem Foot (Non Adjustable): Ideal for creating nearly invisible hems on skirts and trousers.
  • Bobbin (Standard): Essential for all sewing tasks, ensuring smooth thread flow.
  • Extension Table: Provides an expanded work area, crucial for larger projects and quilting.
  • Foot Control C-1036: Allows for hands-free operation of the sewing speed.
  • Hard Case: Offers protection for your machine while not in use or during transportation.
  • Large Screwdriver: Useful for making adjustments or maintenance tasks.
  • Lint Brush: This helps keep your machine clean and free from fabric lint and thread clippings.
  • Needle Set: Various needles for different types of fabric.
  • Overedge Foot C: Designed for constructing professional-looking seams and hems.
  • Quilting Attachment Kit: Enhances the machine’s quilting capabilities.
  • Satin Stitch Foot F: For sewing dense zigzag stitching.
  • Zig-Zag Foot: A versatile foot for most basic sewing needs.
  • Zipper Foot: Essential for inserting zippers neatly and easily.

Optional Accessories

For those looking to further enhance their sewing machine’s capabilities, a wide range of optional accessories are available:

  • 1/4 Inch Ruler Foot and 1/4″ Seam Foot O2 (scant): Perfect for precise quilting and piecing.
  • 3-Way Cording Foot: Allows you to add decorative cording to your projects.
  • Beading Foot Set (Wide & Narrow): Ideal for adding beads and other embellishments.
  • Bi-Level Foot: Helps sewing on uneven fabric layers.
  • Binder Foot and Blind Hem Foot (Adjustable): For binding fabric edges and adjustable blind hems.
  • Bobbin Holder for Free Motion Quilting: Provides better tension control during free-motion quilting.
  • Button Sewing Foot and Buttonhole Foot (transparent): For attaching buttons and making buttonholes visible during creation.
  • Clear View Quilting Foot and Guide Set: Offers a clear view while quilting.
  • Convertible Even Feed Foot: Useful for even fabric feeding when quilting or sewing multiple fabric layers.
  • Ditch Quilting Foot and Edge Guide Foot: For “stitch in the ditch” quilting and precise seam guidance.
  • Flower Stitching Attachment and FM Quilting Paddles: For decorative stitching and free-motion quilting.
  • Fringing Foot and Gathering Foot: Creates fringes and gathers fabric.
  • Janome Square Bobbin Saver and Needle Threader: Keeps bobbins organized and simplifies threading.
  • Open Toe Darning Foot and Satin Stitch Foot: Provides a better view during darning and appliqué work.
  • Pintucking Cord Guide and Piping Foot: For creating pintucks and adding piping.
  • Rolled Hem Foot and Rotary Even Foot: Rolls fabric edges and provides an even feed.
  • Ruffler and Sliding Guide Foot: For ruffling fabric and guiding fabric edges.
  • Straight Stitch Foot and Straight Stitch Needle Plate: For straight stitching with enhanced precision.
  • Taping Guide Foot: Applies tapes and ribbons while sewing.
  • UltraGlide Foot and Vinyl Dust Cover: Helps fabric glide smoothly and protects your machine from dust.

Specifications Overview of the Janome 4120QDC Sewing Machine

The Janome 4120QDC is a feature-rich, computerized sewing machine that stands out for its versatility and comprehensive range of functionalities. Here’s a detailed look at its key specifications:

Key Features and Specifications

Built-in Stitches and Fonts

  • Stitches: 120 built-in stitches, providing a wide array of options for all types of sewing, from basic to complex projects.
  • Alphabet Fonts: Includes American, European, and Cyrillic fonts, enhancing the machine’s capability for personalization and decorative stitching.


  • One-Step Buttonholes: 7 styles of one-step buttonholes that automate the process, making it easy to create consistent and professional-looking buttonholes.

Sewing Speed

  • Maximum Sewing Speed: Achieves up to 820 stitches per minute, allowing for fast and efficient sewing on a variety of projects.

Stitch Dimensions

  • Maximum Stitch Length: Up to 5 mm, which is ideal for custom stitches and basting.
  • Maximum Stitch Width: Up to 7 mm, allowing for bold and decorative stitching styles.

Physical Dimensions and Weight

  • Product Dimensions: Measures 12 inches deep, 19.8 inches wide, and 16 inches high, making it a sizable machine with a substantial work area.
  • Product Weight: Weighs 22.4 pounds, which reflects its durable build and stable design suitable for extensive sewing tasks.


  • Warranty Coverage:
    • Mechanical Parts: 25 years, covering defects in materials and workmanship for the long-term reliability of the mechanical components.
    • Electrical Parts: 2 years, ensuring coverage against electrical faults.
    • Parts and Labor: 1 year, covering any labor and parts replacements needed due to manufacturing defects within the first year of ownership.

Fabric Compatibility for the Janome 4120QDC Sewing Machine

The Janome 4120QDC is a versatile sewing machine capable of handling a wide range of fabric types, making it suitable for various sewing projects from clothing and home décor to upholstery and accessories. Below is a detailed overview of the types of fabrics that are compatible with the Janome 4120QDC, as well as those that might present challenges.

Fabrics That Work Well with the Janome 4120QDC

Natural Fibers

  • Cotton, Linen, and Wool: These are staples in sewing and work beautifully with the Janome 4120QDC, which can easily handle these materials whether they’re light, medium, or heavy weight.

Fine Fabrics

  • Silk, Satin, Taffeta, Velvet: With the appropriate needles and settings, the Janome 4120QDC can sew these delicate fabrics without causing damage or puckering, thanks to its adjustable presser foot pressure.


  • Various Weights and Types: The machine’s adjustable settings and stitches, such as a stretch stitch or a zig-zag stitch, help in handling knits effectively, preventing skipped stitches.

Synthetic Fabrics/Blends

  • Rayon, Polyester: These materials are also well-accommodated, especially with the use of the correct needle and thread type to ensure the integrity of the stitches.


  • Heavier Fabrics: The machine’s extra high presser foot lift and strong feeding system allow it to handle thicker materials used in upholstery projects.

Leather and Suede

  • Lighter Weights: For best results, using a non-stick foot or a roller foot can help in feeding the material smoothly through the machine.

Multiple Layers or Thick Fabrics

  • Quilting and Layered Projects: The Janome 4120QDC is capable of sewing through multiple layers, particularly with its powerful feeding system and appropriate needle.

Fabrics That May Present Challenges


  • Real and Faux Fur: These materials can be too thick or slippery for the standard foot, and fur fibers can clog the machine.

Reptile Skin

  • Genuine and Faux Varieties: Typically very tough and may require a specialized machine designed for leather and heavy-duty sewing.


  • Thicker Weights: While the Janome 4120QDC can handle lighter canvas or twill, heavier grades might be challenging without the right needles and settings.


  • Non-Fabric Materials: These can stick to the presser foot or feed dogs, making them difficult to sew with standard equipment.

Tips for Best Results

  • Use Appropriate Accessories: Utilizing the right needles, threads, and presser feet (e.g., leather foot, walking foot) is crucial for handling difficult fabrics.
  • Adjust Machine Settings: Always modify the stitch length, width, tension, and presser foot pressure according to the fabric type.
  • Test on Scraps: Before beginning your project, test your settings on a scrap piece of your fabric to ensure the settings are correct and the material is compatible.

Maintaining your Janome 4120QDC sewing machine

Maintaining your Janome 4120QDC sewing machine is crucial for ensuring its longevity and optimal performance. Here’s a straightforward guide to help you keep your machine in top condition based on different maintenance activities and their recommended frequency:

Routine Maintenance Schedule

After Each Use

  • Clean Race Hook and Feed Dogs: It’s important to remove any lint, dust, or fabric debris from the race hook and feed dogs after each sewing session. This can be done using a small brush (often included with your machine) to keep the area clean and ensure smooth fabric feeding.

As Needed

  • Wipe Head with Soft Dry Cloth: Whenever you notice dust accumulating on the surface of the machine, gently wipe it down with a soft, dry cloth. This helps prevent any potential buildup that could migrate into the machine’s mechanisms.
  • Wipe Head with Soft Damp Cloth: If there are marks or stains that aren’t removed by a dry cloth, use a slightly damp cloth to wipe down the machine. Make sure the cloth is not wet enough to drip water into the machine components.
  • Service by Sewing Machine Repair Professional: It’s recommended to have your sewing machine serviced by a professional if you notice a decline in performance or when the machine has been used extensively over a long period. Even without obvious issues, a periodic professional service can help maintain the machine’s internal mechanics, especially before undertaking a major project.

Not Required

  • Lubricate: The Janome 4120QDC is designed to be lubricated at the factory for its lifetime under normal home sewing conditions, so you should not need to lubricate it yourself. Always refer to your machine’s manual, as applying oil improperly can damage the machine.

Additional Tips for Maintaining Your Janome 4120QDC

  • Cover Your Machine: When not in use, cover your sewing machine with the hard cover provided or with a dust cover to protect it from dust and dirt.
  • Change Needles Regularly: Replace the needle regularly, especially after completing a project or if the needle is damaged or dull. This is crucial for maintaining stitch quality and ensuring the fabric is not snagged or damaged.
  • Check for Thread Snags: Periodically check areas around the bobbin case and tension disks for thread snags or accumulation, which can affect sewing quality.
  • Keep Your Machine Dry and Cool: Store your sewing machine in a dry, cool place out of direct sunlight to prevent damage and wear from environmental factors.

Pros and Cons of the Janome 4120QDC Sewing Machine

The Janome 4120QDC is a feature-packed computerized sewing machine designed for both novice and experienced sewists. To help you decide whether this model is the right fit for your sewing needs, here is a comprehensive list of its pros and cons:


  • Extensive Stitch Library: Offers 120 built-in stitches, including decorative, utility, and quilting stitches, plus three alphanumeric fonts, providing ample creative flexibility for a variety of projects.
  • 7 One-Step Buttonholes: Makes buttonhole creation quick and effortless, perfectly sized to each button.
  • Easy-to-Use Interface: Features an LCD screen with touchpad navigation, simplifying stitch selection and adjustments.
  • Automatic Needle Threader and Thread Cutter: Enhances convenience, saving time and reducing manual effort.
  • Twin Needle Functionality: Allows for parallel line stitching, ideal for hemming and adding decorative touches.
  • Memorized Needle Up/Down: Essential for quilting and appliqué, improving fabric handling during complex sewing tasks.
  • Extra High Presser Foot Lift and Drop Feed: Facilitates the handling of multiple fabric layers and enables free-motion quilting.
  • Extension Table Included: Provides an expanded working area, crucial for larger quilting and sewing projects.
  • Lightweight and Sturdy: Weighs 22.4 pounds and is built to be durable yet easy to transport, suitable for classes or group sewing sessions.


  • Moderately Priced: Higher cost compared to basic models, which might be a consideration for those on a tight budget or beginners not ready to invest heavily.
  • Learning Curve: With advanced features, there may be a learning curve for beginners or those upgrading from more basic machines.
  • Focused on Sewing and Quilting: This does not include embroidery functions, which might be a limitation for those looking for an all-in-one machine that also embroiders.
  • Standard Lighting: Some users might find the machine’s lighting insufficient for working in dimly lit environments, requiring additional light sources.
This Video Is Taken From YouTube


The Janome 4120QDC stands out for its robust feature set, catering to sewists who require a machine that supports a broad range of sewing techniques from basic to advanced. It is particularly appealing to those interested in quilting and high-detail sewing projects due to its specialized features like the twin needle functionality and extensive stitch options. However, the cost and complexity might be prohibitive for absolute beginners or those who need a machine with embroidery capabilities. Overall, the Janome 4120QDC is a solid investment for serious hobbyists and professionals alike, offering long-term value and versatility in sewing projects.

Frequently Asked Questions (FAQs) About the Janome 4120QDC Sewing Machine

What types of projects is the Janome 4120QDC best suited for?

The Janome 4120QDC is highly versatile and ideal for a wide range of sewing projects including quilting, garment making, home decor, and crafting. With 120 built-in stitches and multiple buttonhole options, it’s particularly well-suited for projects that require a high level of precision and customization.

Can the Janome 4120QDC handle thick fabrics like denim or leather?

Yes, the Janome 4120QDC can sew through thicker fabrics like denim and light to medium leather, thanks to its extra high pressure foot lift and strong feeding system. However, it’s important to use the appropriate needles and settings, and potentially a walking foot, to achieve the best results on these heavier materials.

Does the Janome 4120QDC come with a warranty?

Yes, the Janome 4120QDC comes with a 25-year warranty on mechanical parts, a 2-year warranty on electrical parts, and a 1-year warranty on labor. This comprehensive coverage ensures that your sewing machine remains a reliable tool for your crafting needs over a long period.

Is the Janome 4120QDC suitable for beginners?

While the Janome 4120QDC is a computerized machine with advanced features, it is designed to be user-friendly. Beginners who are serious about diving into sewing and want a machine that they can grow into will find it a good fit. However, absolute beginners might find its wide range of features overwhelming if they are not committed to learning.

What maintenance does the Janome 4120QDC require?

To keep your Janome 4120QDC in optimal condition, you should clean the race hook and feed dogs after each use to remove lint and debris. Additionally, it’s recommended to wipe down the machine with a soft dry cloth as needed and have it serviced by a professional periodically, especially if you notice a decrease in performance or before starting a major project.

How do I select stitches on the Janome 4120QDC?

Stitches on the Janome 4120QDC can be selected using the easy navigation buttons and the LCD display panel. The machine allows you to choose from 120 stitches and adjust settings such as stitch length and width, providing ample flexibility for customizing your sewing projects.

Can I quilt with the Janome 4120QDC?

Yes, the Janome 4120QDC is excellent for quilting. It includes several quilting-specific features such as a 7-piece feed dog system, drop feed capability for free-motion quilting, and an extension table for larger projects. The machine’s ability to handle multiple layers of fabric and its variety of stitches make it ideal for quilting enthusiasts.

What accessories come standard with the Janome 4120QDC?

The Janome 4120QDC comes with a range of accessories, including an automatic buttonhole foot, blind hem foot, overedge foot, satin stitch foot, zipper foot, quilting attachment kit, extension table, and more. These accessories help you tackle a variety of sewing tasks right out of the box.

How do I adjust the foot pressure on the Janome 4120QDC?

The foot pressure on the Janome 4120QDC can be adjusted using the foot pressure adjustment dial located on the top of the machine. This feature allows you to change the pressure to suit different thicknesses of fabric, ensuring smooth fabric feeding and optimal stitch quality across diverse materials.

What is the maximum sewing speed of the Janome 4120QDC?

The Janome 4120QDC can sew up to 820 stitches per minute, allowing for quick and efficient sewing on a variety of projects. This speed can be adjusted depending on the complexity of the project and the precision required.

Does the Janome 4120QDC have an automatic thread cutter?

Yes, the Janome 4120QDC includes a built-in automatic thread cutter. This convenient feature allows you to trim threads with the simple push of a button, enhancing your sewing efficiency and providing a cleaner finish.

Can the stitch patterns be customized on the Janome 4120QDC?

Yes, the Janome 4120QDC allows for significant customization of stitch patterns. You can modify the stitch length and width, and it also offers memory capability for creating and saving custom stitch pattern combinations. This feature is particularly useful for those who frequently use specific stitch settings or combinations.

How does the twin needle functionality work on the Janome 4120QDC?

The twin needle functionality of the Janome 4120QDC allows you to use two needles at once, creating two parallel rows of stitching. This is ideal for hemming, topstitching, and adding decorative touches. Please note that you need to purchase the twin needle separately and set the machine correctly to accommodate the twin needle setup.

What types of presser feet are included with the Janome 4120QDC?

The Janome 4120QDC comes with several presser feet including an automatic buttonhole foot, blind hem foot, overedge foot, satin stitch foot, zipper foot, and others. These various feet allow for a wide range of sewing techniques, from basic sewing to more specialized tasks like inserting zippers or creating buttonholes.

How do I perform maintenance on the Janome 4120QDC?

Regular maintenance for the Janome 4120QDC includes cleaning the bobbin area and feed dogs to remove lint and debris, using a soft brush typically included with the machine. It’s also recommended to check and change the needle regularly to ensure optimal sewing performance. Periodically, the machine should be serviced by a professional, especially if used frequently or for complex projects.

Is the LCD screen on the Janome 4120QDC easy to read?

Yes, the Janome 4120QDC features an LCD screen with an enhanced informational display that is easy to read and navigate. The touchpad beside the screen facilitates easy selection and adjustment of stitches, making the sewing process smooth and user-friendly.

Can I use the Janome 4120QDC for free-motion quilting?

Yes, the Janome 4120QDC is suitable for free-motion quilting. It features a drop feed mechanism that allows you to lower the feed dogs for free movement of the fabric under the needle, giving you full control over the stitching direction.

What should I do if my Janome 4120QDC is not sewing properly?

If your Janome 4120QDC is not sewing properly, check to ensure that it is threaded correctly and that the bobbin is properly installed. Also, make sure you are using the right type of needle and thread for your fabric. If problems persist, consult the troubleshooting section of the user manual or contact a professional service technician.

All Used Image Credit : Janome

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