The Janome 4100QDC is a computerized sewing machine with 40 built-in stitches, one-step auto-size buttonhole, automatic needle threader, drop feed for free-motion sewing, built-in quilting stitches, and easy reverse stitching. Features include top-loading bobbin system, adjustable stitch length and width, speed control slider, and built-in thread cutter. Below are key sections for safety, features, setup, operation, maintenance, and troubleshooting.
Key components: Computerized control panel, automatic needle threader, top-loading bobbin system, built-in stitches, drop feed lever, speed control slider.
| Feature | Description |
|---|---|
| Built-in stitches | 40 stitches including utility, decorative, and quilting stitches |
| Auto-size buttonhole | One-step automatic buttonhole in proper size for button |
| Automatic needle threader | Easy threading with push-pull mechanism |
| Top-loading bobbin | Easy access with clear cover |
| Drop feed | Free-motion sewing for quilting and darning |
| Speed control slider | Adjustable sewing speed |
| Reverse stitch button | Easy reinforcement of stitches |
| Built-in thread cutter | Convenient thread cutting on machine |
| Stitch length/width adjustment | Customizable stitch settings |
| Quilting stitches | Special stitches for quilting projects |
Unpack and inspect contents. Place on stable surface at comfortable height.
WARNING! Keep fingers away from needle area during operation. Always turn off power when threading or changing accessories.
Power on machine; follow basic setup procedures.
CAUTION! Always start with needle in highest position. Keep work area well-lit and organized.
Access functions via control panel and dials. Front Panel: Stitch selection dial, stitch length dial, stitch width dial, reverse button.
Control Panel: Power switch, speed control slider, stitch pattern indicators, bobbin winding guide.
Stitch Selection: Turn dial to choose from 40 built-in stitches. Stitch Length: Adjust from 0-5mm. Stitch Width: Adjust from 0-7mm for zigzag and decorative stitches. Reverse: Hold button for reinforcement stitching. Drop Feed: Lower feed dogs for free-motion work.
40 built-in stitches including:
Tip: Always test stitch on scrap fabric before sewing project.
Step-by-step sewing procedures:
WARNING! Never sew over pins. Keep fingers clear of moving needle.
Regular maintenance ensures optimal performance.
CAUTION! Use only Janome recommended needles and accessories. Do not use compressed air for cleaning.
Standard accessories included:
| Accessory | Use |
|---|---|
| General Purpose Foot | Basic sewing |
| Zigzag Foot | Decorative stitches |
| Buttonhole Foot | Automatic buttonholes |
| Zipper Foot | Zipper installation |
| Blind Hem Foot | Invisible hemming |
| Overedge Foot | Edge finishing |
| Darning Foot | Free-motion work |
| Bobbin (extra) | Additional bobbin |
| Needles | Assorted sizes |
| Screwdriver | Needle plate removal |
UL Listed: Complies with UL safety standards. FCC Part 15: Class B digital device; complies with interference limits. Copyright © Janome America, Inc. For technical support, contact Janome America at 1-800-631-0183 or visit www.janome.com. Made for household use.
| Symptom | Possible Cause | Corrective Action |
|---|---|---|
| Needle breaks | Wrong needle/bent needle | Replace with correct needle; ensure straight insertion |
| Thread bunching | Incorrect threading/tension | Rethread completely; check bobbin threading |
| Skipped stitches | Dull needle/wrong needle | Replace needle; use correct type for fabric |
| Machine won't run | Power/pedal issues | Check power connection; ensure pedal plugged in |
| Uneven stitches | Tension issues | Adjust upper tension; check bobbin tension |
| Noise during operation | Lint buildup | Clean bobbin area and feed dogs |
| Fabric not feeding | Feed dogs lowered | Raise feed dogs for normal sewing |
| Buttonhole issues | Incorrect foot/fabric | Use buttonhole foot; stabilize lightweight fabrics |
Service: 1-800-631-0183; www.janome.com