Janome MC300E Manual

The Janome MC300E is a computerized embroidery machine featuring a 4"x4" embroidery area, 120 built-in embroidery designs, 5 lettering fonts, USB connectivity, automatic needle threader, built-in thread cutter, LCD touch screen display, speed control slider, and various editing functions. Below are key sections for safety, features, setup, operation, maintenance, and troubleshooting.

Features at a Glance

Key components: LCD touch screen, embroidery unit, USB port, automatic needle threader, built-in thread cutter, bobbin winding system, speed control slider.

Feature	Description
Embroidery Area	4" x 4" (100mm x 100mm) maximum embroidery size
Built-in Designs	120 embroidery designs including motifs and borders
Lettering Fonts	5 built-in fonts for monogramming
USB Port	For importing additional embroidery designs
LCD Touch Screen	3.7" color LCD for design selection and editing
Automatic Needle Threader	Easy threading with push-button operation
Built-in Thread Cutter	One-touch thread cutting
Speed Control Slider	Adjustable sewing speed from 100-650 spm
Memory Function	Stores frequently used designs and settings
Edit Functions	Rotate, mirror, combine, and resize designs

Installation & Setup

Unpack and inspect all components. Place on stable, flat surface.

1. Attach embroidery unit: Align with machine markings and slide into place until it clicks.
2. Install bobbin: Follow threading diagram for proper bobbin installation.
3. Thread upper thread: Use automatic needle threader for easy threading.
4. Connect power: Plug into appropriate power outlet (120V AC).
5. Install needle: Ensure flat side faces back with needle clamp screw tightened.

WARNING! Machine is heavy; lift with care. Ensure stable surface to prevent tipping.

First-Time Operation

Power on machine; follow initial setup procedure.

1. Select language: Choose preferred language from settings menu.
2. Thread machine: Follow on-screen threading guide.
3. Load embroidery design: Select from built-in designs or connect USB.
4. Hoop fabric: Use appropriate hoop size for selected design.
5. Test stitch: Run test embroidery on scrap fabric.
6. Adjust settings: Modify stitch density, speed, and tension as needed.

CAUTION! Keep fingers away from moving needle during operation.

Specifications

• Embroidery Area: 4" x 4" (100mm x 100mm)
• Built-in Designs: 120 embroidery designs
• Lettering Fonts: 5 styles
• Stitch Speed: 100-650 stitches per minute
• Needle: HAx1 SP System (75/11, 90/14)
• Thread: Embroidery thread 40wt recommended
• Display: 3.7" color LCD touch screen
• Connectivity: USB port for design import
• Power Requirements: 120V AC, 60Hz
• Dimensions: 17.7" W x 8.3" H x 14.6" D
• Weight: 18.7 lbs (8.5 kg)

Controls and Functions

Access functions via LCD touch screen and physical controls.

Front Panel: Power button, speed control slider, thread cutter button, needle up/down button.

Touch Screen: Design selection, editing functions, settings, help menu, file management.

Editing Functions: Rotate designs 90°, mirror image (horizontal/vertical), combine multiple designs, resize (50%-120%), lettering editing, stitch editing, color sequence editing.

Settings Menu: Language selection, sound volume, brightness, thread tension adjustment, calibration settings.

Embroidery Operation

Step-by-step embroidery process.

1. Select design: Choose from built-in library or USB imported designs.
2. Hoop fabric: Use appropriate stabilizer and secure in embroidery hoop.
3. Attach hoop: Place hoop on embroidery unit and lock in position.
4. Thread machine: Use recommended embroidery thread and bobbin thread.
5. Position design: Use LCD to position design on fabric.
6. Start embroidery: Press start button; machine will begin automatically.
7. Monitor progress: Watch for thread breaks or issues during embroidery.
8. Change colors: Machine will stop automatically for color changes.
9. Finish: Remove hoop and trim jump threads after completion.

Tip: Always use stabilizer appropriate for your fabric type.

Design Editing

Customize embroidery designs using built-in editing functions.

1. Rotate: Select design and rotate in 90° increments.
2. Mirror: Create mirror image horizontally or vertically.
3. Combine: Merge multiple designs into one embroidery file.
4. Resize: Adjust design size between 50% and 120% of original.
5. Lettering: Add text using built-in fonts; adjust spacing and alignment.
6. Color Edit: Change thread color sequence or eliminate colors.
7. Stitch Edit: View individual stitches and make adjustments.
8. Save: Store edited designs in machine memory or USB device.

WARNING! Excessive resizing may affect stitch quality.

Maintenance & Care

Regular maintenance ensures optimal performance and longevity.

1. Daily cleaning: Remove lint and dust from bobbin area and feed dogs.
2. Monthly oiling: Apply sewing machine oil to designated points.
3. Needle replacement: Change needle after every 8 hours of sewing.
4. Bobbin case cleaning: Remove and clean bobbin case regularly.
5. Software updates: Check for firmware updates via USB.

CAUTION! Unplug machine before performing any maintenance.

Regulatory Information

FCC Part 15: Class B digital device compliant with interference limits. CE certified for European markets. Copyright © 2025 Janome America, Inc. All rights reserved. Patent pending technology. For technical support, visit www.janome.com or contact 1-800-631-0183.

Troubleshooting

Symptom	Possible Cause	Corrective Action
Thread breaking	Incorrect tension/thread quality	Adjust tension; use quality embroidery thread; check needle.
Design misalignment	Hooping issues/fabric movement	Re-hoop fabric securely; use appropriate stabilizer.
Machine not starting	Power/embroidery unit connection	Check power connection; ensure embroidery unit properly attached.
Poor stitch quality	Needle/tension issues	Replace needle; adjust tension; check bobbin threading.
USB not recognized	Format/compatibility issues	Use FAT32 formatted USB; check file format compatibility.
Screen not responsive	Calibration needed	Recalibrate touch screen in settings menu.

Reset: Settings > System > Factory Reset if experiencing persistent issues.

Service: 1-800-631-0183; www.janome.com