Printing bills shouldn’t be confusing.
With Simple Bluetooth Printer, you can easily print on 58mm, 80mm, and even custom widths like A4-size layouts—all from your mobile.

This guide explains which paper size to use, where it’s commonly used, and how to configure it inside the app.

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Step 1: Configure Printer Width in Settings

1. Open Simple Bluetooth Printer
2. Go to Settings
3. Select Printer Width
4. Choose:
   • 58mm
   • 80mm
   • Custom Width (for A4 or large formats)

That’s it.
Once set, all content automatically aligns to the selected width.

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Common POS & Thermal Paper Sizes Explained

2-Inch (58mm) Thermal Paper

• Width: ~58mm
• Common Sizes: 57×35mm, 57×40mm
• Best For:
  • Mobile POS devices
  • Handheld billing machines
  • Small shops & kiosks
• Why choose this?
  • Compact
  • Low paper usage
  • Easy to carry

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3-Inch (80mm) Thermal Paper

• Width: ~80mm
• Common Sizes: 80×60mm, 80×80mm
• Best For:
  • Retail stores
  • Supermarkets
  • Restaurants & hotels
• Why choose this?
  • More space for item details
  • Clear tax & total display
  • Industry standard for billing

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4-Inch (112mm+) / A4-Style Layouts

• Width: 112mm and above
• Examples: 4×6 inches, A4-style formatted prints
• Best For:
  • Shipping labels
  • Logistics & warehouse documents
  • Large invoices
• How to use in the app?
  • Select Custom Width
  • Enter the required width manually
  • Content auto-scales and aligns

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Where Each Paper Size Is Commonly Used

🏪 Retail / POS Billing

• 80mm: Standard counter billing
• 58mm: Handheld or mobile billing

📦 Label Printing

• 2-Inch: Inventory & product labels
• 4-Inch: Courier & shipping labels

🎟 ATM / Ticketing Systems

• 80mm
• Roll length can go up to 200 meters

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Smart Printing Features You Get

✔ Automatic Text Alignment

• Text adjusts automatically based on printer width
• No manual spacing needed

✔ Strict Mode Support

• Prevents layout breaking
• Ensures clean, predictable output

✔ Image Printing

• Print logos, QR codes, barcodes, and images
• Scales perfectly to paper width

✔ Direct Text Printing

• Just type → print
• Alignment handled by the app

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Why This Matters

Different businesses use different printers.
Instead of changing your workflow, Simple Bluetooth Printer adapts to your printer.

Whether you’re printing:

• a small receipt
• a restaurant bill
• or a large A4-style invoice

You configure once—and print confidently every time.

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Final Tip

If your print looks too tight or too wide:

• Just go back to Settings → Printer Width
• Switch between 58mm / 80mm / Custom
• Reprint instantly

No trial-and-error. No wasted paper.