Load supported paper and confirm the printer works
Use the roll type and orientation specified by the printer manufacturer. Follow the model’s self-test procedure to confirm it can print without your billing software. For a direct thermal model, the paper’s heat-sensitive coating must face the print head.
Use the supported connection and driver
Choose the connection supported by your printer, device and billing workflow. USB and Bluetooth availability alone does not establish compatibility. Install the manufacturer’s driver or use the app’s documented printing workflow, then select the correct printer.
Match paper size, margins and layout width
Choose the installed roll width in the driver and set the bill layout within the usable print area. In browser workflows, inspect scale, margins, orientation and page length; turn off browser headers and footers when they add unwanted text. Reflow narrow layouts instead of depending on extreme scaling.
Print a complete test transaction
Use a test document with long item names, fractional quantities and a representative total. Use sample payment destinations only in clearly labeled tests; replace them before issuing a real document.
- Business details and document number are fully visible.
- Amounts align and the totals reconcile.
- No content is cropped at either edge or at the cut.
- QR and barcode scans return the intended test values.
- A saved digital copy matches the printed transaction.
Illustrative bill calculations
Check the numbers before printing
Both previews show six item amounts: ₹265 + ₹175 + ₹116 + ₹28 + ₹140 + ₹42 = ₹766. They use sample date 6 October 2026. The invoice and receipt have different tax presentation and payment status; compare them as separate design examples.
Receipt: ₹750 total and ₹750 paid
| Item subtotal | ₹766.00 |
|---|---|
| Discount | −₹16.00 |
| GST labeled included | ₹48.62 (not added again) |
| Round off | ₹0.00 |
| Displayed total | ₹750.00 |
| Payment acknowledged | ₹750.00 |
| Balance after full payment | ₹0.00 |
The displayed subtotal and discount reconcile to the total. The included tax amount needs a separate check against the source transaction; this preview does not establish tax compliance. Its quantity summary mixes kilograms and pieces, so use separate units in inventory records.