Brother QL and 4x6 labels on a Mac: which models can, and which can't

Start here, because it is the answer most people need and almost nobody checks before buying: most Brother QL printers cannot print a 4x6 shipping label at all. Not badly, not at the wrong size — they physically cannot take the media.

The width limit

The common QL models — QL-800, QL-810W, QL-820NWB — accept media up to 62 mm wide, with a printable width just under 61 mm. That is about 2.4 inches.

A 4x6 shipping label is 102 mm wide. It does not fit, and nothing in software changes that. These are excellent address and barcode printers; they are not shipping label printers.

The models that do take 4x6 are the wide-format line: QL-1050, QL-1050N, QL-1060N, QL-1100 and QL-1110NWB. If you are buying specifically to print carrier labels, that is the list to buy from.

Which roll

Brother QLs use DK rolls, which drop into a spool rather than threading like a receipt printer. For shipping:

• DK-1241 — 4 × 6 in die-cut, 200 labels per roll. The standard choice.
• DK-1247 — 4.07 × 6.4 in, 180 per roll. Slightly larger, useful when a carrier label runs long.

Both are die-cut, and that word matters more than it looks. The label boundaries are fixed by the roll, not decided by your print. A continuous roll can be cut wherever the print ends; a die-cut roll cannot. So a document that is not the size of the die-cut label will not simply come out shorter — it will be scaled or clipped to fit the label that already exists.

Setting it up on macOS

1. Install Brother's macOS driver for your model.
2. If macOS blocks the installer, open System Settings → Privacy & Security and click Open Anyway next to the blocked item.
3. Add the printer in Printers & Scanners.
4. Set the default paper size to the DK roll you loaded — the driver exposes the DK sizes by name, so pick DK-1241 rather than a custom measurement.

Picking the roll by name is worth doing rather than entering 100 × 150 mm by hand. The driver knows the real die-cut dimensions and the unprintable margins around them, and a hand-typed size that is close but not exact is a common cause of labels drifting down the roll over a long batch.

P-touch Editor is not the tool for carrier labels

Brother ships P-touch Editor, and it is a capable label designer. If you are making your own labels — product tags, address labels, barcodes — it is the right place to work.

It is the wrong tool for a label a carrier already generated. That PDF does not need designing; it needs to come out at the right size without being redrawn. Once the printer is installed on macOS, anything can print to it, and you are better off printing the file directly.

When the label still comes out wrong

With the right model, the right roll and the roll selected by name, a remaining size problem is in the file rather than the printer. Check it with Cmd+I in Preview:

• 100 × 150 mm — the file matches the label. Set scale to 100% and print.
• 210 × 297 mm or 8.5 × 11 in — the label is a small rectangle on a full page. On a die-cut roll this is especially unforgiving: the whole A4 page gets squeezed onto one 4x6 label. The page has to be cut down first.

Because a die-cut roll gives no latitude, the file has to be the right shape before it reaches the printer. Our free browser tool crops a full page down to the label at full size, with no rescaling for the die-cut boundary to fight.

If you already own a narrow QL

A QL-800 or QL-810W is not wasted. It prints address labels, barcodes and product tags very well, and plenty of sellers run one alongside a cheap 4x6 thermal printer for postage.

A dedicated 4x6 unit — Rollo, MUNBYN or an Xprinter — costs considerably less than replacing the Brother with a QL-1110NWB, and the DK rolls the wide Brother needs are dearer per label than the plain 4x6 stock the others take.