Never tried it myself, but in the printer driver settings, the individual label printout can be freely adjusted in terms of width, height and also the feed between the labels. In this respect, yes - cut labels from the roll should also be printable.
However, the various values for the paper size (i.e. above all the width of the roll) are predefined in the driver; there does not appear to be any option for customised formats.
Yes, the Brother QL-1110NWBc is suitable for printing direct-to-adhesive shipping labels. The printer supports a maximum print width of 103 mm, which is sufficient for many standard shipping labels. It is also compatible with various shipping label software packages, making it easier to print labels for shipping.
We also use the label printer to print shipping labels. The A6 format works perfectly. We have not yet managed to print directly from the Post-App in A7 format. A6 works perfectly. We use the DK-22243 print roll for this.
I use it for my Bricklink shop it works well with the Post website via app I don't do it yet
I would use this printer for parcels 103x164 and for letters I would recommend the 810W with 100x62
I use the DK-22246 labels (roll) to print the A6 labels from the post office. It works fine. Sometimes I print in landscape direction, which saves paper, but makes the font quite small.
We use the printer for exactly that. Shopify and Swiss Post Label Printer. There are at least 2 types of labels that work. The labels are also cut, but we use pre-cut labels anyway. So it would also work without cutting.