Earlier model comparisons
Brother PT-100 vs PT-85: compare the earlier M-tape handhelds
Brother’s PT-100 and PT-85 are both discontinued handheld labelers with model-specific U.S. brochure evidence for the older M-cassette system. Their current product-page technical panels conflict with those brochures, so start with the actual cassette in an owned unit and its exact instructions—not a width match or a generic product-page field.
What the PT-100 brochure documents
The original PT-100 brochure identifies the model as a Home & Hobby electronic labeling system. It shows an alphabetical alphanumeric keyboard, two character sizes (10 and 16 point), four styles (normal, outline, shadow and bold), and Brother M cassettes at 9 and 12 mm. Six AA alkaline batteries are required and not included. Brother’s page for the exact PT100 links the brochure and M-series supplies, but its live specification panel instead says TZe, QWERTY and two lines. The checked U.S. support page did not expose a PT-100 user-guide link; treat line count, cutter actuation, adapter support and any fine print-height limit as unknown rather than repeating the conflicting fields.
What changes with the PT-85?
The PT-85 brochure also names an M-tape starter cassette at 9/12 mm, but gives a different control set: an LCD, five text sizes, nine styles, frames, underlining and a two-line label option. It lists six AA alkaline cells too. Its exact Brother U.S. product-page specifications also conflict with its brochure. The PT-100’s documented brochure is simpler: four styles and two sizes, with the alphabetical key layout visible in the image. These are brochure comparisons, not hands-on measurements or guarantees about a used machine.
Choose by the real unit and media
If you need an M cassette and an alphabetical keypad, the PT-100’s exact brochure provides a narrow earlier-model plan. If a small text display, more on-device styling options or a two-line label are essential, the PT-85 brochure is the stronger documented fit, subject to its own M-versus-TZe conflict. Neither product should be treated as a current purchase recommendation: both are discontinued. Before buying or reloading an older machine, verify the cassette marking and the instructions for that exact unit. Do not infer tape family from width, color, resemblance to another P-touch, or a product page whose data contradicts the attached model brochure.
Neither brochure establishes current cassette stock, an app or computer workflow, or the condition of any secondhand unit. Inspect battery contacts, cassette fit and the printed model label in person where possible. If a specific width, cutter behavior, power adapter, minimum print height or supply source is essential, choose a model whose exact current manual and support files establish that requirement instead of stretching these historical sheets beyond what they say.