Logos & graphics
Add a PNG, JPEG or SVG and it becomes selectable as the mark on any piece
(the Mark dropdown on each card). Artwork is stored on this device only.
Solid black-on-white line art prints best — photographs turn to mud at 203 dpi.
Settings
Rotate back panel 180°
Head at far end
Sizes × qty takes a per-size count: 7x8, 6x5 is eight size 7s and five
size 6s. A bare list (7,8,9) or a range (6-9, half sizes included) uses
the row's Qty. Leave it blank for a piece with no size.
A thermal head blooms, so heavy strokes print fat and hairlines wash out. Logo / price weight negative thins the mark, price and piece name; Small text weight positive fattens the metal and website lines. Move in steps of 5–10 and keep Darkness low — cranking darkness to rescue the small text is what closes up the cursive.
A thermal head blooms, so heavy strokes print fat and hairlines wash out. Logo / price weight negative thins the mark, price and piece name; Small text weight positive fattens the metal and website lines. Move in steps of 5–10 and keep Darkness low — cranking darkness to rescue the small text is what closes up the cursive.
Connection log
Everything the Bluetooth stack reports, including the services and characteristics
your printer actually exposes. If Connect is not working, open this, tap
Connect printer, then copy what appears here.
If Connect is not working
1. The printer must be switched ON, with the lid closed and a roll loaded.
2. Close the Phomemo app, and in iOS Settings → Bluetooth tap the ⓘ next to the M220 and Forget This Device. Bluetooth Low Energy allows exactly one connection at a time — if the Phomemo app or an iOS pairing holds it, nothing else can reach it.
3. Give Bluefy Bluetooth permission: iOS Settings → Bluefy → Bluetooth on.
4. The chooser lists every nearby device, not just printers. Look for M220; some units advertise as M22O, PT- or a bare MAC address.
5. Still nothing? Open the Connection log above and send me what it says.
Bluetooth on a Mac: Chrome needs permission — System Settings → Privacy & Security → Bluetooth → switch Chrome on, then restart Chrome. Without it the chooser opens and stays empty. Safari cannot do it at all.
USB on a Mac: plug the printer in and press USB. If it reports that the device is in use, macOS's own print queue is holding it — System Settings → Printers & Scanners, remove M220, then try again. You only need that queue for the old Python studio.
2. Close the Phomemo app, and in iOS Settings → Bluetooth tap the ⓘ next to the M220 and Forget This Device. Bluetooth Low Energy allows exactly one connection at a time — if the Phomemo app or an iOS pairing holds it, nothing else can reach it.
3. Give Bluefy Bluetooth permission: iOS Settings → Bluefy → Bluetooth on.
4. The chooser lists every nearby device, not just printers. Look for M220; some units advertise as M22O, PT- or a bare MAC address.
5. Still nothing? Open the Connection log above and send me what it says.
Bluetooth on a Mac: Chrome needs permission — System Settings → Privacy & Security → Bluetooth → switch Chrome on, then restart Chrome. Without it the chooser opens and stays empty. Safari cannot do it at all.
USB on a Mac: plug the printer in and press USB. If it reports that the device is in use, macOS's own print queue is holding it — System Settings → Printers & Scanners, remove M220, then try again. You only need that queue for the old Python studio.
Printing from an iPad
Safari cannot talk to Bluetooth — Apple has never shipped Web Bluetooth and has said
it will not. Open this file in Bluefy (free on the App Store), which ships its
own Bluetooth stack, and Connect printer works normally. On the Mac, plain
Chrome is fine. USB-C from an iPad is not an option at all: iOS gives apps no access
to generic USB printers.
Everything here runs offline once the file is on the device — no server, no Mac.
On a computer you get both: Bluetooth or USB (WebUSB, Chrome and Edge). USB is faster and more reliable — 512-byte transfers against Bluetooth's 128 — so prefer it at the bench and keep Bluetooth for events.
Everything here runs offline once the file is on the device — no server, no Mac.
On a computer you get both: Bluetooth or USB (WebUSB, Chrome and Edge). USB is faster and more reliable — 512-byte transfers against Bluetooth's 128 — so prefer it at the bench and keep Bluetooth for events.