This portable printer lets you print monochrome graphics of your choice onto many surfaces. The Android app is not in the play store, I had to download the apk from the manufacturer's website. The application has several basic functions that allow you to adjust the size, contrast/brightness and position of imported photos. Pretty easy to use, but relies on a 1-axis wheel, so: you should be content with just printing one printer-wide thin strip at a time. Failure to level the printer will damage the printout. A smaller support wheel on each side of the printer prevents the edge from scratching the print surface. If you do not thoroughly clean the printable area beforehand, all 3 wheels can get very dirty. The magnetic cap snaps into place and stays clean between uses. Unlike some printers that can only print in black and white, this printer can display grayscale to match the color of your cartridge, which is much more useful. The resolution is decent, but not outstanding. Basically little more than a thumbnail of a social media profile picture and about as detailed. Don't expect more than 5-8 lines of readable text. Converted cartoons look decent. You can rotate left to right or right to left, but right to left = reversed image. When printing is complete, a beep will sound and the printer will reprint the same image. Suitable for bulk printing of small images. The skin-friendly ink didn't cause any noticeable damage to my skin. Yellow is not suitable. Legibility is satisfactory on smooth white surfaces, but details are lost on textured and/or darker surfaces. Replacement cartridges are currently sold for $60 ($80-$20 coupon). When buying a printer, you should consider buying the dark blue one instead of the yellow one. Despite being a wearable device, it doesn't have a wrist hole. belt, so you have to be very careful not to drop it. Overall, this is a great device for printing small graphics strips. Note, however, that there are significant limitations.
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