Here is the latest version of the Dymo Label Light software for Plug and Play (PnP) printers
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Q) How many lines can I print using a Dymo LM420P?
A) You can print 4 lines of text on 19mm; 3 lines on 12mm; 2 lines on 9mm; 1 line on the 6mm tape.
Q) How many lines can I print using a Dymo LM360D?
A) You can print two lines of text on 9, 12mm and 19mm tape, but only 1 line on the 6mm tape.
Q) How many lines can I print using a Dymo Label Manager 210D?
A) You can print two lines of text on 9 and 12mm tape, but only 1 line on the 6mm tape.
The 57 mm wide thermal print head uses 672 individually addressable dots to form individual raster lines of data at 300 dots per inch across the print head and either 300 or 600 dots per inch in the travel direction as directed by the print control data. Because they use specially treated, heat-activated paper, the printers require no ink, toner, or other refills. All 450 series printer models connect to a host computer through a standard full-speed USB 2.0-compatible interface. There are no built-in fonts... [more]
Are you aware of issues with cardscan OCR reader not being detected by computer post installation of El Capitan O/S? I have an 800c an for last 2 weeks is not being detected by computer.
Latest Mac OS X driver and software for Dymo LabelWriter Printers - Download here
Dymo Labelwriter Label Software Freezes at startup in Windows 8 - This is a known problem, here is the 2 minute fix.
Q) How many lines can I print using a Dymo LM160?
A) You can print two lines of text on 9 and 12mm tape, but only 1 line on the 6mm tape.
If you get any kind of error that says "Exception has been thrown by the target of an invocation" then the issue is likely a problem with the .NET framework installed on your PC.
(New - Wireless Label Printer)