![]() You also can recognize a GDI printer by the fact that it won't have Linux listed as a supported O/S. If it does not, then it is a GDI printer. Look at the specs of a printer on the manufacturer's web site and see if it has a section about emulation, PostScript or HP PCL. These GDI printers will not work with the SER2USB adapter. they depend on the Windows Graphics Display Interface component to do the rendering of the characters. Many cheap USB printers on the market are what is called GDI (Windows Graphics Display Interface) printers, i.e. Please note that you will need a USB printer that has its own built-in emulation (PostScript, HP's PCL, or a variant thereof). This then would work as follows, for example: ![]() In HP's Reference Manual for PCL5, you can find the definition of the PCL5 printer protocol and the control codes used to do formatting.įor more info on PCL codes, see also this third-party PCL Escape Sequence Reference Page. This sounds complicated, but is in fact relatively easy, as each formatting control code is just a string of specific ASCII characters. If you need more formatting control, you must implement a printer language (or the needed subset thereof) such as HP PCL5 or PostScript in your microcontroller code (for this to work, you will then of course need a printer that supports HP PCL5 or PostScript). You can eject a page by sending an ASCII form-feed character ( 0xC in hexadecimal). You can, for example, control line break by sending an ASCII new line and carriage return character. This gives you limited formatting capability. The easiest way to send something to the printer is simply to transmit ASCII characters. Those normally are part of an operating system such as Linux that runs on 32-bit microcontrollers.įor a microcontroller that does not run its own O/S with printer drivers, you can take the following approaches to print: Print formatting like bold, larger text, etc. Usage with a Microcontroller System The SER2USB adapter works transparently, which means that what you send in on the serial side will be sent out on the USB side. This tool and the instructions are included on the CD-ROM shipped with SER2USB also. If the automatic configuration should fail or you ever need to change the serial settings, you can use a terminal program like HyperTerminal or the XT-ADMIN-XXL Tool. ![]() Just send it an initial print job of at least 1000 characters and it should determine the correct serial settings and configure itself accordingly, printing a status page. The SER2USB comes programmed in an automatic configuration mode. Serial-to-USB Adapter Features Connectors The adapter cable comes with its own 100-240V, 50/60Hz power supply with interchangeable U.S., UK and European power plugs. You also can recognize a GDI printer by the fact that it won't have Linux listed as a supported operating system.) If there isn't one, then it is a GDI printer. (Look at the specs of a printer on the manufacturer's web site and see if there is a section about emulation, PostScript or HP PCL. GDI printers (without their own emulation) are not supported. Note however that only printing is supported scanners, PC-Fax and Software Toolboxes are not supported. Use it to connect modern printers and multifunction printers that have a USB connection to the DB9 serial interface of legacy PCs, measuring devices, laboratory and diagnostic devices, control panels, medical devices as well as all other products that were designed with a serial port interface. This adapter allows you to replace your old printer without having to replace your established system. It requires no drivers or software (in most cases), and converts the RS232 printing protocols to USB. This 1.8m adapter cable has a female 9-pin Sub-D connector to connect to the serial port of computers on one end and a USB-B connector to connect to the USB port of printers on the other end. RS232 to USB Adapter: Connect USB printer to Serial portĪdapter to connect the DB9 serial port of computers or microcontroller systems to the USB port of printers. RS232 to USB Adapter: Connect USB printer to SeriaĮnter keywords to find the product you are looking for in the Quick Find field above
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