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Emulating EPP printer
Hello
I have a piece of productionmachinery which prints to an older Oki Microline Dot matrix printer via a standard EPP/ECP cable. What I would like to do, is have a Windows box emulate this printer and have the output show on the screen instead. Should I simply connect the equipment to the parallel port on the PC, run Hyperterminal and see the output or is it likely that this requires some sort of printerdriver emulation ? From what I can understand, the connection is a RS232. Can any harm come to parallel equipment, when connecting it to a PC ? Thanks in advance, any insight will be appreciated ! Johannes |
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Emulating EPP printer
wrote in message
oups.com... Hello I have a piece of productionmachinery which prints to an older Oki Microline Dot matrix printer via a standard EPP/ECP cable. What I would like to do, is have a Windows box emulate this printer and have the output show on the screen instead. Should I simply connect the equipment to the parallel port on the PC, run Hyperterminal and see the output or is it likely that this requires some sort of printerdriver emulation ? From what I can understand, the connection is a RS232. Check things a bit more. There were Oki Microline printers that had an RS-232 interface. If the equipment used RS-232 output you could connect it to a windows PC with a null modem cable connecting the two. In this case a terminal program could do what you want. On the other hand, if the connection really is a parallel cable (ecp/epp) this will not work. It may be possible to redirect the printer output to a serial (RS-232) port if the production equipment uses DOS as an underlying operating system. It might be possible in this case to use the DOS "Mode" command to redirect the printer. It has been a long time, but the commands would look something like: Mode Com1:96,n,8,1 Mode lpt1=Com1 Can any harm come to parallel equipment, when connecting it to a PC ? Yes, if you connect a parallel port to an RS-232 interface it is possible to damage the parallel port. RS-232 is +/- 15V max, the TTL inputs on the parallel port can handle about -0.8 to +5.5V max. Do not connect a rapallel port to an RS-232 port. Regards, Bob Headrick, MS MVP Printing/Imaging |
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Emulating EPP printer
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Emulating EPP printer
On 25 Apr., 01:37, Warren Block wrote:
wrote: I have a piece of productionmachinery which prints to an older Oki Microline Dot matrix printer via a standard EPP/ECP cable. Not really such a thing as an EPP/ECP cable; those are modes of the parallel port. What I would like to do, is have a Windows box emulate this printer and have the output show on the screen instead. Should I simply connect the equipment to the parallel port on the PC, run Hyperterminal and see the output or is it likely that this requires some sort of printerdriver emulation ? From what I can understand, the connection is a RS232. Before doing anything, you need to find out exactly what you have. Is it parallel or serial? If the cable has a DB9 connector on either end, it's probably serial. Old stuff could have DB25 connectors, but so could parallel. If it is parallel, the easiest option is to convert it to serial. Hardware adapters are available to do that. Finding an appropriate serial cable can be difficult, and I usually end up building them. Once the data is in a form the PC can receive, you can choose an OS and application to display the output. Can any harm come to parallel equipment, when connecting it to a PC ? Possibly, particularly if you're plugging a non-parallel cable into the parallel port. -- Warren Block * Rapid City, South Dakota * USA Thanks a lot guys! I will investigate further and share the results with you. |
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