Based on your images, the motor assembly (PCB and motor combined) is used in a Lexmark CX510de Laser Printer.
The motor is from the 48M Series of motors from Nitec and the following numbers are the subseries within the 48M line.
Nitec is a Japan corp, and they do not usually post too much technical information such as a data sheet, mainly because of Intellectual Property theft by other countries around them, that steal tech from datasheets or schematics, and then clone it, using sub standard components.
However the driver board is Lexmark and since it is used in their printer, you might be able to dig up something by way of a Lexmark search avenue instead of the Nitec route. Reason is, the motor is Nitec, but based on the silkscreen values on the controller card, that card is a PCB, designed by Lexmark. And since it is the labeling of the connections that youre looking for, and not the Nitec motor, a Lexmark avenue may produce some better results.
Since Lexmark is a USA based corp, out of Lexington Kentucky you may have better luck getting the technical data for the silkscreen definitions then with a corp from Japan. But again, lots of corps are protective of their Intellectual Property such as PCBs since it is very easy to replicate even in the most basic of design shops.
But dont get discouraged about it. Back-tracing information such as this can feel like your falling down a rabbit hole at times. Then one day, poof… you locate some post or PDF which has the information youre looking for. Since the PCB is from Lexmark, more then likely there is something available out on the web for Lex-Techs to repair the printers. A suggestion made here was to try to locate the printer’s hardware repair manual since it may have text describing to a tech on what each wire connection goes on the printer mother board. There are times you can determine what a wire does just based on where it is connected to at the other end. There may also be a full schematic layout for the printer and you can track each connection that way.
One of the PCB guys here looked at the silkscreens and right off said the connections are paired. Meaning the two Us go together, the two Vs go together and the two Ws go together. Based on his experience, they could be high and low pairs, where HIGH signals instruct the controller to rotate in one direction and LOW signals instruct the controller to rotate in the reverse direction. Being two sets of three, the possibility is that it is a three phase stepper, but without a data sheet it would not even be advisable to experiment or tinker with it since the controller could be damaged from doing so.
What was noted here also was the 24 volt and the 5v connection. Right off the 5v may just be power to the board (TTL) and its boosted up to 24v on the PCB for the motor. Again, no datasheet or schematic to examine to know for sure what each component is doing. So tinkering with should be a nono since if there is something such as a 24v feedback or misconnection, that would fry just about any type of tinkering setup.
Try the printer information route if youre into rabbit holes.
If all else fails a phone call to their tech support people could also get you the info.
Hope this helps.
Acigan International
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