My laser printer recently died. :(
Fortunately I had access to a working one and was able to swap out virtually every part and determined that most of the parts in my printer are still good, but the DC controller board (the "motherboard" underneath the printer) is at fault.
As I don't have schematics (and can't find any online), I'm not able to repair the board. If someone has a printer that they aren't using or has other problems (such as the paper roller or fuser output gear) they wouldn't mind taking the controller board out of, I would appreciate it, as it would be a lot cheaper to ship that than to ship a whole printer. I can provide disassembly pictures if needed -- there are a lot of cables, and it can be tricky. I've taken apart these printers down to the bare metal a time or two, so I know how to do it.
Or, if someone lives close to me (College Station, TX) and I could pick up a printer -- even better!
Thanks!
Considering that the N2000 is just a dumb version of some Laser Jets and Laser Writers and probably a load of Canon printers, could you not use the PCB out of one of those, just wondering as that gives you more choice. Does it actually say NeXT on the PCB in question?
No, it's a Canon part, but it was made especially for NeXT. The HP LJ II, LJ III, Apple LaserWriter II, and the NeXT printer all have different DC controller boards, although they serve the same purpose, and take (mostly) the same connectors.
Pictures of different controller boards (
http://www.printerworks.com/Catalogs/SX-Catalog/930SXContrlPCBAssbly-DC.html)
For example, the paper tray switches are on the controller board on the LJ II and LJIII boards, whereas on the NeXT they're on a separate board, connected with a 4-wire cable (the orange wires). Also, the power supply connector is not in the middle of the board, but instead there are non-removable cables that go to that connector, which sits beside the board. Also, the different boards are different sizes.
More importantly, the frequency of crystals and oscillators on this board determine the print resolution (they control how fast the scanner motor spins), and most printers using the SX engine were 300 dpi. Canon produced variants in 240, 300, and 400 dpi, and the NeXT is capable of both 300 dpi and 400 dpi.
So, to sum it up, only a board from another NeXT printer will work.
Have you found the part you need for your laser printer?? I recently aquired two of the same model printers. One is complete except for the paper tray. The other has a broken latch that locks the top down. I do not have a way to check these or power them up but you are welcome to them if you don't mind the drive from College Station to Weatherford.
Let me know thru PM or reply here
Thanks
Wally G.