Hi guys I need some advice on a replacement for my hp 4100. I was going to replace it a few months back when it ran out of toner but was told to keep and just replace the toner, so i replaced it but if ive been having a few problems since, now i need to open and close the toner door a few time each time I print, it also give me a non hp toner issue, now for the past month or two ive been getting a lot of different errors and print failed issues, from the errors and online I think it may be the network card but i cant be sure, at this point I dont really know what to do even if i get a new card I may still get issues. its a great printer but its getting a little old and giving me a few issues. should I replace it or keep it ? If replace what would be a good choice and What laser printer could i get that will be as decent and with a toner that will last as long ?