OKI C5100n Laser Printer "not black" Questions

...black ink was not setting. Color images looked good, but the black was smeared. I replace the black toner cartridge, and my problem was solved for a couple of days. Now, no black will print at all. ...

...black Question, not problem. Will the Lexmark C720 print with only the black toner cartridge installed? There are some Lexmark color laser printers that are capable of black-only printing w/o the ...

...black it comes out as a shade of grey. Please help. Not able to print a status page. Tried holding down menu 5 sec and no output. I searched the menu and am not able to find how to print status page. ...

Black text will not print I have a Okidate C5100 printer... I can print in color but I am unable to have any black text print. Any solutions? you have to open the cover and look at the 4 black strpies

black- toner is not out, drum is new. I have restarted computer, turned off/on printer, checked cables- not giving any messages. Help? First of all try cleaning the black LED head with an alcohol wipe

printer does not print black ,changed cartridge printer does not print black changed cartridge still no black Run the head clean function.

...not putting any black over a color and even then sometimes the black text has a shadow. It looks like an alignment problem, but I have found nothing in manual or searching online that gives any help ...

Not printing black I'm having the same problem except I've changed both the toner cartridge and drum and still not printing black. You say to clean the leeds ... um .... not to sound dumb but where in

...not printing black, print the Print Quality page and see what color is not printed or not showing. If Print Quality shows black, try printing any document from any application in the computer. Check ...

...black nothing to see It is probably a faulty black drum unit. I would hazard a guess that something like a corona wire or Primary Charge roller is not transfering charge to the optical drum