D680 imageclass replace cartridge message won't go off

SOURCE: Blank pages printing on ImageClass D680

Greeting IceCreamMan, It sounds like you?ve eliminated the toner cartridge as the culprit. I suspect that when you did the disassembly and connector was missed or an electrical connection fault developed. Look for the electrical contacts that connect to the toner cartridge, they may not be making contact. Make sure the spring contacts on the printer are connecting to the cartridge and that they are clean. If that?s not it then check: -all connectors to make sure they are plugged in and oriented correctly -for missing or incorrectly aligned top or side panels (sometimes they are linked to switches) -all wires (for damage) and secure connections Let us know how it goes and don?t forget to rate the posting.

SOURCE: Problems with Canon imageCLASS D680 Laser Printer?

you have to move whole scanner it to the left Lift the platen unit lever (1) and slide the platen unit (2) until the mark appears.
http://www.usa.canon.com/consumer/controller?act=ModelInfoAct&tabact=SupportDetailTabAct&fcategoryid=239&modelid=8152

then faq >>> select the install tuner

SOURCE: I can't find the installation

I cannot find the CD to install my Canon K10224 printer can you help

SOURCE: on/off button

hi try to download these manuals for ur printer go to this link and download them
http://www.usa.canon.com/consumer/controller?act=ModelInfoAct&fcategoryid=239&modelid=8152#DownloadDetailAct

SOURCE: I too need a driver for the d680 for mac book pro

http://www.usa.canon.com/consumer/controller?act=ModelInfoAct&tabact=DownloadDetailTabAct&fcategoryid=335&modelid=8152
No Mac drivers availible for imageclass D680, according to this Canon site. Only lists Windows ME, 98, NT, 2000, XP, or Vista.