Sorry, but you did not provide any information at all to help us troubleshoot your problem.
What is the make and model number of your printer?
Is the printer connected to the USB port of the Time Capsule?
Is the printer connected to the Time Capsule using wireless only?
Is the printer connected to the Ethernet port on the Time Capsule?
What troubleshooting steps have you already performed?
Have you reviewed Apple's printer troubleshooting guide?
I have an Epson C88 and I got my PCs to print, but I'm having trouble with my iMac with Mountain Lion. Printer keeps saying "offline" even though its plugged in.
Bonjour is running the PCs, how ironic! I've gone into the Time Capsule and it recognizes the printer in its list, so it must be close to working....it just won't.