Scott, the new CUPS package does not require the new kernel, but there is a total of probably three USB printing bugs in the original Oneiric, one fixed by the kernel and two fixed by my CUPS package. So if you want to avoid rebooting your system, you could start trying with the CUPS package. If this fixes your problem, all is OK. If not you can still try the new kernel (which requires a reboot).
Scott, the new CUPS package does not require the new kernel, but there is a total of probably three USB printing bugs in the original Oneiric, one fixed by the kernel and two fixed by my CUPS package. So if you want to avoid rebooting your system, you could start trying with the CUPS package. If this fixes your problem, all is OK. If not you can still try the new kernel (which requires a reboot).