Hello wiki11,
It sounds like you were using the Canon Direct Print & Scan for Mobile App in your first post (this app is not supported with imageCLASS printers including your imageCLASS LBP6230dw). However, the Canon Print Business - iOS App is compatible with your LBP6230dw and will allow you to print from your iOS devices. For more information about using this app, please review the FAQ section on our Mobile Solutions web site. In the mean time, could you tell use more about the issues you are having printing?
If you need immediate assistance and you're in the USA, please click http://Canon.us/ContactCF for our US-based support. If you're outside of the US, please click http://Canon.us/4xf7 for support options.
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