Obviously the wrong place to ask, but I couldn't think how to google it offhand

[cimorene]

Is there a word for the type of error (or, well, violation of the rules of standard usage) caused by a rule of standard usage that's different for written than for spoken language (ie inadvertently non-standard because the writer isn't aware that written usage is different)? I tend to think of this as a "doesn't read enough" error, but there could be a real name, couldn't there?