Of course, as a teacher, I do a lot of photocopying. Then again, I used to when I worked for a small marketing agency and for the world's largest oil company. On the other hand, it's usually 30 pages maximum and I don't try to do anything complicated. My personal bugbear is staples - every time I try to get a photocopier to staple anything it breaks.
So, what do schools (and businesses) do to help ham-fisted teachers and marketers? That's right, find experts to help. I've worked in a number of schools and I have to say that the reprographics technicians are always the most organised, calm and professional people there. When the small marketing agency I worked in grew a bit, my team acquired an excellent administrator - who not only managed to put staples in things, but improved the way they looked as well. In the big oil company, we sent our presentations to experts who made them look far more interesting than they deserved to be.
The same issues occur across schools. I don't really mind collecting money from students, but I don't want to handle double-entry bookkeeping I don't mind switching a computer on and calibrating the whiteboard, but I'm not going to touch the network routers or try to install a new programme across the 250+ computers in my school. That's why schools have professional IT technicians (although I do know of one where the Deputy Head installed a school-wide wi-fi network in his holidays - I do hope it still works...). That's why they have Business Managers to manage money, and increasingly HR experts to manage professional development (as teachers with lots of experience telling children off sometimes need help managing adults!).
Marketing is perhaps the last major business function for schools to adopt, but as the need to understand, change and communicate why your school is distinctive increases, schools are moving in large numbers to take on professional marketing advice.
So, I guess I've a suggestion for the teacher pay review body. Why not forget about 'banning' teachers from individual activities and instead just suggest schools hire experts for any activity that teachers aren't trained to do. Then we could free the teachers to do what they do so well - teach?