Good office supplies shops

I'm looking for a good (as in large range available in store) office supplies store in Berlin. I need to buy, amongst other things, good quality A4 paper for my printer. It would be great if someone knew of a store around Schoneberg but anywhere that is good will do.

Thanks

I was about to post the same sort of post except I am looking for office furniture, I have been thinking about the Storkowerstr stop on the S Bahn but I was wanting to hear about other places.
thanks.

Info yes, reviews no as i havent been there yet.

Die Papierfabrik Werksverkauf
Kaiser-Wilhelm-Str. 9
12247 Berlin

www.diepapierfabrik.de

As for office furniture, i ended up taking the easy option and going to Ikea.