Print v paper problems.
I prefer to work from a printed form. The big "but" , as mentioned earlier, is amendments to paper docs.
My approach is, for example, a maintenance manual - print out only the few pages applicable the the job being done at the time.
For the ops manual I treat it more as a "read & remember" document, or to refresh the memory. Committing to memory only those sections that are applicable to your own type of operation.