Enhancing Security to Prevent Others from Printing Out a Document (Secure Print) (Windows) How to set a PIN when printing a document from a computer so that others cannot print the document without entering the PIN on the control panel of the machine is described here. Perform step 1 and step 2 .
Step 1 Loading envelopes Close the flap of each envelope. 2 Flatten them to release any remaining air, and make sure that the edges are pressed tightly.