The data from your computer is streamed to the printer via the controller circuitry.

The electronic circuit in the printer resizes the data to the proper proportions to fit on the page correctly.

The Photo-Conducting Drum rotates next to the Primary Charging Roller (PCR) and applies a negative charge to the surface of the Organic Photo-Conductor Drum (OPC) to prepare it for the imaging process.

The circuit then activates a laser which deflects off of a rotating mirror, in turn drawing the precise image on the OPC Drum by reversing the charge on its surface.

The Developer Roller collects toner that has been stirred up in the toner.

The Doctor Blade levels the toner on the Developer Roller to the precise height and as it rotates the toner attaches itself (due to the opposite charge) to the image that was copied onto the OPC Drum.

A sheet of paper feeds through the printer and towards the OPC drum where the toner is transferred to rest lightly on the paper's surface.

The paper with the toner then passes through the Fusing Assembly. The heat from the two rollers causes the toner to melt and fuse into the fibers of the paper.

A Wiper Blade then slides across the OPC Drum and removes any remaining toner to the Waste Hopper.

Your printout should now appear in the output tray of your printer, still warm from the fuser... hence the term "Hot off the Press!"