How to Upgrade, Repair, Disassemble a Printer or Plotter Port: Parallel, USB, IrDA, BlueTooth, Serial, LAN, WLAN, SCSI

Do you need to repair or mod the interface (port) of a printer or plotter? Here is a (not yet complete) collection of guides and schematics for parallel, USB, IrDA, BlueTooth, serial, LAN, WLAN, SCSI interfaces and adapters. If you have written a hacking guide yourself (or if you know of a tutorial not linked here), please submit a new entry.

misc. printers

Parallel port interfacing made easy: Simple circuits and programs to show how to use PC parallel port output capabilities.