!PrtInfo is a flexible adaptable tool for printer maintainance.
In case that the right driver is available and the printer is supporting a function in general you can display the toner/ink-level, change toner or ink cartridges or the print head, clean the print heads and fetch the printer status. Additionally the program contains a simple ink cartridge database. You can generate your own drivers by a simple specialized programming language and by making usage of Draw files. In the moment some EPSON and some Canon printers are supported.