7 ? BUSY
Shield GND GND
* According to the schematics, X5.B is only 5pin. But according to componentmap and all existing photos, both connectors are 7pin. The two extra pins arepossibly unused.* COMMON is /Joystick1 select, there is no purpose specifiedfor it being on the printer port. It could be ''possibly'' used as /AutoLF, /Select, or /Init (though the latter one would reset the printer on every keyboard scanning).
[[Category:Hardware]][[Category:CPC Internal Components]]