As shown above Pin9 is wired to GND (instead of Data 7), for upgrading, see [[8bit Printer Ports]].
== CPC Plus and KC Compact Pinout ==
[[Image:plus-printer.jpg|400px|Amstrad CPC Printer port]]
{|{{Prettytable|width: 700px; font-size: 2em;}}
|''Pin No.''||''CPC+''||''KC Compact''||''PC''
|-
| 1 || /Strobe || /Strobe ||/Strobe
|-
| 2 || Data 0 || Data 0 ||Data 0
|-
| 3 || Data 1 || Data 1 ||Data 1
|-
| 4 || Data 2 || Data 2 ||Data 2
|-
| 5 || Data 3 || Data 3 ||Data 3
|-
| 6 || Data 4 || Data 4 ||Data 4
|-
| 7 || Data 5 || Data 5 ||Data 5
|-
| 8 || Data 6 || Data 6 ||Data 6
|-
| 9 || Data 7 || Data 7 ||Data 7
|-
| 10 || NC || NC ||/Ack
|-
| 11 || Busy || Busy ||Busy
|-
| 12 || NC || NC ||PaperEnd
|-
| 13 || NC || NC ||SLCT
|-
| 14 || NC || NC ||/AutoLF
|-
| 15 || NC || NC ||/Error
|-
| 16 || +5V ||NC ||/Init
|-
| 17 || GND ||NC ||/Select
|-
|18-25|| GND || GND ||GND
|-
|}
CPC+ and KC Compact printer ports differ only on Pin 16,17.
[[Category:Hardware]][[Category:CPC Internal Components]]