BT PaperJet 35 User Manual page 8

Getting started 7
Plug the mains power cable into the machine, and the other end into the
mains power and switch on.
Your BT PaperJet 35 performs a start up check. The screen displays
AUTOMATIC on the top line and alternates between SET DATE/TIME and
CHECK PRINT HEAD on the bottom line.
2. Insert paper support tray into the slots.