2.1 Main Components and Functions 33
No. Name Description
1 Ventilation hole Releases heat to prevent the interior of the printer from overheating.
Important
• Locking the ventilation hole causes heat build-up in the printer, which causes 
the printer to malfunction.
2 Rear cover Removed when installing the optional accessories.
3 Earth fault interrupter Cuts off the power circuit automatically in the event of current leakage.
4 Power switch Switches the printer on/off. Pressing this to the <|> position switches the power 
on, and pressing it to the <O> position switches the power off.
5 USB connector Connects a USB cable to the printer.
6 Network connector
(DocuPrint C1110 only)
Connects a network cable to the printer. A network cable is used when 
connecting the printer to a network.
Rear View
Note
The illustration on the left is based on the 
DocuPrint C1110. The DocuPrint C1110 B 
is not equipped with a network connector.