Chapter 2 Setup Attaching the customer display When connecting or disconnecting a cable, be sure the customer display and system are turned off. 1 Pass the DM-D500 connection cable through support C and insert the customer dis- play into support C. When using the extension support B, insert support B into support C all the way in until it clicks. 2 When using support B (extension) 2 Attach the rubber feet to the printer. 37