10. When the optional duplex unit is detached, place the power cable inside the slot on the side
of the duplex unit, and then push the duplex unit along the rails into the rear of the printer.
11. Push the duplex unit securely into the printer.
• If the printer is equipped with the optional paper feed unit, do not move the printer and the unit together,
because they are not securely attached.
• p.211 "Moving and Transporting the Printer"
Replacing the Transfer Roller
• Do not insert the roller on the back of the socket. Doing so can damage the printer.
• Insert the metallic part of the roller on the socket. If you insert the sponge part of the roller, the roller
might be damaged.
6. Replacing Consumables and Maintenance Kit
140