User's Guide
Page 35
... 35 Notes: • T652dn and T654dn models have any other devices attached to the printer, then turn the printer off as well, and unplug any optional drawers. CAUTION-SHOCK HAZARD: If you have an internal duplex unit installed in the printer. • T652n and T654n models do not support an optional ...duplex unit. If you are accessing the system board or installing optional hardware or memory devices sometime after setting up the printer, then turn them off , and unplug the power cord from a drawer without pushing in the safety latches on both sides of the ...
... 35 Notes: • T652dn and T654dn models have any other devices attached to the printer, then turn the printer off as well, and unplug any optional drawers. CAUTION-SHOCK HAZARD: If you have an internal duplex unit installed in the printer. • T652n and T654n models do not support an optional ...duplex unit. If you are accessing the system board or installing optional hardware or memory devices sometime after setting up the printer, then turn them off , and unplug the power cord from a drawer without pushing in the safety latches on both sides of the ...