Panasonic FP7750

• Code: U12
• Description: Need staples

• Code: U13
• Description: Add toner. Could also be toner density sensor, toner feed system, or main board.

• Code: U14
• Description: Waste toner bottle full

• Code: U16
• Description: Developer unit not properly installed properly, or connector problem

• Code: U16
• Description: LCT feed unit jam

• Code: U17
• Description: Sorter cover interlock