1  | Ribbon cartridge  | 
2  | Head-up sensor (inside)  | 
3  | Movable sensor (black mark and lower web/gap)  | 
4  | Platen (drive) roller  | 
5  | Media guide stop adjustment  | 
6  | Media guides  | 
7  | Roll holders  | 
8  | Upper web (gap) array sensor (other side)  | 
9  | Printhead  | 
        
  1  | Ribbon take-up spindles  | 
2  | Supply spindles (full ribbon rolls)  | 
        
  1  | Media dancer (ZD620 only)  |