*UD\OLQHVRQEODQNODEHOVZLWKQRFRQVLVWHQWSDWWHUQ
Problem | Solution  | 
The printhead is dirty.  | Clean the printhead according to the instructions on  | 
  | page 56.  | 
  | 
  | 
/LJKWFRQVLVWHQWYHUWLFDOOLQHVUXQQLQJWKURXJKDOORIWKHODEHOV
Problem | Solution  | 
The printhead or platen roller is dirty.  | Clean the printhead, platen roller, or both according to the  | 
  | instructions on page 56.  | 
  | 
  | 
,QWHUPLWWHQWFUHDVHVRQWKHOHIWDQGULJKWHGJHVRIWKHODEHO
Problem | Solution  | 
There is too much pressure on the printhead.  | Reduce the printhead pressure. Refer to “Printhead  | 
  | Pressure Adjustment” on page 65.  | 
  | 
  | 
:ULQNOHGULEERQ
Problem | Solution  | 
The ribbon is not loaded correctly.  | Load the ribbon correctly. See “Ribbon Loading” on  | 
  | page 34.  | 
  | 
  | 
The darkness setting is incorrect.  | Set the darkness to the lowest possible setting for good  | 
  | print quality. See “DARKNESS” on page 40.  | 
  | 
  | 
  | Set the pressure to the minimum required for good print  | 
Incorrect printhead pressure or balance.  | quality. See “Printhead Pressure Adjustment” on page 65.  | 
  | 
  | 
The media is not feeding correctly. It is  | Make sure that the media guide and media supply guide  | 
“walking” from side to side.  | touch the edge of the media.  | 
  | 
  | 
72  | Zebra Z4M/Z6M Printers User’s Guide |