|  
 Problem description  | 
 
 
 Cause  | 
 
 
 Action  | 
 
|
|---|---|---|---|
|  
 Sharp lines or bands.  | 
 
 
 Matching the roller positions.  | 
 
 
 Some media are very sensitive to mechanical deformation.  | 
 
 
 Try different medium  | 
 
|  
 More gradual variation, some periodicity  | 
 
 
 Selected print mode is to fast.  | 
 
 
 Select a slower print mode see Select a print mode.  | 
 
|
|  
 Mechanical problem.  | 
 
 
 Check the carriage guidance, bearings or lubricators.  | 
 
||
|  
 Media step problem.  | 
 
 
 Check media step control, see Change the media settings.  | 
 
||
 
Periodic vertical banding