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Printhead Crashes/Smears on High Density Prints Using Coated Media

   

High density prints can cause cockle mainly on HP Coated Media. This causes two main problems:

 

1. Cockling in the borders - Because the Printer places too much ink on the Coated Media, the borders of the print become raised, causing the Printhead to crash against the media. To solve the problem, try the following:

 
-Try using Heavy Weight Coated Media instead of Coated Media.
-Change the paper margins to "Extended" in the Printer Setup menu/Page Format/Margins or in the Driver. If the customer is printing PostScript images, send them a PPD file containing the extended margins.
-Use the Deflectors.
-Upgrade the Firmware (See System Maintenance).
 
  2. Cockling within the print - If the Printer places too much ink within the print, the media starts to ripple, causing the Printhead to smear against the media. To solve the problem, try the following:
   
    -Never use HP Coated Media for High Density prints. As a substitute use HP Heavy Weight Coated or Heavy Weight Coated (Economy) Media.
     
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