Overview

IMPORTANT: This must be done for each of the stocks loaded, as needed. Note: If the Paper Path is not clean, the Full Width Array, EZ Press Check, PredictPrint or Maintenance Routines may not complete successfully For additional information refer to How To Clean the Entire Paper Path. Perform these actions first to improve print quality: If performing the suggested actions below does not resolve the problems, contact the Customer Support Center. The following solutions must be performed from the Stock Library on the Control Center. Tip: All solutions provided here are accessed from the Advanced Stock Setup feature Refer to the Stock Library for "Advanced Stock Setup" feature.   Suggested actions for Uneven Density or Mottle: Note: An automatic adjustment fixes most image quality issues Always perform the Auto procedure before performing the Manual adjustment. Tip: Use the Manual adjustment option only when the Auto adjustment does not provide the appropriate output. Note: This is a press feature and is not a Stock Library feature. Confirm that the media used meets the following conditions: Compatible with the press Within supported specifications In good condition Assigned to the correct tray Compatible with the press Within supported specifications In good condition Assigned to the correct tray Some image quality issues occur because the Stock Library does not match the media weight and type being used Verify that the Stock Library settings are correct for the media weight and type Refer to the Match the Tray and Media Information if needed. Perform Secondary Transfer Voltage Adjustment . Use this feature to adjust the voltage ratio on the secondary bias transfer roll (2nd BTR) For heavy-weight paper, such as 220 g/m2 or greater, the 2nd BTR is where the image is transferred from the belt to the paper However, there are times when it is also used with lightweight paper Accessed this feature the from Stock Library > Stock Properties > Advanced Stock Setup > Secondary Transfer Voltage Adjustment . You can perform the Secondary Transfer Voltage Adjustment procedure by selecting either Auto or Manual . Note: An automatic adjustment fixes most image quality issues Always perform the Auto procedure before performing the Manual adjustment. Auto : The press automatically performs the adjustment The adjustment eliminates the need to interpret printed targets, and manually enter adjustment values. Manual : The user manually performs the adjustment, including printing test patterns, interpreting the printed targets, and manually entering the adjustment values. Tip: Use the Manual adjustment option only when the Auto adjustment does not provide the appropriate output. For detailed information and instructions on using the Auto and Manual adjustment options, refer to Stock Library for "Advanced Stock Setup," "Secondary Transfer Voltage Adjustment Overview." . Use this feature to adjust the voltage ratio on the secondary bias transfer roll (2nd BTR) For heavy-weight paper, such as 220 g/m2 or greater, the 2nd BTR is where the image is transferred from the belt to the paper However, there are times when it is also used with lightweight paper Accessed this feature the from Stock Library > Stock Properties > Advanced Stock Setup > Secondary Transfer Voltage Adjustment . You can perform the Secondary Transfer Voltage Adjustment procedure by selecting either Auto or Manual . Note: An automatic adjustment fixes most image quality issues Always perform the Auto procedure before performing the Manual adjustment. Auto : The press automatically performs the adjustment The adjustment eliminates the need to interpret printed targets, and manually enter adjustment values. Manual : The user manually performs the adjustment, including printing test patterns, interpreting the printed targets, and manually entering the adjustment values. Tip: Use the Manual adjustment option only when the Auto adjustment does not provide the appropriate output. For detailed information and instructions on using the Auto and Manual adjustment options, refer to Stock Library for "Advanced Stock Setup," "Secondary Transfer Voltage Adjustment Overview." . Auto : The press automatically performs the adjustment The adjustment eliminates the need to interpret printed targets, and manually enter adjustment values. Manual : The user manually performs the adjustment, including printing test patterns, interpreting the printed targets, and manually entering the adjustment values. Tip: Use the Manual adjustment option only when the Auto adjustment does not provide the appropriate output. For detailed information and instructions on using the Auto and Manual adjustment options, refer to Stock Library for "Advanced Stock Setup," "Secondary Transfer Voltage Adjustment Overview." . If you observe this issue on the tail edge of the printed output, and is not corrected by performing a Secondary Transfer Voltage Adjustment , change the Transfer Output Adjustment for Trail Edge setting. Use this feature to adjust the voltage ratio on the secondary bias transfer roll (2nd BTR) This is where the image is transferred from the belt to the paper. Access this feature from Stock Library > Stock Properties > Advanced Stock Setup > Transfer Output Adjustment for Trail Edge . Decrease the Transfer Output Adjustment for Trail Edge in increments of 10% After every incremental adjustment, run test prints and evaluate the output to determine if additional adjustment is necessary. Use this feature to adjust the voltage ratio on the secondary bias transfer roll (2nd BTR) This is where the image is transferred from the belt to the paper. Access this feature from Stock Library > Stock Properties > Advanced Stock Setup > Transfer Output Adjustment for Trail Edge . Decrease the Transfer Output Adjustment for Trail Edge in increments of 10% After every incremental adjustment, run test prints and evaluate the output to determine if additional adjustment is necessary. Perform an Automatic Density Uniformity Adjustment . Note: This is a press feature and is not a Stock Library feature. Use this feature to correct image quality issues on the output when that image quality is not consistent throughout the entire output For example, the image quality is lighter (faded) or heavier (thicker) on the left or right sides of the output (inboard/outboard). For information and instructions on how to use this feature, refer to  How To Use the Automatic Density Uniformity Adjustment . Use this feature to correct image quality issues on the output when that image quality is not consistent throughout the entire output For example, the image quality is lighter (faded) or heavier (thicker) on the left or right sides of the output (inboard/outboard). For information and instructions on how to use this feature, refer to  How To Use the Automatic Density Uniformity Adjustment .