HP Color LaserJet Enterprise CP4020 Service Manual - Page 389

Table 3-14 Control-panel messages (continued) Description Recommended action Bad Signature Upgrade cancelled The firmware upgrade code does not match the product signature. Download the correct firmware upgrade file for this product, and then reinstall the upgrade. See the product user guide for more information. BLACK CARTRIDGE LOW The product indicates when a supply level is low. Actual print cartridge life might vary. You do not need to replace the print cartridge at this time unless print quality is no longer acceptable. If print quality is no longer acceptable, replace the print cartridge. Consider purchasing a replacement cartridge so it is available when the installed cartridge has reached the end of its estimated life. See Print cartridges on page 74. BLACK CARTRIDGE LOW LESS THAN XXXX PAGES The product indicates when a supply level is low. Actual print cartridge life might vary. You do not need to replace the print cartridge at this time unless print quality is no longer acceptable. Estimated pages remaining is based upon the historical page coverage of this product. If print quality is no longer acceptable, replace the print cartridge. Consider purchasing a replacement cartridge so it is available when the installed cartridge has reached the end of its estimated life. See Print cartridges on page 74. BLACK CARTRIDGE VERY LOW The product indicates when a supply level is very low. Actual print cartridge life might vary. You do not need to replace the print cartridge at this time unless print quality is no longer acceptable. After an HP supply has reached the very low threshold, the HP premium protection warranty for that supply has ended. If print quality is no longer acceptable, replace the print cartridge. Consider purchasing a replacement cartridge so it is available when the installed cartridge has reached the end of its estimated life. See Print cartridges on page 74. BLACK CARTRIDGE VERY LOW PRINTING BLACK ONLY The product indicates when a supply level is very low. The product has been configured to print using only black when the level of a color supply is very low. The actual print cartridge life might vary. You do not need to replace the cartridge at this time unless print quality is no longer acceptable. After an HP supply has reached the very low threshold, the HP premium protection warranty for that supply has ended. To stop printing black only, change the AT VERY LOW menu item for Color Cartridges to a setting other than PRINT IN BLACK or replace the very low color cartridges. Consider purchasing replacement cartridges so they are available when the installed cartridges have reached the end of their estimated lives. See Print cartridges on page 74. BLACK CARTRIDGE VERY LOW To continue press OK The product indicates when a supply level is very low. Actual print cartridge life might vary. Consider having a replacement print cartridge available to install when print quality is no longer acceptable. You do not need to replace the print cartridge at this time unless print quality is no longer acceptable. After an HP supply has reached the very low threshold, the HP premium protection warranty for that supply has ended. Press the OK button to continue. If print quality is no longer acceptable, replace the print cartridge. Consider purchasing a replacement cartridge so it is available when the installed cartridge is empty. See Print cartridges on page 74. Calibrating... Displays during calibration. No action is necessary. CALIBRATION RESET PENDING Processing... A calibration reset will occur when all jobs are To begin the reset sooner, cancel all jobs by processed. pressing the Stop button . Canceling... The product is canceling the current job. No action is necessary. CARD SLOT NOT FUNCTIONAL The compact flash card in slot is not working correctly. Remove the card from the slot indicated, and replace with a new card. ENWW Tools for troubleshooting 357