HP LaserJet Pro CP1020 - User Guide
9. Close the print cartridge door.
NOTE: After closing the print cartridge door, the 
Ready   light and Attention   light will ash. 
Allow up to three minutes for the product to 
calibrate.
NOTE: If replacing another print cartridge, you 
must close the print cartridge door before 
pressing the Cartridge   button of the next print 
cartridge.
You do not need to wait for the product to 
calibrate when replacing the second print 
cartridge. Instead, press the Cartridge   button 
for the next color to rotate the carousel into 
position. After you have replaced the print 
cartridges, the product calibrates.
NOTE: After every other black cartridge change, 
a cleaning page prints automatically to clean the 
fuser. This cleaning page process takes two 
minutes to complete.
10. When printing, if you receive the status alert 
message Wrong Cartridge in <Color> Slot, 
remove the print cartridge from the specied slot 
and compare the color label on the print cartridge 
to the color label in the slot to determine the 
correct print cartridge for the slot.
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