Description: In duplex printing, a sensor error has occurred during printing on the second side. (During switchbacking, the registration sensor outputs an unexpected signal.)
Code: 17
Description: Recording paper size error. (Duplex PC print/Duplex copy) (Detected by the paper width sensor or registration sensor)
Code: 18
Description: In switchbacking of paper for printing on the second side, a recording paper jam has occurred. (The registration sensor does not come ON within the specified paper feeding amount.)
Code: 20
Description: Cannot identify a black ink cartridge. Or noncompliant ink cartridge loaded.
Code: 21
Description: Cannot identify a yellow ink cartridge. Or noncompliant ink cartridge loaded.
Code: 22
Description: Cannot identify a cyan ink cartridge. Or noncompliant ink cartridge loaded.
Code: 23
Description: Cannot identify a magenta ink cartridge. Or noncompliant ink cartridge loaded.
Code: 24
Description: An ink cartridge of wrong color is loaded. (A color ink cartridge is loaded in the black ink cartridge slot.)