Description: In switchbacking of paper for printing on the second side, a recording paper jam has occurred. (The paper feed sensor does not come ON even after the recording paper is fed for the specified paper feeding amount.)
Remedy: User Check - Remove the jammed paper. - Check whether the recording paper being used is within the specification. - Clean the switchback (SB) roller. 1 Foreign materials in the duplex print paper path Remove foreign materials. 2 Paper feed sensor actuator caught on the surrounding parts Check and reposition the paper feed sensor actuator. 3 Main PCB defective Replace the main PCB ASSY.
Code: 20
Display: Cannot Detect
Description: Cannot identify a black ink cartridge. Or noncompliant ink cartridge loaded.
Remedy: User Check - Reload the ink cartridge. - Replace the ink cartridge. 1 Connection failure of flat cables related to the ink refill ASSY Check the connection and reconnect the flat cables. 2 Ink cartridge detection sensor defective Replace the ink cartridge detection sensor PCB ASSY. 3 Ink remaining sensor or highyield ink cartridge sensor defective Replace the ink refill ASSY. 4 Main PCB defective Replace the main PCB ASSY.
Code: 21
Display: Cannot Detect
Description: Cannot identify a yellow ink cartridge. Or noncompliant ink cartridge loaded.
Remedy: User Check - Reload the ink cartridge. - Replace the ink cartridge. 1 Connection failure of flat cables related to the ink refill ASSY Check the connection and reconnect the flat cables. 2 Ink cartridge detection sensor defective Replace the ink cartridge detection sensor PCB ASSY. 3 Ink remaining sensor or highyield ink cartridge sensor defective Replace the ink refill ASSY. 4 Main PCB defective Replace the main PCB ASSY.
Code: 22
Display: Cannot Detect
Description: Cannot identify a cyan ink cartridge. Or noncompliant ink cartridge loaded.
Remedy: User Check - Reload the ink cartridge. - Replace the ink cartridge. 1 Connection failure of flat cables related to the ink refill ASSY Check the connection and reconnect the flat cables. 2 Ink cartridge detection sensor defective Replace the ink cartridge detection sensor PCB ASSY. 3 Ink remaining sensor or highyield ink cartridge sensor defective Replace the ink refill ASSY. 4 Main PCB defective Replace the main PCB ASSY.
Code: 23
Display: Cannot Detect
Description: Cannot identify a magenta ink cartridge. Or noncompliant ink cartridge loaded.
Remedy: User Check - Reload the ink cartridge. - Replace the ink cartridge. 1 Connection failure of flat cables related to the ink refill ASSY Check the connection and reconnect the flat cables. 2 Ink cartridge detection sensor defective Replace the ink cartridge detection sensor PCB ASSY. 3 Ink remaining sensor or highyield ink cartridge sensor defective Replace the ink refill ASSY. 4 Main PCB defective Replace the main PCB ASSY.
Code: 24
Display: Wrong Color Ink
Description: An ink cartridge of wrong color is loaded. (A color ink cartridge is loaded in the black ink cartridge slot.)
Remedy: User Check - Load the ink cartridge into the correct slot. - Replace the ink cartridge. 1 Ink cartridge detection sensor defective Replace the ink cartridge detection sensor PCB ASSY. 2 Ink remaining sensor or highyield ink cartdige sensor defective Replace the ink refill ASSY. 3 Main PCB defective Replace the main PCB ASSY.