Code :

Code: 280A
Display: Left printhead error Open top cover and replace the left printhead.
Description: Invalid printhead L has been mounted.
Remedy: Replace with a valid printhead. (An error has occurred but the printhead itself is not damaged, so communication has been maintained properly.)

Code: 280C, 280D, 280E
Display: PHead needs cleaning. Press Online to clear error. The printhead requires cleaning. The printhead requires cleaning. Online=Print Stop=Stop Printing
Description: Printhead R non-ejection warning (Check printhead) Printing paused/ continued printing allowed The level of error is decided as shown in the table below, based on the number of non-ejecting nozzles per color (per chip) and the number of nozzles unable to back up. Depending on the firmware version, the specifications vary as shown in the table below.
Remedy: 1. Check image quality. (Unless there are problems with the image quality, there is no need to replace the printhead.) 2. Replace the printhead.

Code: 2811
Display: Printhead error Open top cover and replace the left printhead.
Description: Incompatible printhead version
Remedy: Replace with a valid printhead. (An error has occurred but the printhead itself is not damaged, so communication has been maintained properly.)

Code: 2812
Display: Right printhead error Open top cover and replace the right printhead.
Description: Incompatible printhead R version
Remedy: Replace with a valid printhead. (An error has occurred but the printhead itself is not damaged, so communication has been maintained properly.)

Code: 2813
Display: Left printhead error Open top cover and replace the left printhead.
Description: Incompatible printhead L version
Remedy: Replace with a valid printhead. (An error has occurred but the printhead itself is not damaged, so communication has been maintained properly.)

Code: 2816
Display: Maintenance cartridge problem. Replace the maintenance cartridge.
Description: Maintenance cartridge EEPROM error Communication is enabled but the information is corrupted. <Maintenance cartridge detection timings> The presence of a maintenance cartridge is detected at the following timings: 1. Before printing/during printing (twice per second)/at the end of printing/ between pages 2. Before a recovery operation/during a recovery operation (twice per second)/ before opening of the ink supply valve 3. When the cartridge is removed and inserted following the occurrence of an error or warning.
Remedy: Replace the maintenance cartridge.

Code: 2817
Display: Maintenance cartridge problem. Replace the maintenance cartridge.
Description: Maintenance cartridge ID error A maintenance cartridge for another model has been mounted. <Maintenance cartridge detection timings> The presence of a maintenance cartridge is detected at the following timings: 1. Before printing/during printing (twice per second)/at the end of printing/ between pages 2. Before a recovery operation/during a recovery operation (twice per second)/ before opening of the ink supply valve 3. When the cartridge is removed and inserted following the occurrence of an error or warning.
Remedy: Replace the maintenance cartridge. (The maintenance cartridge was capable of normal communication when the error occurred.)