Code :

Code: 27.3:01
Description: Printhead (color n)
Causes: Calibration failed to due to poor performance of the Magenta/Cyan Printhead (T7100) or Dark Gray Printhead (T7100 Monochrome) in slot 3
Remedy: This may impact your print quality. If it becomes unacceptable in the future, clean all printheads and check their status.

Code: 27.4:01
Description: Printhead (color n)
Causes: Calibration failed to due to poor performance of the Magenta/Cyan Printhead (T7100) or Dark Gray Printhead (T7100 Monochrome) in slot 4
Remedy: This may impact your print quality. If it becomes unacceptable in the future, clean all printheads and check their status.

Code: 27.5:01
Description: Printhead (color n)
Causes: Calibration failed to due to poor performance of the Matte Black Printhead (T7100) in slot 5; the T7100 Monochrome should not experience this error
Remedy: This may impact your print quality. If it becomes unacceptable in the future, clean all printheads and check their status.

Code: 27.6:01
Description: Printhead (color n)
Causes: Calibration failed to due to poor performance of the Matte Black Printhead (T7100) in slot 6; the T7100 Monochrome should not experience this error
Remedy: This may impact your print quality. If it becomes unacceptable in the future, clean all printheads and check their status.

Code: 27.7:01
Description: Printhead (color n)
Causes: Calibration failed to due to poor performance of the Gray/Dark Gray Printhead (T7100) in slot 7; the T7100 Monochrome should not experience this error
Remedy: This may impact your print quality. If it becomes unacceptable in the future, clean all printheads and check their status.

Code: 27.8:01
Description: Printhead (color n)
Causes: Calibration failed to due to poor performance of the Gray/Dark Gray Printhead (T7100) in slot 8; the T7100 Monochrome should not experience this error
Remedy: This may impact your print quality. If it becomes unacceptable in the future, clean all printheads and check their status.

Code: 28.1:01
Description: Printhead (color n)
Causes: The Yellow Printhead (T7100) or Matte Black Printhead (T7100 Monochrome) in slot 1 is deteriorating
Remedy: This may impact your print quality. If it becomes unacceptable in the future, replace that printhead with a new one. NOTE: This system error appears only after the printhead is out of warranty.

Code: 28.1:02
Description: Printhead (color n)
Causes: The Yellow Printhead (T7100) or Matte Black Printhead (T7100 Monochrome) in slot 1 is nearing the end of its useful life
Remedy: This printhead may have reached a degradation level that prevents the printer from producing acceptable prints consistently. If it becomes unacceptable in the future, run the Clean (Recover) Printhead procedure. NOTE: This system error appears only after the printhead is out of warranty.