• Code: 26.1:01
• Description: Contact failure with yellow ink cartridge
• Causes: Bad contact detected in ISS slot 1 floater.
• Remedy: 1. Remove the yellow ink cartridge and reinstall it into the printer. 2. Replace the yellow ink cartridge. 3. Check that the ISS to yellow ink cartridge cable is not damaged and is correctly connected to the Ink Supply Tubes PCA. 4. Replace the ISS to yellow ink cartridge cable.

• Code: 26.2:01
• Description: Contact failure with black ink cartridge
• Causes: Bad contact detected in ISS slot 2 floater.
• Remedy: 1. Remove the black ink cartridge and reinstall it into the printer. 2. Replace the black ink cartridge. 3. Check that the ISS to black ink cartridge cable is not damaged and is correctly connected to the Ink Supply Tubes PCA. 4. Replace the ISS to black ink cartridge cable.

• Code: 26.3:01
• Description: Contact failure with cyan ink cartridge
• Causes: Bad contact detected in ISS slot 3 floater.
• Remedy: 1. Remove the cyan ink cartridge and reinstall it into the printer. 2. Replace the cyan ink cartridge. 3. Check that the ISS to cyan ink cartridge cable is not damaged and is correctly connected to the Ink Supply Tubes PCA. 4. Replace the ISS to cyan ink cartridge cable.

• Code: 26.4:01
• Description: Contact failure with light magenta ink cartridge
• Causes: Bad contact detected in ISS slot 4 floater.
• Remedy: 1. Remove the light magenta ink cartridge and reinstall it into the printer. 2. Replace the light magenta ink cartridge. 3. Check that the ISS to light magenta ink cartridge cable is not damaged and is correctly connected to the Ink Supply Tubes PCA. 4. Replace the ISS to light magenta ink cartridge cable.

• Code: 26.5:01
• Description: Contact failure with light cyan ink cartridge
• Causes: Bad contact detected in ISS slot 5 floater.
• Remedy: 1. Remove the light cyan ink cartridge and reinstall it into the printer. 2. Replace the light cyan ink cartridge. 3. Check that the ISS to light cyan ink cartridge cable is not damaged and is correctly connected to the Ink Supply Tubes PCA. 4. Replace the ISS to light cyan ink cartridge cable.

• Code: 26:14
• Description: A wrong ink cartridge has been detected
• Causes: A wrong ink cartridge has been detected.
• Remedy: 1. Switch the power off at the rear of the printer, wait briefly, then switch it back on again. 2. Remove the ink cartridges and check that they are the correct ones for this printer. 3. Check that the printer has the latest firmware version; if not, update the firmware to the latest version. 4. Replace the ink cartridges.

• Code: 27.1:01
• Description: Calibration failed due to printhead in slot 1
• Causes: Calibration failed to due to poor performance of the cyan/light cyan printhead in slot 1.
• Remedy: This may impact your print quality. If it becomes unacceptable in the future, clean all printheads and check their status.

• Code: 27.2:01
• Description: Calibration failed due to printhead in slot 2
• Causes: Calibration failed to due to poor performance of the cyan/light cyan printhead in slot 2.
• Remedy: This may impact your print quality. If it becomes unacceptable in the future, clean all printheads and check their status.