• Code: 843.05
• Description: Service scanner failure Scanner carriage over run failure The scanner carriage has over run.
• Remedy: 1 Check the connections of the scanner controller PCBA. Are the connectors of the scanner controller card assembly connected properly? Go to step 2. Connect each connector of the scanner controller card assembly properly. 2 Perform a POR. Does the error remain when the power is turned off/on? Replace the scanner controller PCBA. Go to “Scanner controller PCBA removal”. Problem resolved

• Code: 843.10
• Description: Service scanner failure ADF RAM test failure The ADF controller card assembly RAM has failed in the read/write operation.
• Remedy: 1 Check the connection between the ADF controller PCBA and the scanner controller PCBA. Are the ADF controller card assembly and the scanner controller card assembly connected properly? Replace the ADF controller PCBA. Go to “ADF controller PCBA removal”. Connect the ADF controller card assembly and the scanner controller card assembly properly. 2 Perform a POR. Does the error remain when the power is turned off/on? Replace the scanner controller PCBA. Go to “Scanner controller PCBA removal”. Go to step 3.

• Code: 843.11
• Description: failure ADF EEPROM failure The ADF-EEPROM failed during the read/ write operation.
• Remedy: 1 Check the connection of each ADF controller card assembly connector. Is each connector of ADF controller card assembly connected properly? Go to step 2. Connect each connector of ADF controller card assembly properly. 2 Perform a POR. Does the error remain when the power is turned off/on? Replace the ADF controller PCBA. Go to “ADF controller PCBA removal”. Problem resolved

• Code: 843.20
• Description: Service scanner failure Scanner unit assembly connection failure There is an open circuit in the scanner interface cable assembly between the scanner controller card assembly and the RIP card assembly.
• Remedy: 1 Check the connection of each ADF controller card assembly connector. Is each connector of ADF controller card assembly connected properly? Go to step 2. Connect each connector of ADF controller card assembly properly. 2 Check the connection of each RIP card assembly connector. Are the connectors of the RIP card assembly connected properly? Go to step 3. Connect each connector of the RIP card assembly properly. 3 Perform a POR. Does the error remain when the power is turned off/on? Replace the ADF controller PCBA. Go to “ADF controller PCBA removal”. Problem resolved

• Code: 843.21
• Description: Service scanner failure Scanner unit assembly EEPROM failure The scanner unit assembly EEPROM failed during the read/write operation.
• Remedy: 1 Check the connections of the scanner controller card assembly connector Is each connector of scanner controller card assembly connected properly? Go to step 2. Connect each connector of the scanner controller card assembly properly. 2 Perform a POR. Does the error remain when the power is turned off/on? Replace the ADF controller PCBA. Go to “ADF controller PCBA removal”. Problem resolved

• Code: 843.22
• Description: Service scanner failure Scanner unit assembly EEPROM sub system failure The scanner unit assembly EEPROM failed during the read/write operation
• Remedy: 1 Check the connection of each scanner controller card assembly connector. Are the connectors of the scanner controller card assembly connected properly? Go to step 2. Connect each connector of the scanner controller card assembly properly. 2 Perform a POR. Does the error remain when the power is turned off/on? Replace the scanner controller card assembly. Go to “Scanner controller PCBA removal”. Problem resolved

• Code: 843.24
• Description: Service scanner failure Image processing failure An failure occurred in the imageprocessing system.
• Remedy: 1 Check the connections of the scanner controller card assembly. Are the connectors of the scanner controller card assembly connected properly? Go to step 2. Connect each connector of the scanner controller card assembly properly. 2 Check the software version for the scanner controller card assembly. Is the version of the software of the scanner controller card assembly correct? Go to step 3. Upgrade the software of the scanner controller card assembly. 3 Perform a POR. Does the error remain when the power is turned off/on? Replace the scanner controller PCBA. Go to “Scanner controller PCBA removal”. Problem resolved

• Code: 843.25
• Description: Service scanner failure Scanner controller card assembly failure 1 An internal processing failure occurred in the scanner controller card assembly.
• Remedy: 1 Check the connection of each scanner controller card assembly connector. Is each connector of scanner controller card assembly connected properly? Go to step 2. Connect each connector of the scanner controller card assembly properly. 2 Perform a POR. Does the error remain when the power is turned off/on? Replace the scanner controller PCBA. Go to “Scanner controller PCBA removal”. Problem resolved