• Code: 842.01
• Description: Service scanner failure Scanner communication failure Controller detected a communication failure packet timeout.
• Remedy: 1 Check the scanner interface cable assembly connection between the RIP card assembly and the scanner unit assembly. Is the scanner interface cable assembly connected properly? Go to step 2. Replace the connection. 2 Check all connections of the scanner controller PCBA. Are the connections of the scanner controller card assembly connected properly? Go to step 3. Connect each connector of the scanner controller card assembly properly. 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”. Go to step 4. Problem resolved 4 Perform a POR. Does the error remain when the power is turned off/on again? Replace the RIP PCBA. Go to “RIP PCBA removal”. Problem resolved

• Code: 842.02
• Description: Service scanner failure Scanner communication failure Controller detected a communication failure. Invalid message checksum.
• Remedy: 1 Check the scanner interface cable assembly connection between the RIP card assembly and the scanner unit assembly. Is the scanner interface cable assembly connected properly? Go to step 2. Replace the connection. 2 Check all connections of the scanner controller PCBA. Are the connections of the scanner controller card assembly connected properly? Go to step 3. Connect each connector of the scanner controller card assembly properly. 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”. Go to step 4. Problem resolved 4 Perform a POR. Does the error remain when the power is turned off/on again? Replace the RIP PCBA. Go to “RIP PCBA removal”. Problem resolved

• Code: 842.03
• Description: Service scanner failure Scanner communication failure Controller detected a communication failure. Invalid message parameter(s).
• Remedy: 1 Check the scanner interface cable assembly connection between the RIP card assembly and the scanner unit assembly. Is the scanner interface cable assembly connected properly? Go to step 2. Replace the connection. 2 Check all connections of the scanner controller PCBA. Are the connections of the scanner controller card assembly connected properly? Go to step 3. Connect each connector of the scanner controller card assembly properly. 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”. Go to step 4. Problem resolved 4 Perform a POR. Does the error remain when the power is turned off/on again? Replace the RIP card assembly. Go to “RIP PCBA removal”. Problem resolved

• Code: 842.04
• Description: Service scanner failure Scanner communication failure Controller detected a communication failure. Invalid message command.
• Remedy: 1 Check the scanner interface cable assembly connection between the RIP card assembly and the scanner unit assembly. Is the scanner interface cable assembly connected properly? Go to step 2. Replace the connection. 2 Check all connections of the scanner controller PCBA. Are the connections of the scanner controller card assembly connected properly? Go to step 3. Connect each connector of the scanner controller card assembly properly. 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”. Go to step 4. Problem resolved 4 Perform a POR. Does the error remain when the power is turned off/on again? Replace the RIP PCBA. Go to “RIP PCBA removal”. Problem resolved

• Code: 842.10
• Description: failure Scanner unit assembly - ADF communication failure Communication failure occurred between the scanner controller card assembly and the ADF controller card assembly.
• Remedy: 1 Check all connections of the scanner controller card assembly. Are the connections of the scanner controller card assembly connected properly? Go to step 2. Replace all connections. 2 Check all connections of the ADF controller PCBA. Are the connections of the ADF controller card assembly connected properly? Go to step 3. Replace all connections. 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 4 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: 842.11
• Description: Service scanner failure Scanner communication failure (by scanner) Communication failure occurred between the scanner controller card assembly and the RIP card assembly.
• Remedy: 1 Check all connections of the scanner controller card assembly. Are the connections of the scanner controller card assembly connected properly? Go to step 2. Replace all connections. 2 Check all connections of the ADF controller PCBA. Are the connections of the ADF controller card assembly connected properly? Go to step 3. Replace all connections. 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 4 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: 842.12
• Description: Service scanner failure Scanner unit assembly communication failure Communication failure occurred between the scanner controller card assembly and the RIP card assembly.
• Remedy: 1 Check all connections of the scanner controller card assembly. Are the connections of the scanner controller card assembly connected properly? Go to step 2. Replace all connections. 2 Check all connections of the ADF controller PCBA. Are the connections of the ADF controller card assembly connected properly? Go to step 3. Replace all connections. 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 4 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: 843.00
• Description: Service scanner failure Sensor (scanner HP) failure An failure occurred while counting the pulses of the scanner drive motor assembly. After the Carriage Motor turned on, the sensor (scanner HP) did not turn on within the specified time.
• Remedy: 1 Check the scanner carriage rails. Is there any foreign substance on the scanner rails? Clean and lubricate the scanner carriage rails. Go to step 2. 2 Check the sensor (FB scanner HP) for operation. Perform the sensor (FB scanner HP) test. Remove the large platen glass. Go to “Large platen glass removal”. 1. Enter the Diagnostics Menu. 2. Touch SENSOR TESTS. 3. Touch ADF/SCANNER TESTS. 4. Touch Sensor (FB Scanner HP). Gently move the scanner carriage from side to side. Does the display on the operator panel change every time the sensing area of the above sensor is blocked? Go to step 4. Go to step 3. 3 Check the sensor (FB scanner HP) for connection. Is the above sensor connected properly? Replace the sensor (FB scanner HP). Go to “Sensor (FB scanner HP) removal”. Replace the connection. 4 Check the scanner carriage motor for connection. Is the above motor connected properly? Replace the scanner carriage motor. Go to “Scanner carriage motor removal”. Replace the connection. 5 Place media on the large platen and perform a scanner test. Does the error remain? Replace the scanner controller PCBA. Go to “Scanner controller PCBA removal”. Problem resolved