• Code: 844.01
• Description: Service scanner failure White reference/exposure lamp Illumination failure The large platen glass is not properly installed or missing. The white reference initialization of the scanner unit assembly has failed after a POR or the amount of light from the exposure lamp is inadequate at the start of the scan.
• Remedy: 1 Check the large platen glass. Is the large platen glass installed properly? Go to step 2. Remove and clean the large platen glass. Go to “Large platen glass removal”. Reinstall the large platen glass properly. Go to step 3 2 Remove the large platen glass. Check the bottom of the large platen glass in the vicinity the white reference strip for contamination. Is the vicinity of white reference strip contaminated? Clean the bottom of the large platen glass in the vicinity of the white reference strip. Reinstall the large platen glass properly. Go to step 3. Go to step 4. 3 Perform a POR. Does the error remain? Go to step 4. Problem solved. 4 Check the exposure lamp for operation. Perform the exposure lamp test. 1. Enter the Diagnostics Menu. 2. Touch MOTOR TESTS. 3. Touch Scanner Motor Tests. 4. Touch Exposure lamp. Does the exposure lamp operate properly? Go to step 8. Go to step 5. 5 Check the exposure lamp for connection. Is the above component connected properly? Replace the exposure lamp. Go to “Exposure lamp removal”. Replace the connection. 6 Check the exposure lamp PS card assembly. Is the above card properly connected to the scanner controller card assembly? Replace the exposure lamp PS card assembly. Go to “Exposure lamp PS card assembly removal”. Replace the connection. 7 Check the scanner PS card assembly for connection. Is the above card connected properly? Replace the scanner PS card assembly. Go to “Scanner PS card assembly removal”. Replace the connection. 8 Perform a POR. Does the error continue when the power is turned off/on? Replace the scanner controller card assembly. Go to “Scanner controller card assembly removal”. Problem solved.

• Code: 845.00
• Description: Service scanner failure CCD failure A failure has occurred with the CCD sensor assembly.
• Remedy: 1 Check the CCD/lens assembly connection. Is the CCD/lens assembly connected properly? Go to step 2. Replace the connection. 2 Check all the connections on the scanner controller card assembly. Are all the connections connected properly? Replace the CCD/lens assembly. Replace the connection. 3 Perform a POR. Does the error remain? Replace the scanner controller card assembly. Go to “Scanner controller card assembly removal”.

• Code: 845.01
• Description: Service scanner failure CCD initialization (lamp on) failure The CCD does not make a correct output when it receives a specified amount of light.
• Remedy: 1 Check the exposure lamp for operation. Perform the exposure lamp test. 1. Enter the Diagnostics Menu. 2. Touch MOTOR TESTS. 3. Touch Scanner Motor Tests. 4. Touch Exposure lamp. Does the exposure lamp operate properly? Go to step 6. Go to step 3. 2 Check the exposure lamp for connection. Is the above component connected properly? Replace the exposure lamp. Go to “Exposure lamp removal”. Replace the connection. 3 Check the exposure lamp PS card assembly. Is the above card properly connected to the scanner controller card assembly? Replace the exposure lamp PS card assembly. Go to “Exposure lamp PS card assembly removal”. Replace the connection. 4 Check the scanner PS card assembly for connection. Is the above card connected properly? Replace the scanner PS card assembly. Go to “Scanner PS card assembly removal”. Replace the connection. 5 Perform a POR. Does the error remain when the power is turned off/on? Replace the scanner controller card assembly. Go to “Scanner controller card assembly removal”. Problem solved.

• Code: 845.02
• Description: Service scanner failure CCD initialization (lamp off) failure The CCD does not make a correct output when light is absent.
• Remedy: 1 Check the connection 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 Perform a POR. Does the error remain when the power is turned off/on? Replace the scanner controller card assembly. Go to “Scanner controller card assembly removal”. Problem solved. 3 Perform a POR. Does the error remain when the power is turned off/on again? Replace the scanner PS card assembly. Go to “Scanner PS card assembly removal”. Problem solved.

• Code: 846.00
• Description: Service scanner failure Scanner communication failure Controller detected failures. Scanner download 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 card assembly. 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 card assembly. Go to “Scanner controller card assembly removal”. Go to step 4. Problem solved.

• Code: 846.01
• Description: Service scanner failure Scanner communication failure Controller detected failures. Detected I/O failure.
• 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 card assembly. 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 card assembly. Go to “Scanner controller card assembly removal”. Go to step 4. Problem solved.

• Code: 846.10
• Description: Service scanner failure Sensor (ADF width APS X) failure The combinations of outputs from the sensor (ADF width APS 1), sensor (ADF width APS 2) and sensor (ADF width APS 3) are abnormal.
• Remedy: 1 Check the sensor (ADF width APS 1) for operation. Perform the sensor (ADF width APS 1) test. Open the ADF left cover assembly. 1. Enter the Diagnostics Menu. 2. Touch SCANNER TESTS. 3. Touch Sensor Tests. 4. Touch ADF width APS 1. Operate the actuator of the sensor (ADF width APS 1). Does the display on the operator panel change every time the sensing area of the above sensor is blocked? Go to step 2. Go to step 3. 2 Check the sensor (ADF width APS 1) for connection. Is the above sensor connected properly? Replace the sensor (ADF width APS 1). Go to “Sensor (ADF width APS 1)”. Replace the connection. 3 Check the sensor (ADF width APS 2) for operation. Perform the sensor (ADF width APS 2) test. Open the ADF left cover assembly. 1. Enter the Diagnostics Menu. 2. Touch SCANNER TESTS. 3. Touch Sensor Tests. 4. Touch ADF width APS 2. Operate the actuator of the sensor (ADF width APS 2). Does the display on the operator panel change every time the sensing area of the above sensor is blocked? Go to step 6. Go to step 5. 4 Check the sensor (ADF width APS 2) for connection. Is the above sensor connected properly? Replace the sensor (ADF width APS 2). Go to “Sensor (ADF width APS 2)”. Replace the connection. 5 Check the sensor (ADF width APS 3) for operation. Perform the sensor (ADF width APS 3) test. Open the ADF left cover assembly. 1. Enter the Diagnostics Menu. 2. Touch SCANNER TESTS. 3. Touch Sensor Tests. 4. Touch ADF width APS 3. Operate the actuator of the sensor (ADF width APS 3). Does the display on the operator panel change every time the sensing area of the above sensor is blocked? Go to step 8. Go to step 7. 6 Check the sensor (ADF width APS 3) for connection. Is the above sensor connected properly? Replace the sensor (ADF width APS 3). Go to “Sensor (ADF width APS 3)”. Replace the connection. 7 Place an undamaged document in the ADF, and perform a ADF test. Does the error remain? Replace the ADF controller card assembly. Go to “ADF controller card assembly removal”. Go to step 8.

• Code: 846.12
• Description: Service scanner failure Scanner unit assembly software logic failure A software failure was detected by the scanner controller card assembly.
• Remedy: 1 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 2. Upgrade the software of the scanner controller card assembly. 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 card assembly removal”. Problem solved.