• Code: 17-900
• Description: 802.1X Authentication Error
• Causes: The 802.1X authentication failed.
• Remedy: 1. Ensure that the 802.1X EAP type, username and password for the machine authentication switch and authentication server match.

• Code: 20-100 ... 20-900
• Description: Fax Faults
• Causes: These are the faults displayed when the machine encounters fax problems. The faults are listed in code order, together with any recommended actions. Please note that the service actions are limited. If the machine has a fax fault without displaying a fault code, go to the 20A Fax Faults Without a Code RAP.
• Remedy: 20-100 Communication Error A communication failure has occurred with either the fax transmission or reception. Resend the fax. 20-110 Mailbox Error The machine is not available for mailbox communication. Go to GP 4 System Administration Tools. Check that the mailbox ID and password are correct. 20-120 Scanning Error While sending a fax using manual dial, a scanning error has occurred. Clear any jams. Switch off the machine, then switch on the machine. Resend the fax. If the fault persists, check the scanner, refer to the 14-100 CCD Lock RAP. 20-200 Group Not Available The user has selected a group location where only a single location can be used, or when the group location is unavailable. Try again, checking for the correct group location. 20-300 Incompatible The remote party does not have the feature the user has requested, for example, polling. Change the settings, then resend the fax. 20-400 Line Busy The remote party did not answer. Wait, then resend the fax. 20-410 Line Error There is a problem with the phone line, affecting transmission or reception. Try again and if necessary, wait for the line to clear. 20-500 Memory Full The fax data memory is full. Delete any unnecessary documents awaiting transmission, or wait until more memory becomes available, or split the current Fax in to smaller units. 20-550 Low Memory The available fax memory is getting low. 20-600 No Answer It has not been possible to connect to the remote fax, even after re-dial attempts. Check that the remote fax is on line and try again. 20-700 Number Not Assigned No number has been assigned for the speed dial location selected. Assign a number to this location or dial the number manually. 20-800 Power Failure During a power-off period, the machine has lost its user memory. Check that the backup battery is holding its charge of about +3V. If necessary, install a new battery. Wait, then resend the fax. 20-900 Retry Redial This indicates that the machine is waiting to re-dial. Press Start to re-dial immediately, or press Stop to cancel the re-dial procedure. Final Actions Perform the following: 1. Install a new fax PWB : 2. Perform the OF7 Main PWB Check RAP.

• Code: 20A
• Description: Fax Faults Without a Code
• Causes: Use this RAP when the machine has a fax fault but does not display a code. If a fax fault code is displayed, go to the 20-100 to 20-900 Fax Faults RAP.
• Remedy: 1. Ensure the telephone line cable is properly connected into the line connector on the Fax PWB module . 2. Ensure the correct dialing mode is selected. Refer to GP 4 System Administration Tools. 3. Use a known good telephone handset or a line test tool to check the telephone line. 4. If sent faxes are blank or light, make sure that the scanner lock is completely unlocked. 5. If necessary install a new fax PWB . 6. Perform OF7 Main PWB Check RAP.

• Code: OF1
• Description: Audible Noise
• Causes: Use this RAP to isolate and identify the source of unusual noises.
• Remedy: 1. Ask the customer if there are any specific machine functions that are noisy. 2. Identify the source of the noise by exercising the machine in all modes. 3. Use diagnostics to run individual components. 4. Go to the relevant subsection: • Main Drives and Paper Transport • LSU • DADF • Tray 2 5. Refer to Possible Causes and Potential Solutions. Main Drives and Paper Transport • Enter dC330 code 04-100 to run the main BLDC motor. The following components will be run. – The print cartridge . – The registration roll . – The registration roll idler . • While the main BLDC motor runs, stack the code 08-810 to energize the tray 1 pickup solenoid and run the tray 1 pickup roll and feed roll . • While the main BLDC motor runs, stack the code 08-850 to energize the registration solenoid and run the registration roll and registration roll idler . • While the main BLDC motor runs, stack the code 08-800 to energize the bypass feed solenoid and run the bypass pickup roll . • Enter dC330 code 04-300 to run the duplex motor. The duplex rolls and , will rotate. • Enter dC330 code 04-200 to run the exit motor. The following fuser components will be run: – The heat roll in the fuser . – The pressure rolls in the fuser and . – Exit roll . • Enter dC330 code 04-120 to run the main fan . • Enter dC330 code 10-500 to run the fuser fan . • Enter dC330 code 09-500 to run the SMPS fan . LSU • Enter dC330 code 06-100 to run the LSU motor. DADF • Enter dC330 code 05-200 to run the scan motor , in the DADF. The following components will be run: – Scan roll . – Exit roll . • While the scan motor runs, stack the code 05-300 to energize the pickup solenoid and run the DADF pickup roll assembly . • While the DADF scan motor runs, stack the code 05-310 to energize the registration solenoid and run the registration roll . Tray 2 • Enter dC330 code 07-210 to run the tray 2 feed motor . The tray 2 feed roll , will rotate. • While the tray 2 feed motor runs, stack the code 08-820 to energise the tray 2 pickup solenoid and run the tray 2 pickup roll assembly . Possible Causes and Potential Solutions Go to the relevant procedure: • Squeaks • Unusual Noise from the Scanner Assembly Squeaks Possible causes are: • Contamination of the bushes and drive shafts. Solution: – Clean the components. – Plastic bushes should be cleaned and lubricated. – Install new components as necessary. • Bearings in cooling fans Solution: – Install new components as necessary. • Mis-adjusted or worn drive belts. Solution: – Install new components as necessary. • Mis-aligned or damaged parts. Solution: – Check for parts that are damaged or out of position. – Adjust the components if appropriate. – Install new components as necessary. • Noise from the DADH input tray document guides. Solution: – Clean the DADH input tray in the area beneath the input guides. Unusual Noise from the Scanner Assembly Possible causes are: • Mis-aligned or damaged parts. • Defective motor driver. Solution: • Check the position of the scan motor and associated gears . • Ensure the CCD module , moves freely. • Install new components as necessary .

• Code: OF2
• Description: UI Touch Screen Error
• Causes: Use this RAP to solve UI touch screen problems when the machine has power but either the display is missing, is too dark or the UI screen responds incorrectly or does not refresh.
• Remedy: 1. If possible, enter dC305 UI test. Perform the relevant tests to check the operation of the UI. 2. Remove the UI, refer to REP 2.1. Check the ribbon cables between the UI PWB and the touch screen . 3. Check the following wiring: • Between CN2 on the UI PWB and CN6 on Main PWB. • Between CN1 on the UI PWB and CN11 on Main PWB. • Between CN11 on the UI PWB and CN10 on Main PWB. 4. If necessary: a. Install new components: • Touch screen . • UI assembly . b. Perform OF7 Main PWB Check RAP.

• Code: OF3
• Description: Air Systems
• Causes: Use this RAP to diagnose faulty machine fans. Faulty fans can cause image quality defects, odours or overheating.
• Remedy: Check the following fans: • SMPS Fan • Main Fan • Fuser Fan SMPS Fan Refer to Wiring Diagram 9. Perform the following: 1. Switch off the machine, then switch on the machine. 2. Enter dC330 code 09-500. Check that the SMPS fan runs at normal speed. 3. Check the wiring between the SMPS fan and CN8 on the Connection PWB. 4. Install new components as necessary: • SMPS fan . • Connection PWB . Main Fan Refer to Wiring Diagram 9. Perform the following: 1. Switch off the machine, then switch on the machine. 2. Enter dC330 code 04-120. Check that the main fan runs at normal speed. 3. Check the wiring between the main fan and CN1 on the Connection PWB. 4. Install new components as necessary: • Main fan . • Connection PWB . Fuser Fan Refer to Wiring Diagram 9. Perform the following: 1. Switch off the machine, then switch on the machine. 2. Enter dC330 code 10-500. Check that the fuser fan runs at normal speed. 3. Check the wiring between the fuser fan and CN2 on the Connection PWB. 4. Install new components as necessary: • Fuser fan . • Connection PWB .

• Code: OF4
• Description: Copying Error
• Causes: Use this RAP if the machine does not copy correctly when the customer uses features such as auto size detect, edge erase, book copying and image shift.
• Remedy: 1. Perform the Scan Edge Print test, GP 18. 2. If the test fails, clean the document glass. 3. If necessary, install a new scanner cover .

• Code: OF5
• Description: Stapler Fault
• Causes: Use this RAP if the stapler fails to operate.
• Remedy: 1. Check the stapler door interlock switch, go to 01-700 Stapler Door Open RAP. 2. Check the wiring between CON1 on the stapler and CN4 on the Connection PWB. 3. Open the stapler door . Check that the paper present switch actuator moves freely and actuates the paper present switch. 4. Install new components as necessary: • Stapler . • Connection PWB .