• Code: 077-328
• Description: Option Feeder Mode Fail The Option Feeder error has occurred.
• Causes: • Feeder PWB, PL 15.2.33
• Remedy: 1. Check the Tray where the problem has occurred. 2. Check the firmware version of the Feeder PWB. Is it the latest Feeder PWB firmware version? If Feeder PWB firmware version is not available, replace the Feeder PWB. Replace the Feeder PWB. Update the firmware version of the Feeder PWB.

• Code: 091-312
• Description: HVPS Error CC HVPS failure.
• Causes: • HVPS2 PWB, PL 12.1.2 • MCU PWB, PL 12.1.15 • HVPS1 PWB, PL 12.2.15 • Top Harness Assembly, PL 12.2.24 • Main Harness Assembly, PL 12.3.1
• Remedy: 1. Check the connection between the HVPS2 PWB and MCU PWB. Are the connectors P/J468, P/J4681, and P/J552 connected securely? Go to step 2. Connect the connectors P/J468, P/J4681, and P/J552. 2. Check the conductivity between the HVPS2 PWB and Relay Connector. Is the connection between P/J552 <=> P/J4681 conducting properly? Go to step 3. Replace the Top Harness Assembly. 3. Check the conductivity between the Relay Connector and MCU PWB. Is the connection between P/J4681 <=> P/J468 conducting properly? Go to step 4. Replace the Main Harness Assembly. 4. Check the connection between the HVPS1 PWB and MCU PWB. Are the connectors P/J477 and P/J551 connected securely? Go to step 5. Connect the connectors P/J477 and P/J551. 5. Check the conductivity between the HVPS1 PWB and MCU PWB. Is the connection between P/J551 <=> P/J477 conducting properly? Go to step 6. Replace the Main Harness Assembly. 6. Check the voltage supply (+24VDC) to the HVPS2 PWB. Measure the voltage between the MCU PWB GND <=> P/J468B-B10. Is there a voltage (approx. +24VDC) output? Close the Interlock Switch and check. Go to step 7. Go to +24VDC Power Troubleshooting. 7. Check the voltage supply (+24VDC) to the HVPS1 PWB. Measure the voltage between the MCU PWB GND <=> P/J477-9. Is there a voltage (approx. +24VDC) output? Close the Interlock Switch and check. Replace the HVPS2 PWB. Go to step 8. Go to +24VDC Power Troubleshooting. 8. Does the error persist? Replace the HVPS1 PWB. Go to step 9. Troubleshooting complete. 9. Does the error persist? Replace the MCU PWB. Troubleshooting complete.

• Code: 091-402, 091-913
• Description: (K) Imaging Unit Error: Life End Imaging Unit error has occurred due to one of the following problems. • Indicates that it is time to replace the Imaging Unit. • The Imaging Unit life end is detected. • 091-402: Imaging Unit Quality Life End • 091-913: Imaging Unit K End Of Life
• Causes: • Imaging Unit (K), PL 6.1.4
• Remedy: 1. Replace the Imaging Unit (K)).

• Code: 091-407
• Description: (K) Imaging Unit ID Error Imaging Unit error has occurred due to one of the following problems: • Imaging Unit K CRUM Comm Fail • Imaging Unit K CRUM Data Broken • Imaging Unit K CRUM Data Mismatch
• Causes: • Imaging Unit (K), PL 6.1.4
• Remedy: 1. Check the installation of the Imaging Unit (K)). Is there an Imaging Unit other than for (K) color installed? Or, is there an Imaging Unit for other than this printer installed? Replace the Imaging Unit (K)). Reinstall the Imaging Unit (K).

• Code: 091-417, 091-924
• Description: (Y) Imaging Unit ID Error Imaging Unit error has occurred due to one of the following problems. • Imaging Unit Y CRUM Comm Fail • Imaging Unit Y CRUM Data Broken • Imaging Unit Y CRUM Data Mismatch • Incorrect data in the Imaging Unit Y CRUM recognition area. • 091-417: Imaging Unit Y CRUM Trouble Info • 091-924: Imaging Unit Y CRUM Data Mismatch
• Causes: • Imaging Unit (Y/ M/ C), PL 6.1.1
• Remedy: 1. Check the installation of the Imaging Unit. (Y)). Is there an Imaging Unit other than for (Y) color installed? Or, is there an Imaging Unit for other than this printer installed? Replace the Imaging Unit (Y)). Reinstall the Imaging Unit (Y).

• Code: 091-427, 091-925
• Description: (M) Imaging Unit ID Error Imaging Unit error has occurred due to one of the following problems. • Imaging Unit M CRUM Comm Fail • Imaging Unit M CRUM Data Broken • Imaging Unit M CRUM Data Mismatch • Incorrect data in the Imaging Unit M CRUM recognition area. • 091-427: Imaging Unit M CRUM Trouble Info • 091-925: Imaging Unit M CRUM Data Mismatch
• Causes: • Imaging Unit (Y/ M/ C), PL 6.1.1
• Remedy: 1. Check the installation of the Imaging Unit (M)). Is there an Imaging Unit other than for (M) color installed? Or, is there an Imaging Unit for other than this printer installed? Replace the Imaging Unit (M)). Reinstall the Imaging Unit (M).

• Code: 091-437, 091-926
• Description: (C) Imaging Unit ID Error Imaging Unit error has occurred due to one of the following problems. • Imaging Unit C CRUM Comm Fail • Imaging Unit C CRUM Data Broken • Imaging Unit C CRUM Data Mismatch • Incorrect data in the Imaging Unit C CRUM recognition area. • 091-437: Imaging Unit C CRUM Trouble Info • 091-926: Imaging Unit C CRUM Data Mismatch
• Causes: • Imaging Unit (Y/ M/ C), PL 6.1.1
• Remedy: 1. Check the installation of the Imaging Unit (C)). Is there an Imaging Unit other than for (C) color installed? Or, is there an Imaging Unit for other than this printer installed? Replace the Imaging Unit (C)). Reinstall the Imaging Unit (C).

• Code: 091-480, 091-481, 091-482
• Description: (Y/ M/ C) Imaging Unit Error: Life End The (Y/ M/ C) Imaging Unit Life End error has occurred due to one of the following problems. • Imaging Unit (Y/ M/ C) Quality End of Life • The Imaging Unit life end is detected. • 091-480: Imaging Unit Y Quality End of Life • 091-481: Imaging Unit M Quality End of Life • 091-482: Imaging Unit C Quality End of Life
• Causes: • Imaging Unit (Y/ M/ C), PL 6.1.1
• Remedy: 1. Replace the Imaging Unit (Y/ M/ C)).