• Code: 077-907
• Description: Duplex Sensor Static Jam RAP When the power was turned ON, the M/C was stopped (Cycle Down/ Shut Down), or when the interlocks were closed (all interlocks including options), the Duplex Sensor detected paper.
• Remedy: Check the following: • The Duplex Sensor for remaining paper, contamination, Actuator return failure, or improper installation • The Duplex Sensor for failure: Component Control [077-105] (PL 14.4) • The connection between the Duplex Sensor P/J109 and the MCU PWB P/J409 for open circuit, short circuit, and poor contact Reload the machine software (GP 16). If no problems are found, replace the MCU PWB (PL 18.2).

• Code: 078-100
• Description: Tray 6 (HCF) Pre Misfeed RAP Tray2 Pre Feed Sensor is not turned ON by the paper in specified time from Tray 2 Feed Start.
• Remedy: Execute Component Control [078-100], Tray 6 Pre Feed. Sensor. Block and unblock the Sensor. The display changes. Y↓N→The connection between the Tray 6 Pre Feed. Sensor PF/JF61 and the HCF PWB PF/ JF02 for open circuit, short circuit, and poor contact. If OK, replace the Tray 6 Pre Feed. Sensor (PL 10.5) Open and close Tray 6. The Tray 6 Lift/Feed Motor operates Y↓N→Check the circuit between PF/JF58 on the Tray 6 Lift/Feed Motor and PF/JF06 on the HCF PWB for an open or a short circuit, or a loose or damaged connector. The wires are OK. Y↓N→Repair as required. Check that the resistance through Tray 6 Lift/Feed Motor is approx. 0.8 ohms at the measurement points below. • PF/JF58-3 to pins 1/2 • PF/JF58-4 to pins 5/6 The resistances are OK+ Y↓N→Replace the Tray 6 Lift/Feed Motor (PL 10.4). There is +24VDC from PF/JF06 pins 3 and 4, to GND. Y↓N→Go to IOT wirenets and troubleshoot the +24VDC circuit. Replace the Tray 6 Lift/Feed Motor (PL 10.4). If the problem persists, replace the HCF PWB (PL 10.8). Check the following: • The Tray 6 Pre Feed Sensor for failure: Component Control [078-100] (PL 10.5) • The Tray 6 Feed/Lift Motor failure: Component Control [078-003] CW (PL 10.4) • The Tray 6 In Sensor failure: Component Control [078-204] CW (PL 10.1) • The connection between the Tray 2 Pre Feed Sensor PF61 and the HCF PWB PF02 for open circuit, short circuit, and poor contact Reload the machine software (GP 16). If no problems are found, replace the MCU PWB (PL 18.2).

• Code: 078-101
• Description: HCF to Feed Out Sensor Fault RAP The Tray 2 Feed Out Sensor did not come on within the specified time after the start of feed from Tray 6 (HCF).
• Remedy: Clear the paper jam. Operate the printer from Tray 2. A 072-101 misfeed occurs. Y↓N→Press the Stop button. Turn ON Component Control [077-033] (TM Takeaway Motor). Does the TM Takeaway Motor rotate? Y↓N→Is the voltage between the TM Takeaway Motor P/J224-4/6 (+) and the GND (-) +24VDC? Y↓N→Go to +24VDC Power RAP. Turn the power OFF, disconnect the TM Takeaway Motor connector P/J224. Measure the TM Takeaway Motor wire wound resistance. • Between the TM Takeaway Motor P/J224-2 and P/J224-1 • Between the TM Takeaway Motor P/J224-2 and P/J224-3 • Between the TM Takeaway Motor P/J224-5 and P/J224-4 • Between the TM Takeaway Motor P/J224-5 and P/J224-6 Is the resistance approx. 0.85Ohm for each? (When the temperature is 25 °C) Y↓N→Replace the TM Takeaway Motor (PL 11.5) Measure the resistance between the disconnected TM Takeaway Motor connectors P/J224-1/3/4/6 and the Frame. Is the resistance infinite for all? Y↓N→Check the wires of the pins with non-infinite resistance for peeled-off coatings and short circuits due to pinching. Check the connection between the Tray Module PWB P/J554 and the TM Takeaway Motor P/J224 for open circuit, short circuit, and poor contact. If no problems are found, replace the following parts in sequence: • Tray Module PWB (PL 11.13) • MCU PWB (PL 18.2) Check the following: • Takeaway Rolls 1 and 2 and 3 for dirt/paper particles/wear/a poor rotation • HCF and IOT for a poor docking • HCF Transport Belt for poor tension • HCF Transport Roll for dirt/paper particles/wear/a poor rotation • HCF Takeaway Rolls 1-3 for dirt/ paper particles/wear/a poor rotation • HCF Exit Roll for dirt/ paper particles/wear/a poor rotation • Drive gears for wear/breakage • If the results of the above checks are OK, replace Tray Module PWB (PL 11.13). Go to 072-101 Tray 2 Misfeed RAP.

• Code: 078-102
• Description: HCF to Registration Sensor Fault RAP The paper transported from HCF did not turn on the Registration Sensor within the specified time.
• Remedy: Execute Component Control [077-104], Reg. Sensor. Block and unblock the Reg. Sensor. The display changes. Y↓N→The connection between the Registration Sensor P/J121 and the MCU PWB P/J 415 for open circuit, short circuit, and poor contact. If OK, replace the Registration Sensor (PL 15.1) Press the Stop button. Turn ON Component Control [077-033] (TM Takeaway Motor). Does the TM Takeaway Motor rotate? Y↓N→Is the voltage between the TM Takeaway Motor P/J224-2/5 (+) and the GND (-) +24VDC? Y↓N→Go to +24VDC Power RAP. Turn the power OFF, disconnect the TM Takeaway Motor connector P/J224. Measure the TM Takeaway Motor wire wound resistance. • Between the TM Takeaway Motor P/J224-2 and P/J224-1 • Between the TM Takeaway Motor P/J224-2 and P/J224-3 • Between the TM Takeaway Motor P/J224-5 and P/J224-4 • Between the TM Takeaway Motor P/J224-5 and P/J224-6 Is the resistance approx. 0.85Ohm for each? (When the temperature is 25 °C) Y↓N→Replace the TM Takeaway Motor (PL 11.5) Measure the resistance between the disconnected TM Takeaway Motor connectors P/ J224-1/3/4/6 and the Frame. Is the resistance infinite for all? Y↓N→Check the wires of the pins with non-infinite resistance for peeled-off coatings and short circuits due to pinching. Check the connection between the Tray Module PWB P/J554 and the TM Takeaway Motor P/J224 for open circuit, short circuit, and poor contact. If no problems are found, replace the following parts in sequence: • Tray Module PWB (PL 11.13) • MCU PWB (PL 18.2) Check the following: • Takeaway Rolls 1 and 2 and 3 for dirt/paper particles/wear/a poor rotation • HCF and IOT for a poor docking • HCF Transport Belt for poor tension • HCF Transport Roll for dirt/paper particles/wear/a poor rotation • HCF Takeaway Rolls 1-3 for dirt/ paper particles/wear/a poor rotation • HCF Exit Roll for dirt/ paper particles/wear/a poor rotation • Drive gears for wear/breakage • If the results of the above checks are OK, replace Tray Module PWB (PL 11.13).

• Code: 078-104
• Description: HCF Feed Out Sensor Fault RAP The paper transported from HCF did not turn on the Tray 6 Feed Out Sensor within the specified time.
• Remedy: Execute Component Control [078-101], Tray 6 Feed out Sensor. Block and unblock the Feed Out Sensor. The display changes. Y↓N→Go to BSD and check the following for an open wire, short or poor contact: • Feed Out Sensor PF/JF67-1 to HCF PWB PF/JF01-3 • Feed Out Sensor PF/JF67-3 to HCF PWB PF/JF01-1 • Feed Out Sensor PF/JF67-2 to HCF PWB PF/JF01-2 If OK, replace the Feed Out Sensor (PL 10.8) before replacing the HCF PWB (PL 10.8). Execute Component Control [078-093], Tray 6 Takeaway Motor. There is operation noise from the Takeaway Motor. Y↓N→Check the circuit between PF/JF57 on the Tray 6 Takeaway Motor and PF/JF06 on the HCF PWB for an open or a short circuit, or a loose or damaged connector. The wires are OK. Y↓N→Repair as required. Check that the resistance through Tray 6 Takeaway Motor is approx. 0.8 ohms (at 25 degrees C / 77 degrees F) at the measurement points below. • PF/JF57-3 to pins 1/2 • PF/JF57-4 to pins 5/6 The resistances are OK Y↓N→Replace the Tray 6 Takeaway Motor (PL 10.8). There is +24VDC from PF/JF06 pins 9 and 10, to GND. Y↓N→Go to IOT wirenets and troubleshoot the +24VDC circuit. Replace the Tray 6 Takeaway Motor (PL 10.8). If the problem persists, replace the HCF PWB (PL 10.8). Check the HCF Take Away components and repair as required (PL 10.4).

• Code: 078-216
• Description: Logic Failure RAP Cannot read from and/or write to the NVM in HCF Module. HCF Module fatal error is detected.
• Remedy: Check wires and connectors between the HCF and the IOT. Reload Software. If the problem continues, replace the HCF PWB (PL 10.8).

• Code: 078-250
• Description: HCF Lift Fault RAP HCF Tray Lift failure. The Tray 6 Level Sensor does not turn ON within the specified time after the trays were inserted.
• Remedy: Open and close Tray 6. The Tray 6 Lift/Feed Motor operates Y↓N→Check the circuit between PF/JF58 on the Tray 6 Lift/Feed Motor and PF/JF 06 on the HCF PWB for an open or a short circuit, or a loose or damaged connector. The wires are OK. Y↓N→Repair as required. Check that the resistance through Tray 6 Lift/Feed Motor is approx. 0.8 ohms at the measurement points below. • PF/JF58-3 to pins 1/2 • PF/JF58-4 to pins 5/6 The resistances are OK+ Y↓N→Replace the Tray 6 Lift/Feed Motor (PL 10.4). There is +24VDC from PF/JF pins 3 and 4, to GND. Y↓N→Go to IOT wirenets and troubleshoot the +24VDC circuit. Replace the Tray 6 Lift/Feed Motor (PL 10.4). If the problem persists, replace the HCF PWB (PL 10.8). Check the installation of the Tray 6 Stack Height Sensor (PL 10.5) and the operation of the actuator. The Stack Height Sensor is installed correctly and the actuator works. Y↓N→Reinstall the Tray 6 Stack Height Sensor. Execute Component Control [078-201], Tray 6 Stack Height Sensor. Manually activate the Tray 6 Stack Height Sensor. The display changes. Y↓N→Check the wires between PF/JF62 on the Tray 6 Stack Height Sensor and PF/JF 102 on the HCF PWB for an open or shorted circuit, or a loose or damaged connector. The wires are OK. Y↓N→Repair as required. There is approx. +5VDC from PF/JF 02 pin 3 to GND. Y↓N→Replace the HCF PWB (PL 10.8). Monitor the voltage between PF/JF62-2 (+) and GND (-) while you activate the actuator of the Tray 6 Stack Height Sensor. The voltage changes. Y↓N→Replace the Tray 6 Stack Height Sensor (PL 10.5). Replace the following the HCF PWB (PL 10.8) Check the mechanical components (PL 10.4) of the lift mechanism for dirty or damaged gears, broken or out-of-place cables. If OK, replace the HCF PWB (PL 10.8).

• Code: 078-300
• Description: HCF Top Cover Interlock Open RAP The HCF Top Cover Interlock is open.
• Remedy: Execute Component Control [078-300 HCF Top Cover Interlock]. Open and close the Top Cover. The display changes. Y↓N→+24VDC is measured between PF/JF05-2 on the HCF PWB and GND. Y↓N→+24VDC is measured between PF/JF05-1 on the HCF PWB and GND. Y↓N→+24VDC is measured from PF/JF04 pins 1 and 2 on the HCF PWB to GND. Y↓N→Use BSD 1.7 - DC Power Distribution (options) and the IOT wirenets to troubleshoot the 24 VDC circuit. Replace the HCF PWB (PL 10.8). Check the wires between PF/JF05-1 on the HCF PWB and FS001 on the HCF Top Cover Interlock Switch, and between FS002 on the HCF Top Cover Interlock Switch and PF/JF05-2 on the HCF PWB for an open wire or poor contact. If the wires are good, replace the HCF Top Cover Interlock Switch (PL 10.7). Replace the HCF PWB (PL 10.8). The problem could be misalignment between the HCF Top Cover and the HCF Top Cover Interlock Switch. Check if the Switch/Cover is improperly installed and if the actuator is broken or bent. If the check is good, replace the following in sequence: • HCF PWB (PL 10.8) • MCU PWB (PL 18.2)