How to Fix 078-300 Error Code for Xerox VersaLink C7020 C7025 C7030 C7000 Printer?
Posted by Xwk Tech on
078-300 HCF Top Cover Interlock Open RAP
BSD-ON: BSD 1.11 DC Power Distribution - HCF
078-300 The HCF top cover interlock is open.
Procedure
WARNING: Ensure that the electricity to the machine is switched off while performing tasks that do not need electricity. Refer to GP 10. Disconnect the power cord. Electricity can cause death or injury. Moving parts can cause injury.
Refer to the procedure that follows as necessary:
• GP 9 How to Check a Switch.
1. Enter dC330 code 078-300. Open then close the top cover, PL 70.55 Item 7 to actuate the HCF top cover interlock switch. The display changes. If YES, go to 9. If NO, go to 2.
2. Measure the voltage between JF05 pin 2 on the HCF PWB and ground. +24V is measured. If YES, go to 8. If NO, go to 3.
3. Measure the voltage between JF05 pin 1 on the HCF PWB and ground. +24V is measured. If YES, go to 7. If NO, go to 4.
4. Measure the voltage between JF04 pin 1 and 2 on the HCF PWB and ground. +24VDC is measured. If YES, go to 6. If NO, go to 5.
5. Check the +24VDC circuit.
6. Install a new HCF PWB, PL 70.60 Item 9.
7. Check the items that follow: wiring:
• JF05 pin 1 on the HCF PWB and FS001 on the HCF top cover interlock switch.
• JF05 pin 2 on the HCF PWB and FS002 on the HCF top cover interlock switch.
If the wiring is good, install a new HCF top cover interlock switch, PL 70.55 Item 26.
8. Install a new HCF PWB, PL 70.60 Item 9.
9. The fault could be caused by misalignment of the HCF top cover interlock switch. Ensure the switch and HCF top cover are correctly installed. Check if the actuator is damaged, install new components as necessary, PL 70.55.
If the fault persists, install a new components as necessary:
• HCF PWB, PL 70.60 Item 9.
• Drive PWB, PL PL 1.10 Item 3.
**This RAP is from Xerox Service Manual. All brand names and trademarks are their respective owner's property.**
You may be also interested in below toner and drum chip (CRUM) for Xerox VersaLink C7020, C7025, C7030, C7000.
Toner Chip (For North America and West Europe Region):
• 106R03741 106R03744 106R03743 106R03742
• 106R03757 106R03760 106R03759 106R03758
• 106R03737 106R03740 106R03739 106R03738
Toner Chip (For South America and East Europe Region):
• 106R03749 106R03752 106R03751 106R03750
• 106R03745 106R03748 106R03747 106R03746
• 106R03765 106R03768 106R03767 106R03766
Toner Chip (For Metered Machine):
• 106R03733 106R03736 106R03735 106R03734
Drum Chip:
• 113R00780 113R00782
BSD-ON: BSD 1.11 DC Power Distribution - HCF
078-300 The HCF top cover interlock is open.
Procedure
WARNING: Ensure that the electricity to the machine is switched off while performing tasks that do not need electricity. Refer to GP 10. Disconnect the power cord. Electricity can cause death or injury. Moving parts can cause injury.
Refer to the procedure that follows as necessary:
• GP 9 How to Check a Switch.
1. Enter dC330 code 078-300. Open then close the top cover, PL 70.55 Item 7 to actuate the HCF top cover interlock switch. The display changes. If YES, go to 9. If NO, go to 2.
2. Measure the voltage between JF05 pin 2 on the HCF PWB and ground. +24V is measured. If YES, go to 8. If NO, go to 3.
3. Measure the voltage between JF05 pin 1 on the HCF PWB and ground. +24V is measured. If YES, go to 7. If NO, go to 4.
4. Measure the voltage between JF04 pin 1 and 2 on the HCF PWB and ground. +24VDC is measured. If YES, go to 6. If NO, go to 5.
5. Check the +24VDC circuit.
6. Install a new HCF PWB, PL 70.60 Item 9.
7. Check the items that follow: wiring:
• JF05 pin 1 on the HCF PWB and FS001 on the HCF top cover interlock switch.
• JF05 pin 2 on the HCF PWB and FS002 on the HCF top cover interlock switch.
If the wiring is good, install a new HCF top cover interlock switch, PL 70.55 Item 26.
8. Install a new HCF PWB, PL 70.60 Item 9.
9. The fault could be caused by misalignment of the HCF top cover interlock switch. Ensure the switch and HCF top cover are correctly installed. Check if the actuator is damaged, install new components as necessary, PL 70.55.
If the fault persists, install a new components as necessary:
• HCF PWB, PL 70.60 Item 9.
• Drive PWB, PL PL 1.10 Item 3.
**This RAP is from Xerox Service Manual. All brand names and trademarks are their respective owner's property.**
You may be also interested in below toner and drum chip (CRUM) for Xerox VersaLink C7020, C7025, C7030, C7000.
Toner Chip (For North America and West Europe Region):
• 106R03741 106R03744 106R03743 106R03742
• 106R03757 106R03760 106R03759 106R03758
• 106R03737 106R03740 106R03739 106R03738
Toner Chip (For South America and East Europe Region):
• 106R03749 106R03752 106R03751 106R03750
• 106R03745 106R03748 106R03747 106R03746
• 106R03765 106R03768 106R03767 106R03766
Toner Chip (For Metered Machine):
• 106R03733 106R03736 106R03735 106R03734
Drum Chip:
• 113R00780 113R00782