How to Fix 078-301 Error Code for Xerox VersaLink C7020 C7025 C7030 C7000 Printer?

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078-301 HCF Docking interlock Open RAP

BSD-ON: BSD 1.11 DC Power Distribution - HCF

078-301 HCF1 side out switch open. The HCF and the IOT were undocked.

Initial Actions

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.

• Check that the HCF and the IOT are correctly docked.
• Switch off, then switch on the machine, GP 10.

Procedure

Refer to the procedure that follows as necessary:

GP 9 How to Check a Switch.

1. Enter dC330 code 078-301. Dock then undock the HCF to actuate the HCF1 side out switch. The display changes. If YES, go to 7. If NO, go to 2.

2. Undock the HCF. Actuate the HCF1 side out switch, PL 70.60 Item 8. The display changes. If YES, go to 6. If NO, go to 3.

3. Measure the voltage between JF08 pin 2 on the HCF PWB and ground. The voltage drops to less than +1VDC when the switch is actuated. If YES, go to 5. If NO, go to 4.

4. Check the wiring between:

• JF08 pin 1 on the HCF PWB and FS003 on the HCF1 side out switch.
• JF08 pin 2 on the HCF PWB and FS004 on the HCF1 side out switch.

If the wiring is good, install a new HCF1 side out switch, PL 70.60 Item 8.

5. Install a new HCF PWB, PL 70.60 Item 9.

6. Check the alignment of the HCF docking base and the IOT.

7. The fault may be intermittent. Check HCF1 side out switch wiring. If the fault persists, install new components as necessary:

• HCF1 side out switch, PL 70.60 Item 8.
• HCF PWB, PL 70.60 Item 9.

**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

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