How to Fix 077-123 Error Code for Xerox VersaLink C7020 C7025 C7030 C7000 Printer?

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077-123 Registration Sensor Jam (Duplex) RAP

BSD-ON: BSD 8.5 Registration
BSD-ON: BSD 10.7 Duplex Transport

077-123 Paper does not actuate the registration sensor in the specified time after the registration clutch in energized in duplex mode.

Initial Actions

Check the condition of the paper in all trays. Refer to GP 15 Paper and Media Size Specifications.


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 procedures that follow as necessary:

GP 6 How to Check a Motor.
GP 7 How to Check a Sensor.
GP 8 How to Check a Solenoid or Clutch.

Perform the steps that follow:

1. Check for obstructions in the paper path.
2. Check the exit 2 roll and nip rolls, PL 10.22 for foreign substances or wear. Clean or install new components as necessary.
3. Check the duplex rolls and nip rolls, PL 80.50 for foreign substances or wear. Clean or install new components as necessary.
4. Enter dC330, code 077-104. Check the registration sensor, PL 80.55 Item 4.
5. Enter dC330, code 077-003. Check the duplex clutch, PL 80.50 Item 28.
6. Enter dC330, code 042-001. Check the sub motor, PL 40.10 Item 11.
7. Enter dC330, code 077-014. Check the exit 2 motor, PL 10.21 Item 4.
8. Check the duplex drive gears and belts, PL 80.50 for wear or damage.
9. Check the drive assembly, PL 40.10 Item 1 for wear or damage.
10. If the fault persists, install new components as necessary:

• Drive PWB, PL 1.10 Item 3.
• ESS PWB, PL 3.10 Item 6.

**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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