How to Fix 021-502 021-504 Error Code for Xerox VersaLink C7020 C7025 C7030 C7000 Printer?

021-502, 503, 504 Couldn’t Resolve Proxy Name RAP

021-502 Proxy server address resolution error.
021-503 Server address resolution error.
021-504 Server connection error.

Procedure

Advise the customer to:

1. Check the connection of the LAN cable.
2. Check the DNS server address settings.
3. Check the default gateway settings.
4. Check the subnet mask settings.

**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