Xerox 093-xxx — Toner cartridge chip (CRUM) errors

What this error means

The cartridge's chip data doesn't match what the machine expects: non-genuine or wrong-region cartridges, an unseated cartridge, or dirty chip contacts. The color pattern: 926/937/938/939/940 map to specific colors.

Symptoms

• Error right after a toner change
• Compatible/refilled cartridge in use

Try this first (safe DIY steps)

1. Remove and firmly reseat the cartridge; check the chip contacts are clean
2. Verify the exact part number for your machine's region
3. The decisive test: a genuine Xerox cartridge

Safety: power off before any physical intervention. Never bypass covers or interlocks — fuser areas run hot enough to burn.

When to call a technician

If genuine cartridges also fail — contact assembly service.