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Toner Not Installed

Toner cartridge is not installed — Cartridge loose or missing

Samsung · Laser Printers

What does Toner Not Installed mean?

The toner cartridge is either missing from its slot or not properly connected, specifically the CRUM (Customer Replaceable Unit Monitor) chip connector may be loose.

Common Causes

  • Toner cartridge not fully inserted.
  • CRUM chip in the cartridge not properly connected to the printer.

Repair Steps & Checklist

Click steps to track your progress.

  1. 1

    Ensure the toner cartridge is fully inserted into its designated slot until it clicks.

  2. 2

    Check the connection between the CRUM connector on the toner cartridge and the printer.

  3. 3

    Remove and reinstall the toner cartridge firmly.

Browse all codes in this manual (57)
Verified technical data. Last updated: April 2026

Related Faults

Abnormal PrintingAbnormal printing — Strange characters or no outputAbnormal noise (scanner)Abnormal noise — Scanner making unusual soundsCover openCover open — Printer indicates a cover is not closed
Source: Samsung Laser Printers
Open Manual (Page 113)Search more codes in this manual