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Toner cartridge not installed

Toner cartridge not installed — Cartridge missing or loose

Samsung · Laser Printers

What does Toner cartridge not installed mean?

The printer detects that the toner cartridge is either missing or not properly seated in its slot. The CRUM (Customer Replaceable Unit Monitor) chip on the cartridge might not be making proper contact.

Common Causes

  • Toner cartridge not fully inserted into its slot
  • CRUM connector on the cartridge not making proper contact with the printer

Repair Steps & Checklist

Click steps to track your progress.

  1. 1

    Open the toner cartridge access door or cover.

  2. 2

    Carefully remove the toner cartridge and inspect it for any damage or misalignment.

  3. 3

    Reinsert the toner cartridge firmly into its slot until it clicks into place.

  4. 4

    Ensure the CRUM chip on the cartridge makes proper contact with the printer's internal connector.

  5. 5

    Close the access door and check if the message clears.

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