> For the complete documentation index, see [llms.txt](https://knowledge.illumina.com/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://knowledge.illumina.com/instrumentation/nextseq-1000-2000/instrumentation-nextseq-1000-2000-reference_material-list/000008334.md).
# Cleaning NextSeq 1000/2000 cartridge tray in case of reagent leak inside the instrument
Cleaning the reagent cartridge tray is usually only necessary if reagents have leaked onto the cartridge tray itself. The following steps have been taken from the [NextSeq 1000/2000 Product Documentation](https://support-docs.illumina.com/IN/NextSeq10002000/Content/IN/NextSeq2000_1000/PostRunTasks_sbs.htm) (Clean Cartridge Tray section):
1. Remove the cartridge from the instrument. Do not select cartridge load.
2. Put on a new pair of powder-free gloves and any additional protective wear.
3. Spray 10% bleach solution onto a cloth.
4. Wipe the cartridge tray using the cloth, and then immediately remove the bleach solution using a heavy duty wipe. The bleach may stain the cartridge tray if not removed immediately.
5. Spray 70% ethanol solution on the cartridge tray and immediately remove using a heavy duty wipe.
6. Set the cartridge tray back to load position.\
Picture adapted from [NextSeq 1000/2000 Product Documentation](https://support-docs.illumina.com/IN/NextSeq10002000/Content/IN/NextSeq2000_1000/InstrumentHardware_fNS.htm), Consumables Compartment section.
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| *For any feedback or questions regarding this article (Illumina Knowledge Article #8334), contact Illumina Technical Support* [*techsupport@illumina.com*](mailto:techsupport@illumina.com?subject=Question%2FFeedback%20Regarding%20Illumina%20Knowledge%20Article%20#000008334%20-%20Instrumentation%20\&body=Dear%20Illumina%20Technical%20Support,%0D%0A%0D%0A)*.* |
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