> Clean the Sensors
> Clean the Tear Bar / Peel Bar
> Clean the Exterior / Interior
Clean the Sensors
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Turn off the printer.
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Open the Media Cover.
![Media Cover Media Cover](/g/b/img/faqend/faqp00001434_015/gb/en/2403370/g_001.gif)
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Push the Print Head Release Lever to open the Print Head.
![Print Head Release Lever Print Head Release Lever](/g/b/img/faqend/faqp00001434_015/gb/en/2403371/g_030.gif)
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Use compressed air or vacuum to clean the Black Mark Sensor and Gap Sensor.
![Black Mark Sensor and Gap Sensor Black Mark Sensor and Gap Sensor](/g/b/img/faqend/faqp00001434_015/gb/en/2403372/g_025.gif)
1. Black Mark Sensor
2. Gap Sensor
We recommend cleaning the sensors once per month.
Clean the Tear Bar / Peel Bar
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Turn off the printer.
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Open the Media Cover.
![Media Cover Media Cover](/g/b/img/faqend/faqp00001434_015/gb/en/2403373/g_001.gif)
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Wipe the Tear Bar and the Peel Bar with a lint-free cloth dipped in isopropyl alcohol or ethanol, as needed.
TJ-4420TN / TJ-4520TN
![Peel Bar Peel Bar](/g/b/img/faqend/faqp00001434_015/gb/en/2403376/g_026.gif)
1. Peel Bar
TJ-4422TN / TJ-4522TN
![Tear Bar Tear Bar](/g/b/img/faqend/faqp00001434_015/gb/en/2403378/g_033.gif)
1. Tear Bar
Clean the Exterior / Interior
Exterior: Wipe with a lint-free cloth dipped in water, as needed.
Interior: Use a brush or vacuum, as needed.