CL4/6NX Plus- Bad Print Quality – SATO Help Center

Problem/Question

Printouts are too light, too dark, or have streaks.

CL4NX Plus, CL6NX Plus

Cleaning Using the Cleaning Kit

View the video here (it has no audio).

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The cleaning procedure using the cleaning kit is as follows:

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Never use organic solvents, such as thinner and benzine to clean the product.

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For details on the cleaning kit, refer to the manual attached to the cleaning kit.

View the video below for the procedure.

CL4NX Plus

CL6NX Plus

Make sure that the product is powered off, and disconnect the power cord from the AC outlet.

Open the top cover.

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Open the top cover fully to prevent accidental drop of the cover.

Push the head lock lever (1) towards the rear to unlock the print head.

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The print head and its surroundings are hot after printing. Be careful not to get burned.

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Touching the edge of the print head with your bare hand could cause injury.

Remove the media and ribbon if they are already loaded.

Clean the dirt on the print head (2), plate (3), ribbon roller (4) and platen roller (5) using a cotton cloth dabbed with cleaning liquid.

Tilt the sensor guide lock (6) down and pull out the media sensor guide (7).

Clean the bottom of the media sensor guide using the cotton cloth dabbed with cleaning liquid.

Clean the media sensor (8) using the cotton cloth dabbed with cleaning liquid.

Return the media sensor guide to its original position and tilt the sensor guide lock up to the locked position.

10.

While holding the print head assembly with your hand, clean the shaft (9) using the cotton cloth dabbed with cleaning liquid.

After that, perform a test print with the product.

Check the print darkness and print speed. Set the print darkness and print speed correctly.

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