Citizen Systems CT-S4000DC, CT-S4000L Periodic cleaning, Platen Sensor, Print thermal head

4.3 Periodic cleaning

If the print head or platen is dirty, clear printing is not available or fault may occur. If paper dust or the like is present on the sensor protection sheet, label paper or blackmark paper may not be detected correctly. Periodic cleaning in accordance with the following procedure is recommended.

1.Turn the printer power off.

2.Open the printer cover.

3.Wait several minutes. Wipe off any debris on the heating element of the head using a cotton swab soaked in ethyl alcohol.Just after printing, high temperature remains in the print (thermal) head. Be careful not to touch it by hand.

4.Moisten the tip of the cotton swab with water and wipe the dirt on the surface of the sensor protection sheet. Avoid using solvent such as alcohol. Use of it may result in smoky sensor protection sheet.

Platen

Sensor

Sensor Print (thermal) head

CAUTION!

■Do not touch the surface of the heating element of the print head by bare hand or metal.

■Wipe the dust off the surface of the platen periodically with a cotton swab moistened with ethyl alcohol. Especially, when full cutting is used for label paper, paper dust may adhere on the platen depending on the property of liner sheet, roll paper diameter, environmental condition of using the printer, etc.

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