Citizen CT-S801 User Manual page 20

Paper thickness selection lever
Use this lever to select regular or thick paper according to the thickness of the
paper being loaded.
Paper damper
Assists paper feed.
The components in the figure below are used in label-printing models and black
mark models.
Paper damper stopper
Paper damper stopper
Used to lock the paper damper.
Black mark sensor
Detects black marks on black mark paper.
The sensor position is either M1 or M2, depending on the model
classification.
Label sensor
Measures the length of label paper.
Label sensor
Black mark sensor (M1)
Label sensor
Black mark sensor (M2)
Refer to 1.3 Model Classification
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