Citizen CT-S4500 User Manual page 23

11. Paper partition position adjustment button
With this button pushed, move the paper partition to the left or right.
12. Paper width scale
13. Paper near-end (PNE) sensor
Detects when the paper is near the end of the roll.
14. Paper near end sensor selector lever
Adjust the position of the sensor to determine when it detects the end of the paper
is near.
15. Paper end (PE) sensor
Detects when there is no paper. Printing stops when this sensor detects there is no
paper.
16. Media shaft mounting groove
When using a media shaft, attach it to this section.
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