CITIZEN PPU-231 - Manual (Page 24)

PPU-231 User’s Manual
11 CITIZEN
3.2 Optional PHU (Paper Holding Unit)
(11) PNE (Paper Near End) sensor
Detects that the paper is running out.
(12) PNE sensor position adjust screw
Use this screw to adjust the paper remaining amount until paper near end sensor is activated.
(13) Paper roller
Holds the paper roll.
(Printer side)
(12) PNE Sensor Position
Adjust Screw
(13) Paper Roller (11) PNE Sensor