Canon NP6621 Service Handbook page 93

Symbol Name
Photointerrupter
PS
Toner sensor
Thermistor
Volume
Thermal fuse
ARRANGEMENT AND FUNCTIONS OF THE ELECTRICAL PARTS
Notation
PS1 Scanner home position detection
PS2 Lens home position detection
PS3 Blank shutter home position detection
PS4 Paper in cassette 1 detection
PS5 Paper in multifeeder detection
PS6 Registration roller detection
PS7 Paper for separation detection
PS8 Paper for delivery detection
PS10 Right door open/closed detection
PS11 Copyboard cover open/closed detection
PS12 Paper at vertical path roller 2 detection
PS13 Paper in cassette 2 detection
PS14 Paper at duplexing unit outlet detection
PS15 Paper at duplexing unit inlet detection
PS16 Paper at vertical path roller detection
PS19 Duplexing unit horizontal registration roller detection
PS23 Original size detection 1
PS21 Original size detection 2
ATS Developing assembly toner sensor
TH1 Fixing heater thermal detection 1
TH2 Fixing heater thermal detection 2
VR1 Multifeeder paper width detection
FU1 Fixing heater overheating detection
Table 6-600
Description
6–3