Canon GP160DF Service Handbook page 50

CHAPTER 3 ARRANGEMENT AND FUNCTIONS OF THE ELECTRICAL PARTS
2. DC controller PCB/ Sensor PCB
DC controller PCB
VR402: For factory adjustment
Sensor PCB
VR401 : VR for image leading edge margin adjustment
SW401 : Push switch for test print output
3-14
VR402
J311
J302
J309
J304
JH401
JH402 JH406
VR401
J310
JH407
Figure 3-7
J401
SW401
Figure 3-8
J301 J305
J308
J307
J306
J303
T406
T403