Canon GP405 Service Handbook page 34

CHAPTER 2 STANDARDS AND ADJUSTMENTS
4 Storing the Multifeeder Paper Width Basic Value
Execute this mode if you have replaced the multifeeder paper width detecting volume.
Be sure to try A4R, A6R, and A4 in the order indicated.
Execution
1) Replace the paper width detecting VR.
2) Start service mode.
asterisk key -> '2' and '8' at the same time -> asterisk key
3) Select COPIER>FUNCTION>CST, and highlight <A4R>.
4) Place A4R paper in the multifeeder, and adjust the side guide to the paper width.
5) Press the OK key.
6) Repeat steps 3) through 5) for A6R and A4 as in A4R.
7) Press the Reset key to end service mode; then, turn off and then on the main power switch.
2-24
Display I/O Adjust
< CST >
MF-A4R
MF-A6R
MF-A4
Figure 2-33
A4
A4R
A6R
A6R
(105mm)
Figure 2-34
Function Option Test
< 1/1 > < READY >
OK
+/-
A4R A4
(210mm) (297mm)
Paper width
Counter