Canon NP6621 Service Handbook page 45

Notation
Name
(+) probe of meter
Service mode
Checks; normal if as
indicated.
Display
Meter measurements
Notation
Name
(+) probe of meter
Service mode
Checks; normal if as
indicated.
Display
Meter measurements
PS5cu
Cassette right door open/closed
sensor (CRDOP*)
J308-A6
No. 215 1-c
Open the right door while in
standby.
When the right When the right
door is open door is not open
0
—
Q651-5
Cassette 5 size sensor 1 (C5SZ1)
J308-A10
No. 219 1-a
Slide out the cassette while in
standby, and operate the detection
lever with a finger. (paper selection
for cassette 5)
When the lever When the lever
is operated is not operated
0
—
STANDARDS AND ADJUSTMENTS
1
—
Cassette 5 size sensor 2 (C5SZ2)
Slide out the cassette while in
standby, and operate the detection
lever with a finger. (paper selection
for cassette 5)
When the lever
is operated
1
0
—
—
Q652-5
J308-A11
No. 219 1-b
When the lever
is not operated
1
—
2–31