Canon NP6412 Service Manual page 154

CHAPTER 5 PICK-UP/FEEDING SYSTEM
2. Absence of Paper in the Cassette Pickup Assembly
When re-pickup operation is executed (from the cassette), the absence of paper will be identi-
fied if copy paper does not reach the vertical path roller paper sensor within a specific period of
time. In response, the machine will stop the main motor in about 1.5 sec, and indicate the Add
Paper message.
Cassette pickup solenoid (SL5)
Jam check
Vertical path roller
paper sensor (PS4)
Main motor (M1)
3. Vertical Path Stationary Jam
If copy paper fails to move past the vertical path roller paper sensor within a specific period of
time because of faulty feeding, the machine will identify the condition as a vertical path stationary
jam, stop the operation, and flash the Jam indicator.
Cassette pickup solenoid (SL5)
Jam check
Vertical path roller
paper sensor (PS4)
Main motor (M1)
5-10
COPYRIGHT © 1999 CANON INC.
Copy Start key
ON
STBY INTR SCFW
1.2sec
Normal
Figure 5-113
SCRV SCFW
0.5sec
Normal
Figure 5-114
CANON NP6512/6612/7120/7130/7130F REV.0 AUG. 1999 PRINTED IN JAPAN (IMPRIME AU JAPON)
P indication
Re-pickup
1.2sec 1.2sec
No paper
1.5sec
indication
SCRV
0.5sec
Jam
1.5sec