
Troubleshooting
6-8
SF150T
6-5 No Copy Mode Operation
Start
TPH Test O.K ?
CIS Test O.K ?
Is Memory Clear ?
Reload Document
Check U7-55
"H"
Check P1-10
"L"
Check +24 V
P1-8, 9 ?
Replace Main PBA
P2-4, 6, 8, 10
TPH strobe
Replace U7
Replace U5
See Section 6-2
Replace U7
P2-7, 11, 12
Replace TPH
Restart
Restart
Replace U5
Replace U7
Replace Main PBA
O.K ?
O.K ?
B
Y
Y
Y
Y
Y
Y
Y
Y
N
N
N
N
N
N
N
N
N
N
Y
Y