Epson Stylus Photo R320 Service Manual page 18

EPSON Stylus Photo R320
Occurrence
Timing Phenomenon Detail
Position of CR
"PF Motor" does not work at all.
At power-on
Anywhere
Paper feeding operation is performed
normally, but paper is not sent into the
printer.
TROUBLESHOOTING
Table 1-7. Check Points for Paper Jam Error to Each Phenomenon
Faulty Part/
Part Name
1. Check if "PF Motor Connector Cable" is connected to
CN9 on "Main Board".
PF Motor 2. Check if the coil resistance of "PF Motor" is
approximately 3.0Ω with a tester. Refer to Table 1-1.
3. Check if "PF Motor Connector Cable" is damaged.
1. Check if "Roller, Retard Assy." operates properly while
feeding paper.
ASF Assy.
1. Check if "Torsion Spring, 0.22" is not unfastened from
"PE Sensor Lever".
PE Sensor
Torsion Spring, 0.22
2. Check if "PE Sensor Cable" is not unfastened.
3. Check if "PE Sensor Cable" is correctly mounted on
"Holder, Shaft, LD Roller".
4. Check if "PE Sensor Cable" is not damaged.
Unit Level Troubleshooting
Check Point
1. Connect "PF Motor Connector Cable" to CN9
2. Replace "PF Motor" with a new one.
3. Replace "PF Motor" with a new one.
1. Reassemble "Extension Spring, 0.45" located
1. Reassemble "Torsion Spring, 0.22"
2. Connect "PE Sensor" Connector to CN4 on
3. Remount "PE Sensor Cable" correctly.
4. Replace "PE Sensor" with a new one.
Revision B
Remedy
on "Main Board".
rear side of "Roller, Retard Assy.".
Extension
Spring, 0.45
"Main Board".
18