Color Inkjet Printer Service Manual

EPSON Stylus Photo R300/R310 Revision A
TROUBLESHOOTING Unit Level Troubleshooting 17
At operation
-
"PF Motor" and "Spur Gear, 37.242"
rotate properly, but "Holder, Shaft, LD
Roller" does not feed paper. (The drive
of "PF Motor" does not propagate to
"Holder, Shaft, LD Roller".)
Ink System
1. Check if "Compression Spring, 2.36" of "Lever, Change"
does not come off.
1. Replace "Ink System" with a new one.
"Holder, Shaft, LD Roller" is not set in
the ASF home position and paper is
always fed from "ASF Assy.".
Ink System
1. Check if the tip of "Lever, Change" is not damaged. 1. Replace "Ink System" with a new one.
"Holder, Shaft, LD Roller" does not feed
paper during the feeding operation. "PF
Motor" and "Spur Gear, 37.242" also
does not rotate at all.
PF Motor*
1. Check if "PC Connector Cable" is connected to CN9 on
"Main Board".
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. Connect "PF Motor Connector Cable" to CN9
on "Main Board".
2. Replace "PF Motor" with a new one.
3. Replace "PF Motor" with a new one.
At operation
-
"Holder, Shaft, LD Roller" rotates
properly, but paper is not fed.
Holder, Shaft
LD Roller
1. Check if the surface of "LD Roller" is contaminated with
paper dust.
1. Remove the dust by using a soft bruch or soft
cloth moistened with alcohol.
* If the problem is not solved, replace "LD
Roller" with a new one.
Table 1-6. Check Points for Paper Out Error to Each Phenomenon
Occurrence Timing
Position of CR
Phenomenon Detail
Faulty Part/
Part Name
Check Point Remedy
Lever, Change
Compression Spring, 2.36
LD Roller