Epson Stylus Photo 950, Service Manual

Page: 63 / 191

EPSON Stylus PHOTO 950 Revision A
TROUBLESHOOTING Overview 63
16 During paper back
(ASF reverse drive)
operation, does the
paper back lever not
operate because it
falls off, and does a
double feed error
always appear, or do
paper jams always
occur during paper
feeding?
Please Note that
"Paper back lever" is
located on backside of
"Silent CAM". The paper back lever is inserted onto the ribbed shaft on the
ASF right frame as shown in the photograph. Because of this,
if the rib becomes broken, the paper back lever may fall off
during operation. If the rib on the paper back lever shaft
becomes broken, replace the ASF right frame or replace the
ASF unit.
17 If the end of the paper back lever itself is broken, or if the
other rib on the underside of the paper back lever (not shown
in the photograph) is broken and the two paper return levers
(back flaps) inside the ASF unit cannot be operated, replace
the paper back lever.
18 The spring that
applies tension to the
paper return lever
inside the ASF has
come off from its
normal position, and
so no tension is being
applied. The photograph below shows the normal setting position for
the paper return lever tension spring.
Table 3-6. Countermeasures when a paper out error occurs
Step Check Point Remedy
Rib
Shaft
Paper Back Lever
Paper Return Lever
Tension Spring
19 The shaft that drives
the ASF hopper is
secured in a total of
four places. Has it
come loose in one of
these places, so that
the incorrect timing or
incorrect operation is
occurring?
20 Problem with PE
sensor unit. Operate the actuator manually and check that the voltage at
connector CN11 (yellow: 3-pin) on the control circuit board
changes as follows.
• Paper
: LOW
• No paper : HIGH
Table 3-6. Countermeasures when a paper out error occurs
Step Check Point Remedy
Check Point 1
Check Point 2
Check Point 3
2-pin
(GND)
1-pin
(PE)