8. Jam display
Field Service Ver. 2.0 Jan. 2008
40
SD-505
T
roubleshooting
8.3.4
Staple unit 1 misfeed/Staple unit 2 misfeed
A. Detection timing
B. Action
Type
Description
Staple unit misfeed
detection
The staple home position sensor in the staple unit is not turned ON even
after the set period of time has elapsed after the staple motor rotates for-
ward, and then the staple motor rotates backward, and the staple home
position sensor in the staple unit is turned ON within the set period of time.
Relevant electrical parts
Staple unit 1
Staple unit 2
SD control board (SDCB)
Step
Action
WIRING DIAGRAM
Control signal
Location
(Electrical
component)
1
Initial check items
—
—
2
Drive coupling section check
—
—
3
Sensor check
—
—
4
Change staple unit 1
—
—
5
Change staple unit 2
—
—
6
Change SDCB
—
—
Service Manual Y108482-2