Service manual

EPSON Stylus COLOR 480 Revision B
Troubleshooting Unit Level Troubleshooting 58
Table 3-11. Paper out error indication on STM3
Paper out error indication on STM3
Step
No.
Detail phenomenon Check point Remedy
4
When the print data is
sent to the printer, ASF
LD roller continue to
load the paper even if
the first paper is loaded
to the PF roller and the
paper is ejected while
the ASF hopper is
flapping.
1. Check if the tip of the
Change lever has any
damage.
2. Check if the
Compression spring
0.98 comes off from
the Change lever
If it is no problem,
proceed the next step.
1. Replace the Change
lever with new one.
2. Set the Compression
spring 0.98 in the
Change lever.
5
When the printer is
turned on, ASF hopper
dose not operate at all
in the power on
sequence
1. Check if the PF motor
connector is connected
to the CN3.
2. Check if the PF motor
coil resistance is about
7ohm by using tester
Refer to Table 3-1.
1. Connect the PF motor
connector to the CN3 on
the Main board.
2. Replace the PF motor
with new one.
3. If the problem is not
solved, replace the Main
board with new one.
Change lever
comp. spring 0.98
Table 3-12. Paper jam error indication on STM3
Paper Jam error indication on STM3
Step
No.
Detail phenomenon Check point Remedy
1
Paper is not ejected
completely and
jammed around the
Paper eject frame.
• Check if the star wheel
assembly is assembled
in the Paper eject
frame.
If it is no problem,
proceed the next step
• Remove the jammed
paper and assemble the
Star wheel assembly in
the Paper eject frame
completely.
If the hook portion of the
Star wheel assembly is
broken, replace the Star
wheel assembly with
new one.
2 Ditto
• Check if the Paper
eject roller is rotating
correctly.
If it is no problem,
proceed the next step
• Set the tip of the Spur
gear 15 to the protrusion
of the Pump unit and
assemble it correctly.
Star wheel assy
Spur gear 15
Paper eject roller