Symptoms For Other Operations - Epson TM-U220 Series Service Manual

Confidential

Symptoms for other operations

Parts do not move smoothly
Cannot open and close he ribbon cover smoothly.
Table 3-27 Opening and closing he ribbon cover is not smooth
Probable part/probable cause
Ribbon cover (109)
Cannot open and close the roll paper cover assembly smoothly.
Table 3-28 Opening and closing the roll paper cover assembly is not smooth
Probable part/probable cause
Frame rotation spacer (1050)
Rotation springs
Platen release spring (1056)
Hook spring C (1092)
The case is dirty.
Use a dry cloth or one lightly moistened with water to clean case. Be sure to disconnect the
power cord from the wall outlet before doing this.
Avoid using alcohol, benzene, thinner, trichloroethylene, or ketone-based substances to remove
dirt or foreign matter from the printer, because these substances can affect or damage plastic and
rubber parts.
3-20 Troubleshooting
Checkpoints
Confirm the condition of 2 projections on
the cover. Make sure neither broken.
Checkpoints
Confirm that the spacer is fixed. Make
sure it is located in the correct position.
Confirm spring attachment. Make sure
they are located in the correct positions.
Confirm spring attachment. Make sure it is
located in the correct position.
Confirm spring attachment. Make sure it is
located in the correct position.
Action to correct the problem
Replace the ribbon cover (109).
Completed if the cover opens and
closes smoothly.
Action to correct the problem
Confirm that the frame rotation
spacer is attached correctly.
Completed if cover opens and
closes.
Confirm that rotation spring L (1007)
and rotation spring R (1006) are
attached correctly. Completed if
cover opens and closes.
Confirm that the platen release
spring (1056) is attached correctly.
Completed if cover opens and
closes.
Confirm that hook spring C (1092) is
attached correctly. Completed if
cover opens and closes.
Rev.A