YQE8-J0092E
40
Check
Item
Probable Cause
Corrective Action
A
Gear of DC Motor (Thermal Head
Up/Down) does not have adequate
grease.
If the DC Motor Gear does not have adequate grease, apply
some grease to the gear.
(Refer to Section 2.7 of this document)
B
Cam for Thermal Head contact does
not have adequate grease.
If the cam for Thermal Head contact does not have adequate
grease, apply some grease to the cam.
(Refer to Section 2.7 of this document)
C
Sticking is occurring due to Thermal
head voltage setting failure.
Use digital voltmeter to verify that each DC output value is
correct. If it is not correct, adjust the DC output on the DC
Power Supply. (Refer to Section 3.1 of this document)
If the value is still incorrect, replace the DC Power Supply
4
.
D
Defective DC Motor ASSY (Ribbon
Winding)
Replace DC Motor ASSY (Ribbon Winding)
6
and if it
works, the original part is defective.
E
Gear of DC Motor ASSY (Ribbon
Winding) does not have adequate
grease.
If the DC Motor Gear does not have adequate grease, apply
some grease to the gear.
(Refer to Section 2.7 of this document)
F
Defective Main Motor (Paper Feed)
If Main Motor (Paper Feed) works abnormally, the Main
Motor may be defective. Repairing at manufacturer is
required.
G
Lack of Tension on Timing Belt
Adjust the tension of timing belt, referring to Section 3.2 of
this document.
If there is defective, replace
Timing Belt (Feed Roller Drive) 18 ,
Timing Belt (Feed Roller Drive) 19 or
Timing Belt (Roll Paper Drive) 20 .
H
Defective PCB HSSV7-CONT-F
ASSY.
Replace PCB HSSV7-CONT-F ASSY
1
and if it works,
the original part is defective.
I
Foreign Object on Paper Path.
Verify that there are no foreign objects in the paper path.
J
Defective Paper Cutter Unit
Replace Paper Cutter Unit 10 and if it works, the original
part is defective.
K
Cable contact to the rotating section of
cooling fans.
Verify that there is no contact of the cable to thermal head
cooling fan or DC Power Supply cooling fan. If there is
contact, verify whether there is damage. If there is no
damage, tie the cable in a bundle so as not to contact thermal
head cooling fan or DC Power Supply cooling fan. If there
is damage, repairing at manufacturer is required.