YQE8-J0092E
37
Check
Item
Probable Cause
Corrective Action
A
Thermal head power output is
defective.
Use digital voltmeter to verify the output value is correct. If
it is abnormal, adjust the DC output on the DC Power
Supply. (Refer to Section 3.1 of this document)
If the value is incorrect even after this adjustment, replace the
DC Power Supply
４
.
B
Defective Thermal Head ASSY, its
connector, or cable disconnection.
Verify the connection between thermal head connector and
PCB HSSV7-CONT-F ASSY (CN3-CN22) is properly
connected. If it is abnormal, repairing at manufacturer is
required.
Replace Thermal Head ASSY
５
and if it works, the
original part is defective.
C
Defective HSSV7-CONT-F ASSY.
Replace PCB HSSV7-CONT-F ASSY
１
and if it works,
the original part is defective.
D
Paper Feed Main Motor is defective.
If Paper Feed Main Motor does not work, the Main Motor
may be defective.
Repairing at manufacturer is required.
E
Platen is dirty.
Use a clear cloth soaked with isopropyl alcohol to clean the
platen. (Refer to Section 2.6)
F
Pinch Roller is dirty.
Use a dry clear cloth soaked to clean the Pinch Roller.
G
Thermal head power setting is bad.
Each thermal head has different resistance value for the
heating element. Therefore voltage setting for each device is
different.
Make sure that voltage setting matches the value on the
nameplate. Otherwise set the voltage of the Power Supply
Unit. (Refer to Section 3.1 of this document)
H
Incorrect Density Setting of Thermal
Head.
Each thermal head has different density value. Therefore
adjusting print density for each thermal head.
Make sure that print density value is as same as designated.
(Refer to Section 3.3 of this document)
I
Defective Electromagnetic Clutch
(Ribbon Brake), its connector, or cable
disconnection.
Verify that the cable between Electromagnetic Clutch
(Ribbon Brake) and PCB HSSV7-CONT-F ASSY (CN12-
CN66) is properly connected.
Replace Ribbon Brake 2 ASSY 12 and if it works, the
original part is defective.
