SATO 9001226(A) Service Manual page 132

Section 5: Troubleshooting
5.2 TROUBLESHOOTING FLOWCHART (Cont'd)
5.2.3 Print Problems (Cont'd)
Category
Symptoms
Abnormal
Print is too
print
Print is too
One side of
print is lighter
than the other
Page 5-12
Causes
dark
Is print
darkness set
light
properly?
Is thermal
head position
OK?
Is thermal
head clean?
Is data
printed evenly
balanced across
the paper?
Remedy
Adjust print
darkness
Refer to 6.12
Adjusting Print
Darkness
NO
Adjust print
darkness
Refer to 6.12
Adjusting Print
YES
Darkness
NO
Adjust head
position
Refer to 6.16
Adjusting Print
YES
Head Position
NO
Clean the
thermal head
YES
NO
YES
Adjust thermal
head balance
Refer to 6.16
Adjusting Print
Head Position
Maintenance
Replace
thermal head
Refer to 7.2
Replacing Print
Head
NO
Replace Main
PCB (CONT
board)
Refer to 7.11
Replacing Main
(CONT) PCB and
Calendar IC
Replace platen
roller
Refer to 7.3
Replacing Platen
Roller
TG3 Series Service Manual