Table of Contents
Advertisement
2-2. Thermal Head
n
When this unit is conveyed to maintenance service due to white streaks, the failure is not caused by a
defective thermal head, but it may be caused by adhesion of dust. Perform cleaning and printing check
before replacing a thermal head.
Working fl ow
1. Thermal head cleaning
2. Printing of the test pattern (16STEP)
3. Replacement of the thermal head
4. Setting of the thermal head resistance value
5. Printing of the test pattern (16STEP)
6. Comparing the test pattern in step 2 and step 5
Blur or faint
stripe appears.
7. Position adjustment of
thermal head
8. Resetting of head print history
2-2 (E)
Symptom still appears.
Density differs.
7. Density adjustment
End
Symptom
is cleared.
End
No trouble
UP-CX2
Advertisement
Table of Contents
