MUTOH ValueJet 1638 - Page 6

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Step 5: Move the print head manually so that you have a clear view on the print head.
Step 6: Use a penlight, etc. to check if any foreign substances, such as dust or ink are attached
to the following places.
No. Name
1 Print head section
2
Circumference of the print head
No. Name
1 Around the print head
2
Head guide
3 Nozzle plate
4 Dust, ink clots, etc.