Oki IP-6620 Maintenance Manual page 384

11.
Turn the tube joint counter-clockwise,
and pull the ink tube upward to
disconnect it.
Note
Before removing the ink tube, place a KIM
towel or equivalent wipes under the print
head, as ink may dros from the tube.
12.
Install the tube supplied with the new
print head to the old print head.
13.
Remove the four screws securing the
print head.
14.
Remove the old print head.
Note
Set the cap as soon as possible after
disconnecting the joint of the old print head.
The ink may leak if the print head stays
uncapped for a long time.
When returning a defective print head to OKI
Data Infotech, to prevent the nozzles from
drying set the protector to the nozzle surface,
and wrap the print head with a polyethylene
sheet.
Chapter 6 Parts Replacement (Disassembly/Reassembly)
Polyethylene sheet
OKI Data Infotech Corporation CONFIDENTIAL
New print head
Tube
Old print head
Protector Protector
Tube
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