Printhead - Oki ML421 Maintenance Manual

3.3.1 Printhead

(1) Open the access over.
Pull up and rotate the head clamp 1 to unclamp the printhead 2 as shown fig. 3.3.1.
(2)
Disconnect the printhead 2 from PC connector 3.
(3)
(4) To install, follow the removal steps in the reverse order.
Notes on installation:
(1) Insert the printhead 2 into the PC connector 3 while pushing it against the carriage
frame 4.
(2) The head clamp 1 must surely be sandwiched between printhead 2 and carriage
frame 4 as shown Figure 3.3.2.
(3) Be sure to check the gap between platen and printhead (see 4).
(4) Be careful not to touch the print head while it is very hot.
(5) Make sure that there is not any dust or oil on the connector contact section A. If it
is found, wipe it off by alcohol.
1
2
Figure 3.3.1
42113901 Rev.2
4
2
A
1
3
Oki Data CONFIDENTIAL
2
1
Figure 3.3.2
4
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