EPSON Stylus Pro 9000 Revision B
Disassembly & Assembly Disassembly Flow 85
REPLACING THE PRINTHEADS
1. Turn the ink valve knob located on the sides of the I/H Holders to the
“Close” position, or lift up the I/C Holder lever. Both operations perform the
same function of shutting off the flow of ink through the ink tubes.
2. Open the Front Cover.
3. Remove the Maintenance Cover as described in “Maintenance Cover
Removal” on page 73.
4.
Optional
: Remove the H Top Cover as described in “H Top Cover
Removal” on page 74. This is an extra step during removal and re-
installation, but it provides more light and room.
5. Manually release the Carriage Lock and move the carriage away from the
capping position.
Figure 4-19. Carriage Lock Release
CAUTION
The printer uses two printheads, B Head and C Head, and
although they are similar you need to make sure you do no
mix the heads. One is for dark inks and the other is for light
inks. Therefore make sure you prepare and install the
correct replacement head.
n B head
F055040: “Printhead, IJ192-OAD”
n C head
F055050: “Printhead, IJ192- OAE”
ADJUSTMENT
REQUIRED
When replacing the printheads, the following adjustment
procedures are required.
n Self-diagnostic function/adjustment
n Head unit counter reset
n Carriage cover height check
Carriage lock release
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