Epson Stylus Pro 9500 Service Manual page 98

EPSON Stylus Pro 9500
4.2.3.2 Replacing the Printheads
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 (Dark system head)
F055040: "Printhead, IJ192-OAD"
n C Head (Light system head)
F055050: "Print Head, IJ192-OAE"
Compared to the B head, the above C head is a higher
precision head. Therefore, when banding claims occur,
it is recommended that this head be used to handle the
problem.
When replacing the printheads, the following adjustment
procedures are required.
n
Self-diagnostic Function / Adjustment (Adjust the
inclination of the left and right heads, adjust the right
head height, Adjust the Bi-D, Adjust the Gap.) page 167
n
Head unit counter reset. Refer to page 200
n
Carriage cover height check. Refer to page 208
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.(See 4.2.1.1)
4. Optional: Remove the H Top Cover.(See 4.2.1.1) 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.
6. Disconnect the flat cable running from the "CR Board Assembly" mounted
on top of the carriage from the affected print head.
7. Remove two screws (CB M3x6), and remove the carriage cover
Disassembly & Assembly
Figure 4-20. Carriage Lock Release
Figure 4-21. Carriage Cover Removal *with H Top removed
Disassembly Flow
Carriage lock release
.
Screw (CB M3x4)
Revision A
98