Epson Stylus PRO 7500 Service Manual page 118

EPSON Stylus Pro 7500
4.2.3.3 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 not 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"
(damper order = B>C>M)
n
C head
F055050: "Printhead, IJ192-OAE"
(damper order = LC>LM>Y)
The printheads are the same for the EPSON Stylus Pro 9500 and
EPSON Stylus Pro 7500.
Before replacing the printheads you will need to drain the ink as
described in the Clean Head section of "Adjustment Items" on
page 172.
After replacing the printheads, you will need to perform an initial ink
charge as described in "Cleaning Menu" on page 211.
When replacing the printheads, the following adjustment procedures
are required.
n
Self-diagnostic function/adjustment. Refer to Page172
n
Head unit counter reset. Refer to Page216.
1. Drain the ink as described in the Clean Head section of "Adjustment Menu" on
page 191.
2. Remove the R Side Cover as described in "R Side Cover Removal" on page 103.
3. Press down the cutter to release the carriage lock, and move the carriage away from the
home position.
4. Remove the two screws (CP(W):M3x6) securing the carriage cover and remove the
carriage cover.
Disassembly & Assembly
5. Remove one screw (CP(W) M3x6) securing the damper holder, unhook the ink tubes
from the damper holder, and then remove the damper holder.
carrige
lock
Figure 4-36. Carriage Lock Release & Cover Removal
ink tube
Disassembly Flow
carriage cover
damper holder
Figure 4-37. Damper Holder
Revision A
screws
(CP(W)M3x6)
ink tube
screws
(CP(W)M3x6)
118