Epson Stylus Photo 720 Service Manual page 74

EPSON Stylus Photo 720 / EPSON Stylus Photo EX3
Be sure that the Head Grounding Plate is installed to the
n
C H E C K
carriage correctly. (There are 2 position marking pins on the
P O I N T
carriage.)
After installing the printhead to the carriage, make sure that
n
the position marking pin at the carriage side is correctly located
into the cutoff of the printhead.
This protrusion
must be in the U
groove of the
printhead.
P o s i t i o n n i n g P i n
Pinthead
Top View
Figure 4-9. Printhead Installation
Disassembly and Assembly
This part should
T h i s s h o u l d c o n t a c t
contact with the
t h e C R b u s h
CR Bushing.
Head
Grounding
Plate
These protrusions of CR must
be in the holes of the head
P o s i t i o n n i n g P i n
grounding plate.
CR Assembly
C R A s s e m b l y
P r i n t h e a d U n i t
Printhead
Printhead Back View
Disassembly
Install a new cartridge before sending back the printer to the
n
C H E C K
user, since the ink cartridge once taken out can not be used
P O I N T
again.
Installation of I/C must be carried out by I/C replacement
n
sequence. Otherwise, ink may not be ejected properly.
When you return the printer to the user, pack the printer with
n
ink cartridges installed.
When you return the printer to the user, make sure CR Lock
n
Lever is set properly and then pack the printer.
A D J U S T M E N T
Perform the following adjustment after replacing the
R E Q U I R E D
printhead in the order below;
1. Ink Initial Charge (See "Initial Ink Charge" on page 111)
2. Head ID Input (See "Head Voltage ID Input" on page 101)
3. Head Angular Adjustment (See "Head Angular Adjustment" on
page 103)
Revision A
74