Epson Stylus Color 440, Service Manual

Page: 141 / 212

EPSON Stylus Color 440/640/740 Revision A
Chapter 5 Adjustment 141
5.2.2.4 Head Cleaning Operation
Different from the previous models, Stylus Color 440, 640, and 740
have no dummy cleaning sequence called CL3, which was performed to
prevent ink from being unnecessarily consumed when cleaning was
repeated without any printout. However, Stylus Color 440/640/740 is
alternatively equipped with the strongest cleaning sequence CL2
contained in this adjustment program. With this sequence, you can
forcibly solve the clogged nozzle problem caused by viscous ink.
1. Enter the main menu. (Refer to Section 5.2.2.2.)
2. Apply the Maintenance menu (Figure 5-12).
3. By using the Up/Down arrow key, select Head cleaning, and the
following screen appears.
Figure 5-14. Cleaning Menu
4. Press the Enter key. The printer enters the CL2 sequence. (It takes
60 seconds for the process to complete.)
C A U T I O N
If you can not recover the clogged nozzles despite you
performed CL2 operation, enter the Initial ink charge
sequence by referring to Section 5.2.2.3.
M S - D O S P r o m p t - S C 6 4 0
A u t o
M o d e s e l e c t i o n o f h e a d c l e a n i n g
B l a c k & C o l o r h e a d c l e a n i n g
< < P o w e r f u l c l e a n i n g ( C L 2 ) w i l l b e d o n e i n t h i s m o d e . > >
N o t e :
T h i s s c r e e n i s c o m m o n f o r S t y l u s C o l o r 4 4 0 , 6 4 0 ,
a n d 7 4 0 e x c e p t f o r t h e p r o g r a m n a m e .
E s c : Q u i t U p / D o w n a r r o w s : S e l e c t E n t e r : O K