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Stylus C40UX/C40SX/C20UX/C20SX Revision A
Troubleshooting Troubleshooting with LED Error Indications 53
Table 3-18. Dot missing occur and it is not recovered with CL
Step
No.
Detail phenomenon Check point Remedy
1
In the CL sequence, the
pump unit seems work
correctly. But, any ink
is not ejected to waste
ink pad.
Moreover, any ink is
not absorbed from the
head to the cap.
5. Check if the Pump
tube is connected to
the bottom of the Cap
assembly correctly
6. Check if the pump tube
has a little slack
between the Cap
assembly and the pump
unit when the Cap
assembly is slide up
completely.
5. Replace the Printer
mechanism with new one.
6. Pump unit may coil the
pump tube inside the unit.
In this case, pull out the
coiled tube from the
pump unit carefully.
After that, connect the
pump tube to the Cap
assembly after placing the
tube correctly.
7. If the problem is not
solved, replace the Printer
mechanism with new one.
Pump tube
connection point
Tube
Cap assy.
Pump unit
Table 3-19. Dot missing occur and it is not recovered with CL
Step
No.
Detail phenomenon Check point Remedy
2
In the CL sequence,
ink is ejected to the
Waste ink pad (this
means pump unit & cap
unit are working
correctly). But, the dot
missing is not solved at
the specific nozzles
even if the several CLs
are performed.
1. Check if the segment in
the nozzle check patter
is reduced every CL &
Nozzle check pattern
printing.
2. Check if any damage is
observed on the Head
FFC.
1. Replace the I/C with new
one in the I/C replacement
sequence.
2. Replace the Head FFC
with the new one.
3. Replace the printhead
with new one.
3
In the CL sequence, ink
is ejected to the Waste
ink pad. But, dot
missing is occurred on
all nozzle in the printing
and is not solved in the
several CLs.
1. Check if the Head FFC
is connected to the CN9
on the Main board or
Head FFC.
1. Connect the Head FFC
securely to the CN9 on the
Main board or Printhead.
2. Replace the Printhead
with new one.
3. Replace the Main board
with new one.