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Print Head
This machine is equipped with the print head to discharge ink.
This chapter explains about the print head and its handling.
Number of mounted print heads
About print head
The print head is a part to complete your picture by discharging ink on the specified position.
As this is a very delicate part, fully be careful about its handling when using.
Note for handling print head
About handling of the print head, be careful about the items below:
To keep print head status
To perform stable printing, be careful about the items below in order to keep the print head status:
SWJ-320S2 SWJ-320S4
2 head 4 head
• In the print head used in this machine, up to 16 nozzles with discharge defect (nozzle missing or
deflection) per nozzle line may be included by default.
In the print mode where the nozzle recovery function is valid, as the nozzle with discharge defect can
be recovered by other nozzle for printing, it does not receive influence of defect nozzle.
In the print mode where the nozzle recovery function is invalid, as the nozzle with discharge defect
cannot be recovered, printed result may have nozzle missing.
If printed quality receives influence, perform printing in the mode where the nozzle recovery function
is valid. “Valid/ invalid of nozzle recovery function in each print mode” ( P.4-18)
• Do not touch the nozzle surface of the print head other than for wipe at performing ink purge ( P.4-
14).
• Carefully read the explanation of ink purge ( P.4-14) before wipe at performing ink purge.
• Be sure to perform maintenance for the ink cap and the wiper of capping station every day.
If you leave it dirty, dirt may adhere to the nozzle surface, or, dust and dry ink may be rubbed against
the nozzle. It may cause discharge defect.
• Dust and very thin fibers of the media adhere to the platen and the media holder.
If they adhere to the carriage bottom surface or the nozzle surface, it may stain the media and
discharge defect may occur.
Clean the platen and the media holder every day.
• When the carriage bottom surface became stained due to ink and thin fibers of the media,
immediately clean it.
If you leave it dirty, dust and dry ink may be rubbed against the nozzle at wiping operation when
performing head cleaning.
• When you clean the carriage bottom surface, fully be careful not to rub the nozzle surface.
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