– 3.20 –
3-4. Plotting failure
3-4-1. Print is not sharp
Problems A line has been omitted from the print. (Specified color)
A stripe in the scanning direction is partially printed with widened.
Characters printed by a specific nozzle are displaced.
Causes 1) Nozzles on the head have clogged.
Failure of ink jet is generated.
2) The pump fails to turn.
3) The head ID is not set correctly.
4) The wiper is not cleaned.
The amount of wiper contact is large/small.
5) The cap position is not set correctly.
6) Paper fragment or other dust is present on the head path above the media
holder.
Checking procedure 1) Print the nozzle check to check the printed result.
2) Perform cleaning to confirm that the pump is rotating and that ink is
being ejected.
3) Check the head ID.
4-6) Visually confirm the wiper and cap.
Remedies 1) Clean the head. If cleaning is executed several times and the system still
is not restored to correct operating condition, fill with ink for up to a
maximum of 3 times. If the system is still not restored to correct operating
condition, replace the head.
2) Replace the pump motor and pump unit, or adjust capping
3) Set the head ID.
4) Adjust the wiper. Refer to [4-2-8. Adjustment of the station position].
5) Adjust the capping position.
6) Remove the dust.
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