Occasionally, the lower arm that moves the blade back and forth sticks just enough to keep it from moving. It is an easy fix....open the lid, run a light head clean and watch the wiper blade move....if it is not moving, use your finger to nudge it a little down low at the bottom of the armature. Problem solved.
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Any hardware store..
Super Lube® Synthetic Grease (21030) - Automotive Grease & Lubrication - Ace Hardware
Dont purchase the spray version. The one you would need is the liquid version in a bottle.
Is this a design featu.... er flaw?
I've noticed that the rails that the wiper blade rides on is not cleanly finished and quite rough and any gunked ink buildup impedes the movement.
Keeping the wiper blade rails and mechanisms exceptionally clean reduces sticking problems.
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Sorry Ken.... NOT solved. If a number of machines are experiencing the same problem then it is a design flaw. Physically assisting or pushing the blade-holder can result in a broken blade mechanism arm.
Talking from experience. Yes, have had to replace the entire maintenance station because I "pushed" on the blade holder while it was retracting, a number of times. The plastic pivot point snapped and the threaded shaft came out of the motor.
The solution would have been a smooth finished cut instead of the raw rough edges that are left after machining the piece. Just my observation....
I will be taking some emery cloth to the rail slot to polish off the rough edges and then use the "Super Lube"
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Instead of wasting ink to watch the blade move, three key into the secret technician's panel, select maintenance station, toggle blade movement...
Later
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