blackcat4866
07-29-2021, 12:26 AM
The best part: It only jams in the bottom 1/3 of the tray!
Please try to excuse my Paint illustrations.
When the tray is full it feeds fine. As the paper is consumed the paper lifts, and the paper stack parallelograms ... so by the time the last 1/3 remains, the paper is just barely reaching the attached pickup roller. I discovered this by manually lifting the 1/3 full tray outside the machine.
There is an overly complex mechanism in the endstop to kick the paper forward as the pickup roller as the lift plate raises. This one wasn't working because the nub at the end of the plastic shaft had snapped off, and the pressure spring gone.
49821
The spring was easy enough to come by: ~5mm dia coils x 27mm long (I didn't think to measure the other spring in tray #2 until after it was fixed). The simple way to retain the spring was to drill a #67 hole through the plastic shaft and curl a piece of paperclip wire through it. Here's what it's supposed to do:
4982249823
Could they have made that endstop mechanism any more complex?
=^..^=
Please try to excuse my Paint illustrations.
When the tray is full it feeds fine. As the paper is consumed the paper lifts, and the paper stack parallelograms ... so by the time the last 1/3 remains, the paper is just barely reaching the attached pickup roller. I discovered this by manually lifting the 1/3 full tray outside the machine.
There is an overly complex mechanism in the endstop to kick the paper forward as the pickup roller as the lift plate raises. This one wasn't working because the nub at the end of the plastic shaft had snapped off, and the pressure spring gone.
49821
The spring was easy enough to come by: ~5mm dia coils x 27mm long (I didn't think to measure the other spring in tray #2 until after it was fixed). The simple way to retain the spring was to drill a #67 hole through the plastic shaft and curl a piece of paperclip wire through it. Here's what it's supposed to do:
4982249823
Could they have made that endstop mechanism any more complex?
=^..^=