J
John B
I've enjoyed this laser printer for about 4 years now. Usage is relatively
modest, at about 5000 sheets printed.
Yesterday, it failed for the first time.
If I empty the main tray, and load up the multi-purpose (fold-out) tray, I
can use the printer. In this case, I must hit the "continue" button to
initiate a printing function, after a job is sent to the printer from the
computer. However, subsequent sheets of a multi-page document flow
automatically.
The problem lies in the use of the MAIN tray, which lies at the bottom of
the printer.
If I print a "test page," from the computer, or in autonomous mode, I get a
jam. Of course, the same thing happens if I print a regular document from
the computer.
Assume the desired job is for only one sheet. The desired sheet of paper is
drawn from the tray, and printing begins. Just before the paper can emerge
into the catch basin, the computer halts with a jam. A second, unauthorized
sheet, always is drawn from the main tray, at about the time that the
desired sheet is finished.
I am hoping somebody who has experience with this sort of failure might shed
some light here for me.
It seems that the mechanism that draws paper from the main tray draws a
second page, without good reason. Perhaps a controller is faulty, in that
it "tells" the mechanism to "draw" at an inappropriate time. Perhaps the
mechanism draws inappropriately, of its own accord.
I found a gear train that controls the draw from the multi-purpose tray.
This works fine. I marked a white gear with a black pen, and noticed the
gear returns to the proper position after each sheet is drawn. I wish I
knew where such a gear was, for the main tray. Perhaps some mechanical
latch has lost its ability to stop the gear train.
The inside of the printer was very clean, which tells me this fault should
be from mechanical failure, rather than electronic failure due to excessive
heat. Dirt can block a printer from cooling itself, but that is not the
case here.
Any help greatly appreciated!
John
modest, at about 5000 sheets printed.
Yesterday, it failed for the first time.
If I empty the main tray, and load up the multi-purpose (fold-out) tray, I
can use the printer. In this case, I must hit the "continue" button to
initiate a printing function, after a job is sent to the printer from the
computer. However, subsequent sheets of a multi-page document flow
automatically.
The problem lies in the use of the MAIN tray, which lies at the bottom of
the printer.
If I print a "test page," from the computer, or in autonomous mode, I get a
jam. Of course, the same thing happens if I print a regular document from
the computer.
Assume the desired job is for only one sheet. The desired sheet of paper is
drawn from the tray, and printing begins. Just before the paper can emerge
into the catch basin, the computer halts with a jam. A second, unauthorized
sheet, always is drawn from the main tray, at about the time that the
desired sheet is finished.
I am hoping somebody who has experience with this sort of failure might shed
some light here for me.
It seems that the mechanism that draws paper from the main tray draws a
second page, without good reason. Perhaps a controller is faulty, in that
it "tells" the mechanism to "draw" at an inappropriate time. Perhaps the
mechanism draws inappropriately, of its own accord.
I found a gear train that controls the draw from the multi-purpose tray.
This works fine. I marked a white gear with a black pen, and noticed the
gear returns to the proper position after each sheet is drawn. I wish I
knew where such a gear was, for the main tray. Perhaps some mechanical
latch has lost its ability to stop the gear train.
The inside of the printer was very clean, which tells me this fault should
be from mechanical failure, rather than electronic failure due to excessive
heat. Dirt can block a printer from cooling itself, but that is not the
case here.
Any help greatly appreciated!
John