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Russell H.
Russell H., Service Tech.
Category: Office Equipment
Satisfied Customers: 464
Experience:  10 yrs fixing office equipment. Decades of typewriter fixes.
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I have a Nc-b402sc printer that keep getting jammed on every

Customer Question

I have a Nc-b402sc printer that keep getting jammed on every copy
Submitted: 7 months ago.
Category: Office Equipment
Expert:  Russell H. replied 7 months ago.

Hi, thank you for contacting My name is Russell. I will do my best to provide the right answer to your question.

How old is the Sharp printer in question?

Where do the jams occur?

What is the error message or error indication on the printer, exactly, when that happens?

Customer: replied 7 months ago.
Have no idea of age
The jam occurs right before it exit
Error is a misfeed has occurred
Expert:  Russell H. replied 7 months ago.

That is most likely to be a problem with the fuser.

The fuser is at the end of all laser printer, and laser copier, printing processes.

It applies heat to the paper, which fuses the toner powder onto the paper.

Customer: replied 7 months ago.
can that be fixed
Expert:  Russell H. replied 7 months ago.

Be careful when examining the fuser, and turn the printer/copier Off first, and wait 15 minutes, to be sure of not burning your fingers - fusers are quite hot.

Customer: replied 7 months ago.
What do I do when I take it out
Expert:  Russell H. replied 7 months ago.

It can be fixed. Replacing the fuser unit, as a unit, is the usual cure.

Expert:  Russell H. replied 7 months ago.

Also, if the rollers (there are several rollers in it) are obviously out of place in the fuser, or damaged, upon inspections, then you can do various things.

Customer: replied 7 months ago.
It has exited the fuser when it get jammed
Customer: replied 7 months ago.
It jams as soon as the last part of paper exit fuser
Expert:  Russell H. replied 7 months ago.

That's different.

Offhand, I'm not sure what is wrong. If the paper has completely exited the printer when it jams, then make sure there is no paper elsewhere in the printer/copier.

Also, try copying *one* sheet. See if that fails to jam the printer.

Customer: replied 7 months ago.
That's what I'm doing one at a time but
Expert:  Russell H. replied 7 months ago.

If a one-sheet copy completely exits the printer and exits the fuser into the output tray... then 'a misfeed has occurred' means something else. E.g. a stuck sensor switch somewhere, or an erratic circuit board.

But I honestly am not sure. Would it be OK if I Opted Out and let another Expert take over this case by and by?

Customer: replied 7 months ago.
It's hanging up right b4 output tray
Expert:  Russell H. replied 7 months ago.

I can't picture that. How far out of the printer does the paper get? inches? at all?

Customer: replied 7 months ago.
The printer is a mix-b402sx
Customer: replied 7 months ago.
Customer: replied 7 months ago.
I took the out put tray out and it works fine
Expert:  Russell H. replied 7 months ago.

If the paper has just exited the fuser but stops there and doesn't get deposited into the output tray, then a sensor switch that detects the presence of paper in the fuser, may be being activated, but not 'springing back', either sticking in place or otherwise not 'releasing' after the paper leaves the fuser.

If that sensor switch is in the fuser unit itself, in this model, then replacing the fuser would cure it.

Expert:  Russell H. replied 7 months ago.

Do you mean, the error is fixed if the output tray is removed?

Then somehow it was fouling up the fuser region. Or not inserted correctly.

Customer: replied 7 months ago.
if I remove output tray the printer works fine for some reason the rollers in output tray is not working
Expert:  Russell H. replied 7 months ago.

Or perhaps the fuser unit was malpositioned. And fed paper out to a place where it was blocked from exiting properly.

Or the exit feed rollers are not turning because the fuser is malpositioned and gears are not meshing that drive the exit feed rollers - ?

Customer: replied 7 months ago.
This unit has some type of stapler built in output tray and its removable
Customer: replied 7 months ago.
Do u see the paper when I slide tray out
Expert:  Russell H. replied 7 months ago.

I'm examining those photos...

Expert:  Russell H. replied 7 months ago.

Thank you for taking the photos and posting them - they provide more data about the problem.

If there's a stapler after the fuser, then the problem is in the stapler, doubtless. Check its connections to the rest of the printer.

(If a sensor switch in the stapler was disconected, then the machine would sense a misfeed or jam and stop, just as it seems it is doing.)

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