There will be a rear access panel that you remove to get to the paper to fix paper jams.
You should never try to clear a jam from the front of the printer.
This seems to be fault in the transport of the paper as it is stuck in the rollers. So if you have used any adhesive sticker printing, it is possible that some glue has got clogged into the rollers. If not there can be some jammed paper in the rollers or the mechanism.
So start this work only if you are mechanically able with the right tools.
Remove the covers to get access to the mechanism . Remove the motor drive assembly , the fitting of the motor to the mechanism. Once this is removed the rollers can be turned manually so that you will be able to feed a paper to see the progress of the movement while studying if there is any obstruction or damage to the paper.
There is a in-detect sensor, usually an opto-coupler , make sure this is not clogged or dirty as this IR detection feeds the signal to the processor for starting the motor drive feed.
Reassemble but make sure the rollers are aligned to be in equal gap to feed the paper without a side pull. Now you must print and see if the fault has changed. If not repeat the above work to confirm the area of obstruction.
Paper jams
85% of paper jams are caused by worn rollers Chances are, when your tech arrives, he'll tell you that the jams were caused by worn feed rollers. The rubber treads in the rollers wears down, making them smooth, so they won't pick up the paper. Sometimes, they are aged, which also gives them a smoother rounded texture, causing jams. The quick fix is to liven up that roller with a mixture of alcohol and soap. Damp a rag with the solution and wipe the rollers clean with it. That's make them more pliable and the paper jams will cease.
MP150 reset:
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4.
Turn
the machine around and open the Jam Clear Cover (1). Look inside the machine and
remove any jammed paper. Then close the Jam Clear Cover (1).
5.
After removing all of the paper scraps, Close the scanner cover by lifting the
scanner cover to release the lock. Gently push the green scanner cover support
down and then close the cover.
6.
Remove the paper tray from the machine.
7.
Place one of your hands under the LCD unit and into the opening of where the
paper tray was.
8.
Using your hand, lift the front of the machine approximately 6 inches off the
surface.
9.
Look inside the tray areas roof of the machine and you should see a row of black
rollers. See picture below.
10.
Look in-between each of the black rollers for a piece of stuck scrap
paper. (A flash light may need to be used if you are having trouble
locating the paper scrap).
11.
Using a pair of tweezers, the paper scrap can be easily removed from the exit
rollers.
12.
Place the machine gently down onto the surface. -
If paper scraps were found and removed from the machine, continue to
STEP
13. - If no paper scraps
were found inside the machine, the paper in the tray may be causing the issue.
If the paper is slightly curled, the print head will
catch the edge of the paper and tear it. To resolve the issue, the paper
must be replaced.
-
If you do not have replacement paper, follow the rest of this solution,
after you have replaced the paper.
-
If you replaced the paper, continue to STEP
13.
13.
Put the paper tray back into the machine.
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