So here is the Culprit for above said fault symptom. Solenoids are used to control the timing of the paper feeding. So cleaned the surface with wet cotton cloth with IP. On removal by visual inspecting the solenoid unit I found some sticky grease like substance is there on Solenoid clutch plate. So I have removed solenoid unit from the Printer for further inspection. So this part is handling by Solenoid Unit which gets signal from logic board and it decides where to stop the paper pickup gear after the printing. Hence I have decided to dismantle the printer.įirst of all I have removed paper pickup pad unit and cleaned the Area with IP.Īs per stated the fault symptom, the meaning that it will just keep throwing out blank sheets without stopping the Gear after single page printout command. Received CANON LBP 2900 Laser printer in my workshop for above said fault symptom for repair. As per symptom the probable culprit area is Paper Pick up assembly. I have removed the cartridge for visual inspection because some time you can find ball pen, refills paper clips, eraser rubber band and so on in paper pickup assembly (Mishandling by user and if this is for home use then it sure this creative work done by children’s).īut as I have inspected from toner cartridge location I did not found any suspicious things as stated above.
Good luck.Fault Symptom: Feeding blank sheets continuously and some time getting Paper Jam Error on Computer screen with paper sucking inside the printer. If you look down in the paper chute and the arm is stuck off to the side, try to get some tweezers or thin pliers and gently tweak the arm back into the middle of the opening. It will then get a paper jam error, even though it is able to run a piece through during the initial turn on. If it catches on the side and sticks, the printer will think there is paper inside of it all the time. If you try to use too thick of paper, or someone forces paper down into the printer, they can bend the plastic arm off to the side. The arm is very thin and made of cheap plastic. This activates a sensor that tells there is paper in the printer. When you put paper into the printer, the paper pushes down on this arm. Down inside the paper chute there is a little arm or latch. Since his warranty on the printer had already expired, he let me take it apart to see if I could find out what was wrong. I followed several peoples suggestions on what to try, but nothing worked. I loaded paper into the printer, it would feed a sheet through (so the paper is not jammed), but would then come up with a paper jam error. My neighbor had the same problem with his printer.
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