Laserjet 4350dtn Error
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Hp Laserjet 4250 Cleaning Page
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they order new cartridge for them to try printing. A problem now occurs because the printer prints the whole paper with somewhat like very hp 4250 driver small dots. It seems ok after you print except of the very small dots spread all over the paper. I thought it was the cartridge, so we changed the cartridge that is good but still the same. We have changed the scanner, the transfer roller with good one but the problem still exist. I have also checked the groundings and i think its http://h20564.www2.hp.com/portal/site/hpsc/public/psi/troubleshootResults?sp4ts.oid=412160 ok. Pls. help me solving this problem, i have been blamed by the company bout this trouble. Any help would be very much appreciated! Thanks!!! Respond to this 1 Our client't laserjet 4350 is having a paper jam problem.I have disassembled the system and could not find and paper.Pls will need preferred solutions to the problem. by unknown on May 12, 2008 at 8:08am http://www.fixyourownprinter.com/posts/39269 Add comment Please sign in to comment 0 First off you need to do a half test. Put a sheet of paper on the manual feeder and run a config page. When the back edge is almost all the way in, lift the top cover to stop printing and remove the toner and look at the image on the paper below. If the defect is there and the dots are black spots and not missing toner spots, then the issue is the toner cartridge, contrary to using another one. If the defect is not there, the issue is the fuser film. Look at it logically. It can not be the transfer roller since that only attracts the toner from the drum to the paper and is on the back side of the paper. It can not be the laser/scanner since that will cause void areas of toner, but not cause extra toner on the paper. Therefore, there are only two things which can cause spots on the printed side and they are the toner cartrdige and the fuser film sleeve. The logical question I ask are the toner
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Account Login Shopping Cart My Account Checkout Home Troubleshooting 51.2 Error HP LaserJet 4250 4350 4240 Laser scanner failure Email 51.2 Error HP LaserJet 4250 4350 4240 Laser scanner failure The 51.2 errors on the HP LaserJet 4250 4350 and 4240 series printers indicates a failure with the laser scanner assembly. You can try turning the printer on and off; sometimes that will temporarily reset the error code and allow you to print a few more pages. Usually the error reappears, in which case you should replace the laser scanner. Fortunately, on this model replacing the laser scanner is not a difficult repair; see instructions below. Click here to purchase the laser scanner assembly. On the rear right side, grasp the formatter cover by its lip and pull it firmly toward the rear of the printer until it stop and comes free. See picture below. See picture below -- use a flat-blade screwdriver to gently pry the plastic overlay up and outward from the right side of the control panel. Free the plastic overlay from its tabs on the left and lift it up & off the printer. Once the control panel overlay is removed, use a flat-blade screwdriver as shown in picture below to release the retaining clip from each side of the control panel, then rotate the front of the control panel upward. There is a tab (see arrow in picture) hidden behind the top center of the control panel, rotating the control panel outwards clears that tab. Also, there will be a ribbon cable connected to the bottom of the control panel, disconnect that ribbon cable and completely remove the control panel. Open the top cover and remove the toner cartridge. Disconnect the toner cartridge drive arm by using needle-nose pliers to squeeze the pin and push it back through its retaining hole on the top cover. See picture below. Fold down the rear output bin at the back of the printer, and remove 2 screws (see picture, screws circled as #1) hidden underneath the lip of the top rear of the printer. Next, remove 2 screws from the front of the top cover, circled as callout 2 in picture below. See picture below -- squeeze the frame bel