This article is in reference to the paper tray P/N RM1-1088 that is used in the HP LaserJet 4250 series printer. There is a plastic guide with a blue handle that adjusts the length of the paper. The molding on all of them has a weak point embedded on them and the tray will break at that point every time. If you inspect closely you will see it, the molding has a small crack already from the factory. I have noticed that they made a change sometime after 2002. The edge on the guide is a bit shorter, but they still break in the same area…good try.
The tray P/N RM1-1088 retails for over $100.00 US, but now you can purchase just the guide and save a quite lot of money.
Problem: The weight of the paper puts strain on that point of the tray and it will break in this area every time. If you fill your tray with 500 sheets, (this is what it is designed for) the paper is very heavy and when the end-user pushes it in hard (and you know they do) snap there it goes! When this part breaks the printer will get 43.1, 60.02 and 13.01 error codes. This is because the tray wont lift (60.XX), the paper gets pushed back and wont feed, (13.01). and the 43.1 error happens because the printer thinks it is feeding Legal size paper but its not. It’s feeding Letter size and that causes confusion in the programming of the printer.
Temporary Fix: If it breaks, set the length to the size that you need and use packing tape to keep it from moving until you can fix it right. The best solution is to repair it. There are now repair kits for this Guide. The part number is RM1-0030 and the description is ” Paper Tray Kit”. It will fit in HP LaserJet models 4200, 4300, 4250, 4340, 4350, P4014, P4015 and P4515 printers. Yes, you can now repair them (For a lot less) instead of buying a complete tray!
This article is with reference to the Paper tray Part Number RM1-1088 that is used in the LaserJet 4200, 4300, 4250 and 4350. The plastic guide that adjusts for the length of paper on the tray will break. It also looks like they were designed to break. Hewlett Packard has also elected to use the same weak part on their new P4515 series. The tray retails for over $100.00. Pretty hefty amount but now you can buy just the guide and save a lot of money.
Problem: The paper back stop has a molding flaw and you can see it in a new tray. There is a place on the back stop that has a weak spot. If you look carefully it looks like a crack. The weight of the paper puts strain on that point of the tray and will break right in this area every time. If you fill your tray with 500 sheets, (this is what it is designed for) the paper is very heavy and when the end-user pushes it in hard (and you know they do) Snap there it goes! Then you will get either a 43.1, 60.xx or 13.1 error code because the tray is not set to the proper size and it causes confusion in the programming of the printer.
I do have a preventative measure. Setting the tray to the size you need and applying tape to the back stop before it breaks. The main problem with this is that you can’t adjust the size. The best solution is to repair it. There are now repair kits for the Guide.. The part number is RM1-0030 Paper Tray Kit. It will fit in HP Laser Jet 4200, 4300, 4250, 4340, 4350, P4014, P4015 and P4515 printers. Google Tray repair kits for hp 4250 or go to EBAY to find them. Yes, you can now repair them (For a lot less) instead of buying a complete tray!
LaserJet-4000/4050 Scanner This article shows how to clean the Scanner on the Hewlett Packard 4000 series Laser Printers.
This service procedure needs to be done when the machine is in a dirty environment and the dust builds up on the mirror inside the scanner.
Symptoms of a dirty scanner:
Light prints even after you have tried a new toner cartridge. Mostly shows itself as light prints on one side of prints or streaks or wide blank lines. HP LJ-4250: Blank streak down the middle of page. Note:This procedure is basically the same for the Following LaserJet Models: 4000, 4050, 4100, 4200, 4300, 4250, 4350, P4015, P4515
Getting to the Scanner:Turn the power off and remove the power cord. Remove the right rear side cover. Push the cover toward the rear and it will slide out. Open the top cover and remove the toner cartridge. Remove the toner cartridge drive arm. Remove the Toner Cartridge Drive Arm by using needle-nose pliers to pinch the pin from its hinge on the Top Cover. Remove the four screws holding the Top Cover (two are behind the Rear Output Bin, near the top, and two are on top of the printer under the Top Cover). Squeeze the right front side of the Top Cover to remove it. It may be necessary to use a small flat-blade screwdriver to release the tab inside the small hole. Holding the output assembly in place (located toward the rear of the printer), remove the Top Cover. Disconnect the wiring connector(s).
Remove output assembly:
Facing the rear, pull up brass arm on the left side straight up. Pry the white tab on the right side and pull the output assembly up and out. Caution: Be careful of the sensor flag. When reinstalling make sure it rotates freely.
Removing the Scanner Cover:
Carefully remove the wiring connectors. Remove the cover of the scanner by removing the screws and using a small flat blade screwdriver to release the latches. Carefully remove the cover.
Cleaning the Mirror: The only mirror you will be cleaning is the one that shines directly on to the drum in the toner cartridge. This mirror is at an angle. You need to clean the mirror from below. Use a Q-tip to clean it. Make sure you clean the edges really good. Reinstall everything in reverse order.