Question about HP DeskJet 3550 InkJet Printer

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Broken internal components

There is a plunger type mechanism on the left side of the prinrter as you face it, which connects to a black piece of plastic covered in rubber, which sits atop of a metal trigger. How does the white plunger connect to this black plastic so that it will function correctly and what is its function?

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Posted on Apr 23, 2008

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2600n faded print on both left and right side.(word doc, no images) not using color black print only.

Is the cartridge an original HP or an inexpensive compatible? The black cartridge could be out of toner. Not a common defect for the Q6000A cartridge though. If it is a poor quality compatible the defect may be the result of a misaligned internal component. Either way replacing the black cartridge should resolve the issue.

Jan 18, 2010 | HP Color LaserJet 2600n Printer

2 Answers

Brothet HL-1870N gives Error E50

For the Brother HL-1850/1870N printers, clearing the "Service Call Error E50" in the LED display simply requires depressing the "Go" and "Set" buttons simultaneously while turning on the power. Continue to depress the "Go" and "Set" buttons until the LED display shows "Go Test Mode". Release the "Go" and "Set" buttons, the depress the only "Go" button again and the printer will start normally.

If problem persists, let me know.

Thanks for using ' Fixya ' and have a nice day!!

Aug 30, 2009 | Brother HL 1870N Laser Printer

1 Answer

Carriage jam


Just open the printer and u will find in right hand side one black colour unit is there it moves two and fro and insite it there is a gear it is connected through other mechanism gear in left hand side after opening it u will definately find that its hinge is broken or gera is broken.

replace it ang ur problem will resolve,


Jul 30, 2009 | HP PSC 1610 All-In-One InkJet Printer

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E50 error on Brother HL6050DN. Page count was


Error E50 comes up on the printer when there is an issue with the fuser unit of the printer. It is either the fuser unit is faulty or fuser unit is not clean. This what you can do to get the error fixed--

All "left" and "rights" are when facing the front of the printer. Remove the electrical cord from the back of copier by pulling. Remove bottom tray. Remove the smaller tray that comes out the back that has a LTR/A4 lever. Open front of machine to take out toner and drum just to make it lighter. Leave open. Take off top cover (4 screws and two wire jacks to unplug). Remove screw on back right side near bottom. Remove screw on front left near bottom that holds left side cover. Remove screw on back left near bottom (it holds a piece in the back and the side cover). Slightly pull out that back, left plastic piece (it won't come out all the way yet) and wiggle things around to get the left side cover off. That back left piece that didn't come out all the way has a plastic *** holding it in. To be able to press that *** is why the side cover is removed. Press *** and pull the back left piece out while wiggling things around to get the 3 plastic pieces in the back to all come out. This exposes the fuser. Remove the two wire jack connections. Remove the two screws holding fuser in. One of those screws is big with a spring - don't worry, the spring stays in place. The other screw looks normal, but it is a little longer than the other screws so remember where you lay it. Find the 2 black wires on the fuser leading to the problem piece. Remove the single screw holding it in. Pull it out and clean the wire connections. Now put things back together.

And after this is done reset the printer by--

Switch the machine on. Wait until the yellow data light goes out. Now hold down the 'GO' button AND the '+' button together four about four seconds. The LCD panel will now display a 'RESET COMPONENT LIFE' message. Use the + and - keys to select the fuser unit, and reset it. Turn the printer off. Turn it on again and it will work. Now reset the drum counter , and also the toner cartridge counter in the same way.

Please accept the solution and revert for further assistance.


Jul 07, 2009 | Brother HL-2040 Laser Printer

2 Answers

Door/covers open

dear sir; check it out on the side door left hand side (if you face door) have piece plastic door switch actuator isn't broken, change door !

Dec 26, 2008 | Ricoh Aficio 450 Copier

4 Answers

Hp Officejet 6310 All-in-one paper jam

Here's a video that shows how to clear a jam on this printer.

Apr 08, 2008 | HP Officejet 6310 All-In-One InkJet...

2 Answers

Replacement parts

I think you may have the skills to make it
get some plastic epoxy or , i get them from a auto parts store but you can also find them in home improvement stores, etc

make a small paper cylindrical mold that would engulf the old plastic piece, fill it with epoxy to the top, turn it upside down and place it on the plastic part where the old hook was. once solid you can cut this to size so it will hold the spring.

Feb 23, 2008 | Dell Photo 964 All-In-One InkJet Printer

1 Answer

Paper jam message

A couple of things.
On the left side of the paper path, there is a registration flag type sensor that a small piece of paper can be torn off on.
Also, if the paper has been caught on that flag, it may be broken.
Carefully look with a flashlight for just a corner of a piece o paper left in the machine.
I suspect possibly the flag has been broken on the registration sensor.

Nov 10, 2007 | Xerox Phaser 8500/DN Printer

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