I want to clean the underside of the scanner glas-plate but I don't know how to dismantle my officejet G55. There are some line's at the underside of the glas-plate on the spot where the electrical cable (of the scanning light) touches the glas.Their's also inkt comming out from the underside (on the side where the inkt-cartridges are stored), to handle this I also need to know how to dismantle my Officejet G55.
Hi, I had to dismantle my HPG55 to clean the glass and found the instructions at the HP website. The link to the site is below. The instructions are very clear, and there are also photos to help you along the way. I hope this helps.
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So far the overspill opf black ink seems to have stopped. Do do this I dismantled the Hewlett Packard G55 by taking off the end panels, the back locking panel and the back. I then removed and unplugged the scanner top. There are only about four identical cross-head screws and two 1/2" springs belonging to the lift mechanism for accessing the print-ink carriage.
I found that warm water got rid of the encrusted and gooey ink deposits from the panels and so, gritting my teeth, I adventurously and foolhardily held the printer chassis under the running kitchen tap. A vast amount of black ink came flooding out which gradually lightened to clear water. Then I dried the panels and the worst of the chassis wetness and allowed the lot to dry properly in the sunshine. Reassembled the whole unit, powered up and it is still working. Though whether the ink overflow will return remains to be seen.
Down inside that scan assembly are mirrors and a lens, one cover to snap off. Try cleaning the lens, and mirrors, shining a flashlight straight down you can see a sort of fog on the glass. Also the white strip on the underside of the glass needs to be clean. After that you'll have to check around for a new scan assembly.
Here is a possible cause, outside of this it will likely require service.
System error C00exxxx (x=any number or letter) or C00fxxxx (x=any number or letter) 1. Verify that all packing material is removed from the product and no paper jams exist.
2. Make sure that the front panel insert is securely in place and that all doors or panels of the product are closed. Unplug the power cord from the HP product, wait 10 seconds, and then plug in the power cord.
3. If the HP product has been in the cold, unplug the power cord and allow it about an hour to reach room temperature. Plug in the power cord.
4. The issue can also occur if the white reference strip for the scanner assembly is missing or dirty. For information on cleaning the scanner strip, go to HP document General Cleaning of an HP All-in-One or Fax Product (bpu01831).
I had this same problem and finally found the solution. The first thing you have to do is dismantle the top portion of the printer to gain access to the part you need to fix. Here is a link to an HP website with photos showing you how to do this.
Once you have it dismantled, look toward the back of the unit, near the belt that moves the light bar back and forth and you will find a small, clear disc (about an inch in diameter) that is attached to the end of the shaft of a small motor. It almost looks like a tiny disc brake and caliper. I didn't have to replace any parts; all I had to do was clean that clear disc with a q-tip that was slightly dampened with plain water. You have to be very careful when cleaning it because the disc is very thin and fragile. Don't remove the disc, just clean it in place. I also used a small can of compressed air to carefully blow off any dust particles after I finished cleaning it. If you look at the disc with a magnifying glass, you will see that its outer edge is filled with very tiny index lines. From a distance, they almost look like a grey circle around the edge of the disc. Apparently, those tiny lines and the miniature caliper count the rotations of the motor as it spins, and this tells the printer where to stop the light bar after it has scanned or copied something. When it gets dirty with dust or cigarette smoke, it can't count properly, so the scanner just makes a grinding noise after a scan because it doesn't know where to stop, and you get the "Scanner Failure" error message. I carefully cleaned that disc, re-assembled the unit, and it works like new again. I hope this helps! Sincerely, Tosty
I had the same problem with my 3 year old HP Officejet 5610. Feeding heavy paper or white card stock would result in a paper jam. The card stock would start to feed, but then stop half way. The pinch rollers seemed to spin without advancing the paper, even if the paper was fed one sheet at a time.
Solution: Clean the rubber pinch rollers with isopropyl rubbing alcohol. Partial disassembly/reassembly required.
To access the rollers, remove the scanner plate:
1. Disconnect power, USB, and phone cables.
2. Open up the scanner sheet feeder by tilting it left.
3. Unlatch the scanner scanner feeder so that it opens completely vertical. Latch is on front hinge only.
4. Remove the 4 corner hex screws on the scanner plate. Remove the 2 hex screws on the sheet feeder. (I used a small flat blade screw driver in the hex heads)
4. Lift the plate and sheet feeder away from printer box. Disconnect the 2 flat cable wires from the circuit board.
5. Scrub rubber pinch rollers with alcohol on a swab. Dry thoughly.
6. Reassemble. (NOTE: This is a good time to clean the underside of the glass plate and the scanner head)