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Replacing cartridge for HP printer office Jet Pro 6978

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6ya6ya
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Posted on Jan 02, 2017

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  • 25 Answers

SOURCE: Paper jam in HP 4255 office jet all in one printer

Clearing paper jams
Paper jams can be real or false. The unit may report a paper jam even when there is no jammed paper. The solution to a real paper jam or a false paper jam is the same.
CAUTION:
Jammed paper must be removed using the rear access door with the power cord disconnected to avoid mechanical damage. Do not remove jammed paper from the front of the unit.

  1. Turn off the HP product and turn it around so the back of the unit faces you.
  2. Disconnect the power cord from the back of the all-in-one. The power cord must be disconnected to allow the paper feed rollers to turn freely.
  3. Locate and open the rear access door by pressing in on the left side tab and then pulling the door toward you.
Figure 2: Removing the rear access door

  1. Inspect the pressure rollers on the rear access door and verify that they are clean and turn freely. Clean the rollers if needed with a soft towel lightly moistened with water. If the rollers do not turn freely, replace the rear access door. Click How to Buy on this page to order replacement parts.
  2. From the rear access door opening, remove the jammed paper.
  3. Remove the remaining paper from the paper supply tray. Discard any paper that is damaged or crumpled and then re-stack and reload the paper into the paper supply tray.
  4. Reinstall the rear access door.
  5. Reconnect the power cord to the unit and turn the unit on.
Preventing paper jams
The following information will help prevent paper jams from occurring:
  • Never use paper that is torn or wrinkled.
  • If you are having problems using paper that has already been printed on once (recycling), replace it with new paper.
  • Remove and then reinstall the rear access door. Verify that the access door is fully locked in place. The paper can skew if the rear access door is not locked.
  • Every six months to one year, clean the paper feed rollers with a rag lightly moistened with water. Over time the paper feed rollers accumulate dust and do not function as well as they once did.
  • When printing envelopes, tuck the flap into the envelope and crease the folds before printing.

Posted on Jul 08, 2008

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  • 14 Answers

SOURCE: Office Jet pro L7500 paper jam - how to open printer?

hi!!! in your case my advise to you is to open the duplexer located at the back of the printer and look if there's a stock paper or any material that can cause paper jam to your printer.

Posted on May 18, 2009

  • 6 Answers

SOURCE: hp 6500 office jet refill

to refill 920:

1. If you have the plastic cap that covers the 9 mm. hole where you can see the sponge, then tape this cap to the cartidge with scotch tape. If not, use some duct/masking tape to cover the round hole.

2. Use the dry hypodermic needle to find the hole that will be found at the very center of the 920 label. With the needle, pierce the label.

3. Fill the hypodermic needle with 4 cc of ink.

4. Insert the needle 2-3 cm. into the hole made in step 2. Draw out 1 cc of air, then slowly force the 4 cc of ink into the sponge. Use toilet tissue to absorb any ink that might have escaped.

5. Let the catridge stand overnight (if possible) so as to allow the ink to evenly saturate the sponge. If not, insert it into your printer immediately.

Note: If you are going to refill catridges, be certain not to allow the sponge to dry completely. Thus, you might want to do step one immediately and to enclose it in a sealed sandwich bag upon removing an empty catridge from your printer even if you are not going to fill it immediately.

www.catherinecollege.net

Posted on Aug 12, 2009

  • 6 Answers

SOURCE: hp 920 xl ink cartridge filling instructions anyone have them

to refill 920:

1. If you have the plastic cap that covers the 9 mm. hole where you can see the sponge, then tape this cap to the cartidge with scotch tape. If not, use some duct/masking tape to cover the round hole.

2. Use the dry hypodermic needle to find the hole that will be found at the very center of the 920 label. With the needle, pierce the label.

3. Fill the hypodermic needle with 4 cc of ink.

4. Insert the needle 2-3 cm. into the hole made in step 2. Draw out 1 cc of air, then slowly force the 4 cc of ink into the sponge. Use toilet tissue to absorb any ink that might have escaped.

5. Let the catridge stand overnight (if possible) so as to allow the ink to evenly saturate the sponge. If not, insert it into your printer immediately.

Note: If you are going to refill catridges, be certain not to allow the sponge to dry completely. Thus, you might want to do step one immediately and to enclose it in a sealed sandwich bag upon removing an empty catridge from your printer even if you are not going to fill it immediately.

Posted on Aug 12, 2009

  • 1 Answer

SOURCE: hp office jet j5780 cartridge error: cartridge on right must be replaced

Switch off, Remove catridge and Clean any leakage in the printer.
Clean the catridge with saliva if u do not have any cleaning liquide. Put the catridges back switch on and you are there. My hardware officer just tried it this morning and it worked like magic.
Note make sure all leakages are removed.

Posted on Jan 13, 2010

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