HP LaserJet 1200

How to Identify and Fix Common Problems ?

Our sources include academic articles, blog posts, and personal essays from experienced technical support :

Smears and smudges on the paper can be caused by dirt, dust, or toner accumulated on the rollers or transfer belt as it passes through the paper. Cleaning your printer, particularly the rollers, is one of the options for removing black markings from paper.
Smears that appear in addition to otherwise well-formed output may signal toner contamination inside your LaserJet, either from a leaky cartridge or from improperly fused sheets that leave toner residue behind. Smears at the edge of the sheet that enters the printer first point to dirty paper guides.
The best way to prevent smearing is to make sure you give the ink time to dry before picking up the copy or copies. It doesn`t take long, maybe 10-15 seconds. If that doesn`t work, try changing your printer settings for a lower quality print job. You generally have a choice, Best, Normal or Draft.
Lines or streaks always appear in printouts when the cartridges begin to run out of ink. Replace print cartridges that are out of ink or low on ink.
Laser Printers

The fuser melts the toner onto the paper at temperatures as high as 400 degrees so that it is unlikely to melt off the paper in the future. Laser prints smudge if your printer`s fuser operates at a lower than ideal temperature. Fuser temperatures can frequently be adjusted to solve this problem.

(smʌdʒ ) verb. If you smudge a substance such as ink, paint, or make-up that has been put on a surface, you make it less neat by touching or rubbing it. […]
Usually a quick paper setting adjustment will clear up a ghosting issue right away. Run a cleaning – Most printers have a cleaning function built into the machine. Run this a couple of times to attempt to clear up the printing issue. Inspect the drum – Sometimes excess toner powder can stick to the drum.
A printer printing lines on the page are normally caused by a blocked, dirty, or damaged print head. Blocked ink cartridge nozzles, or not removing protective seals correctly when you installed a new ink cartridge can also cause missing lines of print.
When your printer leaves black lines, the lines indicate that there are excess toner powders on the rollers or transfer belt within the printer. As the paper is moved along by the rollers and transfer belt, any excess powder left on them can result in lines being left on the paper.
Another important consideration: since laser printers use dry toner, the ink doesn`t bleed or smear, which can be a problem with inkjet printing.
Laser printers work by using high heat to fuse powdered ink to paper. There is no bleeding effect, because laser toner does not absorb into paper.
Smudging is a technique of shading. A shading is first made on paper, then a finger or a soft material like a piece of cloth is used to smear the shading to make it smooth and well blended. In Grade 4, we will use different types of dry media such as pencils and charcoal to show the effects of light and dark.
smudgeproof (comparative more smudgeproof, superlative most smudgeproof) Resistant to smudging.
Make sure the printer platen is not dirty with ink. Unplug the machine from the AC power outlet. Lift the scanner cover until it locks securely in the open position. Clean the machine`s printer platen(1) and the area around it, wiping off any scattered ink with a soft, dry, lint-free cloth.
Faint, streaky or spotty prints are all common signs of a clog but a simple cleaning can usually get your HP ink cartridges working again. Printheads clog due to infrequent cartridge use. If you regularly go a few weeks without printing, your cartridges will eventually dry out and need to be replaced.

Relevant Questions and Answers :

the most relevant questions and answers related to your specific issue

Prints blank pages, won't print from computer
ANSWER : Don’t know why you replaced the fuser, but assuming you had print before, then it must have been something you did during the procedure. Only thing I can suggest is to recheck your work. Just because you reinstalled a connector doesn’t mean that it is seated firmly enough to work. Any flat ribbon connectors that you removed and reinstalled, check to see that the contacts are all flat and not peeled back.

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HP LaserJet 1200

11×17 prints with lines and smudges
ANSWER : Yeah, that makes it clear as can be. You should become a printer tech with your amazing insight.

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HP LaserJet 1200

Print file sent but no printing occurs
ANSWER : Been working on these since they first were released. Never seen a problem like yours. If it happens again, try doing an engine test, as it bypasses the formatter board. The engine test is located at the right side of the manual tray opening. Look for a hole in the side wall. Stick something like a paper clip into it to actuate the test button. It will then print a lined test page. If it does that, then it points to the formatter board as the cause of your problem.

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HP LaserJet 1200

Epson PX810FW printing issues, smudging.
ANSWER : Brisbane rubbish collection services have over the years made a significant contribution in keeping the city clean.

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HP LaserJet 1200

My printer feeds through one piece of paper all the way and then a half piece of paper and stops. I pull out the paper to stop the paper jam and then it prints but sounds rough. After printing, it doesn't feed the paper all the way through.
ANSWER : And the first 2 sheets, the full and half sheet that go through first, are blank.

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HP LaserJet 1200

Printing smudge
ANSWER : Either the fuse or the drum. Look at both and replace whichever has the smudges on it.

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HP LaserJet 1200

when printing front and back, the front will print well but the back will fade
ANSWER : It happens because second side voltage is much higher and the board breaks. Are you getting this issue in auto duplex only, or same error you are getting when you print second side manually?

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HP LaserJet 1200

Paper feeds straight through without printing on an Epson R2400
ANSWER : I was able to get it to print the internal test page by holding down the sheet paper feed button while turning the machine on — then continuing to hold the sheet paper feed button. It took several attempts, feeding a page straight through, but eventually it caught the sheet and printed. So it may be a timing issue as others have mentioned. It could still mean that the feed rollers are worn out. The back side of the large D-shaped feed roller has visible abrasion on it. The abrasion is difficult to see as the roller does not stay with the flat side exposed.

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HP LaserJet 1200