HP LaserJet 4250
An old Laserjet 4250 has developped a printing problem which affects the top of most pages. The severity is somewhat random. I’ve scanned one of the worst cases and cropped the image: http://postimg.org/image/jkh4v2vgb/Has anyone seen behavior like this?
Experienced technical support provide their insights in answering this question :
It looks like a fuser problem. One way to prove it is with the half-stop test. Put a sheet in the drop down manual feed tray. Send a print job and watch the paper. When the end of it is about to enter the printer, open the lid and take out the toner cartridge. Look at the printed image. If it looks OK, then it is a fuser problem. If not, then it is a toner cartridge issue since it hasn’t gone through the fuser.
How to Identify and Fix Common printer Problems ?
Our sources include academic articles, blog posts, and personal essays from experienced technical support :
Adjust the application settings and the printer settings to the highest possible resolution. Both of these features can typically be accessed from the “Print” menu. Dpi settings can range between 72 dpi and 2400 dpi. Choose the highest dpi setting available for best results when using a laser printer.
The HP LaserJet 4250 printer series is a monochrome laser solution for workgroups of 10 – 15 users. These printers have print speeds of up to 45 ppm1 (letter)/43 ppm1 (A4) and built-in Instant-on technology that lets you have the first page in less than 8 seconds.
Dots are typically caused by foreign material inside the machine (for example paper dust, glue from labels or envelopes, paper clips, staples) sticking to or damaging the surface of the drum. Toner builds up on or sticks to these areas on the drum and creates black dots on the printed pages.
During the printing process, paper, toner, and dust particles can accumulate inside the printer. Over time, this buildup can cause print quality issues such as toner specks, smears, or marks. The printer has a cleaning mode that can correct and prevent print quality problems.
Vertical misalignment or banding. Incorrect or missing colors. Blurry or smeared printout. Printer rollers leave unwanted marks on your documents. Print quality does not improve after head cleaning.
HP LaserJet 4250N Laser Printer (Q5401A) – (Renewed)
Write down the two times from the stopwatch. The first time tells you how long a one-page document takes to print. If the second time is greater than one minute, convert the time to seconds and divide seconds by four. The result is the average time, per page, for a long print job.
Paper Jams
This is a common laser printer problem. Primary causes include grime, dust, worn rollers, or incorrect paper weight. The most basic way to prevent paper jams is simply through regular cleaning of your printer. Also, replace parts as needed.
If you find dots or spots appear on your printed documents this is usually caused by paper dust or objects such as staples or paper clips sticking to the surface of the drum. Toner builds up around these areas which in turn creates the dots or spots which then appear on your print-out.
If you try to print an image larger than the size for which the image has available information, the image will begin to look jagged or blurry. This is known as “pixelization,” because the printer is literally making the pixels of the image larger to account for the lack of picture information.
Here are the most common causes of a printer printing faded text or images: Low ink or toner levels. Toner sticking to the fuser roller or problems with the transfer roller. Low ink or toner density settings.
Relevant Questions and Answers :
the most relevant questions and answers related to your specific issue
Laserjet 4250 print quality issue (see image)
ANSWER : It looks like a fuser problem. One way to prove it is with the half-stop test. Put a sheet in the drop down manual feed tray. Send a print job and watch the paper. When the end of it is about to enter the printer, open the lid and take out the toner cartridge. Look at the printed image. If it looks OK, then it is a fuser problem. If not, then it is a toner cartridge issue since it hasn’t gone through the fuser.
Read Full Q/A … :
HP LaserJet 4250
HP Laserjet 4250 – RFU LOAD ERROR
ANSWER : Italiano:
Read Full Q/A … :
HP LaserJet 4250
Service manual for an HP Laserjet 4250 (or 4250n)
ANSWER : Hello all,Can someone please tell me where to find service manual for a 4250 or 4250n printer?I used Google, Fileshare.eshop.bg, peer-to-peer, but with no avail …Thanks alot for your answers!
Read Full Q/A … :
HP LaserJet 4250
HP Colour laserjet 2550n printer Tray2 issues
ANSWER : Ensure that the printer is turned on and in the Ready state.
Read Full Q/A … :
HP LaserJet 4250
Print Quality Issue (Streaks and Ghosting)
ANSWER : Streaks are mostly caused by internal drum wiper blades that clean left over toner off the drum to prepare it for a new image. Ghosting is caused by a leftover image on the drum. The 6 inches that you mention would be the circumference of the part that is causing it. Fusers will never cause either problem.
Read Full Q/A … :
HP LaserJet 4250
HP 4250, error 54.1 Remove sealing tape from toner
ANSWER : I am having the same problem as everyone else can someone send me a new link or the pdf
Read Full Q/A … :
HP LaserJet 4250
HP 4250 13.06.00 Fuser output paper stop !
ANSWER : pick up solenoid
Read Full Q/A … :
HP LaserJet 4250
HP LaserJet 2200D won't print configuration page
ANSWER : Find someone with a HP LaserJet 4100 and you can configure the card to the IP you want:
Read Full Q/A … :
HP LaserJet 4250