Question about HP LaserJet 4 plus Printer
Here is the print defect information from the service manual.
1. Toner Cartridge.
The circumference of the photoconductive drum is 3.75 inches (94mm). The circumference of the developer roller is 2 inches (51mm). If a defect appears in the print image at these intervals, assume the defect is associated with the Toner Cartridge. Replace the Toner Cartridge.
2. Fuser Assembly.
The Fuser Roller’s circumference is approximately 2.5 inches (63mm) for the LJ4, and 3-1/8 (79mm) for the LJ4+/5. If a defect
appears at this interval, assume the defect is associated with the Fuser Assembly. Clean the Fuser Assembly rollers. Replace the assembly if necessary.
3. Dirty Roller.
Any dirty roller along the paper path may result in a pattern of
repetitive print image defects. Examine and clean rollers along the
We have the full service manual download available for $6.95 if you need it. We also carry all repair parts for your printer.
I hope this helps, if so please rate my solution.
Over 21 years of PC and printer support/repair
Posted on Jun 30, 2009
Save hours of searching online or wasting money on unnecessary repairs by talking to a 6YA Expert who can help you resolve this issue over the phone in a minute or two.
Best thing about this new service is that you are never placed on hold and get to talk to real repairmen in the US.
Here's a link to this great service
Posted on Jan 02, 2017
Tips for a great answer:
Nov 29, 2014 | Office Equipment & Supplies
on Dec 24, 2010 | Computers & Internet
on Dec 02, 2010 | Computers & Internet
Apr 04, 2013 | HP Officejet Pro L7580 All-In-One InkJet...
Apr 30, 2011 | Samsung HL-R6168W 61" HDTV
on Jun 29, 2010 | Microsoft Word for PC
Feb 16, 2010 | Sharp MX-2300N Color Copier
May 02, 2009 | Office Equipment & Supplies
Feb 15, 2008 | HP LaserJet 4000 Printer
Mar 12, 2007 | Lexmark X1195 All-In-One Printer
188 people viewed this question
Usually answered in minutes!