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I installed a new imaging drum on 09-15-2010 on my HP Color LaserJet 4550. The printer indicates the drum has a 92% of its life remaining. Yesterday a thin white vertical line, about 2" in from the left edge started running down the length of the page on the color prints. I checked the drum and there seems to be a corresponding mark on the drum. Does this mean I need to replace the drum? Again! Kerstin Sas-Jaworsky SAS Industries, Inc.

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Hi... cant I suggest something about your drum installation, You may have to take off your drum and clean it with a toner remover and also check your brush-line cleaner, for excess toner on the drum and the carrier because if you have exessive toner on the drum it will make unwanted drawing and line on the paper... only toner remover because if you take something else you will damage for sure your drum.

Posted on Oct 13, 2010

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MY HP LaserJet 2840 has a brand new Toner cartridge. Now it won't print at all and we are getting a "OPC at end of life" prompt. What does this mean?


Imaging drum reach 20,000 (black only) or 5,000 (color), replace the image drum.

Supplies life
The life of the imaging drum depends on the number of black-only or color pages that print jobs
require. Imaging-drum life is also affected each time the device calibrates because calibrating causes the imaging drum to rotate. Imaging-drum life is measured in terms of number of rotations rather than number of pages printed.
The type and length of print jobs also affects drum life. A series of short print jobs uses more drum
life than an equivalent number of pages printed in a single large job. To extend drum life, print
multiple copies of a print job at one time rather than sending the same job to the device multiple times.
The life of a print cartridge depends on the amount of toner that print jobs require. When printing text at 5% coverage, black print cartridges last an average of 5,000 pages and cyan, magenta, and
yellow print cartridges last an average of 2,000 pages. High-capacity cyan, magenta, and yellow print cartridges last an average of 4,000 pages. (A typical business letter has 5% coverage.)

Aug 18, 2011 | HP LaserJet 2840 Printer

1 Answer

Scanner problem -- new HP 4550


Go to hp.com. Support and drivers/enter your printer/check your operating system/find the correct drivers that allow scanning. Download and install them

Jan 29, 2010 | HP Color LaserJet 4550 Printer

3 Answers

Error message replace drum for printer hp laserjet


pristonero, there is no "main" button. what are you talking about?

Oct 20, 2009 | HP LaserJet 2840 All-In-One Printer

1 Answer

HP 4550 Color Laser jet reports no "errors" yet does not print


HP 4550 Color Laserjet Printer - Blank or white pages :

01. Your software application is sending an extra page-eject command.

02. Check the software’s printing configuration information. There is a problem with the network configuration.

03. Some sharing devices on networks may generate a blank page as a separator.

04. Check with the network administrator.

05. The printer may be feeding two or more pages at once because the paper is difficult to separate.

06. The sealing tape has been left in the toner cartridge.

07. The toner cartridge is empty or defective.

08. The laser scanner door does not open properly.

09. Remove and reseat the toner cartridge.

10. Check the laser scanner shutter door for proper operation.

11. The toner cartridge guide is damaged,
improperly positioned, or missing.

12. There is no transfer roller voltage.

13. Perform the Half Self-Test Functional Check to check all other electrophotographic processes.

14. Replace the transfer roller if necessary.

15. The high-voltage connectors are mounted on the high-voltage power supply (HVPS) PCA and protrude into the toner cartridge cavity.

16. Check the springs for functionality. Clean if dirty; replace if defective or missing.
The HVPS PCA is defective.

17.The DC controller PCA is defecti  There is no drum ground path.

18 Check the drum ground.

19. The laser scanner cable assembly is defective
.
20 The page length and margins are not set correctly for the paper size. Verify that the ribbon connector at J1307 of the HVPS is
properly seated.

21. If the HVPS has been removed recently, verify that the ribbon connector from the DC controller PCA to the HVPS is properly
seated at both ends..

22. Verify that the photoconductive drum is rotating properly. Perform is the drum diagnostic test to visually observe if the drum is rotating.
23. OR using a felt-tipped marker place an index mark on the edge of the drum outside the image area. Turn on the printer (wait for
drum rotation to occur), and then look to see if the drum has
24. moved. If the drum has not moved, investigate the mechanical
and electrical drum rotation circuitry and movement mechanisms.

25. The imaging drum shutter may not be retracting. Replace the imaging drum.

26. Lst but not the least, please fry to have the Printer int the Setcie

27. Use only HP Authorized Genuine catridges only


Jul 21, 2009 | HP Color LaserJet 4550 Printer

1 Answer

Looking for a exploded diagram/parts list for a HP 4550


Hi,
Here is a link to exploded diagrams for HP color Laser Jet printers:
http://www.printersupplies.com/c-HPCLJPRINTERPARTDIAGRAMS.html

Take note that the site does not have the 4550 model, but has a 4500 and 4650 which possibly has the same or similar internal parts.
Hope this helps you.
Regards,
Graemevm

Apr 25, 2009 | HP Color LaserJet 4550 Printer

1 Answer

HP 4550 will not print graphics


This printer will work with Vista. I use the driver that Vista provides with the standard HP internal network card and it works fine. Try putting your network card back in and undoing the USB adapter changes. Then just go in and add it back with the "Add Printer" wizard.

My compliments on the 4550, though. It's a great printer. A bit slow compared to what's out there new, but a workhorse that will last nearly forever.

Feb 12, 2009 | HP Color LaserJet 4550 Printer

4 Answers

Printing quality off? 2550 HP laser jet?


When installing new cartridges, it's always a great idea to perform a cleaning and recalibration of the machine. Below are the steps needed to do just such a task. You may want to print these out or save them somewhere for future reference as well. They are directly from the HP website.
Please rate the tip accordingly and thanks for using Fixya.com.
Cleaning the printer
  1. Verify the printer is turned on and in the Ready state.
  2. Open the HP Color LaserJet 2500 Toolbox. Click Cleaning Page on the Troubleshooting tab, and the click Print (HP Color LaserJet 1500 or 2500) or Cleaning Page (HP Color LaserJet 2550). A page with a pattern prints from the printer.
  3. Remove any paper that may be in tray 1.
  4. Remove the page that printed and load it face down into tray 1.
  5. At the computer, press Clean .
Calibrating the printer There are two methods of calibrating the printer manual: at the printer or from the Toolbox on the computer. From the printer Turn the printer off and then on again. From the HP Color LaserJet 1500 or 2500 Toolbox on the computer
  1. Open the HP Color LaserJet 1500 or 2500 Toolbox in one of the following ways:
    • Double-click the HP Color LaserJet 1500 or 2500 Toolbox icon on the computer desktop.
    • Select Start , Programs , HP Color LaserJet 2500 , and then HP Color LaserJet 1500 or 2500 Toolbox to open the Toolbox from the Windows desktop.
  2. Click Diagnostic Tools on the left side of the screen on the Troubleshooting tab.
  3. Click Color Calibration to perform the calibration procedure.
From the HP Color LaserJet 2550 Toolbox on the computer
  1. Open the HP Color LaserJet 2550 Toolbox in one of the following ways:
    • Double-click the HP Color LaserJet 2550 Toolbox icon on the computer desktop.
    • Select Start , Programs , Hewlett-Packard HP Color LaserJet 2550 series , and then HP LaserJet Toolbox to open the Toolbox from the Windows desktop.
  2. Click Print Quality Tools on the left side of the screen on the Troubleshooting tab.
  3. Click the Calibrate Now button to perform the calibration procedure.

Nov 04, 2008 | HP LaserJet 2550Ln Printer

2 Answers

HP COLOR LASERJET 3500


Hi!

If you could possibly manage to access the machine status menu and have it print to check the drum's life, fuser life, developer, etc.. pls refer. Kindly replace the toner cartridge accordingly use the menu settings when replacing any color if needed. Please print solid image or block in each color Cyan, Magenta, Yellow and Balck. Well see if what color causing the problem. Please let me know the print result it may be; washed out or too light, too bright or black, double image, or not clean. Don't hesistate to contact me again about the result.

Best regards,
Rosener Guyano

Jan 31, 2008 | HP Color LaserJet 3500 Printer

3 Answers

HP LaserJet 2840 Printer


For Flexer and Guest - The Imaging Drum Assy is the 5-th consumable for your printer. U can buy it as well as any toner cartridge. U can find it in the front of the 4 toner carousel with a green plastic cover. Push it to the back of the printer and pull it out straight up. The new one has orange stripes and plastics that you should remove. The Imaging Drum's life is about 20k pages (black with 5% coverage) and 5k page (colour 15% coverage)

Dec 20, 2007 | HP LaserJet 2840 Printer

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