Printing only 1/2 the page

Check the pick up rollers in the tray and look for signs of wear. Most likely this is your problem.

Tray 2 paper senor not sensing the paper either it may dusty,failed or sensor flag mis placed.. verify where is the fault..Location: remove tray2 cassette, under you can observe the paper sensing flag..

In addition to the pickup roller, the separation pad in the tray should also be replaced. This pad keeps more than one sheet from feeding at a time. When we do maintenance on a printer we always replace both to stop this from happening. The part number you want is RM1-1298-000. It is used in quite a few different HP printers.

Becouse the tray configured in the printer is tray #1 so it serching the paper on tray 1 first you can set it the default tray by the menu on top of the printer.

The only way to duplex print on a standard 2420 is to print the first page, then take that page and re-insert it into the paper tray face up. Then print page 2 onto the back of page 1. If you want to automatically duplex print then you need a 2420DN printer which has the duplexing paper path as well as the formatter board with the duplex firmware.
Good Luck and Thank You for using Fixya.

i have 2420 dn printer..printer reddy mode the power on...but not initlizing...13.20 paper jaming error coming but paper is not jam..hw to resolve

Hi,

Please print a configuration page from the control panel of the printer
- Menu > Information menu > print configuration.
- Check for paper handling details.
Following setting should reflect.
Tray 1: Any size / Any Type
Tray 2: A4 size / Plain Type

If the above settings are not reflecting in the configuration page, please change accordingly by browsing on the control panel of the printer to:
Paper Handling Menu >
Tray 1 Size: Any
Tray 1 Type: Any
Tray 2 Size: A4
Tray 2 Type: Plain

Let me know if that helps to solve the issue.

Regards,
Nikhil.

Take out the toner cartridge and paper cassette , turn the printer upside down. The feed roller should not free wheel. Sometimes the roller ends break off,

Hello,

This issue can be due to fuser. I am sure you have changed the toner cartridge.
To confirm its a fuser issue, please perform the following:
1. Try printing a configuration page from tray 1, pull the top cover, as soon as the media is 60-70% inside the printer.
This would stop the paper before reaching the fusing assy.
2. Remove the paper and check if the line exist.
If exists, fuser is not faulty.
If it does not, then transfer roller, laser/scanner assy is faulty

- If fuser is faulty, perform the cleaning page as following
1. go to configure device > print quality > create/process cleaning page
perform cleaning page 5-6 times, however, if the line is due to fuser, then fuser needs to be changed.

Let me know the next update.

- Nikhil

You can't print on both sides you miss • Automatic duplex unit for two-sided printing" you're model doesn't have it.
Read below:

Shown at left:
HP LaserJet 9000 series, base unit— LaserJet 9000
base unit =
• 50 ppm print speed
• first page out in less than 8 seconds
• built-in RIP-once technology
• 300,000 pages-per-month duty cycle
• 64 MB memory
• EIO expansion slots




LaserJet 9000n = base unit +
• HP Jetdirect 610n (EIO) internal print server for Ethernet 10/100Base-TX
• 100-sheet multipurpose tray
LaserJet 9000dn = base unit +
• HP Jetdirect 610n (EIO) internal print server for Ethernet 10/100Base-TX
• 100-sheet multipurpose tray
• Automatic duplex unit for two-sided printing


LaserJet 9000hns = base unit +
• HP Jetdirect 610n (EIO) internal print server for Ethernet 10/100Base-TX
• Automatic duplex unit for two-sided printing
• 2000-sheet input tray
• 3000-sheet stapler/stacker