HP Pro 4300 C9H70UT C9H70UT#ABA Avoiding paper jams, Common causes of paper jams Cause Solution

Avoiding paper jams

Use this table to help avoid specific types of paper jams

Table 43. Common causes of paper jams

Cause	Solution
The print media does not meet HP recommended	Use only media that meets HP specifications. See
media storage and use specifications.	chapter 1 in this manual or the HP print media guide
	(available at http://www.hp.com/support/ljpaperguide)
	for media recommendations.
A supply item is installed incorrectly, which	Verify that the print cartridge and the fuser are
causes repeated jams.	correctly installed.
You are reloading paper that has already passed	Do not use media that has been used previously in a
through a printer or copier.	printer or copier.
An input tray is loaded incorrectly.	Remove any excess media from the input tray. Make
	sure that the stack of media fits below the indicators
	inside of the tray.
The print media is skewed.	The tray guides are not adjusted correctly. Adjust the
	guides to hold the media firmly in place without
	bending it. If media heavier than 120 g/m2 (32 lb) is
	loaded into tray 2, tray 3, or tray 4, the media might
	skew.
The print media is binding or sticking together.	Remove the media and flex it, rotate it 180 degrees, or
	flip it over. Reload the media into the tray. Do not fan
	media.
The print media is removed before it settles into	Wait until the page completely exits the output delivery
the output bin.	assembly before you attempt to remove the it.
When you are using the duplex print feature, the	Print the document again. During the duplex
print media is removed before the second side of	operation, the page will partially protrude from the
the document is printed.	output delivery assembly (when the page is being
	reversed). Do not attempt to grab or remove the page.
	Wait until the page completely exits the output delivery
	assembly before you attempt to remove the it.
The print media is in poor condition.	Replace the print media.
The print media is not picked up by the internal	Remove the top sheet of media. If the media is heavier
rollers from Trays 2, 3 or 4.	than 120 g/m2 (32 lb), it might not be picked up
	properly from the tray.
The print media has rough or jagged edges.	Replace the media.
The print media is perforated or embossed.	If the media does not separate easily, you might need
	to feed single sheets from tray 1.
The printer supply items have reached the end of	Check the printer control panel for messages that
their useful life.	prompt you to replace supplies, or print a supplies
	status page to verify the remaining life of the supplies.
The print media was not stored correctly.	Replace the print media. The media should be stored
	in its original packaging and in a controlled
	environment.

Q2431-90912 Chapter 7 Troubleshooting 297