HP 2300 jams when duplexing multiple pages.

Its is trick..If its more then two pages print, printer grabs second page even first page in duplex unit., here its confusion. Check with simplex single print, see any paper mismatch error? or printer throwing paper in output bin after successful print?. No.. check fuser out sensor or paper out roller.
Print only two pages matter in duplex, check where paper struck? if paper our roller not grabbing paper back properly in time (slipping while grabbing back) gets jam error.
Always ensure that select proper paper size in printer.Other than this it may major issue, need technical knowledge..& possibilities are less to judge the exact problem..
Keep update us to resolve the issue.

check between the rollers there will be small bits of paper jammed in that is the reason.

Check the C6200 Device Settings in the properties and make sure that the Duplex Unit is installed.

There are several thing which may cause unexpected jams in the duplex tray...,
1. first thing to do is eliminate all other possibilities by removing the netCard/Net connection Parralel connection so the machine is Stand Alone. make sure there is paper in the feed cassette 2 ( paper Tray)
press the TICK to enter menu
scroll down to diagnostic- press TICK
scroll down to paper path test - press Tick
scroll down to Source and select tray 2
scroll down to Duplex And select YES
( if the duplex option is not visible here then there is a connection/seating problem with the duplex tray)
Scroll down to copies and select 10
scroll up to print test page and press tick
the machine should now start duplexing 10 pages,
if you get the same error ( 1 page enters then jams)
it could be a dirty/snapped paper entry sensor,( looks like a little plastic match stick that protrudes into the feed path of the paper)
use a can of pressurised air to Blast any dust away from this arm and the surrounding area being careful to follow the Paper sensor Arm back to the sensor and blasting this as well-
Duplexer tray are cheaper than an engineer call out, if the fix above fails , your cheapest option may be a replacement Duplexer tray, available from most HP office equipment Stores as well as Belmonte Business Equipment.

Hello sir; seems like your paper jamming in fusing unit, ok, her is the way, open the back cover, you may see have two blue handle on each side, lift them up then open the paper guide and remove the paper.

Mel, this is what I found in the online manual:

Set the Ink Drying Wait Time longer.
Doing so gives the time enough to dry the printed surface so that paper curling and ink blots are prevented.

(1) Make sure that the machine is turned on.
(2) Open the printer properties dialog box.
See Opening the Printer Properties Dialog Box Directly from the Control Panel.
(3) Click the Maintenance tab and then Custom Settings.
(4) Drag the Ink Drying Wait Time slide bar to set the wait time, and then click Send.
(5) Confirm the message and click OK.


Make sure that the actual size of the paper is suitable for automatic duplex printing.
The sizes of media suitable for automatic duplex printing are A4, Letter, A5, B5, and 5" x 7".
Load paper of suitable size and then press the OK button.
Make sure that the Page Size or Paper size setting matches the actual size of the paper with a size suitable for automatic duplex printing.
First, check the Page Size or Paper size setting in the application software you are printing from.
Then, check the Page Size setting on the Page Setup sheet in the printer properties dialog box (Windows) or the Paper size setting on the Page Setup dialog box (Macintosh).
Note
Depending on the version of the application program, the automatic duplex printing may not be supported.
Make sure that the type of loaded paper is suitable for automatic duplex printing on the Main sheet (Windows) or the Quality & Media sheet on the Print dialog box (Macintosh).
Note
To switch to manual duplex printing, follow the procedure below.

Open the printer properties dialog box, clear the Automatic check box on the Page Setup sheet, and reprint.
When performing manual duplex printing, note the following.
If you are printing three or more pages of a document with manual duplex printing, one side of all sheets of paper will be printed first. Turn over the paper and reload the paper in the machine, and then the reverse side of all sheets of paper will be printed. Be careful not to change the order of paper in the stack.
The procedure for reversing the paper varies depending on the staple side and printing orientation. Follow the on-screen instructions.
MX850 series On-screen Manual for Windows:

http://www.usa.canon.com/consumer/controller?act=ModelInfoAct&tabact=DownloadDetailTabAct&fcategoryid=334&modelid=16279

Click on this link or copy and paste the complete link into your browser.
If I could be of further assistance, let me know. If this helps or solves the issue, please rate it.
Thanks, Joe


I’m happy to assist further over the phone at https://www.6ya.com/expert/joe_8b8c2cd6ce148309

This tells me your DUPLEXER is the one causing the jam, Ok like when you open the duplexer do you see the paper in their
second does your copier indicae that the duplexer is in stalled ?m print the config page to verify. if it worked ok until this incident then your paper feed tires in your Duplexer is worn and needs to be replaced, do not do this yourself call a Service tech or A dealer to do so, uf your in CT we can help.

Some of the rollers inside the printer have becomes slick with paper dust on the surfaces of the rollers. There is a printer cleaner paper available at most office supply stores and online. It is sticky on both sides. You run a sheet through the printer a couple of times and it removes the dust from the rollers. In your case, run the paper through the duplex unit too.

Managed to solve this myself: I disassembled the printer and noticed there was a paper jammed in the duplex tray. Rolls were all ok, but the paper blocked the use of the duplex pathway. For disassembly help check the HP 1320 service manual, which you can find on the net as a PDF.

First, the machine always prints the first page first. Make sure you have the right driver (4 plus and not 4)and check the settings in the device settings of your printer driver on the pc. Also make sure the duplex unit is for the 4 plus and not the 4.