The printer jams every 4 or 5 pages which I thought was a sensor or roller issue. But cleaning has not helped. I also noted heat scoring on the bottom of the panel above the fuser and on the inside of the duplexer. The whole printer gets ridiculously hot when it prints as well. Should I continue to focus on cleaning, etc or could these jams be indicative of a larger problem. If so, where should I look next?
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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.
Remove the jammed paper. Unplug the printer from the mains and PC. Inspect the rollers, etc for tiny paper piece(s) that may be stuck, or other debris. Try to clean rollers and make sure they are dry. Keep printer unplugged for about 2 minutes and replug and try a test print. Also make sure thatyou have waited long enough for the printer to heat up before giving a print job. Finally, it could be an issue with the paper sensor. If this is the case, you will probably have to take the printer in for servicing..
No relate with paper jam & page count resetting. Might be maintenance not installed properly..Remove paper jams, restart printer,if error 13.20 appears check some paper/paper particles jammed.. 1. Print from manual tray. A. If paper is jamming, check registration assembly, clean it,best method for cleaning is vacuum cleaner in this area. chk.. B. Take out registration assembly, check clutch gears, driving gears, solenoids.. 2. Check pick up rollers are properly installed in tray 2 & 3.. 3. Check PIU unit for paper jams 4. Check Fuser sensor flags. To reset the counter: Hold enter button & switch on the machine, wait till display shows cold restart, scroll to reset maintenance kit with help of arrow buttons & enter. Printer restarts & counter will become Zero..
85% of paper jams are caused by worn rollers . The rubber treads in the rollers wears down, making them smooth, so they won't pick up the paper. Sometimes, they are aged, which also gives them a smoother rounded texture, causing jams. The quick fix is to liven up that roller with a mixture of alcohol and soap. Damp a rag with the solution and wipe the rollers clean with it. That's make them more pliable and the paper jams will cease.If you plan to keep your printer,
Replace the pick-up and feed rollers.
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Wow! That's quite the printer you have there. The C9600 does have a feed roller in the front; and it's not uncommon for paper to still get stuck. Does your paper "fan" when it goes through; or simply, go through and jam? It's possible a paper feed sensor is bad too. Another thing you might want to check is the paper tray; and that the paper is set to the proper size.
Also be aware, the OKI 9600 had a recall a year or so ago for some potential "shock issues" I would advise you to check with OKI directly to determine if this printer is part of that issue too.
There is a paper empty flag sensor, looks like a plastic paddle, in the tray area. Pull out the paper tray and flick it; make sure that it is not jammed.
Also on the right hand side there is a paper pick- up roller, clean it with a cloth with some alcohol. See page 4-13 for the location of paper feed pick-up roller. page 5-27 shows the paper empty sensor flag
I think that you problem is feed rollers. If you take the paper tray out and look inside you will see two white rubber paper feed rollers. If you feel them and they are smooth,then they need to be replaced. They should feel ruff.
HP LaserJet 4, 4m, 4 Plus and 4m Plus Series Printers - False Error Message 13 PAPER JAM
After clearing all jammed paper from the HP LaserJet 4, 4m, 4 Plus, or 4m Plus series printer, the display still reads 13 Paper Jam . Even after cycling the power off and then back on, the error remains.
Open the rear door of the printer. There is a paper sensor near the upper right hand corner of the fusing assembly (just below the right edge of the long yellow warning sticker on the fuser) that can cause paper jam error messages even when there is no jammed paper in the printer. Toggle the thin black plastic lever up and down to make sure it is not stuck or sticky. The lever should be in the down position before closing the back of the printer. If the lever is stuck or missing, the printer will generate a false paper jam message.
Hope it will help you !