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Laserjet 4si problem

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by grandhighdruid 1 view

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I have a 4si that originally was not printing very well on the right 2 inches of the page. I have already replaced the fuser, transfer roller, and high voltage power supply. Today, I tried a different DC controller, found a ton of dust and cleaned it out, now both DC controllers give a 13.2 paper jam error, where none existed before. I am thinking that the problem is DC power supply related, but I would like some confirmation before I try it. And please don't send me what the manual says. I have been through that already. Thanks for your help.

6 replies

by pjs

First thing I recommend is to thoroughly clean EVERYTHING. I imagine the problem has something to do with the transfer roller.When you started stirring up dust, so to speak....you may have got some trash jammed in the machine, thus causing the "paper jam" error. It is not realistic to think that the power supply would produce a "paper jam" error unless you used a higher voltage than what was reccommended by the manufacturer. If the problem is not with the roller, back track your steps removing and re-installing everything that you changed...one at a time. Good Luck......

by ann777

Here's what HP has listed for a 13.x error in the 4Si or IIISi :

Media is not picked up, or media is jammed in the printer -- check and clean the entire paper path.

Media is in the Duplex unit. -- Check the paper input path and paper re-feed from the sensor PS2 duplex unit.

A sensor malfunction has occurred. -- Check the PS4 or PS5 in the duplex or switchback, respectively.

An output sensor malfunction has occurred. -- check the PS7 in the output area Optional Power Stacker.
Check the registration area: fuser-exit sensor flag and sensor. -- Install a usuer maintenance kit (110 V - C2062A, 220 V - C2087A).

Good Luck!

by ann777

Probably considering that you cleared out some dust, I'd recommend that you make sure that none of the sensors got covered. Check the paper path thouroughly and clean it all out.

by grandhighdruid

Believe it or not, I found that a sensor contact to the DC controller was bent just enough to cause the problem. Even though there was a thick layer of dust, it miraculously didn't clog any sensors.

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