Hp 3700 giving 13.20 error but cant find damage or paper scraps.

Well known issue and easy fix

Error Code '0x610000f6' Message Displays for HP Photosmart ...

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Error Code '0x610000f6' Message Displays for HP Photosmart Plus All-in-One Printers (B209a, B209b, and B209c) · Issue · Solutions · Solution one: Turn the printer ...

Different Ways for How to Fix HP Printer Error 0X610000F6

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HP Printer Error 0X610000F6 also known as Carriage Jam Error occurs very often in the Photosmart HP Printers. When a jam occurs in the printer due to paper scraps or due to any other reason, the printer stops working and it doesn't print any document.

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It could be a damaged or defective jam sensor but more likely a tiny scrap of paper stuck in an inaccessible part of the paper path. You may have to open up as much of the paper path as possible and shine a bright light inside to locate the culprit.

Most likely the sensor in the back of the paper tray slot is damaged. You can try and find a replacement part or possibly a damaged printer that you can salvage that part off of. However, most of the time HP considers small inkjet printers to be "throw away" type and don't offer much in the way of parts or troubleshooting.

Your feeding assymble is broken. Unfortunaly you cant to much unless you got a machine scrap like that and use its parts.

There is a line of sensors along the paper path, if any of these are obscured by even the smallest scrap of paper you will get the messasge, re check the paper path again it only needs a scrap of paper, if you can spot any of the sensors give them a blow with some compressed air (paper dust build up), last but worth a try unplug for 2 minutes to allow residual power to drain and then try power up and see if the message has cleared

1 Power  swich off/on
2 Open and close front cover twise

13.20.00 can be also caused be a jam near the fuser (the part of the printer that gets hot to make the toner stick to the paper). Remove the toner cartridge and take a look for small scraps of paper along the whole path. Also open the door on the back of the printer and look for paper scraps from there. If you see paper stuck in the fuser, do not use anything sharp to remove it, be careful not to scratch the surfaces.

50.1 error is usually a fuser low temperature error. The thermistor (electronic termometer) that controls high and low temperature is either obstructed, damaged or the heating element inside the fuser has been brokem or damaged. Carefully remove and inspect the fuser. If you have no obstructions then the fuser will have to be replaced.

Here's a link to the full service manual in PDF for free. Good luck.

http://www.feedroller.com/Store/Service%20Manual/Color%20LaserJet%203500-3550-3700.pdf

All 59.XX error codes have to do with a motor failure of some type. I don't know anything specific about 59.0A but 59.A0 means that either the drum motor failed to start or something bad happened while it was rotating. If you feel like tackling it yourself you can try reseating all the connections to the drum motor and the DC controller board. Other possibilities could be a bad drum motor or a bad DC controller. HP says you can also get this message when the tranfer unit is missing or improperly installed.

If you don't feel like tackling it yourself then it's off to a repair shop unless it's under warranty, in that case call HP.