Tried cleaning rollers to no avail. Is it the duplexer
SOURCE: Roller
Try changing completely or at least first cleaning the glassy surface of the toner cartridge first. You can do it with a cotton swab by sweeping the black toner from the surface while manually turning the gear on the side of the cartridge.
SOURCE: Color Laser Jet 3800 leaving roller marks on paper
Pull out the fuser at the rear of the machine.
SOURCE: HP OJ 6310 - scan/fax feeder won't pull through
There are two types of jams.
Physical, A physical obstruction is preventing the paper from gettin through.
Timing, the paper does not reach a given piont in a given period of time.
Physical jams can be the easier of the two, look for anything out of place, check the lead edge of the paper, is it dented or damaged? if so line up the damage with the feeder open and see if you can locate the problem, it does not need to be a foriegn object, it could be a guide mylar that is damaged or out of place.
Timing are are where the original does not show any signs of damage, the machine just stops.
This can be caused by feed tires, feed motor or clutch, or sensors,
Check the condition of the rollers, rollers generally have a rippled surface, if the rollers are bald and or have become concave. they are worn out.
Clean the rollers with a rubber cleaner or alcohol, clean the paper path with alcohol, check for sticky areas, adhesives from post its or signature flags.
Clean the scan glass with a good glass cleaner.
Blow out sensors with compressed air (Computer Duster), if sensors have an actuator arm, ensure the arm is in place and moves freely.
Give this a try.
Hope it is of some help.
Ed
SOURCE: HP Photosmart C6150. Rollers do not pick up paper
Remove the rear cover a reallly scrub the black rollers with isopropyl alcohol. Scrub HARD
SOURCE: hp deskjet 6122 paper feed
Try putting Isopropyl alcohol on the feed rollers. These rollers become hard and smooth with time and cause all sorts of paper feed problems. You can find isopropyl alcohol at any drug store(it is rubbing alcohol).
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