HP IIP+ - Still have accordion fold at bottom

My HP IIP+ started accordion-folding the bottom 2 inches of each
page, accompanied by a crunching sound. Printing is all OK. Per the
suggestion of Mike S, I went to fixyourownprinter.com and got the
"top output accordion kit" K06 and installed it. But the problem did
not go away. Now what next? I would be grateful for assistance here.
Thanks! RD2

RD2 wrote:
My HP IIP+ started accordion-folding the bottom 2 inches of each
page, accompanied by a crunching sound. Printing is all OK. Per the
suggestion of Mike S, I went to fixyourownprinter.com and got the
"top output accordion kit" K06 and installed it. But the problem did
not go away. Now what next? I would be grateful for assistance here.
Thanks! RD2


This may help....

Error 13 Paper Jam
Paper jams can occur in 3 places: Entry, registration and exit.
If the paper isn't picking up out of the paper tray, visually inspect
the pickup roller. If it looks shiny, replace it. You should also
replace the separation pad as they work together. On the 4L/4P/5P/6P the
pickup roller has a plastic shaft that breaks. You'll have to replace
the whole pickup assembly. This requires major disassembly of the
printer. Check our printer repair kits for your model printer. If you
don't see it listed, email us.
If you have an HP 4/4+/5 with an optional 500 sheet feeder that's
jamming, check the balance knob adjustment. Center it with a full ream
of paper for proper operation.
If the paper is jamming at registration or anywhere between pickup and
exit it could be a number of things. Check the paper path for torn bits
of paper or label residue. On the II/III series, remove the metal
registration guide plate (2 screws) and check underneath it. If the
pickup rollers are moderately worn, the paper will stop just short of
the registration roller. On the 4L/4P/5P/6P remove the screw holding the
oblique roller assembly (Inside front of printer) and pull out and
inspect the assembly and the area under it. On the HP 4/4+/5 pivot up
the metal plate and check underneath it. Check the roller assembly on
the left side for torn scraps of paper (a flashlight or torch is necessary).
Make sure paper cassettes are firmly seated, corner tabs aren't bent.
Some trays have lifting springs that could pop out if tray has been dropped.
On HP IIP/IIP+/IIIP printers if the paper scrunches up at the toner
cartridge .
Check your software settings in the program you are attempting to print
from. Do you have the correct paper size specified? If you have a
different paper size than what is in the tray, you'll get a paper jam.
Exit jams are frequently caused by exit sensors. These sensors are
typically mounted on the fuser assembly or adjacent to it. They are
plastic arms that block and unblock an optical sensor. The arms can get
stuck or knocked out of place when clearing paper jams. The optical
sensors can also get dirt blocking the photo cell. Clean the sensor and
check for free movement and proper installation of the sensor arms.
On HP II/III series exit jams are mostly caused by worn gears. The best
way to troubleshoot this is to defeat the door interlock. Press down on
the arm on the top right of the fuser. Initiate a test page. While
holding down the arm, press one of the metal cartridge detect switches
just below the door interlock. Watch the movement of the gears. You will
get a 51 error because the door is open. Recycle power to get rid of
error. There is an arm gear on the lower right of the fuser that can
shed teeth. There is also a 14 tooth gear below the large gear on top of
the fuser. You can also manually rotate the large gear and check for
binding or crunching. If that happens, then replace the 14 tooth gear.
On the door, there are some delivery coupler gears that mate with the
fuser and drive the exit roller. Check the gears for excessive wear.
Replace if necessary. If the paper gets almost all the way out and jams,
replace the exit roller or the exit roller assembly. If the error occurs
after fuser replacement, check and see if the connector on the left of
the fuser is properly mated with the one in the printer.
On HP IIP/IIP+/IIIP printers if the paper has accordion folds on the
bottom and jams on exit. On HP 4/4+/5 printers the most common cause of
exit jams is the exit assembly. Exit jams in the fuser can be caused by
a broken fuser drive gear or a broken gear on the fuser. Remove the
fuser and check the gear inside the printer for broken teeth. Manually
turn the gears on the fuser and check for smooth operation. Check the
paper exit sensor arm for proper mounting and free movement.
Check to make sure the rear door is closed on the printer. Open doors
can cause 13 paper jam indications.
On the 5L/6L check the registration sensor arm below the pickup roller.
Also check the exit sensor arm (bottom center of the fuser). These arms
frequently get stuck or dislodged clearing paper jams. On these
printers, if you are experiencing frequent paper jams.

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