[Jamming] IR C2620 DADF-K1 Jams on the the third document every time

[xeroid]

Rollers look great, the first and second feeds are really crisp. It stops with a missfeed on the third document with the LE about an inch onto the glass. The document belt is hard to advance by hand but I cannot see anything wrong with the drives. I am not familiar with this model and am having trouble figuring out how it comes apart also. Any help would be greatly appreciated

[teckat]

Rollers look great, the first and second feeds are really crisp. It stops with a missfeed on the third document with the LE about an inch onto the glass. The document belt is hard to advance by hand but I cannot see anything wrong with the drives. I am not familiar with this model and am having trouble figuring out how it comes apart also. Any help would be greatly appreciated

there are two small pick-up rollers/ one large feed roller/ and a separation pad that sits under feed roller/
the sep pad is your issue= they become flat and worn & slick/ if u never changed before/ contact a Canon tech to show you/

there is a dip switch procedure on DF Controller to release pressure and make pad removal easy / if u try to remove without release, it is difficult to position back in correct spot

[mrfixit51]

Rollers look great, the first and second feeds are really crisp. It stops with a missfeed on the third document with the LE about an inch onto the glass. The document belt is hard to advance by hand but I cannot see anything wrong with the drives. I am not familiar with this model and am having trouble figuring out how it comes apart also. Any help would be greatly appreciated

Teckat types faster than I can ;-)

You have picked a real fun one,,, Not! Get used to working on this abomination.

here it is in detail:

Place document feeder upright, remove 2 screws and panel covering feeder board.
Place bit switches 3,5,6 in the on position and press the switch button.
Lower the document feeder and the feeder will lower into the feed position.
Open left side cover of the doc feeder, and remove 2 screws and black guide.
Remove the white grooved roller from the separation pad holder.
Remove the 2 screws and while holding down the pad, pull the pad holder assembly out,
this normally is somewhat of a struggle.
Pay close attention to the position of the feeder lifter mechanism on the left side.
Remove the white clip that is sticking up at an angle from this area.
Slide back the drive collar (to the left) that is slid over the shaft of the feeder mech.
Remove the feeder assembly (it is sholdered on its bushings) and replace the rollers.
In reverse order rebuild the feeder, playin close attention to the lifter mechanism,
to make sure it will lift the feeder assembly at rest.
Place a new separation pad in the black holder, don't forget the white grooved roller.
Place switches from first step back to off position.
Shove a single sheet of paper under the lowered feed roller assembly and press start,
or simply turn copier Off/On to reset position of entry roller.

[xeroid]

Thanks for taking the time to give me this good info. I really appreciate it. I'll let you know how it turns out

[D_L_P]

You probably saw the feed roll/sep pad comes out the left door and everything else will come out the bottom.

I think you are on the right track with the belt being hard to advance. Take it out and see if you can find what is binding it up.

[mrfixit51]

I would try the feed / separation rebuild before going after the feed belt. The feed belt has never caused me any problems, but I cannot count the number of times I have had to rebuild the feed/sep. The parts never make expected life.

If that does not resolve your issue, then pursue the feed belt...

[blazebusiness]

I've worked on a ton of these...MrFixIt is right. Those parts never ever make expected life. Love Canon machines but this is one of their worst feeders. What a dog!

[SCREWTAPE]

Check the flag arm to see its broken at the end. I've seen this cause jamming and feed issues. Also check the height.

[teckat]

Thanks for taking the time to give me this good info. I really appreciate it. I'll let you know how it turns out

to add on SCREWTAPE's procedure
here are some pics/ if u want to just tackle the Pad/ removing the roller is a little tricky// i use a good retractable spring hook for that clip SCREWTAPE is talking about
DADF..JPG
two screws red arrows

DADF1..JPG
POP OUT THAT WHITE ROLLER
DADF2..JPG
DADF3..JPG
When attaching or removing the
separation pad, push the left release
lever [1] in the direction of
the arrow shown here
DADF4..JPG
After attaching the separation pad, turn
bits 3 and 6 ON and press the push
switch.
The lifter will automatically descend
and stop three seconds later
DADF5..JPG
DADF6..JPG
D7..JPG
Remove the resin E-ring [1] that secures
the shaft and then move the gear [2] to
the separation roller side [3] and remove
the shaft pin [4].
D8..JPG
Pull out the shaft [1] in the direction of
the arrow and then remove the separation
roller [2].
D9..JPG
Paper feed related units > Removal of the separation roller > 1) to 3) )
1) Remove the resin E-ring [1] that secures
the shaft. Then pull out the shaft [2]
and remove the pickup roller [3].

[teckat]

D10..JPG
3 Paper feed related units > 3.1 Removing the separation pad )
1) Fit the separation roller into the pickup
unit, being careful of the position of the
bearing [1].
D11..JPG
Slide the coupling in the direction of the
arrow shown so that the notch [1]
meshes with the spring pin [2].
D12..JPG
Lower the separation holder [1] and
slide in the stopper [2].


The stopper should be attached
from above the separation roller
holder lever.
4) Move the stopper slightly up and down
to check that it is properly in the separation
roller coupling groove.

Make sure that the separation
roller holder [1] is below the
pickup roller joint [2].

[mrfixit51]

Great pictures! Wish I had had them back in the day! I finally had one of my fellow techs show me the parts removal procedure when I started up with my current employer 7 years ago. None of my Danka coworkers were able to show me this...

[teckat]

thinking of Danka, it's puts a chill up my spine,

the training i received on B&W Machine ADF's /DADF n' Sorters put me way ahead when I went to our Color Team in 1992 / Color tech's at that time new nothing about repairing those options

[SCREWTAPE]

In 1992, Color tech's at that time new nothing about repairing those options

This is so true.

[xeroid]

Thanks for all the great info. I was able to replace the sep pad easily as a result. However my problem is still not resolved. I went to check the sensor flag at the rt exit area and discovered it was installed 180 out. when I repaired that the paper would go further but crash into a white clip in the middle of the exit diverter. unable to easily see how it was supposed to be installed I simply removed it and now the paper gets an inch and a half out of the exit and jams. It appears someone has messed with this thing and it is not right. It is much more difficult to find problems with mis reassembly than normal natural causes. I need an SM and PM now I think.

[teckat]

Thanks for all the great info. I was able to replace the sep pad easily as a result. However my problem is still not resolved. I went to check the sensor flag at the rt exit area and discovered it was installed 180 out. when I repaired that the paper would go further but crash into a white clip in the middle of the exit diverter. unable to easily see how it was supposed to be installed I simply removed it and now the paper gets an inch and a half out of the exit and jams. It appears someone has messed with this thing and it is not right. It is much more difficult to find problems with mis reassembly than normal natural causes. I need an SM and PM now I think.

check your PM/

PART U REMOVED IS NEEDED