ir3300 cassette 1 not lifting

[jonezy999]

Hey all, just wondering if anyone can point me in the right direction with this machine. My problem is just as the title of this post suggests, tray 1 doesn't lift. I dont have much experience with Canons in general. I had the paper feed assy out of the machine last week and compared it to the lower feed assy. Couldn't see anything that stood out as a problem. I guess I'm just asking for any common problems that have been discovered as a starting point. I've noticed if I manually lift the tray from underneath, with the 2nd cassette out, the 1st cassette will feed as normal, until the paper pick up tire doesn't come in contact with the paper. From what I can gather, it is this pick up tire in the extended down position that initiates the tray lift mechanism.

Any suggestions welcome, no matter how simple. Thanks in advence.

Jonezy

[teckat]

Hey all, just wondering if anyone can point me in the right direction with this machine. My problem is just as the title of this post suggests, tray 1 doesn't lift. I dont have much experience with Canons in general. I had the paper feed assy out of the machine last week and compared it to the lower feed assy. Couldn't see anything that stood out as a problem. I guess I'm just asking for any common problems that have been discovered as a starting point. I've noticed if I manually lift the tray from underneath, with the 2nd cassette out, the 1st cassette will feed as normal, until the paper pick up tire doesn't come in contact with the paper. From what I can gather, it is this pick up tire in the extended down position that initiates the tray lift mechanism.

Any suggestions welcome, no matter how simple. Thanks in advence.

Jonezy

M1 drives the Cassette lifter up

Check the on signal for the Main Motor from the DC controller @ J308, Pin 9. If the signal is present, try to turn the motor on in Part Check. COPIER>FUNCTION>PART-CHK>MTR-ON code 1 for M1. If the Main Motor does not turn on replace M1.

LF.JPG
The paper inside the cassette is held up by the lifter, and remains in contact with the
pickup roller when pickup takes place:
(1) The pickup motor (M2) is used to drive the pickup roller. The pickup roller is moved
down in relation to the feeding roller, and is brought into contact with paper only when
pickup takes place.
(2) The pickup roller is moved down when the cam released by the DOWN solenoid
(SL1) rotates by the drive of the main motor (M1).
The feeding roller and the separation roller serve to make sure that only one sheet of paper
from the pickup roller is sent to the feeding path; the No. 2 registration roller and the
vertical path roller then forwards the paper as far as the registration roller.
The drive for the vertical path roller and the No. 2 registration roller is provided by the
pickup motor (M2) through the vertical path clutch (CL1).
The registration roller is driven by the registration motor (M9).

Jam History
history of jams that occur inside it, and the history may be
checked in service mode.
COPIER>DIPLAY>JAM
Use it to indicate jam data.
COPIER>FUNCTION>JAM-HIST
Use it to clear the jam history.

Operation of the Cassette Lifter

Moving Up the Lifter
When the main power is turned on with the cassette set in the machine or the cassette is
slid in while the machine is in standby state, the pickup roller shaft moves down to push
down the lifter trigger lever.
The cam is released when the pickup roller shaft pushes one side of the lifter trigger lever,
and the drive from the main motor (M1) move sup the lifter.
When the pickup roller remaining in contact with the paper surface moves up to a specific
height, the movement of the levers cause the pickup roller shaft to return to the uppermost
position to end the upward movement of the lifter.


PU.JPG
Releasing the Lifter
The lifter is released mechanically when the cassette is slid out. When the machine is in
standby state, the lifter gear is held in place by the lifter gear retaining lever. When the cassette
is slid out, the lifter gear retaining lever is freed, thereby allowing the lifter to move
down.
If the main power is cut while the lifter is moving up, the lifter is held up
with the claw used to move up the lifter remaining in contact with the lifter
gear; the lifter will not be fully released in this condition, and damage can
occur if the cassette is forced out. Be sure to turn off and then on the main
power so that the machine will be in standby state whenever the cassette
must be slid out.

[jonezy999]

Thanks Tekcat. Will let ya know hoiw I go.

[Canuck]

Replace the lifter gear,lifting lever and retaining lever. This is common on these machines when they get alot of copies on them. I've also seen the drive gear not "walk up" into position when switching from cassette 2 to cassette 1. I hope you are good at puzzles because its a science project to replace them...

[blackcat4866]

Yes, this is a mechanical wonder. The first time I did sketches along the way. If you've got a digital camera take a bunch of photos along the way.

This document was made up for the iR330, but there are very few differences:

[Simons]

I know a guy who will fix it for 75 bucks . I think he is in south dakota. You pay shipping both ways. Pm me if ya want his address. He is currently a Tech at an Authorized dealer. I have fixed one and gave up on the rest. Not fun to do in my book.

[Matoku]

yeh, I agree. this is not easy job to reassemble this unit. openm is so easy. have a nice day on it.

[Canuck]

Yes, this is a mechanical wonder. The first time I did sketches along the way. If you've got a digital camera take a bunch of photos along the way.

This document was made up for the iR330, but there are very few differences:

I used to carry a set of color prints of pictures i took during disassembly. I met the guy that designed that pick-up assembly(also,ir330,etc) from Japan. Wanted to slap him. I still remember him vividly...he had a haircut like Bazooka Joe!

[jonezy999]

I used to carry a set of color prints of pictures i took during disassembly. I met the guy that designed that pick-up assembly(also,ir330,etc) from Japan. Wanted to slap him. I still remember him vividly...he had a haircut like Bazooka Joe!

He deserves more than a slap. This thing is a pig. Its taken me about an hour of starring at this drive assy just to get a picture of how its supposed to work.
Anyway, will post back a bit later with results. Boss is getting the shits with the amount of time i have spent on this box.

[jonezy999]

Thanks for all the replies. Turned out to be a broken leaf spring.
@ Blackcat: those diagrams were brilliant, where did u find them?
@ Tekcat: I think this manual is almost as confusing as this drive assy. Maybe i have read too much into it. Check out blackcats post above.

Thanks once again, good day Sirs.

[Canuck]

Canon wants big bucks for a new one

[teckat]

Canon wants big bucks for a new one

call a stripper warehouse

[blackcat4866]

Thanks for all the replies. Turned out to be a broken leaf spring.
@ Blackcat: those diagrams were brilliant, where did u find them?
@ Tekcat: I think this manual is almost as confusing as this drive assy. Maybe i have read too much into it. Check out blackcats post above.

Thanks once again, good day Sirs.

I took sketches then drew it up in Paint. With each use of the drawings I'd make corrections, some major, some minor. I'm glad they helped. =^..^=

My best advice on repairs like this is to take your time and make sure everything is right the first time. If you rush, you'll only get to take it apart again, and again, and again, ....
My worst one took three re-assemblies before it actually started to work. =^..^=

[jonezy999]

Back again. Managed to get this pick up assy back into the macxhine last night and the tray is lifting. However the machine still thinks the cassette is empty. I think i understand this assy fairly well (better than I did 2 days ago anyway) but cant spot the problem here. The arm from the litfter plate moves freely and through the sensors without touching anything. Have tried swapping over the boards which contain the 2 height sensor with no luck. Is there a sensor check mode for these height sensors or a sensor calibration type mode like with the adf?

[blackcat4866]

Most common on failure on these is the ratches that lift the paper. Usually it's just a few teeth that are damaged, so if you fill the paper to the top it will start to work again. If you empty the tray to a few sheets it will start to work also. Somewhere in the middle it will start to skip. The bottom one is very easy to access, and hardly ever fails.

Another possibility is that you forgot to plug in the PE sensor, or the flag isn't positioned properly. I've done it myself. =^..^=