[Misc] iR5570 Revival

[V-P]

2 days ago, we got a "iR5570 + fin" for a very good price.
Machine has done approx 1.5 mill

I have spent yesterday & today fixing a lot of errors.
Like:
Primary fan cable was cut & fan dead --- Replaced fan + new wiring
Fixing unit was a mess ----Replaced rollers + bushings + thermistors
Continuous e004-0103 ---- fixed
No communication with reader - cable changed
DADF jam (turn on/off) - sensor init + cleaning + replacing
All paper rollers replaced. Feeding belt cleaned.
A lot of cleaning inside the machine.
Latest DC + RC flashed.


There is one issue that is making me angry.
A paper "A4 long edge" skewing before fixing unit.
It happens one in 10 or 15 sheets. What is irritating is that the skewing happens in both horizontal sides

Known facts:
This issue does NOT happen if:
1 ) Print or copy A3 (from cassette 3 or 4)
2 ) Print or copy from manual feed tray

So I deduce that somehow-somewhere during the vertical path there is a problem ?

I have cleaned everything there.

I made some photos

rollers.jpgdistort-03.jpgdistort-01.jpgdistort-02.jpgplastic-crack.jpg

Any ideas ?

[D_L_P]

The guides to the right of the registration rollers can get pinched together and cause the crooked feeding. I usually fold a piece of paper in half to check the clearance. Very common issue, its easy for someone to rest their hand on that guide while clearing a jam.

[Brian8506]

I had that exact problem and those guides were bent just enough to cause that. BTW now you know why you got a good price.

[vigour]

I think your problem is on the transport.
Belts might be slipping, (clean the underside), or stretched.
A4 has to depend on the belts to get to the fuser, but A3 is still being pushed by the reg when the lead edge gets to the fuser.

Nice deal. They put all the bad parts from other machines in yours.
Anyway you are almost there

[Matoku]

You can check the registration roller return spring on both edge of them. sometime one of it misplaced, broken or missing can cause this problem.

good luck

[V-P]

The guides to the right of the registration rollers can get pinched together and cause the crooked feeding. I usually fold a piece of paper in half to check the clearance. Very common issue, its easy for someone to rest their hand on that guide while clearing a jam.

Yes you are right. The guides were responsible. I somehow adjusted by hand and now it is better. I get a jam ecah 50 or 100 sheets.
But that still is not enough. Is there some "more scientific" way of adjusting these guides ?

Or just bend the metal by hand till you are satisfied ?

[teckat]

believe it or not, metal that is bent from it's original position ,and then re-bent back to resemble it's original look,will eventually return back to the bent position.

because the metal atoms have been permanently displaced from their original location and that information has been permanently lost to the bent piece

[Brian8506]

And that makes the "scientific answer" replace the plates

[V-P]

I will try another option.

Bend the other way !!!

So at the end - it will come back to original position..... lol

bend.jpg

[V-P]

I am facing smth else.

Although machine shows no error, I saw that Primary charging fan- FM2 is not rotating at all.

How come ?

[teckat]

I am facing smth else.

Although machine shows no error, I saw that Primary charging fan- FM2 is not rotating at all.

How come ?

check all fan operations/ONE bad TWO STAGE fan could cause another to malfunction.

probably stuck=check connector J103 DCPCB

u would receive
E824 There is a primary charging cooling fan error. 0001 The primary charging cooling fan stop signal has been detected for 5 sec or more even when the primary charging cooling fan is on.
- Check the connection of the connector.
- Replace the fan.

P005
0 separation fan stop detection signal 1: stop
1 =primary charging cooling fan stop detection signal 1: stop

P013
0 separation feed fan (half-speed) ON signal 1:ON
1 separation feed fan (full-speed) ON signal 1:ON
2= primary charging cooling fan (half-speed) ON signal 1:ON
3= primary charging cooling fan (full-speed) ON signal 1:ON

[gensys]

I am facing smth else.

Although machine shows no error, I saw that Primary charging fan- FM2 is not rotating at all.

How come ?

The functions of the main motor control circuit are as shown in the following table, and its block diagram is shown in the following figure:
Description 24V is supplied by the DC controller PCB from the DC controller PCB (MAIN_M_ON)
Power supply drive signal

Operating/driving
Control
Collecting toner feedscrew Cleaning assembly Registration roller Manual feed pickup assembly Left deck feed roller 2 Developing assembly unit
Turning on/off the motor Controlling the motor to a specific speed
Error detectionCheck 24 V

[teckat]

The functions of the main motor control circuit are as shown in the following table, and its block diagram is shown in the following figure:
Description 24V is supplied by the DC controller PCB from the DC controller PCB (MAIN_M_ON)
Power supply drive signal

Operating/driving
Control
Collecting toner feedscrew Cleaning assembly Registration roller Manual feed pickup assembly Left deck feed roller 2 Developing assembly unit
Turning on/off the motor Controlling the motor to a specific speed
Error detectionCheck 24 V

that has nothing to do with the primary fan operation

[gensys]

I yet did not meet the spoiled fan, it or the cover not densely sits on the case or connector contacts
But when the fan does not work it always the fuser unite error produces

[V-P]

check all fan operations/ONE bad TWO STAGE fan could cause another to malfunction.

probably stuck=check connector J103 DCPCB

u would receive
E824 There is a primary charging cooling fan error. 0001 The primary charging cooling fan stop signal has been detected for 5 sec or more even when the primary charging cooling fan is on.
- Check the connection of the connector.
- Replace the fan.

P005
0 separation fan stop detection signal 1: stop
1 =primary charging cooling fan stop detection signal 1: stop

P013
0 separation feed fan (half-speed) ON signal 1:ON
1 separation feed fan (full-speed) ON signal 1:ON
2= primary charging cooling fan (half-speed) ON signal 1:ON
3= primary charging cooling fan (full-speed) ON signal 1:ON

I did some checks and:

005
1 =primary charging cooling fan stop detection signal = 0
P013
2= primary charging cooling fan (half-speed) ON signal = 0
3= primary charging cooling fan (full-speed) ON signal = 1

If I remove the cable of the FAN, than the machine shows 824-001.
Probably I will need to replace the whole wiring from FM2 to DC Controller, since DC Controller was replaced

I am also facing a jam from DADF.
Some A4 sheets pass normally than jam 0001.
I can see the leading edge of the paper hits the stopper and curls a bit.
Looks like the stopper "not being fast enough" is causing this.
I have already replaced (pick-up, feed, roller & pad)
I did Sens-Init. I am attaching a photo.
stopper.jpg