Ir 6020i background

[Desert Rat]

This machine has about 670K on the meter and has been installed for about a year. When I first got it, it was throwing
E0061 codes. The wholesaler sent me another potential sensor which did not fix the problem. Hytec was able to
help me, it turned out to be the laser beam pitch was jarred in shipping. So I replace the laser unit. It has been running
well till now.
I polished the drum and installed the brown wires with blue cleaners before installing last year.
This unit barly does 10K per month.
So far I have checked and cleaned the chargers and inspected the dv unit. The pretransfer charger had
some toner in it but nothing significant. I did turn potential sensor off, I do not remember if I cycled the
power after that. But it did not seem to affect the problem.
What is the most common problem to cause background. Just a slight gray.
No I did not run any test prints. Did not think to do that. But the machine is on a network and is used
most of the time this way.
I will be seeing this unit again in the next day or two.
The mag roller looks good, a dull finish under an even coating of toner.
How often do the drums fail early on this model?

Thanks

DR

[charm5496]

Re: Ir 6020i background

drums usuallly last 1.5 to 2 million depending on the stock and toner coverage. Do you think they might have stuck the wrong toner in the hopper at some point? Could be another bad laser too. Hopefully Hytec gives a warranty on their parts.

[Desert Rat]

Re: Ir 6020i background

Charm5496,
Thank you for your interest. If Hytec does have a warrenty it would have to last about a year.
I would have to check with them. May be I could change the laser power to see if it will
affect the problem. Otherwise I will replace the primary corona wires and polish the drum.
The book mentioned something about is the erase lamp on all the time. How does one
check this without having the toner hopper plugged in? Must be an extention harness
somewhere I could install for such a test.
I supply the toner for this machine. Most of the time I am using OEM toner, but have used
Precision rollers toner in the IR5000/6000 series for a couple of years or more with no trouble.
I know that does not completly eliminate it, but it puts it low on my list of suspect items.
I really don't want to have to clean all that toner out either, unless I'm sure that will fix it.
They do have an IR5020 in the other room, I suppose I could swap DV units, right?
I remember looking at the 6020 a couple of weeks ago and the print was very bold. I could not
get the 5020 to match it.
I have been working on this model for a couple of years but still feel there is a lot I do not know
about this unit as far as the copy quality. Usually it's very good, just change the wires every
500K and polish the drum.
I will see if I can get more info from the machine while it runs.


Thanks

DR

[charm5496]

Re: Ir 6020i background

the quick and easy way would be to swap DV units and then troubleshoot from there. You could try to restring the primary and adjust heigth or check laser power. I would also check door specs to make sure something else wasn't changed before you put it at the customers location. There might have been an issue that you are not aware of.

[Desert Rat]

Re: Ir 6020i background

I like quick and easy. I know this account does not like having both machines tied
up at the same time but I may be able to do it for a short time.
As for the door specs, I have changed some of them from the previous service.
I have the potential sensor that it came with, I will put that back in, seeing as
I was supposed to change the board and did not.

Wait'n see

DR

[Desert Rat]

Re: Ir 6020i background

I am on site now. I see that there is not any margins. The background is edge to edge. And top to bottom.
How can that erase lamp be checked in the machine?

DR

[teckat]

Re: Ir 6020i background

I am on site now. I see that there is not any margins. The background is edge to edge. And top to bottom.
How can that erase lamp be checked in the machine?

DR

in service mode:

COPIER>FUNCTION<MISC-P>>PRE-EXP
Use it to check the activation of the Pre-Exposure LED.
Using the Mode
1) Select the mode item, and press the OK key.
• The Pre-Exposure LED will remain on for about 3 secs and will turn off.



if it does not come on/ see below

Pre-Exposure LED (LA1)
1) Press the Start key. Does the state of bit 4 in service mode
(COPIER>I/O>DC-CON>IO-P15) change from ‘0’ to ‘1’?
YES: Check the wiring from the DC controller PCB to the Pre-Exposure
LED; if normal, replace the Pre-Exposure LED.


Pre-Exposure LED (LA1), DC controller PCB
2) Set the meter range to 30 VDC. Does the voltage between J103-A3
(+) and J103-A4 (GND) on the DC controller PCB change from 0 to
24 V?
YES: Check the wiring from the DC controller PCB to the Pre-Exposure
LED; if normal, replace the Pre-Exposure LED.
NO: Replace the DC controller PCB.

[Desert Rat]

Re: Ir 6020i background

OK,
What is the trick to checking voltages on these tiny little connectors? I pulled the connector and saw only
1 row of pins on the "A" but saw A1 & A2 on the "A" side. Does A2 provide the test point? If not how do
you get something in there next to the wire? I'm using the smallest staple I can find. Now I did get the staples
into the A2 side and made a copy, but my meter acted as though it was not connected to anything.
Usually if I am on the TP and there is no volts, my meter will at least be steady.
Whats the trick?


DR

[teckat]

Re: Ir 6020i background

No trick/ there are meter connectors for this type connector/ know it's a pain
J103.JPG

[Desert Rat]

Re: Ir 6020i background

teckat,
That is where I was trying to get the reading, I just did not have anything small enough
to get in there by the pin. I did see the signal change on the I/O screen. So I went
ahead and ordered the LED lamp. This will give me some time to get over my cold.
I need to look around and see if I can find an old harness to use as an extention
harness to make this easier than looking through a magnifying glass to see
what I am doing.

Thanks for your help

DR

[Desert Rat]

Re: Ir 6020i background

Techkat,
I am back on this call now, and I have replaced the lamp with no change.
A friend here said it might be bad toner or aftermarket toner.
Guilty I did put Katun toner in this unit.
So I took the hopper and dv station to my shop at home and cleaned
them out. I took the wensors out of both units before vacuuming
or using the compressor....
Now I am on site and have installed both units and put some the real
toner in, GPR4, and I have ran the install 3 times and each time
it ends with an error of E00020.
I can watch the gears on the hopper turn. The little motor on the bottom is turning.
I took the hopper out and removed the motor checking for binds. None found.
I looked into the spout that supplies toner to the developer station and it
is clean. The larger white gear for the stir is also turning.
The shutter for the developer station opens when the hopper is installed.
How many times does one have to run this to get toner started into the
developer unit?

DR

[teckat]

Re: Ir 6020i background

Is the shutter releasing member of the hopper mouth mounted correctly
to the developing assembly locking plate?

Is the developing assembly being provided with toner?
check the Toner feed screw --in dev.

is there toner in dev unit-
developing assembly toner sensor

toner is supplied from the hopper to the developing assembly (takes about 8
to 10 min).



The toner inside the developing assembly is monitored by the developing assembly toner sensor (TS1); when it drops below a specific level, the developing assembly toner level signal goes ‘0’ and is sent to the DC controller PCB.
When the DC controller PCB detects the developing assembly toner level signal for 0.3 sec or more, the hopper motor drive signal will be issued so that the hopper will start to supply toner.
The supply of toner stops when the toner inside the developing assembly reaches a specific level and, as a result, the developing assembly toner level signal ‘1’ is detected for 0.7 sec or more.
The level of toner inside the hopper is monitored by the hopper toner sensor while toner is supplied by the hopper motor or toner is being stirred.
When the toner inside the hopper drops below a specific level, the hopper toner level detection signal goes ‘0’. When the DC controller PCB detects the signal for 1.9 sec or more, the machine will indicate the Add Toner message on its control panel.

[Herrmann]

Re: Ir 6020i background

I would suggest you to check out, if your problem is charge or laser related. Tape a part of the dust proof glass with black tape, make a copy and look, if the background in the taped area persist.

Ps.: just read about your toner problem: you can check the funktion of the sensor in service mode Copier>i/o>dc-con>io-p02>bit9, while the value 0 means no toner detected

Bit9 means toner sensor in the dev unit, bit 10 is toner sensor in the hopper unit

[teckat]

Re: Ir 6020i background

An empty dev needs to be primed
Function > Install > Toner-S

think poster mentioned > did install 3 times


pull out dev.unit to inspect

[Desert Rat]

Re: Ir 6020i background

Problem solved,

Here's what happen. When I cleaned out the hopper, I had to take some of the
stuff off the side. Both motors, a plate, some loose gears and a pin.
I got all this back on ok except for the one flat gear above the small
motor in the lower right, M10.
That gear has a collar on one side that spaces the gear off the side
of the hopper about 1/4". I had it on 180 out. So this gear did
not transmit movement to the augar gears that bring the toner
out of the hopper to the developer station like it should have.
Flipped the gear around now it is off the hopper and meshes
with the other gears.
Loaded the DV station with toner and made some nice copies.
The mag roller looked good. Even & dull looking.
Turns out the toner I put in this machine awhile ago was
bad. It was generic toner. I forget who I got it from.


Thanks for all the suggestions, this board is one of my best resources.


DR