Canon IR3300i Top Feeder Not Being Recognized

[teckat]

Thanks for illustrations. The DADF has a circuit board that J1 & J2 connectors plugs into. I understood this as the DC Controller PCB. The J1 & J2 plugs come from another PCB, which I understood was the reader controller PCB.

Bottom line is that the yellow wire on the 7 pin connector is not receiving the 5V DC that should be there. Am trying to ascertain if the power to that wire is being deprived by hardware issue or software.

Am not sure why when the DADF was observed this morning it was detecting a paper in the unit vs. no detection before. However, when restarted the printer, it is no longer showing any life, but the gray wire on the 7 pin J2 connector is at 5V now.

Am still leaning towards removing & replacing the circuit board that the yellow wire comes from & welcome any suggestions on service mode adjustments.

Gremlins.

Here is Circuit Diagram -Reader Pcb to DADF /use scroll bar below to view all of page-24vDC is supplied from Printer Main Power Supply

that seven pin connector interfaces from DADF PCB in to Reader Controller Pcb connector J404/ that is where u need to check voltage output u are missing
J4100.JPG
RC1.JPG

[dbmoylan@gmail.com]

Tested reader controller PCB terminal on the circuit board and reads same as J1. Pin for yellow wire is 0V. I understand that the reader controller PCB should be removed & repaired or replaced. Thank you.

[teckat]

Tested reader controller PCB terminal on the circuit board and reads same as J1. Pin for yellow wire is 0V. I understand that the reader controller PCB should be removed & repaired or replaced. Thank you.

Reminder

after performing an RCON clear on the machine.
There is a setting in service mode found in COPIER>OPTION>BODY> SENS-CNF which needs to be set to"1" for inch configuration. When performing an RCON clear, the setting changes to 0. This sets the machine back to AB-configuration which is a factory default setting. The steps to change this setting are located below.
Enter service mode

Copier>Option> Body
Select SENS-CNF and set it to 1 for Inch-configuration.
turn off & on to set in

+++
COPIER>OPTION>BODY
MODEL-SZ
Use it to select the mode of indication by destination and of the ADF original
size detection.
Settings 0: AB (6R5E), 1: INCH (5R4E), 2: A (3R3E), 3: AB/INCH (6R5E)

COPIER>OPTION>BODY
SCANSLCT
Use it to enable or disable the original size detection mechanism for the
ADF.
• When enabled, the scan size is determined in relation to the original
size.
Settings 0: off (default), 1: on

[Canuck]

WOW...................if you would have changed reader board would have saved a lot of headches.. First an ADF com error then a reader com error....whats in common? The labor time that was wasted farting around with this thing could buy a reader board. If it worked intermittently at least you could have tried to reseat reader board connectors. Its untouched!

[SCREWTAPE]

That's trouble shooting for ya.

[teckat]

WOW...................if you would have changed reader board would have saved a lot of headches.. First an ADF com error then a reader com error....whats in common? The labor time that was wasted farting around with this thing could buy a reader board. If it worked intermittently at least you could have tried to reseat reader board connectors. Its untouched!

brightidea.jpg

sometimes it stares u right in the face/ and u still don't believe it/ that's the world of troubleshooting

[blackcat4866]

Geez, I recall reading something about a reader controller board five pages back....
=^..^=

[SCREWTAPE]

I recall reading something about a reader controller board five pages back....

I even posted the Part number.

[teckat]

waiting for poster to e-mail me back with results

[SCREWTAPE]

waiting for poster to e-mail me back with results

Let's see.

[dbmoylan@gmail.com]

Teckat, Screwtape, guys . . . thanks. The resolution to my problem was that the reader controller PCB had some hardware problem that caused the DADF not to be recognized. The required 5V was not being sent through the yellow wire to recognize the DADF.

Will be sending board back for testing and repair.

Again, thank you.

[SCREWTAPE]

Hallelujah!

[teckat]

Teckat, Screwtape, guys . . . thanks. The resolution to my problem was that the reader controller PCB had some hardware problem that caused the DADF not to be recognized. The required 5V was not being sent through the yellow wire to recognize the DADF.

Will be sending board back for testing and repair.

Again, thank you.

Good Luck, hope it works out.

As u can see on Canon's old circuit diagrams they were very secretive on showing the color of signal wires, and the explanation in Service Manuals . Think it's a C.I.A thing.
Five volts DC is an essential supply for signals and operations/ many times those wire ties crimp those small wires, and cause many issues. it's like bending or having a crimp in a water hose, the flow is slowed down

[Canuck]

If it was interrmittent like you stated,i'll bet if you re-install the old one it will probably work. Glad its fixed

[dbmoylan@gmail.com]

Thanks guys for posts. The consistent problem was that the DADF was not being recognized, and the loss of the 5V on the yellow wire (as well as the originating terminal on the reader controller PCB) was consistent. 3 of the prongs are suppose to have 5V.

I am more concerned though about why the board failed in the first place. I understand these boards are not prone to failure.

Unit is working & monitoring now. Thank you.