[Misc] My Canon IR2420 is off

[Adex9]

Hello all,

After about 2 months without using it, my copier is not power on again.
What could be the problem ?
I need your help even if i could have a link to download the shematic diagram of all the PCB.
Rgds

[Iowatech]

Re: My Canon IR2420 is off

Check the power cord to make sure it is secure where it goes into the back of the machine. Also, maybe make sure the outlet the machine is plugged into is providing the correct amount of voltage.
Unfortunately, it has been years since I've worked on Canon equipment, so if that doesn't work I'm completely out of ideas.
Good luck.

[teckat]

Re: My Canon IR2420 is off

Hello all,

After about 2 months without using it, my copier is not power on again.
What could be the problem ?
I need your help even if i could have a link to download the shematic diagram of all the PCB.
Rgds

================================================== =======
Power supply rating 120/230 V
When the main power switch (SW1) is turned on, AC power is supplied to the low-voltage power supply circuit in the power supply PCB.
The low-voltage power supply circuit supplies +3.3 V, +5 V, and +24 V to operate the machine.
+24 V is supplied to the motors, fan, electromagnetic clutch, solenoid, etc. +5 V and +3.3 V are supplied to the sensor, etc.
There are two types of +24 V voltages: +24 V which is normally supplied from the low voltage power supply and +24 VR which is cut off when the front cover or the left door is opened. The +24 VR also plays the role of a door open detection signal (DOPEN). This signal allows the CPU to detect that the front cover or the
left door has opened.

Power supply PCB = Generates DC power from AC power.
Option power supply PCB (option) = Generates DC power from AC power for the options.
Main power switch (SW1)= Supplies AC power to the power supply PCB.
Front cover switch (SW2) = Detects opening/closing of the front cover and cuts off +24 VR.
Left door switch (SW3)= Detects opening/closing of the left door and cuts off +24 VR.

Protective Mechanisms

The power supply PCB is provided with an overcurrnet/over-voltage protection function to automatically cut off the output voltage when a trouble such as a short
circuit occurs on in the load.
When the overcurrnet/over-voltage protection function is activated, turn off the main power switch, solve the trouble with the load, and then turn on the main power
switch.
Further, the power supply circuit has two fuses which blow to stop power supply when an excessive current flows in the AC line.

================================================== ================================================== ==================
The machine possesses 2 power switches: main power switch and control power switch. Normally (i.e., unless the machine is in a sleep state), the machine will be
supplied with power when you turn on its main power switch.

check if Front Cover or Left DOOR SWITCH is functioning
like posted>
u need to check AC OUTLET> then check if printer is outputting the AC> Then check your DC input/output
- Check whether the power cord is plugged in the outlet securely.
- Check whether the specified AC voltage is applied to the outlet.
- Check whether all outer covers are attached.
- Check whether the main power switch and the power switch on the operation pane are turned on.
- Check whether no fuse on PCBs is blown.

[Adex9]

Re: My Canon IR2420 is off

Can someone provide me with the power supply PCB's shematic diagram ?

[teckat]

Re: My Canon IR2420 is off

Can someone provide me with the power supply PCB's shematic diagram ?

==================

your lucky day------------

[Adex9]

Re: My Canon IR2420 is off

Thanks a lot Teckat !!!!
God bless you

[Adex9]

Re: My Canon IR2420 is off

Hello all,

The circuit diagram i received from Teckat is unusable; I need the electric shematic diagram of the power supply PCB to allow me check the electronic components and voltage. Thank you in advance.
Rgds

[teckat]

Re: My Canon IR2420 is off

Hello all,

The circuit diagram i received from Teckat is unusable; I need the electric shematic diagram of the power supply PCB to allow me check the electronic components and voltage. Thank you in advance.
Rgds

========================

there is no component description breakdown

u have a 120v or 230v power supply ?

FK2-8103-000 1 POWER SUPPLY ASS'Y 120V EQL
FK2-8102-000 1 POWER SUPPLY ASS'Y 230V EQM,EQV
FK2-8101-000 1 POWER SUPPLY ASS'Y 230V
EQS,EQR,EQN,EQW

[Adex9]

Re: My Canon IR2420 is off

========================

there is no component description breakdown

u have a 120v or 230v power supply ?

FK2-8103-000 1 POWER SUPPLY ASS'Y 120V EQL
FK2-8102-000 1 POWER SUPPLY ASS'Y 230V EQM,EQV
FK2-8101-000 1 POWER SUPPLY ASS'Y 230V
EQS,EQR,EQN,EQW

230v power supply

[teckat]

Re: My Canon IR2420 is off

230v power supply

Look for refurbished online,
Make sure your serial # front letters match up, _

There are companies who can test components on that pcb on their bench.

[Adex9]

Re: My Canon IR2420 is off

Look for refurbished online,
Make sure your serial # front letters match up, _

There are companies who can test components on that pcb on their bench.

Any URL ?

[teckat]

Re: My Canon IR2420 is off

Any URL ?

No repair/ new I believe /click on flag for language
imcopex Online-Shop

FK2 8101 For CAN Printer 2420 Original & New!-in LCD Modules from Electronic Components & Supplies on Aliexpress.com | Alibaba Group

[Lika]

Re: My Canon IR2420 is off

Look for refurbished online,
Make sure your serial # front letters match up, _

There are companies who can test components on that pcb on their bench.

Hi
Same problem here.

Followed your advice but unfortunately I forgot to test the old one on a working machine before buying another one.
Now I have two power supply PCBs that works fine on another machine but both fails to power on my ir2420.

May that be the issues with DC Controller PCB?

I appreciate your another advice in advance.

[teckat]

Re: My Canon IR2420 is off

Hi
Same problem here.

Followed your advice but unfortunately I forgot to test the old one on a working machine before buying another one.
Now I have two power supply PCBs that works fine on another machine but both fails to power on my ir2420.

May that be the issues with DC Controller PCB?

I appreciate your another advice in advance.

================================================== ===============

what have u tested >>>>your AC into> DC out to
Have u tested the three door switches

Outline (When the duplex unit is not equipped)

When the Main Power Switch (SW1)_? is turned on, AC power is supplied_? to the low-voltage power supply circuit in the power supply PCB.
The low-voltage power supply circuit supplies +3.3 V, +5 V, and +24 V to operate the machine.

+24 V is supplied to the motors, fan, electromagnetic clutch, solenoid, etc. +5 V and +3.3 V are supplied to the sensor, etc.
There are two types of +24 V voltages: +24 V which is normally supplied from the low voltage power supply and +24 VR which is cut off when the front cover or
the left door is opened.
The +24 VR also plays the role of a door open detection signal (DOPEN). This signal allows the CPU to detect that the front cover or the
left door has opened.

Power supply PCB == Generates DC power from AC power.
Option power supply PCB (option) == Generates DC power from AC power for the options.
Main power switch (SW1) == Supplies AC power to the power supply PCB.
Front cover switch (SW2) == Detects opening/closing of the front cover and cuts off +24 VR.
Left door switch (SW3) == Detects opening/closing of the left door and cuts off +24 VR.

----------------------------------------------------------------------------------------------
Outline (When the duplex unit is equipped)

When the main power switch (SW1) is turned on, AC power is supplied to the low-voltage power supply circuit in the power supply PCB.
The low-voltage power supply circuit supplies +3.3 V, +5 V, and +24 V to operate the machine.

+24 V is supplied to the motors, fan, electromagnetic clutch, solenoid, etc. +5 V and +3.3 V are supplied to the sensor, etc.
There are two types of +24 V voltages: +24 V which is normally supplied from the low voltage power supply and +24 VR which is cut off when the front cover or
the left door is opened.
The +24 VR also plays the role of a door open detection signal (DOPEN). This signal allows the CPU to detect that the front cover or the
left door has opened.

Power supply PCB == Generates DC power from AC power.
Option power supply PCB (option) == Generates DC power from AC power for the options.
Main power switch (SW1) == Supplies AC power to the power supply PCB.
Front cover switch (SW2) == Detects opening/closing of the front cover and cuts off +24 VR.
Left door switch (SW3) == Detects opening/closing of the left door and cuts off +24 VR.



POWER SUPPLY.jpg

[Lika]

Re: My Canon IR2420 is off

Hi.
After checking all PCBs on another working machine I found out that the image processor PCB was the issue.
At alibaba.com they say IR2318/IR2320/IR2420/IR2422 use Image Processor PCB Assembly FK2-8238-000 but my machine came with FK3-2127-00 01.
Before buying it i decided to install FK2-8238-000 from working machine. It powered the machine as usual but after scanning process
it fails to print.
I appreciate your advice in advance.