My Canon IR2420 is off

[Adex9]

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]

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]

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]

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]

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.

[teckat]

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.

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

what do u mean fail to print/scan ????/ u first said u had no power up on printer !!!!!!!!!!!


the iR2420D==FM4-0650-000//COPYBOARD/DUPLEX/2CASSETTE model

the iR2320N==FM4-0652-000//COPYBOARD/NETWORK model

the iR2320L, iR2318L==FM4-0650-000//COPYBOARD model

all use different IMAGE PROCESSOR PCB ASS'Y's