Hi, I just turn on my irc 2620 and it is showing error E0000010004, some one suggested to clear it in the service mode, but I couldn't do it?

. you need to clear that error from service mode first.
with the copier turned on do the next secuence
press once aditional function
press 2 and 8 at the same time
press aditional function once again
when service mode appear on the screen select COPIER
then select FUNCTION
then select CLEAR
then select ERR and press OK in the lower corner of the screen
turn off the machine from main switch for a few seconds
turn on again and make copy test .
if problem persist replace the fixing heater.

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Hi . The second error indicates there is a temperature problem in the fixing unit. You need to clear that error from service mode first.
with the machine turned on Press the next:
Press aditional function once
Press 2 and 8 at the same time once
Press aditional function once again .
Service mode should appear in the screen . If doesn't repeat the secuence until it does .
Then in the touch screen
select copier
Select Function Select Clear
Select ERR and press ok in the lower corner of the touch screen .
Turn off the machine for a few seconds (5)
Turn the machine on . If problem persist that mean the fixing unit is defective

get into service mode
To get into service mode.....
Press *
Then 2 & 8 together
Then *
then choose COPIER
then choose FUNCTION
then choose CLEAR
then choose ERROR
then press OK
turn power off and on

The error code E020 refers to a density problem with one of the Drum Units. The sub-code 03b0 refers to one specific Drum Unit, of which
I'm not sure. I believe if you go into service mode and check Density, you'll see each Drum Unit listed there. You are looking for an average Density reading of +-2.5 for the Units. Don't get crazy trying to reach that value, but look to see which one is way off and that may be your culprit. Or maybe one of these other guys may be able to tell you which unit the sub-code is pointing to.

Enter service mode & clear all & restart.

Additional function > 28 > Additional function
Go to clear & select all.

enter service mode
steps:

* - 2+8 - *
copier
function
clear
err
ok

turn the copier off then on

end

the cause of the problem is ,the transfer belt is not rotating properly ITB rollers must cleaned throroughly (cleaned by isopropyl alcohol) to prevent slippage of transfer belt that causes mis alignment /misregistration of color,but copying BW is ok,In other words ITB unit needs servicing ,Run also gradation adjust QUICK and FULL adjust (for IRC 3200)

Hello sir; The error code you display 803 & 805 could be come from same problem, both all are composite board 24 volt supply problem, replace composite board will take care this problem. good luck.

A irc3200 Service Manual will give you mostly the same info - there are very minor differences. You can get one here

You have a fuser problem. You didn't specify a machine but if it is the irc/clc3200/3220/2620 you will need to replace the fuser unit. If you have a different model where the fuser thermistors/thermal fuses etc can be replaced then replace according to the manual.

Canon Copier Sevice Manuals