My Canon ir 2420 photocopy is keep asking me insert drum unit but it there

SOURCE: My ir canon photocopier shows

if you are changing the machine room from cold to warm, it can causes the error code E100, it's a condensation of the laser sensor. to solve this problem you need change the laser sensor PCB or the laser unit. or try to warm up the pcb sensor with a hot air. look at the picture to identify the laser sensor:

Chris Coughlin

• 1326 Answers
• Posted on Apr 14, 2008

SOURCE: canon ir 400 photocopier

What is the sub error code E805-" " -007 is is a blown fan and a blown fuse on the DC control. " " -002 could be a broken connection or pinched wire under the adf pillar on the right rear near the fixxing unit. If your have more info. on the code let us known..... Good luck

SOURCE: canon ir 2200 Error code E000064-0000

E064 The presence of a high-voltage error is communicated by the composite power supply PCB. (The output for primary charging, developing, or transfer
has deviated from a specific level of voltage.)
Main cause The contact has poor connection. The wiring is faulty. The composite power supply PCB is faulty. The DC controller PCB is faulty.
Action
1. Contact
Is any of the contacts of the primary charging roller, developing assembly, or transfer charging roller soiled? Or, is there poor contact?
YES: Clean the contact, and set it once again.
2. Wiring
Is the wiring between the contacts for the following normal: DC controller
PCB (J301), composite power supply PCB (J136), primary charging roller, developing assembly, transfer charging roller?
a. DC controller PCB (J301) <-> composite power supply PCB (J136)
b. composite power supply PCB (J130-7) <-> primary charging roller contact
c. composite power supply PCB (J130-1) <-> developing assembly contact
d. composite power supply PCB (FT133) <-> transfer roller contact
NO: Correct the connection.
3. Composite power supply PCB, DC controller PCB
Try replacing the composite power supply PCB. Is the problem corrected?
YES: Yes.
NO: Replace the DC controller PCB.

SOURCE: canon iR 2016 copier problem E019

Product : imageRUNNER 2200/2800/3300(i)/2220N(i)/3320N(i) Title : E019
Error : 
E019-0000 is displayed on the control panel. 

Workaround : 
This error code is the indication of the waste toner container being full or a problem with the detection mechanism. Actions to be taken are:1. Turn the machine off and check the waste toner container. If the container is full, empty the container. Clean the inside and outside of the container's neck with alcohol. Be sure that the neck is clear and not soiled with toner before placing it back into the machine. Turn the machine on and check to see if the code went away.
2. If the container isempty and the code is still displayed, check the neck of the container. Turn the machine off and check the container,if the neck is dirty, clean the inside and outside with alcohol before placing it back into the machine. Turn the machine on and check to see if the code went away.
3. If the machine still displays the code after the bottle is emptied and the neck clean; check the sensor, the sensor connections to and from the DC controller PCB for continuity, and the proper positioning of the sensor. Replace the sensor if it is damaged or excessively soiled with toner.

SOURCE: e000000-0000 on canon ir2200 photocopier how to

this is tadesse E000is the main thermiistor (TH1) has poor contact or an open circuit. the termal switch (TP1) has an open circuit.the main /sub heater has an open circuit .the main power supply PCB is faulty. the DC controller PCB is faulty .you can clear starting service mode 1) press the user mode key *
2) press '2' and '8' on the keypad at the same time
3)press the user mode key * on the contrl panel
(copier, fuunction,clear,ERR