C-3752 malfunction detected. call technical support.

C 2557 - ATDC sensor error.You need to replace the developer in imaging unit.

did you mean 3451 no 3454 in the service manual

Btw, I’m available to help over the phone in case u need at https://www.6ya.com/expert/normanj_7893313f0751935f

The copiers CPU is equipped with a self diagnostics function that on detecting a malfunction,gives the corresponding malfunction code on the touch panel.Resetting a malfunction:
- Press the trouble reset switch on the technical representative setting switches board to reset fusing and exposure lamp related malfunctions.(code: C400,410,420-expo;C500,510,520-fusing unit)
- For any other malfunctions,open and close the front door or turn OFF and ON the power switch.
C1441 CCD failure(clamp adjustment failure).
Reset the malfunction,check that the original glass is properly installed.Check for extraneous light and check to see if CCD Assy and mirrors are installed at the correct position.If the same malfunction is detected again,change image processing board.

Code C0200

Description
PC Drum Charge, Image Transfer, Paper Separator Corona malfunction

Detection Timing
The leak signal (SCD) turns ON after the PC
Drum Charge and Image Transfer/Paper Separator
Corona output has been turned ON.

Try this:

C0200: Corona Malfunctions
Relevant Electrical Parts

• High Voltage Unit HV1
• Master Board PWB-A

What code is showing? and what model are we talking about?

Btw, I’m available to help over the phone in case u need at https://www.6ya.com/expert/normanj_7893313f0751935f

Fuser Heat Error. Sometimes this code can be cleared by using the reset procedure outlined below. If the code returns then you will need to have the unit serviced.
Reset Procedure:

1. Turn main power switch OFF.

2. Turn main power switch ON while pressing the Menu/Select key.

3. Keep pressing the Menu/Select key until the LED turns OFF on the control Panel.

4. Check to make sure that "Trouble Reset" is displayed on the control Panel

after LED turns OFF.

5. Pressing the Menu/Select key.

6. Check to make sure that "OK" is displayed and the it has been reset.

7. Turn main power switch OFF and ON again, and make sure that the machine properly
starts.

Good Luck and Thank You for using Fixya.
WheatlandServices

What is the MAKE & MODEL? I'm guessing you have a Minolta??? You need to clean the drum unit & the ATDC sensor or replace the OPC

http://www.usa.canon.com/cusa/support/consumer/digital_cameras/powershot_sd_series/powershot_sd600#ServiceAndSupport

Issue: Flash will not fire when the flash mode is set to On or Auto even in low light conditions.
Solution: The PowerShot SD600 requires repair service.


If all troubleshooting steps have failed, then the issue you describe seems to indicate that your product requires repair service. Canon has excellent service options and we are eager to provide any assistance you may need. Links to the service options that are available for your product are listed below:
Request a Repair Online You can conveniently pre-arrange repair service with a Canon Factory Service Center through Canon's website. Find a Service Location Search to locate a repair service center and obtain further instructions. If you still have questions about the issue you are experiencing, a Technical Support Representative will be happy to answer any question you may have. You can contact us through the email link or phone numbers listed below.

• Obtain Support by Email
  
• For toll-free technical support, please call 1 (800) 828-4040 begin_of_the_skype_highlighting 1 (800) 828-4040 end_of_the_skype_highlighting during regular business hours (currently Monday-Friday 10:00 a.m. - 10:00 pm. EST, excluding holidays).
  
• Toll-free TDD Support Line for the Hearing Impaired is available Monday - Friday (excluding holidays) at 1-866-251-3752 begin_of_the_skype_highlighting 1-866-251-3752 end_of_the_skype_highlighting
  
• Technical Support is available for Customers in Canada at 1-800-OK-CANON begin_of_the_skype_highlighting 1-800-OK-CANON end_of_the_skype_highlighting
  

We look forward to helping you rectify the issue you are experiencing and are always available to provide any assistance you may need.

whats the code? Then i can help.

Search Canon's website (www.canonusa.com) for the manual.
I did a quick look but didn't find it there. You might have to call
Canon:

Canon USA offers a full range of customer technical support* options:

• Toll-free live technical support** Monday - Friday 8:00 a.m. - 8:00 p.m. EST at 1-800-828-4040
• The location of the ASF nearest you for carry-in service at 1-800-828-4040
• Toll-free TDD Support Line for the Hearing Impaired Monday - Saturday (excluding holidays) at 1-866-251-3752
• Technical Support for Customers in Canada at 1-800-OK-CANON

or email link
http://www.usa.canon.com/consumer/controller?act=ModelInfoAct&tabact=DownloadDetailTabAct&fcategoryid=349&modelid=9796#SupportDetailAct

Mike