![]() ![]() ![]() Make sure that the screwdriver you choose is capable of opening those screws, which means it matches the size of the screws, is long enough to reach the screws and can be used easily without losing your grip. Philips Screwdriver: You will need a Philips screwdriver to open the screws on the back of your printer.Since you will be performing hardware maintenance for your Canon IR 5055 and other Canon printers, you will require some tools. Required Tools and Necessary Precautions to fix e202 Therefore, the surest way to fix this error is to replace your CCD unit or its cable with a new one. This happens when either CCD unit of your scanner is faulty or the cable that connects the CCD unit to your all-in-one has some fault. The cause of this error can differ based on the printer model, but one common malfunction that causes this error is the improper functioning of scanner.Ĭommonly, it’s noticed that when scanner is not able to go back to its start position, which is the left side of the glass flatbed, your Canon MFP will display E202 error. This error doesn’t allow the users to access the printing, scanning and copying features of their Canon multifunction device. Possible causes behind e202 errorĪlmost every Canon all-in-one can display E202 error. The simplest solution is to clean the Flat Cable and re-attach it to the Main Controller Board of your Canon printer. This problem in the connection adversely affects the functioning of the Contact Sensor, which can cause the error E202 0002 on Canon printers. Sometimes, this Canon error is caused when there is a connection problem between the Flat Cable and the Main Controller Board in your Canon image class printer. There are some simpler solutions, which doesn’t require any hardware replacement, but only some minor maintenance process. Therefore, the possible causes of this error according to the Canon service manual can be:Īlthough it may seem that the solution to the causes listed above may need you to replace the reader motor, HP sensor or the CIS unit, these are the causes mentioned in the service manual. Required Tools and precautions to fix itĪccording to the service manual of Canon MF4770n printer the error E202 0002 is displayed when the CIS (Contact Image Sensor) unit didn’t move to HP. ![]()
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