Encoder strip My encoder strip came off of my lexmark x4270 all in one printer. I need to know how to put it back on.

This article about Error 0502 on the Lexmark X6150/X6170 Printer LCD Display will give detailed instructions on how to re-seat the encoder strip back to its place.

The 1200 error indicates that either the cartridge/s is not properly installed or snapped in the cartridge carrier, the encoder strip (transparent strip behind the cartridge carrier) is out of place or something is blocking the cartridge carrier's path. This article 1200 Error Message on a Lexmark X4250/X4270/F4270 All-In-One will help you identify and resolve the issue.

The 1200 error indicates that either the cartridge/s is not properly installed or snapped in the cartridge carrier, the encoder strip (transparent strip behind the cartridge carrier) is out of place or something is blocking the cartridge carrier's path. This article 1200 Error Message on a Lexmark X4250/X4270/F4270 All-In-One will help you identify and resolve the issue.

The 1200 error could be caused by a cartridge not properly inserted in the carrier, encoder strip got unseated from its position or there's something blocking the cartridge carrier path. Try to refer to this article in the Lexmark website to determine what's causing this and resolve the problem: 1200 Error Message on a Lexmark X4250/X4270/F4270 All-In-One.

This article in the Lexmark website has some visual aids that can better guide you on how to reseat the encoder strip (long clear stripe) in your printer: Printer Cartridge Stalls or Is Blocked.

This article in the Lexmark website will give you an idea on how to re-seat the encoder strip in the carrier assembly: Printer Cartridge Stalls or Is Blocked

The 1200 error indicates the cartridge carrier has stalled. It could be caused by a cartridge that's not properly seated or the encoder strip (transparent strip behind the cartridge carrier) is out of place. Refer to this article from the Lexmark website: 1200 Error Message on a Lexmark X4250/X4270/F4270 All-In-One to help you identify and resolve the problem.
If you need additional assistance, please contact Lexmark technical support. Thanks.

The 1200 error is caused by a cartridge carrier stall. This can happen if the encoder strip is out
of place.
Please follow the steps given below:
1. Turn off the All-In-One by pressing the power button. Open the control panel and cartridge access
door.
2. Gently grasp the cartridge carrier belt in the area indicated by the blue arrow and move it to the
left
3. On the back of the cartridge carrier, there is a small slot that the encoder strip fits into.
Remove the print cartridges and then gently push the encoder strip down and then back up to get it
into the slot. NOTE: If the strip is completely out of the slot, it may be necessary to move it
first forward and then back.
4. Reinsert the print cartridges and slide the cartridge carrier back to the right. Then close the
cartridge access door and the control panel and turn the All-In-One back on.
5. Did the error message return?
If Yes, continue to 'Contacting Lexmark' below.
If No, the error is fixed.

hey jessies well the the encoder strip is which comes back of catridge carrier , just call back the customer care, they will help u out

Is it just loose or out of its slot or is it faulty and you need a new one?