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How does a MICR reader work?

Author

William Harris

Updated on March 20, 2026

How does a MICR reader work?

As the check enters the scan path, the magnetic ink passes over a magnet in the scanner to “charge” the ink before it passes over the MICR read head. The MICR read head is a device built into the scanner designed to read the magnetic signal emitted by the MICR ink characters on the check.

What is Cheque scanner?

The cheque scanning device scans both the front and the back of the payment, transforming the paper cheque into a legal digital image. The scanner is made up of a set of small light detectors positioned in a line. The scanner gathers the data on the paper cheque and then produces a replica image file.

Do banks still use MICR?

The Federal Reserve and all banks require that checks are printed with MICR ink or toner for ease of processing. Financial institutions read checks optically and/or magnetically, using MICR. It’s also important to note that not all banks have optical technology.

Where can I find MICR code?

The MICR code is located on the bottom of a cheque leaf, next to the cheque number. You can also find it printed on the first page of a bank savings account passbook. What is MICR code used for?

Why do you have to scan the back of a cheque?

Banks use this space to note the flow of events when a check is processed. 2 You’ll notice that this section is usually printed in very light ink (possibly with a pattern of lines) making it hard to photocopy and reproduce.

Can a cheque be scanned?

The cheque scanning device scans both the front and the back of the payment, transforming the paper cheque into a legal digital image. The scanner gathers the data on the paper cheque and then produces a replica image file.

Can mobile deposit detect magnetic ink?

Many banks use remote deposit capture (RDC) technology allowed by Check 21 regulations. This is allows you to deposit a check with your bank using your smartphone by taking a picture of it. With the rise of check imaging, having magnetic ink printed in the codeline of a check is no longer a requirement.

Why did my bank send me a substitute check?

For example, your bank may give you a substitute check if you ask to have a particular canceled check back to prove a payment. Also, your bank might provide a substitute check to you when returning a “bounced” check that you deposited into your account.

How can I get my MICR code online?

Where can I find the MICR Code?

  1. You can find the code at the bottom of the cheque and passbook provided by the bank.
  2. You can get this code on the website of respective bank.

How can I get HDFC MICR code?

Those who are searching for HDFC Bank IFSC or MICR code can find it online on a number of third-party websites. Even the bank website can be visited for the same information. MICR, expanded as Magnetic Ink Character Recognition Code, is usually printed on the bottom half of the cheque leaf.