omr sheet printer
omr barcode

All About OMR Sheets

Optical Mark Recognition or OMR sheets have a special design and structure than normal sheets that have elliptical bubbles or circles as answer options. In such sheets you will find index points on its four corners. These points are what make it possible for the OMR sheet reader software to read the dark marks made on the bubbles by the candidates.

OMR sheets are available in different forms. Some of them include the following:

OMR Sheet / OMR Answer Sheet

OMR Sheet

OMR answer sheets are usually used for educational institutions for conducting multiple choice questions based exams, mostly for entrance or scholarship.

Such sheets are read by the OMR answer sheet checker software, which is the first module of the OMR software.





OMR Form / OMR Application Form

OMR Sheet The main purpose of OMR forms is to collect data or information and is commonly used by research companies (surveys), educational institutions (application and admission forms), recruitment firms, etc.

The OMR form reader software, second module of the OMR software, is used for reading these forms. The main reason for using this is that it makes data collection easy, time saving and efficient.

OMR Form + OMR Answer Sheet (Hybrid)

OMR Sheet Hybrid sheets serve as OMR forms as well as answers sheets, where there are fields for collecting information and fields for answers and other related to exams.

These are used for scholarship or entrance examinations where the identity of the students is not known to the examination body.

These are also used in government examinations where the identity of the students or candidates has to be cross-checked.

As the sheet possesses the elements of both answer sheet and form, it required both the modules (OMR answer sheet checker and OMR form reader software) for reading the sheets.

OMR Sheet Design

The Addmen OMR software gives you the opportunity to design the OMR sheets on your own with the help of the OMR sheet design software. This feature comes with the reader software. Here are some of the benefits of using the OMR sheet designer:

Instructions for OMR Sheet Printing

Earlier, the OMR sheets were to be printed in two-colors. Also, thick papers had to be used for printing the sheets which had to be bought from special vendors. However, these things are not relevant today if you are using the Addmen OMR software. Here are some of the important things that you need to know about printing the OMR sheets.

OMR Sheet Printing Paper

Laser or Inkjet OMR Sheet Printer >

  • You can use a laser or digital copier printer for printing OMR sheets. Rezographs also work well.
  • The setting of the printer should be changed from Letter to A4 before printing.
  • It is important to make sure that the inkjet printer does not blot or smudge while printing.

OMR Sheet Printing on Offset >

  • Offset printing can be used for printing OMR sheets if a large number of sheets have to be printed.
  • It is better to use Plates rather than Master or Tracing Sheet.
  • Plates can be created using Corel Draw.
  • Make sure that all the sheets are of the same size while cutting them (after printing).

OMR Sheet Printing using Photocopy >

  • A good quality photocopier can be used for taking copies of the OMR sheets.
  • The size of the photocopy should be the same as the original OMR sheet design.
  • The index points on the photocopy should be dark in color. Ensure that there are no dust lines on the index points or on the bubbles. This can hamper accurate reading.

General Precautions for OMR Printing

Here are a few things that you should take care while printing the OMR sheets:

OMR Sheet Printing of Coloured OMR Sheets

  • It is mandatory to use two colors if you want to print colored OMR sheets.
  • One of the two colors should be black. The other color can be pink, yellow or orange.
  • It is best not to use colors with green and blue tones.
  • Colored OMR sheets should be printed if you need to add text inside the bubbles. This will help the software to detect the dark marks made by candidates easily.
  • One has to make sure that the colored and black index points overlap each other exactly and there is no relative displacement. In other words, there should be zero-zero registration.

OMR Sheet Printing of Barcode/ OCR Serial No./ Stamped Serial No.

  • Digitally printed numbers can be read by the OMR software. Same goes in case of barcodes printed on the sheets.
  • The OMR software cannot read stamped numbers. If using stamps, make sure there are no stray ink marks.
  • The font size of the barcode should not be more than 32 to 36. Also, it should only be printed in black.
  • OCR (Optical Character Recognition) text should be printed in 16-18 font size. It should be black in color.
  • You can download the OCR and barcode fonts from www.admengroup.com/support.htm

Instructions for OMR Sheet Scanning

We present to you some important things that you should know while scanning the OMR sheets.

  • You can use any type of scanner for scanning the OMR sheets. An ADF scanner and even a flatbed scanner can be used.
  • The reading and evaluation processes are done by the Addmen OMR software. This software can read even skewed, rotated or distorted sheets accurately. So, there are not many restrictions when it comes to scanning the sheets.
  • Make sure that there is enough space around the index points so that they are scanned properly.
  • The sheets should be kept in the scanner pockets carefully and in alignment to avoid tangling or tilting of the sheets.
  • The sheets should be scanned as Picture or Image and not as Document.
  • The sheets should be saved as TIFF or BMP files. Avoid saving as DOC/JPEG/PDF files.
  • You should scan the OMR sheets at a DPI between 100 and 200. A higher DPI is needed only while scanning sheets with photographs (100-150 DPI), with OCR or barcode (150-200 DPI) or thin tick marks (150-200 DPI). In these cases, you must scan in color or grayscale modes.

Scanning of B/w Sheets

  • It is always best to scan as black and white (1-Bit) image.
  • A scanned A4 size sheet takes a file size of 40-50 KB for TIFF and 100-130 KB for BMP (approximately).
  • Do not scan as black and white or color photo for minimum file size.
  • Do not scan in Photo mode for minimum file size. In case you scan the sheets in grayscale or color mode, the size of the file would be large.

Scanning of Coloured Sheets

  • Colored sheets as well as those with images should be scanned in color (RGB) mode.
  • These sheets should not be scanned in black and white (1-Bit) to receive a clear image.
Download and read
OMR Printing-Scanning Guide