1. OMR scanners are more accurate than using an image scanner with OMR software, consistently achieving over 99.9% accuracy compared to up to 99.9% accuracy with editing required for the image scanner. 2. OMR scanners have advantages like dedicated read heads for each response column, specialized feed rollers, 16-level mark discrimination, and interactive printing capabilities that improve accuracy over image scanners. 3. OMR scanners are designed for heavy-duty use, with materials and components optimized for continuous scanning over long periods, while image scanners have limited daily scanning capacities and open-path designs that increase jamming risks.

1. OMR Scanner
vs.
Image Scanner + OMR Software

2. Data Collection Systems
OMR
Scanners
OMR
Software
Data
Collection
Systems

3. How the systems Run?
Generate Report
Editing in case of errors
Get Student Responses
OCR
Send Image to
Remark Office Software

4. How the systems Run?
Scan
get student responses
010010101010101001
1001010101010010010
1010101010101010
Send Student Data to
Remark Classic Software
Generate Report
In case of error it reject
it or not based in user constraint

5. Accuracy
Heavy
Duty
Running
Cost
We have to talk in details for every step of the way

6. Accuracy
the desired accuracy during scan

7. Accuracy
» OMR Scanners
» OMR Software
 Consistently 99.9+ %
 Up to 99.9 % with Editing
 Validation and scoring on the
 Validation and scoring occur
fly (during scanning).
 Selected stacker for rejected
papers.
 Not in need to expert person
exist while scanning.
after scanning.
 Invalid paper go with normal
paper so you will need to
search with the scanned
images.
 There is a need to expert
person exist while scanning.

8. Why OMR Scanner is more Accurate?
1. Read Head Design
In image scanner if you have the read head
begin to waken you will have less accurate in
scanning and resolution and you will not
know till you have big problems (read head
affected with amount of graphics, text and
dirty in paper).
In OMR Scanner each column have its own
LED and if LED have some problem the
scanner will let you know and you can fix
only this LED, the LED read the place of
data only not all the paper.

9. Why OMR Scanner is more Accurate?
2. Feeding
• The feed rollers (tires)
The feed rollers used in image only scanners will transfer pencil graphite
from the sheet being scanned to subsequent sheets which can OCR be read as
Note: The image only scanners with the easily
a mark.
Software solution would use a pixel count
Scantron EngineeringOMR that will create and density to eliminate this
approach for changed feed roller material errors when
graphite transfer problem.
erasures are on the sheet. This approach sets a
As you can imagine, when pencil graphite is transferred to the following sheets,
level of 'fill' for the bubble, say 10% which
and read as a mark when there really is no mark intended, high stakes testing
would be interpreted as a 'hit' for the answer. If
results are at serious risk.
there is an erasure on the sheet, and the pixel
• The scanner buffering design
count for that bubble is 10%, they have a double
The image only scanner doesn't know if there is an error until 3 sheets after the
'hit', so this results in an error.
sheet is fed - much too late to do anything about the error due to scanner
buffering design.

10. Why OMR Scanner is more Accurate?
3. Mark Discrimination Levels
Image Scanner (Bi-Tone) have no mark discrimination levels while OMR Scanner (256
Gray Scale) have 16 Level
Results
Error
Correct
Error
Correct
Error
Correct
Error
Correct
Correct
Correct
Correct
Correct
Correct
Error
Correct
Correct
The studyMark was Original at the University of
done
Bi-Tone/No that
16 Level Mark
Discrimination
Document
Discrimination
Georgia showed that running a Fujitsu scanner
with the remark software produced about a 3%
error rate in the scoring. Most of this error was
in multiple marks due to erasures being picked
up.
Results
Correct
Correct
Correct
Correct
Correct
Correct
Correct
Correct
Correct
Correct
Correct
Correct
Correct
Correct
Correct
Correct

11. Why OMR Scanner is more Accurate?
4. OCR process
Recognition Area for Question
A B C D E
Wrong (A)
OK
Each choice have its own Recognition Area
(A and C)
(B
B)
The image only scanners with the OCR Software solution would use a pixel count
approach for OMR that will create errors when erasures are on the sheet. This approach
sets a level of 'fill' for the bubble, say 10% which would be interpreted as a 'hit' for the
answer. If there is an erasure on the sheet, and the pixel count for that bubble is
10%, they have a double 'hit', so this results in an error.

12. Why OMR Scanner is more Accurate?
5. Interactive Transport Printer
 Prints information such as:
• Error codes.
• Date or Timestamp.
• Alphanumeric messages.
• Batch or serial numbers.
• Validation flags.
• Test scores (total score or subtest score) .
all this information based on data that is scanned. Printing occurs during
scanning so there is no effect on throughput rate.
 Image Scanners cannot print on the form because it depend on
post-scanning processes.

13. Heavy Duty
the main factor is to continue with good performance , not to start with good performance

14. Heavy Duty
1. Materials
 Rollers (tires):
o In image scanner the rollers like printers manufactured from material which
affected with dirty and graphite and cleaning material so it can easily read
as a mark.
o In Scantron OMR Scanner engineers changed roller material and density to
eliminate this graphite transfer problem and to be easy to clean.
 Read head:
o In image scanner it’s one unit (contain camera, mirrors & lamp).
o In OMR Scanner it’s 48 LED (using infrared).

15. Heavy Duty
2. Daily Usage:

The image scanner have limited pages to be scanned per day (for
example scanner PANASONIC KV-S2048C scan maximum 6,000 page
per day).

Scantron OMR Scanner can work 24 hours per day.

16. Heavy Duty
3. Open Feed Path:
The image scanner have not open
feed path so it’s increase the
probability of Jam and in case of
jam it’s not easy to overcome this
jam
In OMR Scanner Open feed path design
for direct access to roller assemblies and
read heads simplifies cleaning and
document removal

17. Running Cost

18. Running Cost
1. Form Design (Capacity)
• Remark uses larger bubbles and cannot space them as closely on the
forms as we can with a traditional OMR form. This could create altering
tests or going to a 2 page response where with an OMR form this would
not be an issue.

19. Running Cost
Printing
Desktop Printer
* In case of small amount of forms.
* Problems of packing & printing quality.
* Parts lifetime which affect in quality (like heater or toner line lengthwise the form).
* Form Shifting.
Print Planet
* In case of large amount of forms (or accurate forms).
* Easy packing & high printing quality.
* Avoid headache of low quality of printing due to the parts lifetime (like heater or toner).
* Avoid the cost of printer depreciation.
* Decrease the probability of Shifting to the minimum rate.

20. Running Cost
3. Machine Cost
• Image scanners are not designed for serving this area, and if we want to
have image scanner which is suitable for this area we will find it in the
high volume category and it cost a lot.
• In the other hand OMR Scanners is designed specially for serving this
area so it works for long time and it has modified to strengthens some
components which make the lifetime of scanner is more longer with the
needed accuracy.

21. Questions