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Figure 1

Actual Test Results

Accept Rate

Throughput Rate

Error Rate

Meter Belt Mail Managed Mail

72.0% 62.0%

28,500 pieces/hour 30,500 pieces/hour

1.10% 1.10%

Meter Belt Mail

80.0%

28,500 pieces/hour

1.50%

Managed Mail

60.0%

31,300 pieces/hour

2.40%

Source:

United States Postal Service: August 1983 2-week tests.

16a

Meter Belt Mail

67.1%

26,224 pieces/hour

1.50%

Managed Mail

57.8%

26,730 pieces/hour

1.50%

Performance Specs

Meter Belt Mail

62.1%

28,908 pieces/hour

2.37%

Managed Mail

53.4%

30,083 pieces/hour

2.00%

Definitions: Accept Rate

Percent of letters read by the OCR as a portion of the total fed into the OCR.

Illustrative Optical Character Reader (OCR) Performance Data

Performance Specs

Pitney Bowes/ELSAG

Throughput Error Rate Meter Belt Mail -

Total mail pieces fed through the OCR per hour. Percent of letters sent to the wrong pocket.

High quality, generally OCR readable mail- from large mailers.

Managed Mail

  • -

    Mail from other Post Offices containing widely

variable levels of OCR readable mail.

Actual Test Results

Accept

Throughput

Error

Rate

Rate

Rate

Burroughs/NEC

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