A4 Iso 19752 Standard Pattern - Samsung ML-1665 Service Manual

Reference Information
6.3 The Sample Pattern for the Test
The sample pattern shown in below is the standard pattern used in the factory.
The life of the toner cartridge and the printing speed are measured using the pattern shown below.
(The image is 70% of the actual A4 size).

6.3.1 A4 ISO 19752 Standard Pattern

This test page is reproduced at 70% of the normal A4 size
6-8
Service Manual
Samsung Electronics