Oki OKIOFFICE 84 Service Manual page 256

6.5 Self-Diagnosis Test
1. Purpose
To check ROMs, RAMs and printing function.
2. Procedure
l
Test report will be automatically printed out with the following items:
a) Pattern 1
b) Pattern 2
c) Pattern 3
d) Pattern 4
e) Pattern 5
Service Guide OKIOFFICE 84
Chapter 6 Cleaning and Maintenance
All white (32 lines)
Stair pattern (32 lines in each step)
All black (32 lines)
Alternate printing of black dots and white dots (32 lines
x 2)
All white (32 lines)
Page: 144