Ricoh FACSIMILE FAX77 Field Service Manual page 101

Confidential Password
2A3D and 2A3E
Contrast thresholds
0217 - Light
0218 - Normal
0219 - Dark
The value can be from 01 to 0F. Higher values make the image paler.
Speaker volume in voice message mode
The speaker volume in voice message mode is controlled with RAM address 0227, bits 2 and 3 as follows.
Bit 3 2
0 0 High
0 1 Medium low
1 0 Medium high
1 1 Low
The speaker is enabled or disabled in voice message mode with bit 4 of RAM address 0227 (0: Disabled, 1:
Enabled).
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