Ricoh B264 Service Manual page 291

4646* SBU Setting: Time-out Flag
Use this SP to determine whether the automatic scanner adjustment loop has
exceeded the prescribed number of loops and flagged a timeout. The position of
the bits that display "1" tell you where the error has occurred.
Bit No. Where the Error Occurred
Bit 0 Black Level Scan Data – Ech
Bit 1 Black Level Scan Data – Och
Bit 2 Gain Adjustment Timeoout – Ech
Bit 3 Gain Adjustment Timeout – Och
Bit 7 Reference Adjustment Timeout
4655* BK Adjustment: Prev. DFU
These SP codes allow you to confirm the values for rough and detail adjustments
of the black level even and odd channels before the machine was powered on.
You can also adjust these values manually with the 10-key pad. If you change any
of these SP codes manually, be sure to turn the machine off and on to enable the
new settings.
4655 1 EVEN
4655 2 ODD
4655 3 EVEN
4655 4 ODD
4647 SBU Setting: SBU Reset Flag Error DFU
4659* Gain Adjustment Last Time
When the machine is turned on, the SBU performs separate fine adjustments for
Ech (the even channel) and Och (the odd channel). These SP codes read the
values of the adjustments in effect before the machine was powered on. These SP
codes should display 223±1, set by the white level peak adjustment as the fine
gain adjustment and sent to the DAC.
You can use these SP codes to adjust the value manually. Be sure to turn the
printer off and on to enable any settings that you change.
4659 1 EVEN
4659 2 ODD
4674* BK Rough Adjustment: Factory DFU
4674 1 EVEN
4674 2 ODD
4674 3 EVEN
4674 4 ODD
SM
Rough adjustment – EVEN channel. [0~255/0/1]
Rough adjustment – ODD channel. [0~255/200/1]
Detail adjustment – EVEN channel. [0~255/200/1]
Detail adjustment – ODD channel. [0~255/200/1]
[0~255/0/1]
[0~255/200/1]
5-27
SERVICE PROGRAM MODE TABLES
B264/B265