Ricoh A250 Service Manual page 537

Bits 6 and 7: Scan density for the "Dark" setting.
(This switch is effective only when a PC scanner application with the CMF-TWAIN
driver is used.)
Bit 7 Bit 6 Setting
0 0
0 1
1 0
1 1
6800D6(H) to 6800D7 - User parameter switch 22 to 23 (SWUSR_16 to 17)
Bits 0 to 7: Not used
6800D8(H) - User parameter switch 24 (SWUSR_18)
Bits 0 and 1: File retention time (Cross reference: System switch 02 bit4)
Bit 1 0 Setting
0 0 Disabled
0 1 24 hours
1 0 Disabled
1 1 72 hours
Bits 2 to 7: Not used
6800D9(H) - User parameter switch 25 (SWUSR_19)
Bits 0 to 3: Not used
Bit 4: RDS operation
Note: This bit is only effective when RDS operation can be selected by the user.
Bits 5 and 6: Not used
Bit 7: Daylight saving time
6800DA(H) - User parameter switch 26 (SWUSR_1A)
(This switch is not printed on the user parameter list.)
Bit 0: Not used
Bit 1: Dialing type
Bits 2 to 7: Not used
6800DB(H) - User parameter switch 27 (SWUSR_1B)
PSTN access code from behind a PABX
(This switch is not printed on the user parameter list.)
Access number
0
0
00
99
6800DC(H) to 6800DF - User parameter switch 28 to 31 (SWUSR_1C to 1F)
Bits 0 to 7: Not used
6800E0 to 6800EF(H) - G4 Parameter Switches
(Refer to the ISDN G4 option service manual for details.)
SM
Level 7 (default)
Level 5
Level 6
Level 7
0: Not acceptable
1: Acceptable for the limit specified by system switch 03
0: Disabled, 1: Enabled
0: Pulse dialing (10 pps), 1: Tone (DTMF) dialing
Hex value to program (BCD)
F0
F0
00
99
4-75
SERVICE RAM ADDRESSES
A250