Ricoh Aficio MP 301SPF Service Manual

NCU Parameters
D127/D128 5-82 SM Appendix
2. Italy and Belgium only
RAM address 68055E: the lower four bits have the following meaning.
Bit 2 - 1: International dial tone cadence detection enabled (Belgium)
Bit 1 - Not used
Bit 0 - 1: PSTN dial tone cadence detection enabled (Italy)
If bit 0 or bit 2 is set to 1, the functions of the following RAM addresses are changed.
680508 (if bit 0 = 1) or 680538 (if bit 2 = 1): tolerance for on or off state
duration (%), and number of cycles required for detection, coded as in address 680533.
68050B (if bit 0 = 1) or 68053B (if bit 2 = 1): on time, hex code (unit = 20 ms)
68050C (if bit 0 = 1) or 68053C (if bit 2 = 1): off time, hex code (unit = 20 ms)
3. Pulse dial parameters (addresses 68054A to 68054F) are the values for 10 pps. If 20 pps is
used, the machine automatically compensates.
4. The first ring may not be detected until 1 to 2.5 wavelengths after the time specified by this
parameter.
5. The calculated level must be between 0 and 10.
The attenuation levels calculated from RAM data are:
High frequency tone:
 – 0.5 x N
680552
/
680554
–3.5 dBm
 – 0.5 x N
680555
dBm
Low frequency tone:
 – 0.5 x (N
680552
/
680554
+ N
680553
) –3.5 dBm
 – 0.5 x (N
680555
+ N
680553
) dBm
 N
680552
, for example, means the value stored in address 680552(H)
6. 68054A: Europe - Between Ds opening and Di opening, France - Between Ds closing and Di
opening
68054D: Europe - Between Ds closing and Di closing, France - Between Ds opening and Di
closing
7. Tone signals which frequency is lower than 1500Hz (e.g., 800Hz tone for AI short protocol)
refer to the setting at 6805B5h. Tones which frequency is higher than 1500Hz refer to the
setting at 6805B6h.
8. 68054A, 68054D, 68054E: The actual inter-digit pause (pulse dial mode) is the sum of the
period specified by the RAM addresses 68054A, 68054D, and 68054E.

Ricoh Aficio MP 301SPF Specifications

Power

power requirements	120V, 60Hz, 8A
power consumption	Less than 1.1 kW
sleep mode power consumption	2.8 W

System Memory

system memory	1 GB RAM
hard disk drive	Optional 128 GB HDD
CPU	RM7035C – 533 MHz

Printer Specifications

output speed	Up to 31 ppm (Letter)
maximum print resolution	600 x 600 dpi
first copy time	6 seconds or less

Paper Handling

standard input capacity	250 sheets + 100-Sheet Bypass Tray
output capacity	250 sheets (internal tray)
document feeder original capacity	50 sheets (ARDF)

Scanner Specifications

scanning speed	31 ipm @ 300 dpi B/W
scanning resolution	100 to 600 dpi
scan area main	8.5 inches

Weight and Dimensions

width	19.0 inches
depth	17.7 inches
height	18.1 inches
weight	57.3 lbs.