Ricoh C231 Service Manual page 690

ESSENTIAL DIFFERENCES BETWEEN C248 AND C267 MODELS
7. SPECIFICATIONS
7.1 ESSENTIAL DIFFERENCES BETWEEN C248 AND
C267 MODELS
No. Item
1 Scanner unit
2 Operation panel
3 Master eject unit
4 Master making unit
5 Drum unit
6 Separation Pressure
7 Paper height sensor
8 Paper delivery unit
9 PSU
10 MPU
11 Image processing
12 SP mode / User tools
13 Auto off mode
14 ADF
SM
Remarks
A newly designed scanner unit is used.
600 dpi x 300 dpi CCD
A3 / 11" x 17" size book scanner
A newly designed operation panel is used.
Bigger size bright LCD
Two start buttons (master making and print) combined
into one.
Added a master eject unit open mechanism
Added a master making unit slide-out mechanism
New ink pump unit (Trochoid type pump)
Metal screen / Cloth screen
Change the mylars to prevent ink leakage
The separation pressure can be changed with a lever.
3 levels (Other destinations)
4 levels (Chinese models)
Two paper height sensors
Based on the TT model
The main motor drives the paper delivery unit.
Vacuum fan changed from sirocco fan motor to axial
fan motor.
A newly designed PSU is used.
Abnormal voltage protection mechanism. (220V
machine only)
• Durability is improved
• Auto detection system for unexpected voltage
surges, with automatic shut-off and data logging
features.
A newly designed MPU is used.
MPU controls: Machine, paper feed, image processing,
main motor
Upgrade the firmware using a flash memory card
An LSI improves image processing
Added the auto-off mode
A newly designed ADF is used.
7-1 C267