Service manual

ESSENTIAL DIFFERENCES BETWEEN C252 AND C267 MODELS 28 March 2006
7-2
7.2 ESSENTIAL DIFFERENCES BETWEEN C252 AND
C267 MODELS
No. Item Remarks
1 Scanner unit A newly designed scanner unit is used.
600 dpi x 300 dpi CCD
A3 / 11” x 17” size book scanner
2 Operation panel A newly designed operation panel is used.
Bigger size bright LCD
Two start buttons (master making and print) combined
into one.
3 Master eject unit Master eject unit open mechanism like in the VT series
4 Master making unit Master making unit slide-out mechanism like in the
Sapphire series
5 Drum unit Ink pump unit
New ink pump unit
Changed the motor to Trochoid type from piston pump
type
6 Paper table Based on the Silver series paper feed table
7 Paper height sensor Two paper height sensors
8 Paper feed Two types of roller (Paper pick-up roller and paper feed
roller)
The number of levels for paper feed pressure are
changed from 2 levels to 3 levels.
9 Separation pressure The separation pressure can be changed by the user
with a lever.
3 levels (Other destinations)
4 levels (Chinese models)
10 PSU 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
11 MPU A newly designed MPU is used.
MPU controls: Machine, paper feed, image processing,
main motor
Upgrade the firmware using a flash memory card
12 Image processing An LSI (same as the HP4) improves image processing
13 Printing speed There are three printing speeds (not two).
13 SP mode / User tools Based on the HP4
14 Auto off mode Added the auto-off mode
15 ADF A newly designed ADF is used.