Between C207/C208 And C211/C212/C213 - Ricoh C226 Service Manual

1.4 BETWEEN C207/C208 AND C211/C212/C213

No. Item
Thermal
1
Head
Thermal
2 Head Drive
Board
Power
3
Supply Board
4 Exterior
Image
5 Processing
Board
Main
6
Harness
Drum Master
7
Sensor
C226
The heating elements used in the C211/C212/C213 thermal head
are smaller than those used on the C207/C208 models. This
reduces ink set-off on the back sides of copies.
C207/C208 model
The thermal head drive voltage has been decreased from 24V to
16V because the smaller heating elements in the thermal head
require less power.
The power supply board has been modified to output 16V to drive
the thermal head.
An ON/OFF switching circuit for the thermal head drive voltage
(VHD) has been added to the power supply board.
The design of the front cover and the model name printed on the
cover have been changed. This was done for marketing reasons
and to ensure that the users do not confuse the C211/C212/C213
models with the C207/C208 models and use the wrong master type.
(The new master is more sensitive.)
The C213 make-up control board has been eliminated because the
C213 image processing board performs the Make-up function.
A VHD ON/OFF line has been added to the main harness.
The drum master sensor has been changed to stabilize the sensor
sensitivity.
8-10
DIFFERENCES BETWEEN MODELS
Remarks
C211/C212/C213
model
SM