Ricoh C211 Service Manual page 710

TECH SERVICE BULLETIN 930/950-017
PAGE 3 OF 3
UNITS AFFECTED:
All SS950 priports manufactured after Serial Number 219oOMXXX will have the capacitor Installed on the
master processing control board during production.
board have been added to ensure reliability and durability of the thermal head. This
modification will turn "OFP the electrical supply to the thermal head during the thermal
head standby condition.
NEW PARTNO.
14010298
14010855
14060764
16091026
16042165
16042168
16061693
16100035
16100063
16100089
DENOTES NEW ITEM
l
UNITS AFFECTED:
All SS950 priports manufactured after Serial Number 2190~4XXXX will have the modified thermal head drive
board instalkcl during production.
The following components of the thermal head drive
DESCRIPTION
Thermal Head Drive Board
I
Transistor - 2SC2712Y
I
Transistor - 2SJ143
I
I IC -
Resistor Array - 1K Ohms @5%
Capacitor - 3.3uF 5OV @!O%
Capacitor - 1OOOuF 5OV @20%
Capacitor - O.lMF 5OV
Resistor - 1 K Ohms ll8W @5%
Resistor - 2.7K Ohms 1/8W
I
Resistor - 4.7K Ohms 1/8W @5%
Resistor - 10K Ohms @5%
Resistor - 1 OOK Ohms 1/8W @5%
Y E S
67
67
67
67 141'
67
67 143'
67
67 145'
67 146'