Ricoh C211 Service Manual page 669

CUSTOMER SERVICE GROUP
BULLETIN NUMBER:
APPLICABLE MODEL: VT2105
SUBJECT: INK PUMP IMPROVEMENT
SYMPTOM:
Not all of the ink is supplied from the ink cartridge.
CAUSE:
The small ball, which is used as a valve, is not pushed back
properly.
PRODUCTION COUNTERMEASURE:
A spring has been added inside the ink pump to ensure the ball is pushed back as it should be.
PART NUMBER
C2244715
C2004827
C2004826
* DENOTES NEW ITEM
UNITS AFFECTED:
All VT2105 Priports manufactured from December '95 (C321512XXXX) will have the Pump Spring added
during production.
FIELD COUNTERMEASURE:
Install the Pump Spring (C2244715) after removing the socket (2 screws).
NOTE: 1. When you remove the socket, ink will leak out. Make
sure to place absorbent material under the work area
prior to disassembling the ink pump.
2. There is a packing (gasket) (C2004827) between the
socket and the housing (see illustration above). If it is
damaged, you may need to replace the packing,
however, this normally is not necessary.
3. The pump rubber (C2004826) is used to ensure that the
nozzle of the ink cartridge tightly contacts the pump
socket. Make sure that this part is not dislocated. The
pump rubber used on the VT1730 and other later models
is adhered by glue, however, it is not adhered on the
older models.
TECHNICAL SERVICE BULLETIN
VT2105 - 005
DESCRIPTION
Pump Spring - 13mm
Packing
Pump Rubber
Spring Added
QTY PAGE
1
1
1
02/21/96
Packing
Valve
Socket
REFERENCE
ITEM
41 27*
41 28*
41 25
Pump Rubber