Ricoh B064 SERIES Service Manual page 480

B140/B246/D052 SERIES SERVICE MODE
123 D Scanner home position error 4
The scanner home position sensor
does not detect the off condition
during original scanning.
143 C SBU auto adjust error
Automatic adjustment of the SBU
fails when the machine is switched
on.
144 D SBU transmission error
After the SBU switches on, the
BCU detects one of the following
conditions on the SBU:
• 1 s after power on, the SYDI
signal does not go high, even
after 1 retry.
• 1 s after power on, the SYDI
signal goes high, but the SBU ID
could not be read after 3
attempts.
165 Copy data security unit error B828
The copy data security option is
installed by not operating correctly.
B064 Series/B140 Series
/B246 Series/D052 Series
CÓPIA NÃO CONTROLADA
• BCU, SDRB (Scanner Driver Board)
• Scanner motor defective
• Harness between BCU, SDRB, scanner
• Scanner HP sensor defective
• Harness between scanner HP sensor
• Scanner wire, timing belt, pulley, carriage
• Exposure lamp defective
• Exposure lamp regulator defective
• Harness between exposure lamp and
• White plate installed incorrectly or is dirty
• Scanning mirrors of the exposure unit are
• SBU board defective
• VIB board defective.
• Harness between SBU, VIB
• Harness between VIB, BCU
• SBU defective
• VIB defective
• Harness (40-pin shielded) between the
• Harness (shielded cable) between the
B246/D052
• Copy data security card corrupted
• The board is not installed or the board is
• IPU board defective
4-42
CÓPIA NÃO CONTROLADA
defective
motor disconnected
and BCU disconnected
installed incorrectly.
lamp regulator is disconnected
dirty or out of position
disconnected
disconnected
SBU, VIB is disconnected
VIB, BCU is disconnected
defective
SM