Ricoh MV310 Service Manual page 208

May 22nd, 1995 REPLACEMENT AND ADJUSTMENT
DEVELOPMENT
3. Check the electrical resistance of the following.
Charge bias terminals/Zener diode
H521R656.wmf
A: Bias terminal to the CTM
B: Bias terminal from the power pack
C, D: Zener diode terminals
[A]
[C]
Criteria
A - B: 0 Ω
[D]
C - D: The resistance varies depend-
ing on the voltage applied between
the terminals.
[B]
Toner application roller bias terminals
[C]
H521R657.wmf
[A]
A: Bias terminal from the power pack
B: Toner application roller shaft
C: Toner metering blade
D: Bias brush
Criteria
A - B: Less than 1 kΩ
A - C: Less than 1 kΩ
A - D: Less than 1 kΩ
[D]
Development roller bias terminals
[B]
H521R658.wmf
[A]
A: Bias terminal from the power pack
B: Development roller shaft
Criteria
A - B: Less than 1 kΩ
[B]
Transfer roller bias terminals
[A]
H521R659.wmf
A: Bias terminal from the power pack
B: Transfer roller shaft
Criteria
A - B: Less than 10 kΩ
Note: Check the resistance while push-
ing the roller shaft down to the roller
[B]
holder.
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