Operation; Transfer Guide Control; Transfer/Separation Control; Transfer Exposure Lamp (Tsl) Control - Konica Minolta Bizhub 501 Service Manual

Theory of Operation Ver.2.0 Mar. 2009

10.2 Operation

10.2.1

Transfer guide control

A. Purpose
To prevent the transfer guide plate from getting stained, a minus (–) DC voltage is impressed from the high volt-
age unit (HV).
Voltage impressed: –500 V
B. Execution timing
The impression of a voltage onto the transfer guide plate is made ON a specified period of time after the devel-
oping bias turns ON. And it turns OFF a specified period of time after the developing bias turns OFF.
10.2.2

Transfer/separation control

A. Transfer
The high voltage unit (HV) pressurizes a 24V DC to impress a plus (+) DC voltage on the transfer wire for dis-
charging.
Transfer DC output range: 0 to –450
B. Separation
For separation, an AC high voltage and a minus (–) DC voltage are employed. The high voltage unit (HV)
impresses a voltage onto the separation wire for discharging.
Separation AC output range: 300 to 1000
Separation DC output range: 0 to –200
10.2.3

Transfer exposure lamp (TSL) control

A. Purpose
The transfer exposure lamp (TSL) is turned ON to secure transferability and prevent a reverse charge to the
drum.
B. Execution timing
The transfer exposure lamp (TSL) turns ON a specified period of time after the registration clutch (CL1) turns ON.
And it turns OFF a specified period of time after the registration sensor (PS1) turns OFF.
μ
A
μ
A
μ
A
10. TRANSFER/SEPARATION SECTION
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