1.4.2 V
02
Measuring
During the process control data initialization, V
01
is measured to determine
the development bias for the ID sensor pattern in continuous copy runs. This
bias cannot be used for the initial part of the copy run (less than 10 copies)
due to the different drum potential after the charge corona is applied.
Whenever the Start key is pressed, the drum potential after the charge
corona is measured at the beginning of the copy run (V
02
).
V
02
is used to determine the development bias voltage for the ID sensor
pattern which is made at the first copy.
The details will be explained in the Image Density Control section.
Start key
Charge
Corona
Exposure
Lamp
Scanner F
R
Drum
Potential
Sensor
V
02
V
L2
V
L2
V
L2
V
L2
V
L2
V
L2
V
L2
V
L2
A171D523.wmf
31 July 1995
PROCESS CONTROL
2-15
Summary of Contents for FT8680
Page 3: ...SECTION 1 OVERALL MACHINE INFORMATION ...
Page 8: ...MEMO 31 July 1995 SPECIFICATIONS 1 5 ...
Page 23: ...6 5 IMAGE OVERLAY MODE 2ND SIDE A171V505 wmf PAPER PATH 31 July 1995 1 20 ...
Page 24: ...SECTION 2 DETAILED SECTION DESCRIPTIONS ...
Page 133: ...Timing Chart 1 Stack 2 Paper Feed A171D551 wmf A171D552 wmf 31 July 1995 DUPLEX 2 109 ...
Page 159: ...SECTION 3 INSTALLATION ...
Page 177: ...SECTION 4 SERVICE TABLES ...
Page 229: ...SECTION 5 REPLACEMENT AND ADJUSTMENT ...
Page 362: ...SECTION 6 TROUBLESHOOTING ...