Level History1; Level History2; Temp. & Humidity; Ccd Check - Konica Minolta bizhub C450 Service Manual

Field Service Ver. 1.0 Mar. 2005
10.12.3

Level History1

Functions • To display TCR (T/C ratio), IDC/Regist Sensor output values, and fusing temperature.
Use • Used for troubleshooting of image problems.
Setting/ • TCR-C/-M/-Y/-K: Shows the T/C output reading taken last.
Procedure • IDC1/IDC2
• Temp-Belt
• Temp-Press.
"Reading taken last" means
• Density of toner of the latest image
• When a test print is produced by pressing the Start key while Level History 1 is being
displayed.
10.12.4

Level History2

Functions • IDC Sensor (Transfer Belt bare surface level) as adjusted through the image stabili-
zation sequence and ATVC value.
Use • Used for troubleshooting of image problems.
Setting/ • IDC Sensor: Shows the intensity adjustment value (0 to 255) of the IDC Sensor.
Procedure • ATVC (C, M, Y, K): Shows the first image transfer ATVC adjustment value
• ATVC (2nd)
10.12.5 Temp. & Humidity
Functions • To display the temperature and humidity of a specific location (AIDC Sensor portion)
inside the machine and fusing temperature.
Use • Used as reference information when a malfunction occurs.
Setting/ • Machine interior temperature
Procedure • Temperature on Fusing Belt side
• Temperature on fusing pressure side : 0 to 255 °C in 1 °C increments
• Machine interior humidity
• Absolute humidity
10.12.6

CCD Check

Functions • To display the D/A value of CCD clamp/gain for R, G, and B.
Use • Used for troubleshooting for the CCD Sensor.
Setting/ • Use the following guidelines on the correct range of values.
Procedure CLAMP: The difference between the max. and min. output values should be
GAIN : The difference from the CLAMP values (R, B) should be within (90 for R
: Shows the latest IDC data.
: Shows the latest Heating Roller temperature data.
: Shows the latest Fusing Pressure Roller temperature data.
(300 V to 3000 V).
: Shows the second image transfer ATVC adjustment value
(300 V to 5000 V).
within ±100.
and B. The difference from the CLAMP value (G) should be within ±50
for G. The difference between each pair of RO and RE, GO and GE, and
BO and BE should be within 30.
: 0 to 100 °C in 1 °C increments
: 0 to 255 °C in 1 °C increments
: 0 to 100 % in 1 % increments
: 0 to 100 in 1 increments
10. Service Mode
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