Minolta CF2002 Service Manual page 167

Item
To display the D/A value
of CCD clamp/gain for
R, G, and B.
Used for troubleshoot-
CCD Check


ing for the CCD Sen-
sor.
• To check for paper
passage perfor-
mance of the engine
only without involving
a print action on
paper.
Paper Passage
• The counters do not
count up.
When a paper mis-


feed or other fault
occurs in the paper
transport system.
To check the capacity of
the add-on memory and
mounting of a hard disk.
Used when the 2-
Option Check


sided copying function
cannot be selected
after an add-on mem-
ory has been set up.
• To check each of C,
M, Y, and Bk for color
shift amount.
• The data is updated
Color Shift after a color shift cor-
rection has been
made or color shift
adjustment has been
completed.
• To display the 10-digit
lot number for each of
C, M, Y, and Bk IUs.
IU Lot No.
• The lot number data is
stored in EEPROM of
each IU.
Purpose
Following are the normal ranges to be used as
reference:
• Clamp:
• Gain: Clamp value (R and B)
B, Clamp value (G)
• The difference between each of RO and RE,
GO and GE, and BO and BE should be
within 30.
• Select the paper source and press the Start
key.
• The sequence is halted when the Stop key is
pressed or paper runs out.
When an add-on memory is mounted, the
copier automatically recognizes it and displays
its capacity.
• For each of C, M, Y, and Bk, the color shift
amount (in X and Y directions) at two loca-
tions (one at the front and the other in the
rear) and the difference in color shift amount
between the front and rear (X and Y direc-
tions) are displayed.
• Display unit: dots
• The shift amount is displayed with reference
to Bk for C, M, and Y, and that for Bk is dis-
played with reference to an ideal position.
The IU lot number is displayed even with the
Front Door opened; however, the display is
blank, since the copier is unable to read the lot
number when the Power Switch is turned ON
with the Front Door open. Nonetheless, the lot
number will be displayed when the Front Door
is closed. (The engine obtains the IU lot num-
ber information when the Front Door is closed.)
S-34
Setting/Precautions
±
100 for R, G, and B
±
50 for G
±
90 for R and