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(2) Perform the adjustment in each mode.
1) Execute SIM 46-1.
2) Select the mode to be adjusted with the exposure mode select
key. Set the exposure level to 3 for all adjustment. (Except for
the auto mode.)
(1)
(2)
(1)
Mode select key/display lamp
(2)
Exposure level select key/
display lamp
Adjustment
Exposure mode
mode
display lamp
Auto mode
Auto lamp ON
Manual mode
Manual lamp ON
Photo mode
Photo lamp ON
Manual T/S
Manual lamp/Photo lamp
mode
ON
Auto T/S mode Auto lamp/Photo lamp ON "3" is slightly copied.
3) Make a copy.
Check the adjustment level (shown in the above table) of the
exposure test chart (KODAK Gray Scale).
KODAK Gray Scale adjustment level
Non toner
1
2
3
4
save
mode
Slightly copied.
Not copied.
Toner
1
2
3
4
save
mode
Slightly copied.
Not copied.
(When too bright): Decrease the value displayed on the copy
quantity display.
(When too dark): Increase the value displayed on the copy quan-
tity display.
∗
The value can be set in the range of 1 - 99.
3. High voltage adjustment
A. Main charger (Grid bias)
Note:
• Use a digital multi meter with internal resistance of 10MΩ or
more measurement.
• After adjusting the grid LOW output, adjust the HIGH output. Do
not reverse the sequence.
Procedures
1) Set the digital multi meter range to DC700V.
2) Set the positive side of the test rod to the connector CN11-3
(GRID) of high voltage section of the power PWB and set the
negative side to the frame ground (power frame).
3) Execute SIM 8-2. (The main charger output is supplied for 30
sec in the grid voltage HIGH output mode.)
Gray chart
adjustment level
"3" is slightly copied.
"3" is slightly copied.
"3" is slightly copied.
"3" is slightly copied.
5
6
7
8
9
10
W
5
6
7
8
9
10
W
e-STUDIO202S ADJUSTMENTS 9 - 5
4) Adjust the control volume (VRG1) so that the output voltage is
580 ±12V.
Caution:Be careful not to touch the sharp edge on the circumfer-
ence of the metal frame for the power supply.
B. DV bias check
Note: • A digital multi meter with internal resistance of 1GΩ must
be use for correct check.
• The adjustment volume is locked, and no adjustment can
be made.
Procedures
1) Set the digital multi meter range to DC500V.
2) Set the positive side of the test rod to the connector CN-10-1
(DV BIAS) and set the negative side to the frame ground
(power frame).
3) Execute SIM 8-1 to output the developing bias for 30sec, and
check that the output is –400 ± 8V.
VRDV
Caution:Be careful not to touch the sharp edge on the circumfer-
ence of the metal frame for the power supply.
VRG1
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