Minolta EP1080 Service Manual page 173

(2) Adjustment of the Optimum Exposure Setting in the Manual Mode
Requirement
•
When the manual exposure setting is at the central indication, no image of step no. 1 of a Kodak
Gray Scale should be produced on the copy, but a faint image of step no. 2 should be produced.
A
1
No image of
step no. 1
Important
•
This adjustment should be carried out only after completing "Adjustment of the Maximum
Exposure Lamp Voltage for the Manual Mode" and "Adjustment of the Aperture Blades."
3
1
0
Stop
1139D007CA
50%~200%
Zoom up down keys
1139D070CA
2 3 4 5
Faint image of
step no. 2
1. Place the Kodak Gray Scale lengthwise, face down,
and at the center on the Original Glass. Place a sheet
of pure white A3 or 11" × 17" paper over it and then
lower the Original Cover.
2. Set the copier into the Manual Exposure Mode. Set
the Exposure Setting to the central or fifth indication
and enter 15 copies to be made by using the
Multi-Copy Keys. (Use A3 paper.)
3. Press the Start Key.
Check that the 15th copy meets the requirement given
above.
4. If the exposure is out of adjustment, press the Stop
Key, Multi-Copy Key "0," Stop Key, and Multi-Copy
Key "1," in that order, to set the copier into a state
ready to enter a particular Tech. Rep. Mode.
5. Press Multi-Copy Key "1" and then "3" to set the
copier into the F3 Test Mode. (At this time, the
Magnification Ratio Indicator shows the currently set
value and the Multi-Copy Display shown "F3.")
6. Using the Zoom Up/Down Keys, vary the value on the
Magnification Ratio Indicator as necessary.
7. After the adjustment has been made, press the Panel
Reset Key twice (or turn OFF the Power Switch) to
return the copier back into the normal mode.
NOTE
Increase the value to make the image lighter.
Decrease the value to make the image darker.
D-50
M
6