Lph Chip Adjust - Konica Minolta bizhub C350 Service Manual

bizhub C350 Field Service Ver2.0 Sep. 2004
4.4.10

LPH Chip Adjust

Functions • To correct chips of locations where FD white lines or black lines occur in the LPH Pat-
tern produced using "Test Print."
Use • White line or color line or black line occurs in the FD direction.
• The LPH Assy has been replaced.
• The LPH Unit has been replaced.
Adjustment 1. Call the Tech. Rep. Mode to the screen.
2. Touch these keys in this order: "Test Print" → "LPH Pattern."
Procedure
3. Select "SINGLE," "HYPER," "Gradation," and "Border Line:ON."
4. Press the Start key to let the machine produce a test pattern.
5. Check the test pattern for the location, at which white lines or color or black lines in
FD occur.
6. Touch these keys in this order: "Machine Adjust" → "LPH Chip Adjust."
8. The chip boundary line on the crease (the center) of the test pattern corresponds to
"20" on the panel. Starting here count out to each side of the paper to identify each
location
1
20
39
9. Find the number on the panel, to which the location of white lines or black lines in FD
checked in step 5 corresponds.
10.Select the color (C, M, Y, or Bk) in which white lines or black lines in FD occur.
✽ If the lines occur only in green on the test pattern, select Y.
11.Touch the corresponding number on the panel. (It is then highlighted and the setting
value is displayed besides the highlighted number.)
12.Change the setting value using the 10-Key Pad.
✽ When a new LPH Unit has been installed, corrections can be made for up to eight
locations.
✽ Corrections for up to five locations can be made through factory adjustments. If white
lines or black lines in FD occur, therefore, corrections can therefore be made in the
field for three to eight locations.
13.Select HYPER and color.
14.Press the Start key to let the machine produce a test pattern and check for lines.
7. Fold the test pattern in half.
(with the pattern face on the outside)
4036fs3023c0
4036fs3024c0
TECH. REP. MODE
4036fs3025j0
3-57