KONICA 1312 Service Manual ech4
Chapter 4 Adjustment
4-1. Toner density.........................................................4-1
4-2. Fusing temperature .............................................. 4-1
4-3. Exposure voltage ..................................................4-2
4-4. Image position.......................................................4-2
4-4-1. Center position ..................................................4-2
4-4-2. Leading edge position.......................................4-3
4-4-3. Image skew.........................................................4-3
4-5. Magnification adjustment.....................................4-3
4-5-1. Feeding direction (Vertical magnification) ......4-3
4-5-2. Crosswise direction
(Horizontal magnification) ................................. 4-4
4-6. Optical section adjustment ..................................4-4
4-6-1. Light distribution ...............................................4-4
4-6-2. Scanner reference position .............................. 4-5
4-6-3. Lens reference position ....................................4-5
4-6-4. Diagonal distortion ............................................4-5
4-6-5. Image distortion ................................................. 4-5
4-6-6. Focus ..................................................................4-5
4-6-7. Image center position........................................4-6
4-6-8. Focus (Horizontal blurring)...............................4-6
4-6-9. Horizontal magnification ................................... 4-6
4-7. Leading and trailing edges erase width..............4-6
Chapter 4 Adjustment
4-1. Toner density
The toner density adjustment procedure is used to
adjust the black matte section density or the toner
consumption amount, etc.
1) Procedure
1. Call out the service mode.
(Press the Enlarge key and Reduce key for 5 sec.
in the Scale 1: 1 mode, and press the 0 key within
2 sec. after the local destination displayed)
Japan
US
2. Select 25 mode.
(Input 25 with the numeric keypad, and then press
the Start Print key.)
Europe
4-2. Fusing temperature
The fusing temperature adjustment is carried out to
improve the fusing performance when copying onto
thick paper, and to uncurl thin paper, etc.
1) Procedure
1. Call out the service mode.
(Press the Enlarge key and Reduce key for 5 sec.
in the Scale 1: 1 mode, and press the 0 key within
2 sec. after the local destination displayed)
Japan
US
2. Select 25 mode.
(Input 25 with the numeric keypad, and then press
the Start Print key.)
Europe
3. Select address 84 (toner density control setting).
(Input 84 with the numeric keypad, and then press
the Start Print key.)
4. Change the setting data to the required data (1 to 5).
(Input the data with the numeric keypad, and then
press the Start Print key.)
Data Toner density
1 Lighter
2
↑
3 Default value
4
↓
5 Darker
3. Select address 80 (Fusing temperature control
1
setting).
(Input 80 with the numeric keypad, and then press
the Start Print key.)
4.
Change the setting data to the required data (1 to 5)
(Input the data with the numeric keypad, and then
Data Fusing temperature Remarks
1 182ºC Lower
2 185ºC
3 188ºC Default value
4 190ºC
5 193ºC Higher
.
↑
↓
5. Press the Clear/Stop key until the normal mode
appears (3 presses).
(When the Clear key is pressed once, the state
will return to the previous state.)
Note: After changing this setting, the changed
toner density will not be achieved immediately.
MODEL
1312
SERVICE HANDBOOK
MANUAL
REVISED EDITION
press the Start Print key.)
5. Press the Clear/Stop key until the normal mode
appears (3 presses).
(When the Clear key is pressed once, the state will
return to the previous state.)
DATA
PAGE
4-1
1
May.1999
4-1
REPLACEMENT
METHOD
Chapter 4 Adjustment
4-3. Exposure voltage
The exposure lamp voltage adjustment is carried out
to change the adjustment width of the density control
knob on the operation panel.
1) Procedure
1. Call out the service mode.
(Press the Enlarge key and Reduce key for 5
sec. in the Scale 1: 1 mode, and press the 0 key
within 2 sec. after the local destination displayed)
Japan
US
2. Select 36 mode.
(Input 36 with the numeric keypad, and then
press the Start Print key.)
3. Select the code to be changed (86 to 90: AVR
adjustment 1 to 5).
(Example: Input 88 with the numeric keypad, and
then press the Start Print key.)
Europe
4. Change the setting data to the required data (01 to
64).
(Input the data with the numeric keypad, and then
press the Start Print key.)
Changed data
(example: 42) blinks
Changed data is
set
5. When the Start Print key is pressed again, a test
copy of the settings after the changes can be
made.
6. After copying, the status will return to step 4. Thus,
if the density is not as required, repeat the procedure from step 4.
7. When completed with the adjustment, press the
Clear/Stop key until the normal mode appears (3
presses).
(When the Clear key is pressed once, the state
will return to the previous state.)
4-4. Image position
4-4-1. Center position
If the position of the copy is mis-centered, adjust the
fixing position (four screws) of the document scale or
the cassette fixing position (two screws).
Adjustment data
(example: 32) blinks
1
Code Adjustment details Adjustment range
86 Center density in
enlargement.
(Adjustment range:
Approx. 43V to 67V)
87 Center density in
reduction.
(Adjustment range:
Approx. 43V to 67V)
88 Max. density in 01 to 64
life size.
(Adjustment range:
Approx. 55V to 80V)
89 Center density in
life size.
(Adjustment range:
Approx. 43V to 67V)
90 Min. density in
life size.
(Adjustment range:
Approx. 30V to 55V)
Document
Copy
Copy
Note: When adjusting the center position of a manual
feed copy, since the manual feed guide is fixed,
align the document scale to the manual feed
side first, and then align the cassette’s fixing
position.
MODEL
MANUAL
REVISED EDITION
DATA
PAGE
METHOD
4-2
1312
SERVICE HANDBOOK
1
May.1999
4-2
REPLACEMENT
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