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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 4-2. Fusing temperature
The toner density adjustment procedure is used to The fusing temperature adjustment is carried out to
adjust the black matte section density or the toner improve the fusing performance when copying onto
consumption amount, etc. thick paper, and to uncurl thin paper, etc.
1) Procedure 1) Procedure
1. Call out the service mode. 1. Call out the service mode.
(Press the Enlarge key and Reduce key for 5 sec. (Press the Enlarge key and Reduce key for 5 sec.
in the Scale 1: 1 mode, and press the 0 key within in the Scale 1: 1 mode, and press the 0 key within
2 sec. after the local destination displayed) 2 sec. after the local destination displayed)
Japan US Europe Japan US Europe
2. Select 25 mode. 2. Select 25 mode.
(Input 25 with the numeric keypad, and then press (Input 25 with the numeric keypad, and then press
the Start Print key.) the Start Print key.)
3. Select address 84 (toner density control setting). 1 3. Select address 80 (Fusing temperature control
(Input 84 with the numeric keypad, and then press setting).
the Start Print key.) (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 4. Change the setting data to the required data (1 to 5).
press the Start Print key.) (Input the data with the numeric keypad, and then
Data Toner density Data Fusing temperature Remarks
1 Lighter 1 182