Reproduction Ratio Adjustment Of The Primary Scanning Direction - Toshiba e-STUDIO650 Service Handbook

(b) Reproduction ratio adjustment of the primary scanning direction (fine adjustment of the polygonal
motor rotation speed/PPC)
1. Turn ON the power while the digital keys [0] and [5] are pressed simultaneously.
mode)
2. Place a ruler on the original glass (along the direction from the rear to the front of the machine).
3. Select the condition of 2nd cassette (A3/LD) and 100% and press the [COPY] key to make a copy.
4. Measure the distance A from 10 mm to 210 mm of the copied image of the ruler.
5. Check if the distance A is within the range of 200±0.5 mm.
6. If not, change the value taking the following procedure, and repeat the steps 3 to 5 until the distance
falls within range.
<Procedure> (Adjustment mode)
(Enter a value (acceptable values : 0 to 255) with the digital keys)
Press the [SET] or the [INTERRUPT] key to store the value in the RAM.
("100% A" is displayed.)
* The larger the adjustment value, the higher the reproduction ratio and the longer the
distance A become (approx. 0.5 mm/5 steps).
JUNE 2002 © TOSHIBA TEC
(Enter the code [405] with the digital keys)
Feeding direction
3 - 13
(Adjustment
[START]
Copied image of the ruler
e-STUDIO550/650/810 ADJUSTMENT