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[C] Reproduction ratio of secondary scanning direction (Fine adjustment of transfer belt motor
rotation speed)
Code
Sub code
487
0
1
2
3
4
5
6
7
8
If the sub code "0" of 05-487 is adjusted, the adjustment values of sub codes 1 to 8 are also changed
automatically, being operated with the adjusted value, according to the proper parameter. Basically,
adjusting only the sub code "0" completes all the adjustment of PRT, PPC and FAX.
[C-1]
Confirmation of 05-487-0
1. While pressing [0] and [5] simultaneously, turn the power ON. → (Adjustment Mode)
2. Press [98] → [FAX]. (A grid pattern with 10 mm squares is printed out. Use A3/LD from the
2nd drawer.)
3. Measure the distance C from the 2nd line at the leading edge of the paper to the 22nd line of
the grid pattern.
* Normally, the 1st line of the grid pattern is not printed.
4. Check if the distance C is within 200±0.5 mm.
5. If not, perform the procedure in "[C-2] Adjustment of 05-487-0" to change the values and
measure the distance C again.
6. Perform the color registration (4719) after the adjustment.
[C-2]
Adjustment of 05-487-0
(Adjustment Mode) → (Key in the code [487]) → [START] → (Key in the sub-code [0])
→ [START] → (Key in a value (acceptable values: 0 to 255))
→ [ENTER] or [INTERRUPT] (Stored in memory)
* When the value is not within the recommended values, the trailing edge area of the image may be
out of position for the paper length or the density at the trailing edge area of the image may become
lower. Perform the adjustment confirming the image.
→ "100% A" is displayed
→ Press [98] → [FAX] → (A grid pattern is printed out.)
* The larger the adjustment value is, the longer the distance C becomes (approx. 0.1 mm/ step).
→ (Key in the code [4719]) → [START] → (Enforced color registration)
Notes:
1. The grid pattern outputted by pressing [0][5] → [98] → [FAX] is the one of PRT (05-487-0).
Even though the sub codes "1" to "8" are adjusted, the result cannot be confirmed in the grid
pattern outputted by pressing [0][5] → [98] → [FAX].
2. When "05-487-0" is performed, a proper value is automatically calculated for the size of an
image in each function mode (copy/printer/Fax) or at each speed (normal speed/reduced
speed/high speed). The speed of the transfer belt motor is also adjusted. Therefore, use the
above default value other than the sub code "0," unless otherwise required.
© 2008 - 2011 TOSHIBA TEC CORPORATION All rights reserved
Function
PRT
When the value increases, the reproduction ratio in the
secondary scanning direction becomes larger.
FAX
(Approx. 0.1 mm/1steps)
PPC
PRT
FAX
PPC
PRT
FAX
PPC
e-STUDIO2020C/2330C/2820C/2830C/3520C/3530C/4520C
3 - 17
Remarks
ADJUSTMENT
3
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