Reproduction Ratio Of Secondary Scanning Direction; Confirmation Of 05-4526-0; Adjustment Of 05-4526-0 - Toshiba e-STUDIO 5540C Service Manual

[C] Reproduction ratio of secondary scanning direction (Fine adjustment of transfer belt motor
rotation speed)
Code Sub code
4526 0
1
2
3
When the sub code "0" is performed in the code "05-4526", the proper value is automatically calculated
for the size of an image from the sub code 1 to 3. Due to this, 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.
[C-1]

Confirmation of 05-4526-0

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 05-4526-0" to change the values and
measure the distance C again.
6. Perform the color registration (4719) after the adjustment.
[C-2]

Adjustment of 05-4526-0

(Adjustment Mode)  (Key in the code [4526])  [START]  (Key in the sub-code [0])
 [START] (Key in a value (acceptable values: 0 to 255))
 [OK] 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 lighter. 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:
The grid pattern outputted by pressing [0][5] [98] [FAX] is the one of PRT (05-4526-0). Even
though the sub codes "1" to "11" are adjusted, the result cannot be confirmed in the grid pattern
outputted by pressing [0][5]  [98]  [FAX].
Remarks:
For long paper (length: 484 to 1,200 mm) and A3/LD, it is recommended to adjust the distance C
above within the range of 199.5 to 200 mm otherwise the margin of the trailing edge may be
deleted.
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Item to be
adjusted
Normal speed When the value increases, the reproduction ratio in the secondary
(Color) scanning direction becomes larger.
(Approx. 0.1 mm/1step)
Decelerator by
1/2
Decelerator by
1/3
High speed
6 - 19
Remarks
e-STUDIO5540C/6540C/6550C/5560C/6560C/6570C
SETTING ADJUSTMENT
6