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November 2003 © TOSHIBA TEC 3 - 1 e-STUDIO3511/4511 ADJUSTMENT
Drum
Main charger wire
Main charger grid
Transfer belt
1st transfer roller
2nd transfer roller
Image guality sensor
Laser optical unit
Drum cleaning blade
Drum cleaner brush
END
Adjust the image quality if necessary.
(
Chapter 3.5, 3.6, 3.7)
3. ADJUSTMENT
3.1 Adjustment Order (Image Related Adjustment)
This chapter mainly explains the procedures for image related adjustment. When replacing
components which have other specified instructions for adjustment, those specified instructions are to
be obeyed in priority.
In the following diagram, the solid lines with arrow lead to essential adjustments, while the dotted lines
lead to adjustments to be performed if necessary.
Parts to be replaced
Developer material
Item to be adjusted
3.2 Adjustment of the auto-toner sensor
Code in mode 05
200, 201, 202, 203, 204, 206
Item to be adjusted
3.3 Adjustment of image quality control /
Automatic initialization of image
quality control
Code in mode 05
396
Items
3.4.2 Paper alignment at the registration roller
(a) Reproduction ratio of primary scanning direction
(b) Primary scanning data laser writing start position
(c) Reproduction ratio of secondary scanning direction
(d) Transfer belt cleaning unit contact timing adjustment
(e) Transfer belt cleaning unit release timing adjustment
(f) Secondary scanning data laser writing start position
(g) Primary scanning data laser writing start position at
duplexing
(a) Image distortion
(b) Reproduction ratio of primary scanning direction
(c) Image location of primary scanning direction
(d) Reproduction ratio of secondary scanning direction
(e) Image location of secondary scanning direction
(f) Top margin
(g) Right margin
(h) Bottom margin
3.4.4
Scanner
related
adjustment
Order
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
3.4 Image dimensional adjustment
Code in mode 05
448, 449, 450,
452, 455, 457,
458, 459, 460,
461, 462, 463
401
411
421
284
285
441, 440, 444
443, 442, 445
498
–
405
306
340
305
430
432
433
3.4.3
Printer
related
adjustment
Code in mode 05
1642, (1643, 580)
1000, 1001, 1002, 1003
Item to be adjusted
3.5.1 Automatic gamma adjustment (PPC)
3.6.1 Automatic gamma adjustment (PRT)
04/05