Setting Adjustment; Image Related Adjustment; Adjustment Order - Toshiba e-STUDIO 5540C Service Manual

6.

SETTING ADJUSTMENT

6.1

Image Related Adjustment

6.1.1

Adjustment Order

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.
Developer material
Item to be adjusted
6.1.2 Adjustment of the auto-toner sensor
Item to be adjusted
6.1.3 Adjustment of image quality control /
Forced performing of image quality closed-loop control
Item to be adjusted
6.1.4 Adjustment of color registration control
Order
1
2
3
4
5
6
7
8
9
10
11
12
13
14
Item to be adjusted
6.2.1 Automatic gamma adjustment ( PPC )
6.3.1 Automatic gamma adjustment ( PRT, 600dpi)
6.3.1 Automatic gamma adjustment ( PRT, 1200dpi)
END
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Parts to be replaced
Photoconductive drum
1st transfer roller
Main charger grid
2400, 2401, 2402, 2403, 2404, 2406
6.1.5 Image dimensional adjustment
Items
6.1.6 Paper alignment at the registration roller .
6.1.7 (a) Reproduction ratio of primary scanning direction
Printer
(b) Primary scanning data laser writing start position
related
(c) Reproduction ratio of secondary scanning direction
adjustment
(d) Secondary scanning data laser writing start position
(e) Primary scanning data laser writing start position at
duplexing
6.1.8 (a) Image distortion
Scanner
(b) Reproduction ratio of primary scanning direction
related
(c) Image location of primary scanning direction
adjustment
(d) Reproduction ratio of secondary scanning direction
(e) Image location of secondary scanning direction
(f) Top margin
(g) Right margin
(h) Bottom margin
Adjust the image quality if necessary.
*. e-STUDIO5540C/6540C/6550C only
Fig.6-1
6 - 1
Laser optical unit
Drum cleaning blade
Image position aligning sensor
Code in mode 05
Code in mode 05
2742
Code in mode 05
4719
Code in mode 05
4119, 4100, 4101, 4103, 4104,
4105, 4106, 4107, 4108, 4109,
4110, 4111, 4115, 4116, 4117,
4118, 4120, 4122, 4123, 4124,
4125, 4126, 4127, 4128, 4129,
4580, 4581, 4582, 4583, 4584,
4585, 4586, 4587, 4588, 4589,
4590, 4591, 4592, 4593, 4600,
4601, 4602, 4603, 4604, 4605,
4606, 4607, 4608, 4609, 4610,
4611, 4612, 4613, 4615
4402, 4058, 4059, 4060, 4061,
4062, 4560
Code in mode 05
7869, ( 7871, 7165* )
8008, 8004 - 0 to 8
8009, 8005 - 0 to 8
( Chapter 6.2, 6.3, 6.4, 6.5 )
e-STUDIO5540C/6540C/6550C/5560C/6560C/6570C
Transfer belt
Needle electrode
Image quality sensor
4772
4006
4526
4019
–
4773
3030
3032
3031
4050
4052
4053
SETTING ADJUSTMENT
6