Toshiba e-STUDIO556 Service Manual page 405

6. ADJUSTMENT
6.1 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
6.2 Adjustment of the auto-toner sensor
Order
1
6.3.2 Paper alignment at the registration roller
6.3.3
2 Printer
related
adjustment
3
4
5
6
7
6.3.4
Scanner
related
8
adjustment
9
10
11
12
13
14
Item to be adjusted
6.4.1 Automatic gamma adjustment
* : Only for e-STUDIO556/656/756/856
END
© 2011 - 2014 TOSHIBA TEC CORPORATION All rights reserved
Parts to be replaced
Photoconductive drum
Transfer roller
Main charger grid
Code in mode 05
6.3 Image dimensional adjustment
Items
[A] Reproduction ratio of primary
scanning direction
[B] Primary scanning data laser writing
start position
[C]Reproduction ratio of secondary
scanning direction
[D] Secondary scanning data laser writing
start position
[E] Primary scanning data laser writing
start position at duplexing
[A] Image distortion
[B] Reproduction ratio adjustment of the
primary scanning direction
[C] Image position adjustment of the
primary scanning direction
[D] Reproduction ratio adjustment of the
secondary scanning direction
[E] Image position adjustment of the
secondary scanning direction
[F] Top margin
[G] Right margin
[H] Bottom margin
Code in mode 05
Adjust the image quality if necessary.
Fig. 6-1
6 - 1
Laser optical unit
Drum cleaning blade
2000
Code in mode 05
4108, 4109, 4100, 4101, 4110,
4111, 4103, 4104, 4105, 4106,
4107, 4115, 4116, 4117, 4118,
4119, 4120, 4579
4402, 4560, 4561, 4058, 4059,
4061, 4063, 4060, 4062
7165
(Chapter 6.3, 6.4, 6.5, 6.6, 6.7)
e-STUDIO556/656/756/856/557/657/757/857
4001
4006
4009*
4527
-
4000
3030
3032
3031
4050
4052
4053
ADJUSTMENT
6