Adjustment Order (Copy Image Related Adjustment) - Toshiba FC-22 Manual

1.3 Adjustment Order (Copy Image Related Adjustment)

The diagram below explains the main 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 ajustments, while the dotted lines
lead to adjustments to be performed if necessary.
Developer material
Adjustment item
1.4 Automatic adjustment of the auto-
toner circuit
Adjustment item
1.5 Automatic initialization of image
quality control
Adjustment
order
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
Adjustment item
1.7 Automatic adjustment of gamma correction
END
January 2000 © TOSHIBA TEC
Code in mode 05
200-204, 221
Code in mode 05
879
Copy image dimensional adjustment
1.6.1 Paper alignment (paper buckle) at the main registration roller
1.6.2 Feed motor speed adjustment
1.6.3
(a) Reproduction ratio adjustment of primary scanning direction
Printer
(b) Primary-scanning data write start position adjustment
related
(c) Reproduction ratio adjustment of secondary scanning direction 401
adjustment
(d) Secondary-scanning data write start position adjustment
(Fine adjustment of feed motor rotation speed)*
(a) Image distortion adjustment
1.6.4
(b) Image skewing adjustment
Scanner
(c) Primary-scanning reproduction ratio (scanner)
related
(d) Scanner copy length reproduction ratio adjustment
adjustment
(e) CCD primary scanning start position deviation
(f) Secondary-scanning data write start position adjustment (Copier)
(g) Scanner (secondary scanning) start position deviation
(h) Right margin (Printed page right edge void adjustment)
(i) Bottom margin (Printed page trailing edge void adjustment)
Code in mode 05
643
1.8 Density adjustment
1.9 Color balance adjustment
1.10 Offset amount for processing background
1.11 Judgement threshold for ACS
1.12 AI mode setting
1.13 Sharpness adjustment
1 - 45
Parts to be replaced
Processing unit (EPU)
Drum
Main charger wire
Main charger grid
Items
* "Fine adjustment of feed motor rotation speed"
should be adjusted after printer related adjustment.
Image quality adjustment
Items
Transfer/transport unit
Transfer belt
Code in
mode 05
439 - 452
406
400
470
474
404
–
–
482
104
106, 108
484 - 490
105
427
428
Code in mode 05
550 - 589
779 - 789
698 - 717
675
678, 682
730 - 745
FC-22 ADJUSTMENT