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