MX-M264U ADJUSTMENTS AND SETTINGS 5 – 1
MX-M264U
Service Manual
[5] ADJUSTMENTS AND SETTINGS
1. General
Each adjustment item in the adjustment item list is associated with
a specific Job number. Perform the adjustment procedures in the
sequence of Job numbers from the smallest to the greatest.
However, there is no need to perform all the adjustment items. Per-
form only the necessary adjustments according to the need.
Unnecessary adjustments can be omitted. Even in this case, how-
ever, the sequence from the smallest to the greatest Job number
must be observed.
If the above precaution should be neglected, the adjustment would
not complete normally or trouble may occur.
2. Adjustment item list
Job No. Adjustment item list Simulation
ADJ 1 Adjust the developing unit 1A Developing doctor gap adjustment
1B MG roller main pole position adjustment
1C Toner density control reference value setting 25-2
ADJ 2 Adjusting high voltage values 2A Adjust the main charger grid voltage 8-2
2B Adjust the developing bias voltage 8-1
2C Transfer current and voltage adjustment 8-6
ADJ 3 Image lead edge position,
image loss, void area, image off-
center, image magnification
ratio adjustment (Automatic
adjustment)
3A Print image off-center automatic adjustment (Print engine) (Each paper feed tray) 50-28
3B Copy mode image lead edge position, image loss, void area, image off-center, sub scanning
direction image magnification ratio automatic adjustment (Scanner) (Document table mode)
50-28
3C Copy mode image lead edge position, image loss, void area, image off-center, sub scanning
direction image magnification ratio automatic adjustment (Scanner) (RSPF mode)
50-28
ADJ 4 Scan image distortion
adjustment (Document table
mode)
4A Scanner (reading) unit parallelism adjustment
4B Scan image (sub scanning direction) distortion adjustment
4C Scan image (main scanning direction) distortion adjustment
ADJ 5 Scanner image skew adjustment (RSPF mode) 64-2
ADJ 6 Scan image focus adjustment 48-1
ADJ 7 Print lead edge image position adjustment (Printer mode) 50-5
ADJ 8 Image density adjustment 8A Scanner calibration (CCD calibration) 63-3 (63-5)
8B Copy / Image send / FAX image
quality adjustment (Individual
adjustment)
8B
(1)
Monochrome copy density adjustment (for each
monochrome copy mode) (separately for the
low-density area and the high-density area) (No
need to adjust normally)
46-2
8B
(2)
Automatic monochrome (Copy/Scan/FAX)
mode document density scanning operation
(exposure operation) conditions setting
(Normally no need to set)
46-19
8B
(3)
Document low density image density
reproduction adjustment in the automatic
monochrome (Copy/Scan/FAX) mode (No need
to adjust normally) (Background density
adjustment in the scanning section)
46-32
8B
(4)
Copy/Scan low density image density
adjustment (for each mode) (No need to adjust
normally) (Effective only for the color scan
function)
46-63
8B
(5)
Monochrome (Copy/Scan/FAX) mode color
document reproduction adjustment (No need to
adjust normally)
46-37
8B
(6)
RSPF mode (Copy/Scan/FAX) density
adjustment (No need to adjust normally)
46-9
ADJ 9 Paper size sensor adjustment 9A Manual paper feed tray paper size (width) sensor adjustment 40-2
9B RSPF paper feed tray document size (width) sensor adjustment 53-6
ADJ 10 Document size detection
adjustment
10A Document size sensor detection point adjustment 41-1
10B Adjust the sensitivity of the original size sensor 41-2
ADJ 11 Touch panel coordinate setting 65-1
ADJ 12 Print image position, void area,
off-center adjustment (Print
engine) (Manual adjustment)
12A Print image print area adjustment (Print engine) (Manual adjustment) 50-10/50-1
12B Print image off-center adjustment (Print engine) (Manual adjustment) 50-10
ADJ 13 Scan image magnification ratio
adjustment (Manual adjustment)
13A Scan image magnification ratio adjustment (main scanning direction) (Manual adjustment)
(Document table mode)
48-1
13B Scan image magnification ratio adjustment (sub scanning direction) (Manual adjustment)
(Document table mode)
48-1/48-5
13C Scan image magnification ratio adjustment (main scanning direction) (Manual adjustment)
(RSPF mode)
48-1
13D Scan image magnification ratio adjustment (sub scanning direction) (Manual adjustment)
(RSPF mode)
48-1
ADJ 14 Scan image off-center
adjustment (Manual adjustment)
14A Scan image off-center adjustment (Manual adjustment) (Document table mode) 50-12
14B Scan image off-center adjustment (Manual adjustment) (RSPF mode) 50-12/50-6
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