Adjustments And Settings; Adjustment Item List - Sharp MX-2314N Service Manual

MX-3114N

[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.

2. Adjustment item list

Job No.
ADJ 1 Adjust the developing unit
ADJ 2 Adjusting high voltage values
ADJ 3 Image density sensor
adjustment
ADJ 4 Image lead edge position, image
loss, void area, image off-center,
image magnification ratio
adjustment
(Automatic adjustment)
ADJ 5 Print engine image distortion
adjustment / OPC drum phase
adjustment / Color registration
adjustment (Print engine
section)
ADJ 6 Scan image distortion
adjustment
(Document table mode)
ADJ 7 Scanner image skew adjustment (RSPF mode)
ADJ 8 Scan image focus adjustment
ADJ 9 Print lead edge image position adjustment (Printer mode)
ADJ 10/ Color balance and density
SET1 adjustment
Adjustment item list
1A Adjust the developing doctor gap
1B Adjust the developing roller main pole position
1C Toner density control reference value setting
2A Adjust the main charger grid voltage
2B Adjust the developing bias voltage
2C Transfer current and voltage adjustment
3A Image density sensor adjustment
4A Print image main scanning direction automatic magnification ratio adjustment (Print engine)
4B Print image off-center automatic adjustment (Print engine) (Each paper feed tray)
4C 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)
4D Copy mode image lead edge position, image loss, void area, image off-center, sub scanning
direction image magnification ratio automatic adjustment (Scanner) (RSPF mode)
5A Print engine image distortion adjustment (Manual adjustment) / OPC drum phase adjustment
(Automatic adjustment) / Color registration adjustment (Automatic adjustment)
5B Print engine image skew (LSU skew) adjustment (Manual adjustment)
(No need to adjust normally)
5C Color registration offset adjustment (No need to adjust normally)
6A Scanner (reading) unit parallelism adjustment
6B Scan image (sub scanning direction) distortion adjustment
6C Scan image (main scanning direction) distortion adjustment
Note before execution of the
image quality adjustment
Copy image quality check
Printer image quality check
10A Scanner calibration (CCD
calibration)
SET Color balance adjustment target
1 setup
10B Copy/Printer color balance and
density adjustment (Automatic
adjustment)
(Basic adjustment)
10C Copy image quality adjustment
(Basic adjustment)
10D Copy / Image send / FAX image
quality adjustment (Individual
adjustment)
MX-3114N ADJUSTMENTS AND SETTINGS 5 – 1
Service Manual
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.
1A Copy color balance adjustment target setup
1B Printer color balance adjustment target setup
10C Copy color balance and density adjustment
(1) (Automatic adjustment)
10C Copy color balance and density adjustment
(2) (Manual adjustment)
10D Color copy density adjustment (for each color copy
(1) mode) (separately for the low-density area and the
high-density area)
(No need to adjust normally)
10D Monochrome copy density adjustment (for each
(2) monochrome copy mode) (separately for the low-
density area and the high-density area)
(No need to adjust normally)
10D Color copy color balance, gamma adjustment
(3) (for each color copy mode)
(No need to adjust normally)
10D Monochrome copy density, gamma adjustment (for
(4) each monochrome copy mode)
(No need to adjust normally)
Simulation
25-2
8-2
8-1
8-6
44-2
50-28
50-28
50-28
50-28
50-22
50-20 (64-1)
50-20
64-2
48-1
50-5
63-3 (63-5)
63-7/8/11
67-26/27/28
46-74
46-24
46-21
46-1
46-2
46-10
46-16