Adjustments; General; Adjustment Item List - Sharp MX-2300 G Service Manual

[6] ADJUSTMENTS

MX2700N

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 Developing doctor gap adjustment
ADJ 2 Developing roller main pole position adjustment
ADJ 3 Toner density reference control level setting
ADJ 4 High voltage adjustments
ADJ 5 Image density sensor, image registration sensor
adjustment
ADJ 6 Image skew adjustment (LSU unit)
ADJ 7 OPC drum phase adjustment
ADJ 8 Print engine image magnification ratio adjustment
(BK) (Main scanning direction) (Print engine section)
ADJ 9 Image off-center adjustment (Print engine section)
ADJ 10 Image registration adjustment (Print engine section)
ADJ 11 Scan image distortion adjustment
ADJ 12 Scan image focus adjustment (CCD unit position adjustment)
ADJ 13 Scan image skew adjustment (RSPF) (Refer to MX-RPX1 SM.)
ADJ 14 Scan image magnification ratio adjustment
(Document table mode)
ADJ 15 Scan image magnification ratio adjustment (RADF
mode) (Refer to the MX-RPX1 SM.)
ADJ 16 Scan image off-center adjustment
ADJ 17 Print area (Void area) adjustment (Print engine section)
ADJ 18 Copy image position, image loss adjustment
ADJ 19 Print lead edge image position adjustment (Printer mode) (Print engine section)
ADJ 20 Copy color balance/density adjustment
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.
Adjustment item list
ADJ 4A Main charger grid voltage adjustment
ADJ 4B Developing bias voltage adjustment
ADJ 4C Transfer voltage adjustment
ADJ 5A Color image density sensor calibration
ADJ 5B Color image density sensor, black image density sensor, image
registration sensor adjustment
ADJ 7A OPC drum phase adjustment (Auto adjustment)
ADJ 7B OPC drum phase adjustment (Manual adjustment)
ADJ 8A Print engine image magnification ratio adjustment (BK) (Main
scanning direction) (Print engine section) (Manual adjustment)
ADJ 10A Image registration adjustment (Main scanning direction, sub
scanning direction) (Auto adjustment)
ADJ 10B Image registration adjustment (Main scanning direction) (Manual
adjustment)
ADJ 10C Image registration adjustment (Sub scanning direction) (Manual
adjustment)
ADJ 11A Scanner (reading) unit parallelism adjustment
ADJ 11B Scan image (sub scanning direction) distortion adjustment
ADJ 11C Scan image (main scanning direction) distortion adjustment
ADJ 11D Scan image distortion adjustment (Whole scanner)
ADJ 14A Scan image magnification ratio adjustment (Main scanning
direction) (Document table mode)
ADJ 14B Scan image magnification ratio adjustment (Sub scanning direction)
(Document table mode)
ADJ 15A Scan image magnification ratio adjustment (Main scanning
direction) (RADF mode) (Refer to the MX-RPX1 SM.)
ADJ 15B Scan image magnification ratio adjustment (Sub scanning direction)
(RADF mode) (Refer to the MX-RPX1 SM.)
ADJ 16A Scan image off-center (Document table mode)
ADJ 16B Scan image off-center (RSPF mode) (Refer to the MX-RPX1 SM.)
ADJ 18A Copy image position, image loss adjustment (Document table
mode)
ADJ 18B Copy image position, image loss adjustment (RSPF mode) (Refer to
the MX-RPX1 SM.)
ADJ 20A CCD gamma adjustment (CCD calibration) (Normal document copy
mode)
ADJ 20B Copy color balance adjustment (Auto adjustment)
ADJ 20C Copy color balance adjustment (Manual adjustment)
ADJ 20D Copy density adjustment (Each color copy mode) (Whole
adjustment) (Normally unnecessary to adjust)
ADJ 20E Copy density adjustment (each monochrome copy mode) (Whole
adjustment) (Normally unnecessary to adjust)
ADJ 20F Copy color balance adjustment (Color balance adjustment at each
density level in each color copy mode) (Normally not required)
ADJ 20G Monochrome copy density adjustment (Density adjustment at each
density level in each monochrome copy mode) (Normally not
required)
ADJ 20H Gamma/density adjustment in the text image edge section
(Normally not required)
MX-2300/2700 N/G ADJUSTMENTS 6 – 1
Simulation
8-2
8-1
8-6
44-13
44-2
64-1/61-4
50-22
44-31
50-10
50-10
50-22
50-20
50-21
48-1
48-1
48-1
48-1
50-12
50-12
50-10/50-1
50-1 (50-2)
50-6 (50-7)
50-5
63-3 (63-5)
46-24
46-21
46-1
46-2
46-10
46-16
46-27