Sharp Mx 2300n Service Manual

MX-2300/2700 N/G  ADJUSTMENTS  6 – 27
 
16Scan image off-center adjustment
This adjustment is required in the following cases:
* When the scanner (reading) section is disassembled.
* When the scanner (reading) unit is replaced.
* When the RSPF section is disassembled.
* When the RSPF unit is installed.
* When the RSPF unit is replaced.
* When a U2 trouble occurs.
* When the scanner control PWB is replaced.
* When the EEPROM on the scanner control PWB is replaced.
 16-A Scan image off-center (Document...

MX-2300/2700 N/G  ADJUSTMENTS  6 – 28 2) Set A4 (11 x 8.5) paper to all the trays, and select the set item
J with the scroll key. Enter the value corresponding to the
adjustment target paper feed tray.
3) Press [EXECUTE] key.
The adjustment pattern is printed.
4) Check the adjustment pattern to confirm that the items below
are in the range of the standard values.
(Note) Feed paper from all the paper feed trays to confirm.
If the above condition is not satisfied, or if it is set to a desired
condition,...

MX-2300/2700 N/G  ADJUSTMENTS  6 – 29 1) Place a scale on the document table as shown in the figure
below.
Place a scale so that it is in parallel with the scanning direction
and that its lead edge is in contact with the document guide
plate.
Place white paper on the document table so that the scale lead
edge can be seen.2) Enter the simulation 50-1 mode.
3) Set RRCA, LEAD, and SIDE to the default values.
4) Perform the image lead edge reference position adjustment.
Press [CLOSE] key, and shift from the...

MX-2300/2700 N/G  ADJUSTMENTS  6 – 30
 18-B Copy image position, image loss adjust-
ment (RSPF mode) (Refer to the MX-RPX1
SM.)
 
19Print lead edge image position
adjustment (Printer mode) (Print
engine section)
This adjustment is required in the following cases:
* When the resist roller section is disassembled.
* When the LSU is replaced or removed.
* When a U2 trouble occurs.
* When the PCU PWB is replaced.
* When the EEPROM on the PCU PWB is replaced.
(Caution)
This adjustment is performed by the user...

MX-2300/2700 N/G  ADJUSTMENTS  6 – 31 (The following items affect the copy color balance/density
adjustment, and must be checked and adjusted before execu-
tion of the image quality adjustments.)
1) The following adjustment items must be adjusted properly.
2) The set values of the following simulations must be set to the
default values.
3) The following items (correction functions) of SIM 44-1 must be
set to ENABLE (default).(The following items affect the copy color balance/density
adjustment, but it is...

MX-2300/2700 N/G  ADJUSTMENTS  6 – 32 (2) Flowchart of the copy color balance/density adjustment procedures
The necessary work items for each condition are marked with ∗.
START
9Ý
Process correction is forcibly
performed. (SIM 44-6)
Execute the half tone image
correction. (SIM 44-26)
Check the copy color balance/density.
(Manual operation) Text/Printed photo mode
(Test chart UKOG-0162FCZZ/
UKOG-0283FCZZ is used.)
Are the copy
color balance and density
at satisfactory
levels?NoIs the CCD replaced?Yes
Set...

MX-2300/2700 N/G  ADJUSTMENTS  6 – 33
4
Change the color balance/density
adjustment factory targets.
(SIM 63-11)
Make the factory color balance target
(when adjusting the copy color
balance/density with SIM 46-24) same
as the service color balance target and
the color balance target when adjusting
the density. (SIM63-8)
NoCan the
copy color balance and
density be adjusted to satisfactory
levels with the fine
adjustment?
Perform the manual adjustment of ADJ 20C
copy color balance, density adjustment. (SIM...

MX-2300/2700 N/G  ADJUSTMENTS  6 – 34 (3) Copy color balance and density check
(Note)
Before checking the coy color balance and density, be sure to exe-
cute the following jobs.
* Execute the high density image correction (Process correction)
forcibly. (SIM 44-6)
* Execute the half-tone image correction forcibly. (SIM 44-26)
(Method)
Make a copy of the gray test chart (UKOG-0162FCZZ) and a copy
of the servicing color test chart (UK0G-0283FCZZ), and check that
they are proper.
a. Note for execution of the...

MX-2300/2700 N/G  ADJUSTMENTS  6 – 35
 20-B Copy color balance adjustment (Auto
adjustment)
This adjustment is required in the following cases:
* When a consumable part (developer, OPC drum, transfer belt) is
replaced.
* When the CCD unit is replaced.
* When a U2 trouble occurs.
* When the MFP PWB is replaced.
* When the EEPROM on the MFP PWB is replaced.
* When the scanner control PWB is replaced.
* When the EEPROM on the scanner control PWB is replaced.
a. General
The color balance adjustment (auto...

MX-2300/2700 N/G  ADJUSTMENTS  6 – 36 5) Press [OK] key on the operation panel.
According to data of this adjustment, the initial setting of the
half tone image correction is performed.
Remark:
After pressing [OK] key, the initial setting of the half tone image
correction is started. During the operation, NOW REGISTER-
ING THE NEW TARGET OF HALFTONE PROCON. is dis-
played. This operation takes several minutes.
After completion of the operation, Please quit this mode is
displayed.
Do not cancel the...