Sharp Mx 2310u Owners Manual

							MX-3610N  ADJUSTMENTS AND SETTINGS  4 – 65
 
10-D(18) 
Watermark adjustment 
(Normally not required) 
(26cpm/36cpm/31cpm(A) machine)
General (Purpose):
This adjustment is used to adjust  the reproduction capability of the
watermark in the copy/printer mode.
This adjustment is used for watermark documents (primary output).
The result of this adjustment affects the result of watermark print
(secondary output).
In the printer mode, the watermark density can be adjusted by the
printer driver. That adjustment is  based on the result of this adjust-
ment. This adjustment must be performed in the following cases:
* When there is request from the user. (When a satisfactory result
is not obtained from the adjustment in the system setting mode.)
* When there is request from the user. (When a satisfactory result is not obtained from the adjustment with the printer driver.)
1) Enter the SIM 46-66 mode.
2) Select the PATTERN mode, then select an adjustment item in the following list according to the situation.
Normally there is no need to adjust the PATTERN mode (items
K and L), the COPY MODE, and the POSITION mode.
Item/Display ContentSetting 
range Default 
value Description
NOTE
A WOVEN DEN BK LOW Watermark density level (Color:  Black / Adjustment for light images) 0 - 255 15 The adjustment value is changed to increase or 
decrease the density of the watermark of 
background documents (primary output).
To increase the watermark density, increase the 
adjustment value.
To decrease the watermark density, decrease the 
adjustment value.
When the adjustment value is increased, the 
watermark area which is originally not reproduced 
becomes difficult to disappear.
When the adjustment value is decreased, the 
watermark area which is originally reproduced 
becomes easy to disappear.
B WOVEN DEN BK MIDDLE Watermark density level (Color: 
Black, Density: Standard) 0 - 255 19
C WOVEN DEN BK HIGH Watermark density level (Color:  Black, Density: Dark) 0 - 255 23
D WOVEN DEN C LOW Watermark density level (Color:  Cyan / Adjustment for light images) 0 - 255 19
E WOVEN DEN C MIDDLE Watermark density level (Color:  Cyan, Density: Standard) 0 - 255 23
F WOVEN DEN C HIGH Watermark density level (Color:  Cyan, Density: Dark) 0 - 255 27
G WOVEN DEN M LOW Watermark density level (Color:  Magenta / Adjustment for light 
images) 0 - 255 15
H WOVEN DEN M MIDDLE Waterma rk density level (Color: 
Magenta, Density: Standard) 0 - 255 18
I WOVEN DEN M HIGH Watermark density level (Color:  Magenta, Density: Dark) 0 - 255 21
J CONTRAST Contrast adjustment 0 - 255 2 This is used to adjust the variation in the watermark 
density when the adjustment value of the watermark 
print/contrast adjustment in the system setting is 
changed by 1.
When this value is increased, the variation is also 
increased. When the value is decreased, the 
variation is also decreased.
When the adjustment value is 0, the result of the 
contrast adjustment is not reflected. (* The 
adjustment value must be set to 1 or greater.)
K HT TYPE (POSI) For half-tone index watermark type 
positive 42  -  43 42 To reproduce the containing characters of watermark 
copy (secondary output) mo re clearly, set to 43.
In that case, however, the containing characters of 
the watermark document (primary output) can be 
easily reproduced. Normally 
set to the 
default.
L HT TYPE (NEGA) For half-tone index watermark type 
negative 42  -  43 42 To reproduce the containing characters of watermark 
copy (secondary output) mo re clearly, set to 43.
In that case, however, the containing characters of 
the watermark document (primary output) can be 
easily reproduced. 
						

							MX-3610N  ADJUSTMENTS AND SETTINGS  4 – 66
Changing adjustment values of adjustment items A - I and
trade off
3) Enter the adjustment value with 10-key and press [OK] key.
4) Make a copy, and check the adjustment result. Descriptions on the watermark
Kinds of 
watermarks  (Mode 
selected in 
the watermark  copy mode) Density 
value Adjustment 
values of 
adjustment  items A - I Effect
Characters 
appearing. Decrease. The adjustment 
value is 
decreased. The watermark images 
become easy to 
disappear.
The containing 
characters become 
lighter. 
Increase. The adjustment  value is 
increased. The containing 
characters become 
darker.
The watermark images 
become difficult to 
disappear.
Background 
appearing. Decrease. The adjustment 
value is 
decreased. The containing 
characters become easy 
to disappear.
The watermark images 
become easy to 
disappear.
Increase. The adjustment  value is 
increased. The watermark images 
become darker.
The containing 
characters become 
difficult to disappear.
Document
(Copy document or
Print data)
Watermark document
(Primary output)
(Copy or Printer output)
(This machine) Watermark copy
(Secondary output)
(This machine or other
company's machine)
Copy / Print
Copy
COPY INHIBITED
COPY INHIBITED
COPY INHIBITED
Containing
characters
Watermark 
colorThe watermark color is available in Cyan, Magenta, and 
Black.
Containing 
characters Characters embedded in a watermark, such as COPY 
INHIBITED, are called containing characters.
Kinds of 
watermarks There are two kinds: Character appearing and 
Background appearing.
When a watermark of Character appearing is copied, the 
background disappears and the containing characters 
appear.
When a watermark of Background appearing is copied, 
the watermark of the character area disappears and the 
containing characters bec
ome outline characters.
Principle of 
watermarks A watermark is composed of two dots: fine dots and rough 
dots.
Since fine dots disappear when copied, they are called 
disappearing patterns.
Since rough dots remain wh
en copied, they are called 
remaining patterns.
In a watermark of Character appearing, the background is 
a disappearing pattern and the  containing characters are 
remaining patterns.
In a watermark of Background appearing, the background 
is a remaining pattern and the containing characters are 
disappearing patterns.
Note for 
watermarks Watermarks have the following characteristics:
• A watermark is presumed to be synthesized with text 
documents. If it is used with photos or images, the 
containing characters may be seen in the watermark 
document (primary output) or  the containing characters 
may not appear properly in the watermark copy 
(secondary output).
• When a watermark is synthesized with newspapers or  other dark-background documents, the containing 
characters may not appear in the watermark copy 
(secondary output).
• Containing characters may not appear in the watermark  copy (secondary output) depending on the kind of the 
copier which makes the watermark copy (secondary 
output) and the copy mode.
• Containing characters may not appear clearly in the  watermark copy (secondary output) depending on the 
copy mode in which the watermark document (primary 
output) is made.
• When the print engine status changes, the containing  characters may not be concealed properly in the 
watermark document (primary output). In this case, 
follow the procedures below to conceal the containing 
characters.
* Use SIM46-24 to execute the color balance adjustment.
* Use SIM46-54 to execute the color balance  adjustment for each dither.
* Adjust the watermark print contrast in the system  setting.
• Though the watermark of cyan or magenta is selected in  the black and white mode, the black watermark is 
synthesized.
• For a document which is judged as monochrome with  ACS selected, though the watermark color is specified 
as cyan or magenta, the black watermark is synthesized.
• The preview screen of the watermark only indicates the  setting of the watermark color, and does not indicate an 
actual copy image.
• When the document control (printer mode) is used  together, it is advisable to use Characters appearing 
setting. If Background appearing setting is used 
together, the detection accuracy of document control 
may be reduced.
• In the printer mode watermark, setting of 1200dpi and a  watermark cannot be used together. 
						

							MX-3610N  ADJUSTMENTS AND SETTINGS  4 – 67
Watermark adjustment in the system setting
System setting 
 Security setting   Watermark print  
Contrast tab
Note for adjusting the watermark with SIM46-54
When the color balance automatic adjustment is executed with
SIM46-74 or SIM46-24 but the containing characters are
reproduced, use SIM46-54 to ex ecute the color balance auto-
matic adjustment for each dither.
However, note the following items.
• When either of item K or L of the PATTERN mode is 42, the adjustment must be executed for the both modes of
WOVEN1 and WOVEN2 of SIM46-54.
• When either of item K or L of the PATTERN mode is 43, the adjustment must be executed for the both modes of
WOVEN3 and WOVEN4 of SIM46-54.
• WOVEN1 and WOVEN2 must be adjusted in a pair as well as WOVEN3 and WOVEN4.
If it is ignored, the containing characters remain reproduced.
 
10-E Printer image quality adjustment 
(Basic adjustment)
Requisite condition before execution of the printer color bal-
ance/density adjustment
Before execution of the printe r color balance/density adjustment,
the copy color balance/density adjustment must have been com-
pleted properly.
This adjustment is required in the following cases.
* Basically same as when the c opy color balance/density adjust-
ment is required.
* After the copy color balance/density adjustment.
 
10-E (1)
Printer color balance adjustment 
(Automatic adjustment)
a. General
The color balance adjustment (aut o adjustment) is used to adjust
the print density of each color (Cyan, Magenta, Yellow, Black) auto-
matically with SIM 67-24 or the user program.
When this adjustment is executed, the color balance adjustments
of all the print modes are revised.
There are following two modes in the auto color balance adjust-
ment.
1) Auto color balance adjustment  by the serviceman (SIM 67-24
is used.)
2) Auto color balance adjustment by the user (The user program mode is used.) (The color balance target is the service target.)
The auto color balance adjustment by the user is provided to
reduce the number of service calls.
If the print color balance is lost for some reasons, the user can
use this color balance adjustment to recover the balance.
When, however, the machine has a fatal problem or when the
machine condition is greatly  changed, this function does not
work effectively.
On the other hand, the auto color balance adjustment by the
serviceman functions to recover the normal color balance
though the machine condition is greatly changed. If the
machine has a fatal problem, repair and adjust it for obtaining
the normal color balance.
To perform the adjustment, the above difference must be fully
understood.
Watermark kind 
mode selection Density
Adjustment
Character 
appearing To increase the 
text densityDecrease the contrast value. 
(Default: 5)
To decrease the 
text density Increase the contrast value. 
(Default value: 5)
Background 
appearing To increase the 
text densityIncrease the contrast value. 
(Default value: 5)
To decrease the 
text density Decrease the contrast value. 
(Default: 5) 
						

							MX-3610N  ADJUSTMENTS AND SETTINGS  4 – 68
b. Adjustment procedure
(Auto color balance adjustment by the serviceman)
YES
NO
Is the PCL printer
function provided?
YES NO
YES
NO
Printer color balance and density adjustment (Automatic adjustment) procedure
flowchart (SIM67-24)
Start
Execute ADJ10E(1) (Printer color balance and density
adjustment) (Automatic adjustment). Enter the SIM67-24 mode, and select A4
(11" x 8.5") paper.
Press [EXECUTE] key.
(The adjustment pattern is printed.)
Set the adjustment pattern on the document table.
Select the FACTORY target or the SERVICE target,
and press [EXECUTE] key. (The adjustment pattern
is scanned, and the adjustment is automatically
performed to print the check pattern.) (*1)
Check the printed check pattern for any streaks or
unclear copy. (*4)
Press [OK] key. (The initial setting of the halftone
image correction is automatically performed.) (*2)
Cancel SIM67-24.
Are the color balance and
density at the satisfactory
level? End Automatic adjustment color balance target change
Change the color balance and density target.
(SIM67-26)
Though the FACTORY
color balance and density
target (available in 3 kinds) is
changed, satisfactory color
balance and density are not
obtained (SIM67-26), or the
SERVICE target is
selected.
*1:
When the color balance and density are customized and
registered as the SERVICE target, select the SERVICE
target.
*2:
If the initial setting of the halftone image correction is not
properly adjusted, satisfactory color balance and density
cannot be obtained. In this case, check the print engine for
any problems.
*3:
If satisfactory color balance and density are not obtained
with ADJ10E(2) (Printer color balance and density
adjustment) (Manual adjustment) (SIM67-25), check the
print engine for any problems.
*4:
If there is any streak or unclear copy on the printed check
pattern, check the print engine for any problems.
Use SIM64-5 to print the self print
check pattern, and check the
printer color balance and density.
Use SIM67-25 to print the self print
check pattern, and check the
printer color balance and density.
Check the self print check pattern to check the printer color balance and
density adjustment.
Execute ADJ10E(2) (Printer color balance and density
adjustment) (Manual adjustment). (SIM67-25) (*3) 
						

							MX-3610N  ADJUSTMENTS AND SETTINGS  4 – 69
1) Enter the SIM 67-24 mode.
2) Press [EXECUTE] key. (A4/11 x 
8.5 or A3/11 x 17 paper is
automatically selected.)
The color patch image (adjustment pattern) is printed out.
3) Set the color patch image (adjustment pattern) paper printed in procedure 2) on the document table.
Place the printed color patch image (adjustment pattern) paper
on the document table so that the thin lines on the paper are
on the left side. Place 5 sheets of white paper on the printed
color patch image (adjustment pattern) paper.
4) Select [FACTORY] key, and press [EXECUTE] key. When the color balance is customized with the manual color
balance adjustment (SIM 67-25)  according to the users
request and the color balance is registered as the service tar-
get with SIM 67-27, if the color balance is adjusted to that color
balance, select the service target. The copy color balance adjustm
ent is automatically executed
and prints the color balance check patch image. Wait until the
operation panel shown in the procedure 5) is displayed.
5) Press [OK] key on the operation panel. After pressing [OK] key, the initial setting of the halftone image
correction is started. During the operation, NOW REGISTER-
ING THE NEW TARGET OF HALFTONE is displayed. This
operation takes several minutes.
After completion of the operation, PLEASE QUIT THIS
MODE is displayed.
Do not cancel the simulation until PLEASE QUIT THIS
MODE is displayed.
After completion of the operation, the simulation is canceled.


						

							MX-3610N  ADJUSTMENTS AND SETTINGS  4 – 70
6) Check the color balance and density.
(Refer to the item of the printer color balance and density
check.)
When satisfactory color balance and density are not obtained
from the automatic adjustment by selecting the factory target in
procedure 4), change the factory color balance target with SIM
67-26 and repeat the procedures from 1).
If a satisfactory result on the color balance and the density is
not obtained with the automatic adjustment, execute the man-
ual adjustment (SIM 67-25) (ADJ 10E (2)).
Also when the service target is selected in procedure 4) to exe-
cute the automatic adjustment and a satisfactory result is not
obtained, perform the manual color balance adjustment (ADJ
10E (2)).
If the color balance or density is not in the satisfactory level even
after execution of the automatic and manual adjustments, there
may be another cause.
Troubleshoot the cause, repair or perform necessary works, and
repeat the adjustment from the beginning.
 
 
10-E (2)
Printer color balance adjustment 
(Manual adjustment)
a. General
The color balance adjustment  (Manual adjustment) is used to
adjust the printer density of C, M, Y and K. This is used at the fol-
lowing situation. When the resu lt of auto adjustment described
above is not existing within t he range of reference. When a fine
adjustment is required. When there is request from the user for
changing (customizing) the color balance.
In this manual adjustment, adjust  only the color patch which could
not adjusted properly in the automatic adjustment.
If the color balance is improper, execute the automatic color bal-
ance adjustment in advance, and ex ecute this adjustment for better
efficiency. b. Adjustment procedure
YES
NO
Printer color balance and density adjustment (Manual adjustment) procedure
flowchart (SIM67-25)
Start
Execute ADJ10E(2) (Printer color balance and density
adjustment (Manual adjustment). (*1) Enter the SIM67-25 mode, and select A4
(11" x 8.5") paper. (Automatic selection.)
Press [EXECUTE] key.
(The adjustment pattern is printed.)
Check the printed adjustment check pattern,
and select a target adjustment color with the
color keys (C,M,Y,K).
Select a target adjustment density level with the
scroll key.
Enter the adjustment value with 10-key.
Press [EXECUTE] key.
(The adjustment pattern is printed.)
Are the color balance
and density at the sati-
sfactory level?
Cancel the SIM67-25 mode.
Set the SERVICE target for the
automatic printer color balance
adjustment. (SIM67-27) End
Check the patch color balance and density in the
process gray of the color balance check pattern.
(If the gray color is slightly shifted to Magenta,
the color balance is properly adjusted.)
*1:
If satisfactory color balance and density are not
obtained with the adjustment, check the print
engine for any problems.
YES
NO
Is the PCL printer
function provided?
YES NO
Are the color balance and
density at the satisfactory
level?
Use SIM64-5 to print the self print
check pattern, and check the
printer color balance and density.Use SIM67-25 to print the self print
check pattern, and check the
printer color balance and density.
Check the self print check pattern to check the printer color balance and
density adjustment. 
						

							MX-3610N  ADJUSTMENTS AND SETTINGS  4 – 71
1) Enter the SIM 67-25 mode.
2) Press [EXECUTE] key. (A4/11 x 
8.5 or A3/11 x 17 paper is
automatically selected.)
The color balance adjustment pattern is printed. 3) Check that the follow
ing specification is satisfied or the color
balance is satisfactory.
If not, execute the following procedures.
The print density must be c hanged gradually from the lighter
level to the darker level. The density changing direction must
not be reversed.
The density level of each color must be almost at the same
level.
Patch B may not be copied.
Patch A must not be copied.
When, however, the color balance is adjusted according to a
request from the user, there is no need to set to the standard
color balance stated above.
If the color balance of each patch of the process black (CMY
mixed color) is slightly shifted to Magenta, it means that the
adjustment is proper. In an actual print mode, it is converted
into the natural gray color balance by the color table. (When
the color balance target is DEF 1.)
4) Select the color to be adjusted with the color select key, and select the adjustment point with the scroll key.
5) Enter the adjustment value with 10-key and press [OK] key. The adjustment value is set in the range of (1 - 999). When
SIM 67-24 is used to adjust the automatic color balance and
density, all the set values of this simulation are set to 500.
To increase the density, increase the adjustment value. To
decrease the density, decrease the adjustment value.
Repeat procedures of 2) - 5) until  the condition of 3) is satis-
fied.
When the overall density is low, or when the density is high
and patch A is copied, use the arrow key to adjust all the
adjustment values of A - Q (MAX) to a same level collectively.
Then, adjust each patch density i ndividually. This is an efficient
way of adjustment.
Referring to the black/gray pa tches, adjust so that each pro-
cess (CMY) black/gray patch color balance of A - Q (MAX)
approaches the black/gray patc h level as far as possible.
EXECUTEEXECUTE
OK


						

							MX-3610N  ADJUSTMENTS AND SETTINGS  4 – 72
6) Check the color balance and density.
(Refer to the item of the printer color balance and density
check.)
If the color balance is customized, use SIM 67-27 to register
the color balance as the service target.
If the color balance is not cust omized, this procedure is not
required.
If the customized color balance is registered as the service tar-
get, the automatic color balance adjustment can be made in
the next color balance adjustment.
 
10-F Printer image quality adjustment 
(Individual adjustment)
a. General
This adjustment is used to exec ute the fine adjustment in each
mode only when a satisfactory image quality is not obtained by the
basic adjustments ADJ 10E (1) and ADJ 10E (2) or there is a
request from the user. Normally there is no need to execute this
adjustment.
This must be well understood for execution of the adjustment.
 
10-F (1)
Printer density adjustment 
(Low density section density adjustment) 
(No need to adjust normally)
This adjustment is used to adjust the image density in the low den-
sity area in the printer mode.
Adjust to reproduction setting of the low density image.
This adjustment is required in the following cases.
* When it is required not to reproduce images in the low density
section, or to reproduce low-density images.
* When there is request from the user.
1) Enter the SIM 67-36 mode. 2) Enter the adjustment value and press the [OK] key.
In case of increase of the image density on low density part,
increase the adjustment value. For diluting the image density
on low density part, decrease the adjustment value.
 
10-F (2)
Printer high density image density 
reproduction setting (Supporting the high 
density section tone gap) 
(No need to adjust normally)
When a tone gap is generated in the high density section in the
printer mode, the setting is changed to lower the density in the high
density section.
This setting is normally not requ ired, however, in the following
cases, a change of setting must be made.
* When a tone gap occurs on part of high density.
* To lower the density in the high density section.
a. Adjustment procedure
1) Enter the SIM 67-34 mode.
2) Select the item A, B with the scroll key.
OK


						

							MX-3610N  ADJUSTMENTS AND SETTINGS  4 – 73
* If a tone gap occurs on part of high density, set 0 to item A and B
The density of high density part decreases. However, the tone
gap is better.
* In case of more increase of the density on high density part, set 1 to item A and B.
The tone gap may occur in high density part.
If the setting values of item C, D, E and F are changed, density of
the high density part is changed.
When these values are changed, be sure to perform the printer
color balance and density adjustment. (Automatic adjustment)
 
10-F (3)
Printer gamma adjustment for each dither 
(Automatic adjustment) (No need to adjust 
normally) (Except for GDI printers)
a. General
This adjustment is used to adjust the color balance and the density
in the monochrome mode, the heavy paper mode, and the gloss
paper mode.
This simulation is used to improve image quality in these modes
and images.
b. Adjustment procedures
1) Enter the SIM67-54 mode.
2) Press [EXECUTE] key.
A4/11 x 8.5 or A3/11 x 17 paper is automatically selected.
The color patch image (adjustment pattern) is printed out.
3) Set the color patch image (adjustment pattern) printed in the procedure 2) on the document table so that the thin lines on
the printed color patch image (adjustment pattern) are on the
left side. Place 5 sheets of white paper on the printed color
patch image (adjustment pattern). 4) Press [EXECUTE] key.
The color balance adjustment is automatically performed.
The adjustment pattern is printed out. Check it for any abnor-
mality.
5) Press [OK] key. The list of the adjustment items  (for each dither) is displayed.
6) Select an adjustment item (for each dither).
*1: 20cpm/23cpm/31cpm(G) machine: Disable
7) Press [EXECUTE] key. A4/11 x 8.5 or A3/11 x 17 paper is automatically selected.
The color patch image (adjustment pattern) is printed out.
8) Set the color patch image (adjustment pattern) printed in the procedure 7) on the document table so that the thin lines on
the printed color patch image (adjustment pattern) are on the
left side. Place 5 sheets of white paper on the printed color
patch image (adjustment pattern).
9) Press [EXECUTE] key. The color balance adjustment is automatically performed, and
the machine goes to the state of procedure 6).
10) When [OK] key is pressed, the adjustment result is registered and the adjustment mode is terminated. When [EXECUTE]
key is pressed, the adjustment result is registered and the
screen is shifted to the other item (Mode/Image) select menu.
To execute the adjustment of the other item (Mode/Image),
press [EXECUTE] key.
After completion of all the adjustments of the items (Mode/
Image), press [OK] key, and the adjustment results are regis-
tered.
11) Make a print, and check the print image quality. (Refer to the item of the printer color balance and density
check.)
Use SIM67-52 to reset the adjustment values to the default values.
D MAGENTA MAX  TA R G E T Scanner target value for 
MAGENTA maximum density 
correction 0 - 999 500
E YELLOW MAX  TA R G E T Scanner target value for 
YELLOW maximum density 
correction 0 - 999 500
FBLACK MAX  TA R G E T Scanner target value for 
BLACK maximum density 
correction 0 - 999 500
Display/Item
ContentSetting 
range Default
PRINTER CALIBRATION
Select item 
(Mode/Image) Content
Heavy Paper Adjustment item to improve the color balance in the  heavy paper mode
B/W Adjustment item to improve the density and gradation in 
the monochrome mode
Gloss Paper Adjustment item to improve the color balance in the  gloss paper mode
1200dpi 1bit*1 Adjustment item to improve the color balance in 1200dpi  mode
PRINTER CALIBRATION 
						

							MX-3610N  ADJUSTMENTS AND SETTINGS  4 – 74
 
10-F(4)
Automatic color balance adjustment by the 
user (Printer color balance automatic 
adjustment ENABLE setting and 
adjustment) (Normally unnecessary to the 
setting change)
a. General
In the user program mode, the user can execute the auto color cal-
ibration (auto adjustment of the printer color balance and density).
This adjustment is to set Enable/ Disable of the above user opera-
tion with SIM 26-53.
This setting must be set to ENABLE only when the users under-
standing on the automatic adjustment of the copy color balance
and density and the users operat ional ability are judged enough to
execute the adjustment.
When set to enable, operation procedures must be fully explained
to the user.
 
b. Setting procedure
1) Enter the SIM 26-53 mode.
2) Select ENABLE or DISABLE with 10-key.
When disabling, set to 0 (NO). When enabling, set to 1
(Yes).
3) Press [OK] key.
When set to DISABLE, the menu of the user auto color calibration
(automatic adjustment of printe r color balance and density) is not
displayed in the user program mode. (Auto color calibration by the user (Auto color balance adjust-
ment))
This adjustment is based on the se
rvice target color balance set
with SIM 67-27 or SIM 67-28. If, t herefore, the above settings are
not properly performed, this adjustment cannot be made properly.
1) Enter the system setting mode.
2) Enter the printer setting mode.
3) Press the auto color calibration key.
4) Press [EXECUTE] key.
The color patch image (adjustment pattern) is printed out.
5) Set the color patch image (adjustment pattern) printed in pro- cedure 4) on the document table.
Set the patch image so that the thin line is on the left side as
shown in the figure.
At that time, place 5 sheets of white paper on the above color
patch image (adjustment pattern).
6) Press [EXECUTE] key, and t he printer color balance adjust-
ment is executed automatically. 
For the 26cpm/36cpm/31cpm(A) machines, the message, Will
you go on to the copy color bal ance adjustment? is displayed. 
To execute the copy color bal ance adjustment successively,
perform the procedures same as the above. 
 
ADJ 11Paper size sensor adjustment
 
11 - A Manual paper feed tray paper size (width) 
sensor adjustment
This adjustment must be performed in the following cases:
* The manual paper feed tray section has been disassembled.
* The manual paper feed tray unit has been replaced.
* U2 trouble has occurred.
* The PCU PWB has been replaced.
* The EEPROM of the PCU PWB has been replaced.
OK
10-key