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AR-C170 (serv.man31)
Pages
27
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3.77 MB
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PDF
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Service Manual
Brand
Device
Copying Equipment / Printer controller section
File
ar-c170-sm31.pdf
Date

Sharp AR-C170 (serv.man31) Service Manual ▷ View online

AR-C170M  PRINTER CONTROLLER SECTION  14 - 10
5) I/O tome-out time
This program is used to interrupt connection of the port when print
data are not sent  for a certain time to the port which is in standby
for print data reception, and used to set auto selection of port or to
start the next print data in standby for printing.
I/O time-out item means the time interval between print data
reception standby and I/O time-out.
c. Network setting
This setting is used to use the  printer as a network printer. [Net-
work setting] allows setting of the following items. After changing
the items, terminate the key operator program and turn off the
main switch. Then turn on the main switch again after a while to
enable the setting.
1) IP address setting
Used to set the IP address of this machine when is it used under
the network environment using the TCP/IP protocol. (IP address,
IP net mask, IP gateway)
Factory setting is "IP address is automatically acquired (DHCP
Enable)."
When using under the TCP/IP protocol network environment,
[TCP/IP Enable] is set to Enable.
2) TCP/IP Enable setting
This setting is used when the machine is used under the TCP/IP
protocol network environment.
3) Netware enable setting
This setting is used when the machine is used under the NetWare
protocol network environment.
4) NetBEUI enable setting
This setting is used when the machine is used under the NetBEUI
protocol network environment.
5) NIC reset
Used to reset all the setting items of NIC (Network Interface Card)
to the factory setting.
Terminate the key operator program and turn off the main switch.
Then turn on the main switch again after a while to enable the set-
ting.
d. Color adjustments
This program is used to automatically adjust the color tone of each
color (cyan, magenta, yellow, and black). None of these adjust-
ments affect black and white printing.
1) Auto color calibration
The auto color calibration program enables automatic color grada-
tion correction when the color is off.
Note: The color gradation may not be sufficiently corrected after
one correction cycle. If so, execute the program again.
When the [AUTO COLOUR CALIBRATION] key is touched, the
following display will appear.
After the [EXECUTE] key is touched and a test patch printed, a
message appears asking you to begin automatic adjustment.
Place the test patch on the document glass as shown below and
touch the [EXECUTE] key.
Notes:
• Correct adjustment will not be possible if you use the test patch
that is printed for "Auto color calibration" for the copy function or
any other document. If you attempt to use the wrong test patch,
you will return to the message screen that asks you to begin
automatic adjustment. Be sure to place only the test patch
printed out above on the document glass.
• Lay approximately five sheets of copy paper that are the same
size as the test patch on top of the set test patch, and gently
close the original cover.
When a message appears informing you that auto color calibration
is completed, touch the [OK] key to end the procedure.
Note: Before using this program, make sure that the registration is
correctly adjusted. If the registration is not correctly
adjusted, perform [AUTO ADJUSTMENT] in "Registration
adjustment".
e. Printer setting store/recall
This program is used to reset the environment setting and the key
operator program printer setting to the default setting and to store
the current setting contents. If the setting contents are changed,
the stored contents can be recalled to reset the machine to the
stored setting contents.
1) Factory setting reset
This program is used to reset the environment setting and the key
operator program printer setting to the default setting. After execu-
tion of this program, terminate the key operator program and turn
off the main switch. Then turn on the main switch again after a
while to enable the setting.
2) Current setting storage
This program is used to store the environment setting and the key
operator program printer setting in the memory. The stored con-
tents are not deleted even the main switch is turned off. To recall
the stored contents, use [Stored setting value recall].
3) Stored setting value recall
This program is used to recall the setting contents stored with the
program of [Current setting storage] and reset the machine to the
recalled setting.
(2) Jumper Setting
Configuration for 3-pin jumper is shown as follows.
a. Boot ROM Write Protect setting (JP1)
b. Battery setting (JP7)
KEY OPERATOR PROGRAMS
OK
AUTO COLOUR CALIBRATION
USE 11"X17" OR A3 PAPER FOR THIS ADJUSTMENT.
PRESS [EXECUTE] TO PRINT THE TEST PATCH.
EXECUTE
Cyan
Magenta
Yellow
Black
Boot ROM Write Protect
JP1
Factory Default
Normal
1-2 Short
Write Protect
2-3 Short
Battery
JP7
Factory Default
ON
1-2 Short
OFF
2-3 Short
JP1
VCCWB
BOOT
3
1
 H
JP7
BATTERY
1
OFF 
 ON
3
AR-C170M  PRINTER CONTROLLER SECTION  14 - 11
6. Operation
A. Printer driver setting and operation
(1) Document mode and image process
Custom Setting dialog is automatically set with the Original Type as follows:
• When a user changes color dialog settings, "Original Type" is set Custom.
• When Original Type item is set to "Drawing (Thin line)", Screening item is set to "Automatic" on UI. However, in this case the drivers out-
put "Drawing" mode as PJL.
Color Mode
Color
Gray Scale
Automatic
Original 
Type
Standard
 
 
 
 
 
 
 
Graphics
Photo
Drawing 
(Thin 
line)
Web 
Page
Custom
Color Rendering
UCR Selection
Black Overprint
Screening
Pure Black Text
Original Type
Standard
SHARP Color
Standard
ON
Automatic
On
Graphics
Saturation Match
High Black
On
Text/Graphics
Off
Photo
Perceptual Match (Photo)
Low Black
Off
Photo
Off
Drawing (Thin line)
Saturation Match
High Black
On
Automatic
On
Web Page
Perceptual Match (Web)
Standard
Off
Automatic
On
Custom
No Change
No Change
No Change
No Change
No Change
AR-C170M  PRINTER CONTROLLER SECTION  14 - 12
(2) Custom Settings
a. Color Rendering
Color matching is set.
Setting value:
• [CMM Off]; No color matching. UCR select is invalid.
• [Perceptual Match (Photo)]; Used to print continuous grada-
tion images (photo images, etc.).
All colors (Colors within and outside printer color reproduction
gamut) are equally color-mapped.
• [Colorimetric Match]; Used to print in colors which are close to
displayed colors.
Colors which are close to displayed colors are reproduced. Col-
ors outside the reproduction gamut are color-mapped by colori-
metric match.
Colors within printer color reproduction gamut are so color-
mapped that the color difference from CRT is minimized when
print. Colors outside printer color reproduction gamut are color-
mapped by colorimetric match.
UCR select is invalid.
• [Saturation Match]; Used to print graphical presentation docu-
ments by saturation match.
Colors within printer color reproduction gamut are so color-
mapped that the color difference from CRT is minimized when
print. Colors outside printer color reproduction gamut are color-
mapped by saturation match.
• [SHARP Color]*; Used to print photo images and graphic
images together.
Colors are reproduced to express intermediate color reproduc-
tion gamut between Perceptual Match and Saturation Match.
Color-mapped to have intermediate color reproduction gamut
between Perceptual Match and Saturation Match.
• [Perceptual Match (Web)]; Used to print Web page images.
Color matching is performed so that the overall saturation of an
image is reduced and the high-density gamut is widened than
Perceptual mode.
All colors (Colors within and outside printer color reproduction
gamut) are equally color-mapped.
Note:
This process is done by PJL output.
b. UCR Selection
The ratio to use black toner is set.
Setting value:
• [Low Black]; To output gray tint of photo which is difficult to
reproduce. 
• [Standard]* ; For photo
• [High Black]; For CAD and graphs
Restriction:
• If "Color Rendering" item is set to "Colorimetric Match" or "CMM
OFF," this item is invalid.
Note:
This process is done by PJL output.
c. Black Overprint
When the background is color, whether black characters are over-
printed is set.
Setting value:
• [Off]*
• [On]
Note:
This process is done by PJL output.
d. Screening
Color matching is set.
Setting value:
• [Automatic]*; Automatically checks type of each area of the
image (photo or text/graphics), and output the image by chang-
ing halftone accoding to each area.
• [Photo]; Outputs all areas by halftone for photo.
• [Text/Graphics]; Ouputs all areas by halftone for text/grahics.
Note:
This process is done by PJL output.
e. Pure Black Text
Select whether to print black text with only black toner.
Setting value:
• [Off ]; Print black text with CMYK toners.
• [On]* ; Print black text with only black toner.
(3) Installed RAM VS. Color Mode VS. Print Priority
Memory size: [128 MB RAM / 128 MB RAM]* [256 MB RAM /
256 MB RAM] [384 MB RAM / 384 MB RAM] [512 MB RAM / 512
MB RAM] [640 MB RAM / 640 MB RAM]
There are the following restrictions among Installed RAM, Color
Mode, and Print Priority by the restriction of the printer side. As for
these restrictions, the former set is preceded and the use of other
competitive settings is prohibited. When each setting is restricted
(grayout), the Information Icon is displayed to the left of each set-
ting item. If clicking such icon, the following information is dis-
played to the type 1 dialog box.
When Installed Memory setting is 128MB:
• When the Color Mode item is set to Color/Automatic, the Print
Priority item is fixed to Speed, and it is grayed out. (Default set-
ting) 
• When the Print Priority item is set Quality, the Color Mode item
is fixed to Gray Scale, and it is grayed out.
The Alert contents to the Print Priority item:
“To use this feature, set ‘Installed RAM’ to ‘256 MB RAM’ or more
(see Configuration tab), or set ‘Color Mode’ to ‘Gray Scale’ (see
Color tab).”
The Alert contents to the Color Mode item: 
“To use this feature, set ‘Installed RAM’ to ‘256 MB RAM’ or more
(see Configuration tab), or set ‘Print Priority’ to ‘Speed’ (see Color
tab).”
Color Mode
Print 
Priority
Document 
Style
Installed Memory
128MB
256MB or 
more
Color/
Automatic
Quality
1-Sided
X
O
2-Sided
X
O
Speed
1-Sided
O
O
2-Sided
O
O
Gray Scale
Quality
1-Sided
O
O
2-Sided
O
O
Speed
1-Sided
O
O
2-Sided
O
O
Gray Scale
Quality
1-Sided
O
O
2-Sided
O
O
Speed
1-Sided
O
O
2-Sided
O
O
AR-C170M  PRINTER CONTROLLER SECTION  14 - 13
7. Firmware version up
A. Necessary items
1) Personal computer (PC)
2) Parallel cable
3) Printer program data file (xxx.blk)
B. Procedure
1) Use SIM 22-5 to check the current firmware version.
2) Connect the PC and the machine with the parallel cable.
3) Turn on the power.
4) Execute SIM 67-14. (Check that "PLEASE SEND DATA" is
displayed.)
5) The download file (printer program) is downloaded. (xxx.blk)
(Note) Never turn off the power during downloading.
Boot the DOS prompt. 
 Check that the printer READY lamp
lights up. 
 Type "> copy xxx.blk lpt1" on the DOS prompt.
The machine display shifts as follows. Check that "COMPLETED"
is displayed at the end.
RECEIVING 
 ERASING 
 WRITING 
 VERIFYING 
 COM-
PLETED
6) Turn off/on the power to reboot.
7) Use SIM 22-5 to check the firmware version.
8) Use SIM 67-17 to clear the controller NVRAM.
9) After rebooting, try printing from the PC and check that printing
is completed normally.
10) Execute the printer color balance adjustment.
8. Color balance adjustment
A. Outline
The printer color balance adjustment is used to manually adjust
gradation of Cyan, Magenta, Yellow, and Black in each level of
low, medium, and high density.
The color balance adjustment in the printer mode is generally per-
formed by the user. However, a serviceman can perform this
adjustment more accurately by use of the test chart for servicing.
B. Purpose
As the printer is used, ambient conditions and the depletion of
consumables (the toner cartridge and drum cartridge) can gradu-
ally cause changes to occur in the four color components of color
images, cyan, ma-genta, yellow, and black. This results in devia-
tions in the color balance.
These deviations in the color balance occur gradually over a long
period of time. Ambient conditions (tem-perature and humidity)
and the number of times the printer is used can have a large effect
on color devia-tion.
The printer has two color adjustment functions for the purpose of
correcting deviations in the color balance.
These functions are executed from the key operator programs.
C. Execution conditions
Be sure to perform this adjustment when consumable part is
replaced.
For execution of this adjustment, the print engine section must be
in the normal condition. (All the adjustment items related to the
print engine section must have been adjusted properly.)
D. Color balance adjustment mode
The printer has the following two color balance adjustment func-
tions:
(1) Color balance adjustment
This function is used to adjust each of the density levels (low, mid,
and high) of the four color components, cyan, magenta, yellow
and black. 
Use this mode when the color deviation is large.
(2) Easy calibration (Gray balance adjustment)
This mode is used for fine adjustment of the gray balance at the
mid density level of the colors cyan, magenta, and yellow.
Use this mode to correct minor color deviations.
E. Color balance adjustment flow
Test print: Used to check the current color balance and the gray
level adjustment state. By executing this adjustment, the test page
is printed.
(Preparation of the test chart)
Cut off the sections between two rows of the test pattern as shown
below cutter.
Use the key operator program on page 3 of the Key Operator’s Guide to 
print a test page
Do the colors on the test page match the colors on the standard color 
chart included with the printer?
No
Yes
          How much do the colors differ?
Large difference
Small difference
Using the Color Balance 
setings
Using Easy Calibration
Print a test page
Color balance is successfully adjusted
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