Roland XJ 640 User Manual

							79Chapter 5 Feature Reference 5-4 Setting How the Printer Operates
Press.
Press
several times.
Press.
Use
to select ENABLE.
Press
to enable the setting.
Press.
Press
to go back to the original screen.
Description
This menu item is displayed only when using four-color inks (cyan, magenta, yellow, and black). It sets whether
efficient ink use or image quality takes priority when youre performing bidirectional printing. Note, however, that
some high-speed print modes may not be affected by this setting.
Setting this to DISABLE performs printing with priority given to image quality.
Setting this to ENABLE lets you use ink more efficiently, although image quality may be slightly coarser.
Default Setting
[ALTERNATE HEAD]: DISABLE
Changing the Menu Language and the Units of Measurement
Procedure
Hold downand switch on the sub power.
Use
to select the display (menu) language.
Press
.
Useto select the measurement unit for length.
Press
.
Useto select to the measurement unit for tempera-
ture.
Press
.
Description
This sets the language and units of measurement displayed on the printers screen.
Default Setting
[MENU LANGUAGE]: ENGLISH
[LENGTH UNIT]: mm
[TEMP. UNIT]: ˚C
W 1839mm
SETUP SHEET
      ROLL
ALTERNATE HEAD
DISABLE     ENABLE
SUB MENU
ALTERNATE HEAD
MENU LANGUAGE
ENGLISH
LENGTH UNIT
mmINCH
TEMP. UNIT
 C  F
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							Chapter 5 Feature Reference80
5-4 Setting How the Printer Operates
Returning All Settings to Their Initial Values
Procedure
Press.
Press
several times.
Press.
Press
several times.
Press
to execute.
Description
This menu item returns all settings to the same as their factory defaults. However, the settings for [MENU LAN-
GUAGE], [LENGTH UNIT], and [TEMP. UNIT] are not returned to the factory defaults.
MENU
SUB MENU
SUB MENU
FACTORY DEFAULT
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							81Chapter 5 Feature Reference
5-5 Optimizing Printing to Match Media Thickness
Adjusting Head Height to Match Media Thickness
Procedure
Press.
Press
several times.
Press.
Open the front cover.
Move the lever to adjust the height of the head.
Moving the lever to HIGH makes a warning beep
sound twice. Moving it to LOW makes the warning
beep sound once.
Close the front cover.
The print heads return to their original position and
the screen shown in the figure appears.
	Press.
Press
 to go back to the original screen.
Description
Depending on the media, media may wrinkle or come loose from the platen during printing, increasing the chance of
contact with the print heads. When you are using such media, adjust the head height to High.
Note that the height of the heads cannot be determined by just the thickness of the media.
Default Setting
[HEAD HEIGHT]: LOW
MENU
HEAD HEIGHT
HEAD HEIGHT
LOWLOW
W 1839mm
SETUP SHEET
      ROLL
Height-adjustment lever
Move firmly, until it stops.
MENU
HEAD HEIGHT
HIGH
LOW
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							5-5 Optimizing Printing to Match Media Thickness
Chapter 5  Feature Reference82
Correcting for Misalignment in Bidirectional Printing
Procedure
1.Print a test pattern.
Press.
Press
.
Press.
Press
to start printing.
2.Read the correction values from the test pattern.
3.Enter the correction values that you read.
Press.
Press.
Use
to set the correction values.
Press
to enable the setting.
4.Go back to the original screen.
Press.
Press
to go back to the original screen.
Description
The bidirectional-printing mode (in which the heads perform printing during both their outbound pass and return pass)
offers the advantage of being able to shorten printing times, but subtle misalignment occurs during the outbound and
return passes. The procedure to correct this and eliminate misalignment is bidirectional correction. This misalignment
varies according to the head height and the thickness of the media, so we recommend performing correction to match
the media youre using.
Simple
W 1839mm
SETUP SHEET
      ROLL
MENU
ADJUST BI-DIR
ADJUST BI-DIR
TEST PRINT
Test patternChoose the value that produces
the least misalignment.
Correction-
value scale
ADJUST BI-DIR
SIMPLE SETTING
SIMPLE SETTING
0- 6
Current correction value
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							5-5 Optimizing Printing to Match Media Thickness
Chapter 5  Feature Reference83
Correcting for Misalignment in Bidirectional Printing More Precisely
Procedure
1.Print a test pattern.
Press.
Press
.
Press.
Press
.
Press.
Press
to start printing.
2.Read the correction values from the test pattern.
3.Enter the correction values that you read.
Enter the corresponding correction values for H1 through H6.
Press.
Press.
Use
to select. Useto set the correction
value.
Press
to finish making the settings for [SETTING NO.1].
H3 H4 H5
H6
H2H1NO.1
H3 H4H2H1NO.2
H1
NO.1
H5H6
H3
H4 H5
H6
H2H1NO.3
H3 H4 H5
H6
H2H1NO.4
H1          H2          H300 0
H4         H5          H600 0
MENU
ADJUST BI-DIR
ADJUST BI-DIR
DETAIL SETTING
DETAIL SETING
TEST PRINT
Test patternChoose the value that produces
the least misalignment.
Correction-value scale
DETAIL SETTING
SETTING NO.1
Current correction value
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							5-5 Optimizing Printing to Match Media Thickness
Chapter 5  Feature Reference84
Press.
Press.
Use
to select. Useto set the correction
value.
Press
to finish making the settings for [SETTING NO.2].
	Press.

Press.
Use
to select. Useto set the correction
value.
Press
to finish making the settings for [SETTING NO.3].
Press.
Press.
Use
to select. Useto set the correction
value.
Press
to finish making the settings for [SETTING NO.4].
4.Go back to the original screen.
Press.
Press
to go back to the original screen.
Description
This corrects, for each head, the minute misalignment that occurs in the bidirectional-printing mode. When further
correction is required, such as when adjustment made using [SIMPLE SETTING] does not enhance printing, use [DE-
TAIL SETTING] to make corrections for each head.
W 1839mm
DETAIL SETTING
SETTING NO.2
DETAIL SETTING
SETTING NO.3
DETAIL SETTING
SETTING NO.4
H1          H2          H300 0
H4         H5          H600 0
H1          H2          H300 0
H4         H5          H600 0
H1          H2          H300 0
H4         H5          H600 0
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							5-5 Optimizing Printing to Match Media Thickness
Chapter 5  Feature Reference85
Performing Feed Correction to Alleviate Horizontal Bands and the Like
Procedure
1.Print a test pattern.
Press.
Press
several times.
Press.
Press
to start printing.
2.Read the correction values from the test pattern.
In the printing example shown below, -0.40 becomes the correction value.
3.Enter the correction values that you read.
Press.
Press
.
Use
to make the setting for the correction value.
Press
to enable the setting.
4.Go back to the original screen.
Press.
Press
to go back to the original screen.
Description
The movement transfer of media experiences subtle changes due to the thickness of the media and the temperature of
the media heating system. When the movement distance becomes discrepant, horizontal stripes are more likely to
occur during printing. We recommend performing correction to match the media youre using and the media heating
system. Also, perform the actual printing in an operating environment identical to that used for the test pattern.
MENU
CALIBRATION
CALIBRATION
TEST PRINT
SETTING- 0.40% 0.00%
Gap presentOverlap
Choose the one that has
the smallest gap and the
least amount of overlap.
Test pattern
W 1839mm
Current correction value
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							5-5 Optimizing Printing to Match Media Thickness
Chapter 5  Feature Reference86
To make the setting for the correction value even more accurate, we recommend carrying out the following before
printing the test pattern.
➢After loading the media, use
to feed out the media by about one meter.
 P. 69, Shifting the Print-start Position Forward or Backward
➢Set the print-start position near the center of the media.
 P. 69, Shifting the Printing Position to the Left
Note, however, that you can also make this setting on the computer (by, for example, choosing the media type in the
software RIP you are using). When you have made the setting on the computer, the computers setting is used and the
printers setting is ignored.
Default Setting
[SETTING]: 0.00%
Changing the Feed-correction Value During Printing
Procedure
While printing is in progress, press.
Press.
The current correction value is displayed.
Useto set the correction value.
Press
to enable the setting.
The changed correction value is saved and immediately applied to printing.
Description
If white or dark-colored stripes appear during printing,you can change the feed-correction value without stopping the
printing operation in progress.If white horizontal stripes appear,you make the correction value smaller.If dark horizon-
tal stripes appear,you make the value larger.You can change the correction value regardless of whether settings made
on the machine or settings made on the computer take precedence.
A correction value set while printing is in progress is saved only as a setting on the machine.
Approx. 1 m Print-start position
MENU
CALIBRATION
SETTING- 0.80% - 0.80%
SETTING- 0.90% - 0.80%
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							87Chapter 5 Feature Reference
5-6 Changing the Ink-drying Method
Switching Off the Preheater, Print Heater, or Dryer
Procedure
Presstwice.
Use
to select the device.
Press
several times to select OFF.
Press
to enable the setting.
Press.
Press
to go back to the original screen.
Description
This makes the temperature settings for the media heating system (preheater, print heater, and dryer), as well as
switching these devices on or off. When this is set to OFF, these devices do not operate at all.
You can also make these settings on the computer. When youve made the settings on the computer, the computers
settings take precedence and the printers settings are ignored.
Default Setting
[PRE] (preheater): 35˚C (94˚F)
[PRINT] (print heater): 35˚C (94˚F)
[DRYER]: 50˚C (122˚F)
Determining How the Media Heating System Operates
Procedure
Hold downand press.
Press.
Press.
Use
to make the setting.
Press
to enable the setting.
Press.
Press
to go back to the original screen.
Description
This feature controls the temperature of the media heating system automatically whenis dark.
MENU performs heating to the preset temperature at all times, without lowering the temperature when
is
dark.
30˚C lowers the media heating system to a fixed temperature (30˚C) when
is dark.
OFF switches off the media heating system when
is dark.
Default Setting
[PREHEATING]: 30˚C
W 1839mm
SETUP SHEET
      ROLL
PRE                       35OFF35
W 1839mm
SETUP SHEET
      ROLL
HEATER MENU
FEED FOR DRY
HEATER MENU
PREHEATING
PREHEATING
30 CMENU
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							Chapter 5 Feature Reference88
5-6 Changing the Ink-drying Method
Drying the Trailing Edge of the Printing Area on the Dryer
Procedure
Hold downand press.
Press.
Use
to select ENABLE.
Press
to enable the setting.
Press.
Press
to go back to the original screen.
Description
When this menu item is set to ENABLE, additional media feed is performed until the trailing edge of the printing area
is positioned directly on the dryer. The margin between the print-end position and the next print-start position is fixed
at 200 mm. Any margin setting made on the computer is ignored.
When this is set to DISABLE, media feed stops simultaneously when printing ends. This means that the trailing edge
of the printing area is not fed to the dryer unless you continue with a subsequent printing operation.
When youre using the take-up unit, be sure to set this to DISABLE.
 P. 44, Operating Conditions for the Take-up System
Default Setting
[FEED FOR DRY]: DISABLE
W 1839mm
SETUP SHEET
      ROLL
HEATER MENU
FEED FOR DRY
FEED FOR DRY
DISABLE     ENABLE
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