Sharp AL-1644 (serv.man17) User Manual / Operation Manual ▷ View online
51
TROUBLESHOOTING
5
Poor scanning quality.
The document glass or the underside of the document
cover/SPF is dirty.
cover/SPF is dirty.
→ Clean regularly.
66
The original is smudged or blotchy.
→ Use a clean original.
–
You have not specified a suitable resolution.
→ Make sure that the resolution setting in the scanner driver is
appropriate for the original.
–
You are scanning a large area (for example an entire A3)
at high resolution.
at high resolution.
→ If you attempt to scan a large area at high resolution and there is
insufficient memory in the machine to hold the scanned data,
scanning will take place at a lower resolution and the scanner
driver will enhance the data to make up for the lower resolution.
However, the quality of the enhanced image will not be as high as
if scanning took place at the higher resolution. Use a lower
resolution setting, or scan a smaller area.
scanning will take place at a lower resolution and the scanner
driver will enhance the data to make up for the lower resolution.
However, the quality of the enhanced image will not be as high as
if scanning took place at the higher resolution. Use a lower
resolution setting, or scan a smaller area.
–
You have not specified a suitable value for the "B/W
Threshold" setting.
Threshold" setting.
→ If you are scanning with a TWAIN-compliant application and are
using "White", "Red", "Green" or "Blue" mode from "Light Source"
menu, make sure that a suitable value is specified for the "B/W
Threshold" setting. A larger threshold value makes your output
darker, while a small threshold value makes it lighter. To adjust
the threshold automatically, click the "Auto Threshold" button on
the "Image" tab of the "Professional" screen.
menu, make sure that a suitable value is specified for the "B/W
Threshold" setting. A larger threshold value makes your output
darker, while a small threshold value makes it lighter. To adjust
the threshold automatically, click the "Auto Threshold" button on
the "Image" tab of the "Professional" screen.
–
The brightness and contrast settings are not suitable.
→ If you are scanning with a TWAIN-compliant application and the
resulting image has unsuitable brightness or contrast (for
example it is too bright), click the "Auto Brightness/Contrast
Adjustment" button on the "Colour" tab of the "Custom Settings"
screen. Click the "Brightness/Contrast" button to adjust the
brightness and the contrast while viewing the scanned output
image on the screen. If you are scanning with a WIA-compliant
application or the "Scanner and Camera Wizard", click "Adjust
the quality of the scanned picture" or the "Custom settings"
button, and adjust the brightness and contrast in the screen that
appears.
example it is too bright), click the "Auto Brightness/Contrast
Adjustment" button on the "Colour" tab of the "Custom Settings"
screen. Click the "Brightness/Contrast" button to adjust the
brightness and the contrast while viewing the scanned output
image on the screen. If you are scanning with a WIA-compliant
application or the "Scanner and Camera Wizard", click "Adjust
the quality of the scanned picture" or the "Custom settings"
button, and adjust the brightness and contrast in the screen that
appears.
–
The original is not placed face up in the SPF or face down
on the document glass.
on the document glass.
→ Place the original face up in the SPF or face down on the
document glass.
21, 22
The original was not placed in the correct position.
→ Place the original correctly.
21, 22
Problem
Cause and solution
Page
AL-1633_1644_EX.book 51 ページ ２００３年１０月２３日 木曜日 午後８時２１分
52
TROUBLESHOOTING
Removing the software
If you need to remove the software, follow these steps.
1
Click the "start" button, and then click
"Control Panel".
"Control Panel".
On Windows 95/98/Me/NT 4.0/2000, click the
"Start" button, select "Settings", and then click
"Control Panel".
"Start" button, select "Settings", and then click
"Control Panel".
2
Click "Add or Remove Programs".
On Windows 95/98/Me/NT 4.0/2000, double-click
the "Add/Remove Programs" icon.
the "Add/Remove Programs" icon.
3
Select the printer/scanner driver for
the machine and Button Manager from
the list, and remove the software.
the machine and Button Manager from
the list, and remove the software.
For more information, refer to your operating
manual or to the help files for your operating
system.
manual or to the help files for your operating
system.
Unable to scan the image.
If scanning is not possible, shut down your computer,
turn off the machine’s power switch, and unplug the
machine’s power cord. Next, start your computer, restore
power to the machine, and try scanning again. If scanning
is still not possible, check the following items.
turn off the machine’s power switch, and unplug the
machine’s power cord. Next, start your computer, restore
power to the machine, and try scanning again. If scanning
is still not possible, check the following items.
–
Your application is not TWAIN/WIA compliant.
→ If your application is not TWAIN/WIA compliant, scanning will not
be possible. Make sure your application is TWAIN/WIA
compliant.
compliant.
–
You have not selected the scanner driver of the machine
in your application.
in your application.
→ Make sure that the machine’s scanner driver is selected in your
TWAIN/WIA-compliant application.
–
You have not specified all scanning preferences
appropriately.
appropriately.
→ Scanning a large area in full colour at high resolution results in a
large amount of data and extended scanning times. The scanning
preferences should be set appropriately for type of original to be
scanned, i.e., Text, Text/Graphics, Photograph, Colour, or Black
& White.
preferences should be set appropriately for type of original to be
scanned, i.e., Text, Text/Graphics, Photograph, Colour, or Black
& White.
–
Problem
Cause and solution
Page
AL-1633_1644_EX.book 52 ページ ２００３年１０月２３日 木曜日 午後８時２１分
53
5
INDICATORS AND DISPLAY
MESSAGES
MESSAGES
If one of the following indicators lights up or one of the following messages appears in the display, check the
meaning of the indicator or message in the following table and take appropriate action.
meaning of the indicator or message in the following table and take appropriate action.
Indication
Cause and solution
Page
TD cartridge
replacement
required indicator
replacement
required indicator
Steadily
lit
Replacement of TD cartridge will be needed soon. Prepare
a new cartridge.
a new cartridge.
61
Blinking
TD cartridge must be replaced. Replace it with a new one.
Drum cartridge
replacement
required indicator
replacement
required indicator
Steadily
lit
Replacement of drum cartridge will be needed soon.
Prepare a new cartridge.
Prepare a new cartridge.
62
Blinking
Drum cartridge must be replaced. Replace it with a new one.
Paper required
indicator
indicator
Steadily
lit
The tray is out of paper. Load paper. It is also possible that
the tray is not inserted completely into the machine. Make
sure it is inserted correctly.
the tray is not inserted completely into the machine. Make
sure it is inserted correctly.
17
Misfeed indicator
Blinking
A paper misfeed has occurred. Remove the misfeed as
explained in "MISFEED REMOVAL".
explained in "MISFEED REMOVAL".
54
ORIGINAL SIZE indicator
Blinking
The original is not placed in the correct orientation. Rotate the
original so that it is in the same orientation as the blinking
ORIGINAL SIZE indicator.
original so that it is in the same orientation as the blinking
ORIGINAL SIZE indicator.
16
PAPER SIZE indicator
Blinking
A blinking paper feed location means that the size of paper
loaded in the tray is different from the paper size setting for the
tray. Change the paper size setting.
To clear the display, do one of the following:
• Use the [TRAY SELECT] key (
loaded in the tray is different from the paper size setting for the
tray. Change the paper size setting.
To clear the display, do one of the following:
• Use the [TRAY SELECT] key (
) to change the tray
selection.
• Open and close the tray.
• Press the [CLEAR ALL] key (
• Press the [CLEAR ALL] key (
).
19
[CH] appears in display
Steadily
lit
The front cover or the side cover is open. Close the front
cover or the side cover.
cover or the side cover.
–
Blinking
The drum cartridge or TD cartridge is not installed correctly.
Reinstall the drum cartridge or TD cartridge. If [CH] still
blinks in the display after reinstalling the drum cartridge or
TD cartridge, contact your authorised service
representative.
Reinstall the drum cartridge or TD cartridge. If [CH] still
blinks in the display after reinstalling the drum cartridge or
TD cartridge, contact your authorised service
representative.
61
Letters and numbers appear
in the display
in the display
Turn off the power switch, wait about 10 seconds, and then
turn on the switch again. If this does not clear the message,
write down the code that appears and then unplug the
power cord and contact your authorised service
representative. Tell your authorised service representative
what code appeared and the circumstances under which it
appeared.
turn on the switch again. If this does not clear the message,
write down the code that appears and then unplug the
power cord and contact your authorised service
representative. Tell your authorised service representative
what code appeared and the circumstances under which it
appeared.
–
When "Use close paper size" is disabled
The PAPER SIZE indicator on the operation panel will blink.
You can press the [TRAY SELECT] key (
You can press the [TRAY SELECT] key (
) to select a tray
manually, or load paper in the bypass tray and press the
[ON LINE] key (
[ON LINE] key (
) to begin printing.
Online
manual
manual
Misfeed indicator
Paper required indicator
TD cartridge replacement
required indicator
required indicator
Drum cartridge replacement required indicator
Display
A3
A4
A4
A5
B4
A4
A4
A5
B4
EXTRA
AL-1633_1644_EX.book 53 ページ ２００３年１０月２３日 木曜日 午後８時２１分
54
MISFEED REMOVAL
When a misfeed occurs, the misfeed indicator (
) and a misfeed location indicator (
) will blink and the machine
will automatically stop.
Check the blinking misfeed location indicator to identify the location of the misfeed and remove it.
Check the blinking misfeed location indicator to identify the location of the misfeed and remove it.
MISFEED IN THE SPF (only on the SPF model)
1
Remove the misfed original.
Check sections A, B, and
C in the left shows the
illustration (see the next
page), and remove the
misfed original.
C in the left shows the
illustration (see the next
page), and remove the
misfed original.
Section A
Open the feeding roller cover and remove the
misfed original from the document feeder tray.
Close the feeding roller cover.
misfed original from the document feeder tray.
Close the feeding roller cover.
Section B
Open the SPF and rotate the two release rollers
in the direction of the arrow to feed the original
out. Close the SPF and then remove the
original.
in the direction of the arrow to feed the original
out. Close the SPF and then remove the
original.
If a small original (eg. A5) is misfed, open the
right side cover and remove the original. Close
the right side cover.
right side cover and remove the original. Close
the right side cover.
The paper may tear when you remove a misfeed. In this event, be sure to remove all torn pieces of paper from the
machine, taking care not to touch the drum cartridge (the green part). Any scratches or damage to the surface of
the drum will cause dirty copies.
machine, taking care not to touch the drum cartridge (the green part). Any scratches or damage to the surface of
the drum will cause dirty copies.
Note
(p.54)
(p.55)
(p.59)
AL-1644
(p.55)
AL-1633
Feeding roller cover
Roller
Right side cover
AL-1633_1644_EX.book 54 ページ ２００３年１０月２３日 木曜日 午後８時２１分
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