Read Sharp AL-840 (serv.man9) Service Manual online
Problem
Cause
Remedy
Paper jams occur continuously.
Too much paper on the paper
feed tray
feed tray
Remove some paper from the paper feed tray.
Paper of unusable kind is used.
Use only the paper which satisfies the specifications.
Improper paper exit is made.
Thick paper must not be printed in the normal face down mode. Use
the face up mode.
the face up mode.
The photoconductor cartridge is
not properly installed.
not properly installed.
Install the photoconductor cartridge properly.
Slow print speed
When Windows 95 is used,
spooling is not properly set.
spooling is not properly set.
Point the start task bar setting, and click the printer.
Click the printer icon with the right button of the mouse to select the
property. Then click the setting button of detailed spool to select spool.
Click the printer icon with the right button of the mouse to select the
property. Then click the setting button of detailed spool to select spool.
Too many applications are
opened.
opened.
Close all the applications which are not used, then print.
The computer RAM disk is used.
Reduce the RAM disk size or do not use the RAM disk.
The resolution is set to 600dpi.
Set to 300dpi.
Insufficient memory capacity
(RAM) of the computer
(RAM) of the computer
Install an expansion RAM to the computer.
The low resolution print function
works.
works.
Two or more applications are
used simultaneously.
used simultaneously.
Close all the applications which are not in use, then print.
The computer RAM disk is used.
Reduce the RAM disk size or do not use it.
The resolution is set to 600dpi.
Set to 300dpi.
In the graphic dialogue box, the
error dispersion is selected.
error dispersion is selected.
Change setting to the gray pattern.
Expand the swap file size or the virtual memory size.
Gray images are not printed
properly.
properly.
The graphic option setting is
improper.
improper.
Check the setting in the graphic dialogue box.
Color display data are not printed
properly.
properly.
The half tone setting is improper.
Check the setting in the graphic dialogue box.
Printed with a different font.
TrueType font is not set.
In the font dialogue box of the control panel window, set to disable the
use of TrueType font.
use of TrueType font.
3. Troubleshooting of copy/print quality
Problem
Cause
Remedy
Sample (Sample No.)
Insufficient, irregular density
of printing
of printing
Paper quality problem
Use paper which satisfies the printer
specification.
specification.
Uneven toner distribution
Remove the developer cartridge and shake it
to distribute toner evenly.
to distribute toner evenly.
Main charger, transfer
charger, developing bias
voltage abnormality
charger, developing bias
voltage abnormality
Check the output voltage and replace
defective parts. Adjust the output voltage.
defective parts. Adjust the output voltage.
Main charger, transfer
charger, developing charger
bias output pin connection
failure
charger, developing charger
bias output pin connection
failure
Check connection and clean the contact
section of electrodes.
section of electrodes.
Transfer charger roller
trouble (dirt, humidity)
trouble (dirt, humidity)
Clean the roller. If the abnormality continues,
replace the roller.
replace the roller.
Developing roller trouble (dirt,
humidity)
humidity)
Clean the roller. If the abnormality continues,
replace the roller.
replace the roller.
Developer cartridge trouble
Clean the developer cartridge. If the
abnormality continues, replace it.
abnormality continues, replace it.
Photoconductor cartridge
trouble
trouble
Clean the photoconductor cartridge. If the
abnormality continues, replace it.
abnormality continues, replace it.
Scanner (reading) section dirt
Scanner (reading) section cleaning
Scanner (writing) section dirt
Scanner (writing) section cleaning
Thank you very much for buying a SHARP laser printer. This manual
tells you how to set up, operate and maintain your new printer,
and contains advice on how to get the best performance from the printer.
The descriptions contained in this manual assume that you are familiar
with the operation of your computer and with how to send files to be printed.
Please use this manual along with the documentation for your computer
hardware and software.
Your new printer has been specially designed to give you high-quality,
trouble-free printing performance. The printer driver software lets the printer
communicate with your computer via an IEEE P1284 bidirectional parallel
interface, so you can control all aspects of printing from the Windows Printer
control panel on your computer screen. Printing speed is a maximum
4 pages per minute at resolutions of 300 x 300 dpi for
the JX-9200 and 600 x 600 dpi for the JX-9210.
Consideration has also been given to ecological and environmental factors.
Your printer features low power consumption, and after printing is
completed it switches to a standby mode which complies with
the US EPA Energy Star program. Moreover, no harmful ozone is
produced during printing, and the toner self-recycling technology
ensures that no toner is wasted. Printer operation is also very
quiet: the printer generates less than 45 dBA of acoustic noise
during printing, and during standby mode the noise level is no
higher than the background noise level.
Despite being packed with so many features, the printer is very compact.
Its footprint is no larger than a single A4 page, and the total weight is
approximately 5 kg, meaning that it is easy to transport and set up. The
100-sheet multipurpose tray is also located at the top of the printer to
save space and to make inserting the paper easy.
Most software applications will let you adjust the margins to have around
the edges of the paper that you will be printing on. The area inside the
margins then becomes the "printable area". The Windows Printer Driver
specifies the minimum values that you can set for these page margins.
These minimum margin settings vary depending on whether you are
printing from a Windows application or from a non-Windows application
in PCL emulation mode.
The following illustration and tables show the minimum settings that can
be made in your software applications in both Windows and PCL modes.
tells you how to set up, operate and maintain your new printer,
and contains advice on how to get the best performance from the printer.
The descriptions contained in this manual assume that you are familiar
with the operation of your computer and with how to send files to be printed.
Please use this manual along with the documentation for your computer
hardware and software.
Your new printer has been specially designed to give you high-quality,
trouble-free printing performance. The printer driver software lets the printer
communicate with your computer via an IEEE P1284 bidirectional parallel
interface, so you can control all aspects of printing from the Windows Printer
control panel on your computer screen. Printing speed is a maximum
4 pages per minute at resolutions of 300 x 300 dpi for
the JX-9200 and 600 x 600 dpi for the JX-9210.
Consideration has also been given to ecological and environmental factors.
Your printer features low power consumption, and after printing is
completed it switches to a standby mode which complies with
the US EPA Energy Star program. Moreover, no harmful ozone is
produced during printing, and the toner self-recycling technology
ensures that no toner is wasted. Printer operation is also very
quiet: the printer generates less than 45 dBA of acoustic noise
during printing, and during standby mode the noise level is no
higher than the background noise level.
Despite being packed with so many features, the printer is very compact.
Its footprint is no larger than a single A4 page, and the total weight is
approximately 5 kg, meaning that it is easy to transport and set up. The
100-sheet multipurpose tray is also located at the top of the printer to
save space and to make inserting the paper easy.
Most software applications will let you adjust the margins to have around
the edges of the paper that you will be printing on. The area inside the
margins then becomes the "printable area". The Windows Printer Driver
specifies the minimum values that you can set for these page margins.
These minimum margin settings vary depending on whether you are
printing from a Windows application or from a non-Windows application
in PCL emulation mode.
The following illustration and tables show the minimum settings that can
be made in your software applications in both Windows and PCL modes.
10 – 19
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