Read Sharp AL-840 (serv.man9) Service Manual online
Problem
Cause
Remedy
Sample (Sample No.)
Missing character
Wet paper
Print with different paper. If a paper package
is opened unnecessarily, paper absorbs
humidity in the air.
is opened unnecessarily, paper absorbs
humidity in the air.
Developer cartridge trouble
Replace the developer cartridge. Clean the
developer cartridge.
developer cartridge.
Photoconductor cartridge
trouble
trouble
Replace the photoconductor cartridge. Clean
the photoconductor cartridge.
the photoconductor cartridge.
Laser unit trouble
Replace the upper frame unit.
Control PWB trouble
Replace the control PWB.
Scanner (reading) section dirt
Clean the scanner (reading) section.
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.
Faint graphic
Uneven toner distribution
Remove the developer cartridge and shake it
to distribute toner evenly.
to distribute toner evenly.
Toner near empty
The developer cartridge replacement time
may be approached. Prepare a new
developer cartridge.
may be approached. Prepare a new
developer cartridge.
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.
Skew print
Transfer charger roller
trouble (dirt, moisture)
trouble (dirt, moisture)
Clean the roller. If the abnormality continues,
replace it.
replace it.
SMP1
Developer roller trouble (dirt,
moisture)
moisture)
Clean the roller. If the abnormality continues,
replace it.
replace it.
Paper feed roller trouble
Clean or replace the paper feed roller.
Separation sheet trouble
Clean or replace the separation sheet.
Scanner (reading) section
trouble
trouble
Adjust the installing positions of parts.
Scanner (writing) section
trouble
trouble
Replace the scanner (writing) unit.
Black streaks (paper
transport direction)
transport direction)
Developer cartridge trouble
Replace the developer cartridge.
SMP2
Photoconductor cartridge
trouble
trouble
Replace the photoconductor cartridge.
Laser unit trouble
Replace the upper frame unit.
Control PWB trouble
Repair the control PWB.
Transfer charger roller
trouble (dirt, moisture)
trouble (dirt, moisture)
Clean the roller. If the abnormality continues,
replace it.
replace it.
Developing roller trouble
(Dirt, moisture)
(Dirt, moisture)
Clean the roller. If the abnormality continues,
replace it.
replace it.
Scanner (reading) section
trouble
trouble
Clean the scanner (reading) section.
Scanner (writing) section
trouble
trouble
Clean the scanner (writing) section.
Fusing section trouble (dirt)
Clean or replace the fusing section.
White streaks (paper
transport direction)
transport direction)
Developer cartridge trouble
Clean the roller. If the abnormality continues,
replace it.
replace it.
SMP3
Photoconductor cartridge
trouble
trouble
Replace the developer cartridge.
Laser unit trouble
Replace the upper frame unit.
Control PWB trouble
Repair the control PWB.
Main charger roller trouble
(dirt, moisture)
(dirt, moisture)
Clean the roller. If the abnormality continues,
replace it.
replace it.
Transfer charger roller
trouble (dirt, moisture)
trouble (dirt, moisture)
Clean the roller. If the abnormality continues,
replace it.
replace it.
Developer roller trouble (dirt,
moisture)
moisture)
Clean the roller. If the abnormality continues,
replace it.
replace it.
Scanner (reading) section dirt
Clean the scanner (reading) section.
Scanner (writing) section dirt
Clean the scanner (writing) section.
Fusing section trouble
Clean the fusing section or replace defective
parts.
parts.
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 – 21
Click on the first or last page to see other AL-840 (serv.man9) service manuals if exist.