Read Sharp AR-280 (serv.man12) Service Manual online
Code
Function (Purpose)
Purpose
Section
Item
Main
Sub
8
6
Used to check and adjust the transfer
charger current and the control circuit.
charger current and the control circuit.
Adjustment/
Operation test/check
Operation test/check
Image process
(Photoconductor/
Developing/Transfer/
Cleaning)
(Photoconductor/
Developing/Transfer/
Cleaning)
Copy
7
Used to check and adjust the operation of
the separation charger voltage and its
control circuit.
the separation charger voltage and its
control circuit.
Adjustment/
Operation test/check
Operation test/check
Image process
(Photoconductor/
Developing/Transfer/
Cleaning)
(Photoconductor/
Developing/Transfer/
Cleaning)
Others
9
1
Used to check the operation of the loads
(clutches and solenoids) in the duplex
section and the control circuit.
(clutches and solenoids) in the duplex
section and the control circuit.
Operation test/check
Duplex
Operation
2
Used to check the operation of sensors
and detectors in the duplex section and
the control circuit.
and detectors in the duplex section and
the control circuit.
Operation test/check
Duplex
Operation
4
Used to check the operation of the duplex
unit alignment plate and its control circuit.
unit alignment plate and its control circuit.
Operation test/check
Duplex
Operation
10
0
Used to check the operation of the toner
motor and its control circuit.
(Note)
Do not execute this simulation with toner
in the toner hopper. If executed, excessive
toner may enter the developing section,
causing an overtoner trouble. Be sure to
remove the toner motor from the toner
hopper before executing this simulation.
motor and its control circuit.
(Note)
Do not execute this simulation with toner
in the toner hopper. If executed, excessive
toner may enter the developing section,
causing an overtoner trouble. Be sure to
remove the toner motor from the toner
hopper before executing this simulation.
Operation test/check
Image process
(Photoconductor/
Developing/Transfer/
Cleaning)
(Photoconductor/
Developing/Transfer/
Cleaning)
Developer/
Toner Hopper
Toner Hopper
Operation
13
0
Used to cancel the self diag U1 trouble.
Clear/Cancel (Trouble
etc.)
etc.)
Trouble
Error
14
0
Used to cancel the self diag
U1/LOC/U2/PF troubles.
U1/LOC/U2/PF troubles.
Clear/Cancel (Trouble
etc.)
etc.)
Trouble
Error
15
0
Used to cancel the self diag U4 -
09/20/21/22 (large capacity tray) trouble.
09/20/21/22 (large capacity tray) trouble.
Clear/Cancel (Trouble
etc.)
etc.)
Paper transport
Trouble
Error
16
0
Used to cancel the self diag U2 trouble.
Clear/Cancel (Trouble
etc.)
etc.)
Trouble
Error
17
0
Used to cancel copy inhibition by the host
computer during the self diag PF.
computer during the self diag PF.
Clear/Cancel (Trouble
etc.)
etc.)
Communication unit
(TEL/LIU/MODEM etc.)
(TEL/LIU/MODEM etc.)
Trouble
Error
21
1
Used to set the maintenance cycle.
Setting
Specifications
Counter
22
1
Used to check the print out count of each
section in each operation mode.
(Used to check the maintenance timing.)
section in each operation mode.
(Used to check the maintenance timing.)
Operation data
output/Check
(Display/Print)
output/Check
(Display/Print)
Counter
2
Used to check the total numbers of
misfeed and troubles. (When the number
of misfeed is considerably great, it is
judged as necessary for repair. The
misfeed rate is obtained by dividing this
count value with the total counter value.)
misfeed and troubles. (When the number
of misfeed is considerably great, it is
judged as necessary for repair. The
misfeed rate is obtained by dividing this
count value with the total counter value.)
Operation data
output/Check
(Display/Print)
output/Check
(Display/Print)
Trouble
3
Used to check the misfeed positions and
the number of misfeed in each position. (If
the number of misfeed is considerably
great, it can be judged as necessary for
repair.) (Sections other than
ADF/RADF/SPF sections)
the number of misfeed in each position. (If
the number of misfeed is considerably
great, it can be judged as necessary for
repair.) (Sections other than
ADF/RADF/SPF sections)
Operation data
output/Check
(Display/Print)
output/Check
(Display/Print)
Trouble
Mis-feed
4
Used to check the total trouble (self diag)
history.
history.
Operation data
output/Check
(Display/Print)
output/Check
(Display/Print)
Trouble
5
Used to check the ROM version of each
unit (section).
unit (section).
Others
Software
6
Used to output the list of the setting and
adjustment data (simulations, FAX soft
switch, counters).
adjustment data (simulations, FAX soft
switch, counters).
Operation data
output/Check
(Display/Print)
output/Check
(Display/Print)
Data
Adjust/Setting
data
data
7
Used to display the key operator code.
(This simulation is used when the
customer forgets the key operator code.)
(This simulation is used when the
customer forgets the key operator code.)
User data output/Check
(Display/Print)
(Display/Print)
Data
User data
8
Used to check the number of use of the
staple, the ADF, RADF, SPF, and
scanning.
staple, the ADF, RADF, SPF, and
scanning.
Operation data
output/Check
(Display/Print)
output/Check
(Display/Print)
Counter
9
Used to check the number of use of each
paper feed section. (the number of prints)
paper feed section. (the number of prints)
Operation data
output/Check
(Display/Print)
output/Check
(Display/Print)
Paper transport
Counter
8 – 4
Click on the first or last page to see other AR-280 (serv.man12) service manuals if exist.