Sharp SF-2040 Service Manual page 115

Main code Sub code
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22 04 Total misfeed counter display
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05 Total counter display
This counter is used to show the total copy number of the machine.
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06 Developer counter display
The contents of the copy number counter of the installed developing unit is displayed.
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07 Developer preset cycle counter display
Number of developer replacements and the reset counter contents of the installed developing unit are
displayed.
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08 RADF counter display
Used to check the number of originals fed through the RADF.
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09 Duplex counter display
Used to check the number of sheets fed through the duplex unit.
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10 Staple counter display
Used to check the number of uses of the staple unit.
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11 Developer adjustment time display
Used to check the correction level according to the developer rotating time.
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12 Drum adjustment time display
Used to check the correction level according to the drum rotating time.
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13 Key operator code display
Used to check the key operator code registered voluntarily by the key operator.
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14 ROM version display
Used to display the version of ROM which is currently installed.
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15 Trouble memory display
Used to display the number of troubles occurred and the trouble codes up to 50 cases from the latest
one.
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16 Cassette paper feed counter display
Used to check the counter value of each cassette.
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24 01 Misfeed map memory and total misfeed counter clear
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03 RADF counter clear
The contents of the copy number counter is reset for the RADF.
It is mandatory to clear the memory contents after the maintenance is completed.
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04 Duplex counter clear
The contents of the copy number counter is reset to the duplex unit.
It is mandatory to clear the memory contents after the maintenance is completed.
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05 Staple counter clear
The staple unit using counter is cleared to zero.
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06 Developer adjustment time clear
The developer adjustment time is cleared to zero.
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07 Drum adjustment time clear
The drum adjustment time is cleared to zero.
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08 Tray paper feed counter clear
Used to clear the tray paper feed counter.
25 01 Main motor activation
•
Used to check malfunction in the main motor drive train. (Rotates for 3 min.)
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Also, monitors the toner density sensor. (Sensor output value display)
C → =↵ →
02 Automatic developer adjustment
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This is the test command used to monitor the toner sensor and to automatically set the developer.
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For automatically setting developer, the developing tank is stirred and the toner sensor output is
monitored. The sensor is monitored 16 times in 3 minutes after the stirring started and the mean
value is stored in the memory as the toner density referance value. (See the area marked with an
asterisk in the figure below.) ( Afterwards, referance changes as copies are made to maintain
density.)
C → =↵ →
→ =↵ → 2 →
0
MM
DVBIAS
THV
DL
100m
sec
→ =↵ → 2 →
0
Description
→ PSW → → PSW
5 1
900msec
3min
→ PSW → → PSW
5 2
8 – 9
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