Date: Oct. 21 , 1996
COPIER : SF-2025
(Service information)
No. : SP-2043
REVISION TO SERVICE MANUAL.
1.Model Name: SF-2025
2.General: Due to misprints and omissions in the service manual for the model indicated above,
the following revisions have been made.
Locations marked with an asterisk(∗) indicate content additions, and locations marked
by underlining indicate content corrections.
SHARP CORPORATION Reprography Division
1/13
Green
C
Page 7-8 (1) Adjusting the Reference Position of Lens
Misprint/Omission
Correction
2/13
Page 7-8 (2) Adjusting the Reference Position of 4. and 5. Mirror
Misprint/Omission
Correction
3/13
Page 7-8 (3) Adjusting the Longitudinal Magnification
Misprint/Omission
4/13
Correction
5/13
Page 7-9 (4) Adjusting the Resolution
Misprint/Omission
Correction
6/13
Page 7-18 A.Developing bias output voltage check
Misprint/Omission
A. Developing bias output voltage check
Check that the output value is -215 ±5V when the exposure in the
manual exposure mode is “1.”
Simulation to check the developing bias: Sim 8-01
Correction
A. Developing bias output voltage check
Check that the output value is -215 ±5V.
Simulation to check the developing bias: Sim 8-01
Page 8-10 SIM.22-03: JAM memory display (JAM map display)
Misprint/Omission
Correction
7/13
Page 8-14 SIM.30-01: Monitoring main unit paper sensor
Misprint/Omission
Correction
8/13
Page 8-17 SIM.48-01: Front/rear direction zoom ratio adjustment
Misprint/Omission
9/13
Correction
10/13
Page 8-20 Trouble status code
Misprint/Omission
11/13
Correction
Trouble codes list (SF-2040/2030/2025)
Trouble status code Subordinate code Description
L4 01 Main motor lock detection
00
L5
L8 03 AE sensor output value error detection (only in execution of SIM 47)
H2 00 Fusing thermistor open detection
H3 00 Fusing heat roller high temperature detection
H4 00 Fusing heat roller low temperature detection
U2
U3
U4
U5
U6
U7 00 PC/Modem communication error detection
F1
F2
When F2 trouble occurs, the DV lamp and the copy quantity display blink simultaneously.
When, therefore, simulation 22-15 is performed, the trouble code and the sub code are displayed.
Blink → Execution of Sim 22-15 → Trouble code display → Start key → Sub code display
F3
E2 00 Backup memory error detection
C2 00 Transfer charger overcurrent
CC — Document size sensor level error detection
03
04
05
06
00
01
20
21
02
03
00
01
02
03
04
05
06
00
01
02
03
08
09
10
00
01
02
03
04
05
06
08
14
02
31
32
35
12
22
Lens initial error detection
No. 4/5 mirror motor error detection
No. 4/5 mirror home position (MBHPS) detection error
Lens motor error detection
Lens home position (LHPS) detection error
Memory SUM check error detection
Counter SUM check error detection
Mirror home lock detection
Mirror home position (MHPS) detection error
ADU alignment plate operation error detection
ADU rear edge plate operation error detection
ADF communication error detection
A motor operation error detection
B motor operation error detection
Resist sensor detection error
Eject sensor detection error
Timing sensor error detection
Empty sensor error detection
Desk communication error detection
Desk-1 cassette lift up error detection
Desk-2 cassette lift up error detection
Desk-3 cassette lift up error detection
Desk DC24V power error detection
Desk LCC lift up motor overcurrent detection
Desk transport motor error detection
Sorter communication error detection
Sorter jogger motor error detection (S52 only)
Sorter transport motor error detection
Sorter guide bar oscillation motor abnormality detection (S53 only)
Sorter indexer upper limit detection error (S15 only)
Sorter BIN upper /lower limit error detection (S18 only)
Sorter indexer lower limit detection error (S15 only)
Sorter home sensor error detection (S18 only)
Sorter BIN shift motor error detection
Sorter staple shift motor error detection (S53 only)
Sorter take-up sensor error detection (S18 only)
Toner hopper motor error detection
ID sensor level error detection
DM sensor level error detection
Half toner correction adjustment error detection
Main unit upper cassette liftup motor trouble detection
Main unit lower cassette liftup motor trouble detection
12/13
Trouble status code Subordinate code Description
EE
OP 00 Communication trouble between operation PWB and main PWB
EL
EU
Upper limit of toner density detected in auto developer adjustment
Lower limit of toner density detected in auto developer adjustment
List of display codes other than trouble codes
Trouble status code Subordinate code Description
CH — Cover open (lighting) / developing unit not installed (blinking)
PC — Personal counter not installed / waiting for input of auditor code
PF — Copy inhibition command is received from host in a machine with PC/modem
13/13
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