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MAINTENANCE GUIDE
1.7.4
List of Diagnosis Codes
Diagnosis
LCD Display
Operation
Code
(Top Row)
Counter
30
PRINT COUNTER
Displays the number of pages to be printed.
Input Test
02
SENSOR CHECK
Shows whether or not the switches and sensors are
operating properly.
07
FUSER TEMP. SET
Displays a temperature code corresponding to the
temperature set in the fuser controller.
08
FUSER TEMP.
Displays a temperature code corresponding to the
present temperature of the fuser.
80
SOLENOID TRAY0
Operates the feed solenoid in the input tray (for 0.5
seconds only).
90
MOTOR MAIN
Operates the main motor in the drive assembly.
91
HVPS (C.ROLL AC)
The HVPS applies an AC voltage to the charge roller
(CR).
92
HVPS (C.ROLL DC)
The HVPS applies a DC voltage to the charge roller
(CR).
93
HVPS (DEV.BIAS)
The HVPS applies a –DC/AC voltage to the magnetic
roller (DB).
94
HVPS (T.ROLL –)
The HVPS applies a –DC voltage to the bias transfer
roller (TR(–)).
95
HVPS (T.ROLL +)
The HVPS applies a +DC voltage to the bias transfer
roller (TR(+)).
00
EXIT DIAG.
Turns OFF the output test.
00
SIZE SENSOR
The main function does not operate.
00
CHECK SUM
Displays the SUM of the ROM.
Caution 1:
Diagnosis code 00 (“EXIT DIAG.”) can only be used to stop diagnosing in output test mode; it cannot
be used to initiate diagnosis mode.
Caution 2 : Only the diagnosis codes that are described above can be executed.
Output
Test
Summary of Contents for WinType 4000
Page 1: ...WinType 4000 TECHNICAL MANUAL SECOND EDITION LASER PRINTER ...
Page 4: ......
Page 6: ... 2 GENERAL SPECIFICATIONS ...
Page 14: ... 10 THEORY OF OPERATION ...
Page 26: ... 22 THEORY OF OPERATION Figure 2 9 Electrical ...
Page 28: ... 24 REPLACEMENT AND ADJUSTMENT OF PARTS ...
Page 62: ... 58 REPLACEMENT AND ADJUSTMENT OF PARTS ...
Page 64: ... 60 MAINTENANCE GUIDE ...
Page 114: ... 110 MAINTENANCE GUIDE ...
Page 116: ... 112 TROUBLESHOOTING ...
Page 176: ... 172 5 ELECTRICAL 5 1 Disassembly Drawing 1 2 3 4 14 4 14 2 14 1 14 3 13 12 11 6 5 7 8 9 10 ...
Page 179: ......