Sharp MX-2314N Service Manual

MX3114N TROUBLESHOOTING 7 – 11
E7-20 LSU laser detection error (K)
E7-21 LSU laser detection error (C)
E7-22 LSU laser detection error (M)
E7-23 LSU laser detection error (Y)
E7-28 LSU - PCU connection error
E7-29 LSU ASIC frequency error
E7-49 Water Mark data error
E7-50 Combination error between PWB and
firmware (PCU PWB detection)
E7-55 PCU PWB information sum error
Trouble content
Detail PCU
Cause Laser optical axis misalignment
Reduced laser power, lighting error, laser diode
trouble.
LSU harness, connector trouble
LSU trouble
Check & Remedy Use SIM61-1 to check the operation of the LSU.
Check or replace the LSU control PWB.
Check connection of the LSU harness.
Replace the LSU.
Trouble content
Detail PCU
Cause Laser optical axis misalignment
Reduced laser power, lighting error, laser diode
trouble.
LSU harness, connector trouble
LSU trouble
Check & Remedy Use SIM61-1 to check the operation of the LSU.
Check or replace the LSU control PWB.
Check connection of the LSU harness.
Replace the LSU.
Trouble content
Detail PCU
Cause Laser optical axis misalignment
Reduced laser power, lighting error, laser diode
trouble.
LSU harness, connector trouble
LSU trouble
Check & Remedy Use SIM61-1 to check the operation of the LSU.
Check or replace the LSU control PWB.
Check connection of the LSU harness.
Replace the LSU.
Trouble content
Detail PCU
Cause Laser optical axis misalignment
Reduced laser power, lighting error, laser diode
trouble.
LSU harness, connector trouble
LSU trouble
Check & Remedy Use SIM61-1 to check the operation of the LSU.
Check or replace the LSU control PWB.
Check connection of the LSU harness.
Replace the LSU.
Trouble content
Detail PCU
Cause Communication error between the CPU in the PCU
PWB and the LSU control ASIC.
Improper connection of the communication connector
between the PCU PWB and the LSU control PWB
(interface PWB).
Harness trouble between the PCU PWB and the LSU
control PWB (interface PWB)
PCU PWB trouble.
LSU control PWB trouble.
LSU trouble.
LSU mother PWB trouble.
Check & Remedy Check connection of the connector and the harness
between the PCU PWB and the LSU control PWB
(interface PWB).
Replace the LSU mother PWB.
Replace the PCU PWB.
Replace the LSU.
Replace the LSU control PWB.
Trouble content
Detail PCU
Cause Oscillation abnormality of the external oscillator and
the internal oscillating circuit used in the LSU ASIC.
LSU ASIC abnormality on the LSU ASIC PWB.
Check & Remedy Replace the LSU control PWB.
Trouble content
Detail MFP
Cause Watermark data trouble.
HDD trouble.
Check & Remedy Use SIM49-5 to upload the watermark data.
Replace the HDD.
Trouble content
Detail PCU
Cause A PWB/firmware/LSU which is not compatible with
the machine specifications is detected.
PCU PWB trouble
LSU trouble
Check & Remedy Check the kind and the version of the firmware.
Check or replace the LSU.
Check or replace the PCU PWB.
Trouble content PCU EEPROM PWB information sum error
Detail PCU
Cause PCU EEPROM sum check error.
PCU EEPROM trouble.
PCU EEPROM contact trouble.
Check & Remedy Replace the PCU PWB.
Replace the PCU EEPROM.

Sharp MX-2314N Specifications

General

Print Technology	Laser
Print Speed	23 ppm
Print Resolution	600 x 600 dpi
Scan Resolution	600 x 600 dpi
Copy Speed	23 cpm
Copy Resolution	600 x 600 dpi
Fax Transmission Speed	33.6 Kbps
Duplex Printing	Yes
Connectivity	USB, Ethernet
Functions	Print, Copy, Scan, Fax
Paper Size	A3, A4, A5, B4, B5
Max Paper Size	A3
Original Size	A3