Sharp DM 2010 - B/W Laser Printer Manual de instalación descargar pdf (Pagina 20)

Main

code

Sub

code

Detail of trouble

F9 88 Cause Printer PWB connector

disconnection

Printer PWB MCU PWB harness

failure

Printer PWB mother board

connector pin breakage.

Printer PWB ROM defect,data

failure

Check and

remedy

Check the connectors and harness

of the printer PWB and the MCU

PWB.

Check grounding of the machine.

Check the ROM of the printer

PWB.

H2 00 Content Thermistor open detection

Detail Fusing thermistor open

Cause Thermistor defect

MCU PWB defect

Fusing section connector contact

failure

Power supply failure

Fusing unit not installed

Check and

remedy

Check the harness and the

connector of the thermistor and

the MCU.

Clear the self diag display with

SIM 14.

H3 00 Content Heat roller abnormally high

temperature

Detail Fusing temperature of 220 !

240˚C.

Cause Thermistor defect

MCU PWB defect

Fusing connector connection failure

Power supply failure

Check and

remedy

Check the heater lamp blinking

with SIM 5-2.

When the lamp blinks normally:

Check the thermistor and the

harness. Check the MCU PWB

thermistor input circuit.

When the lamp lights up instead

of blinking:

Check the lamp control circuit of

the power supply PWB and the

MCU PWB.

Clear the trouble with SIM 14.

H4 00 Content Heat roller abnormally low

temperature

Detail When the temperature does not

reach 155˚C within 55 sec after

turning on the power, or when it

falls under 145˚C during printing,

or when it falls under 100˚C

during pre-heating.

Cause Thermistor failure

Heater lamp failure

MCU PWB failure

Thermostat failure

Power supply failure

Interlock switch failure

Main

code

Sub

code

Detail of trouble

H4 00 Check and

remedy

Check blinking of the heater lamp

with SIM 5-2.

When the lamp blinks normally:

Check the thermistor and the

harness.

Check the MCU PWB thermistor

input circuit.

When the lamp does not light:

Check for heater lamp

disconnection or thermostat

disconnection.

Check the interlock switch.

Check the power supply PWB

and MCU PWB lamp control

circuit.

Clear the trouble with SIM 14.

L1 00 Content Mirror base feed trouble

Detail The mirror home position (MHPS)

does not turn off though the feed

operation is completed during

mirror initial operation after turning

on the power.

The mirror home position (MHPS)

does not turn off during shading

operation.

The mirror home position (MHPS)

does not turn on when the mirror

base is returned for the specified

time after copy feed is started and

SPF scanning position shift is

performed.

Cause Mirror unit defect

Mirror home position sensor defect

MCU PWB defect

Scanner wire disconnection

Check and

remedy

Check the scanning operation with

SIM 1-1.

L3 00 Content Mirror base return trouble

Detail The mirror home position (MHPS)

does not turn on though the mirror

base returning is completed during

mirror initial operation after turning

on the power.

The mirror home position does not

turn on when the mirror is

returned to the home position

during shading.

The mirror home position (MHPS)

does not turn on when the mirror

base returning is completed for

the specified time (about 6 sec)

after copy return start.

Cause Mirror unit

Mirror home position sensor defect

MCU PWB defect

Scanner wire disconnection

Check and

remedy

Check the scanning operation with

SIM 1-1.

L4 01 Content Main motor lock

Detail The main motor encoder pulse is

not detected for 400msec.

Cause Main motor defect

Harness disconnection between

the MCU PWB and the main

motor.

Control circuit failure

AR-162 TROUBLE CODE LIST – 6

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