AR-505 (serv.man11). AR505 Service Manual-Trouble Code List - Sharp Copying Equipment Service Manual (repair manual). Page 7

Trouble code

Description

Main
code

Sub

code

F9

90

Content Printer communication trouble (PRT

detection)

Detail

Communication setup
error/framing/parity/protocol error

Cause

Slave unit PWB connector improper
connection
Slave unit PWB – ICU PWB harness
trouble
Slave unit PWB mother board connector
pin breakage

Check
and
remedy

Check the slave unit PWB and the ICU
PWB connector connection.
Check the copier earth.

H2

00

…

HL1

01

…

HL2

Content Thermister open

Fusing unit not installed

Detail

Thermister is open (more than 4.6-V
input voltage is detected).
Fusing unit not installed

Cause

Thermister defective
Control PWB defective
Improper connection of fusing connector
AC power supply defective
Fusing unit not installed

Check
and
remedy

Check harness and connector between
thermister and control PWB.
Clear the display of self-diagnostics with
SIM14.

H3

00

…

HL1

01

…

HL2

Content Heat roller high temperature detection
Detail

The fusing temperature is over 241.5° C
(less than 1.3-V input voltage is
detected.)

Cause

Thermister defective
Control PWB defective
Improper connection of fusing unit
connector
AC power supply defective

Check
and
remedy

Check heater lamp operation with
SIM5-2.
If lamp blinks properly:
  Check thermister and its harness.
  Check thermister input circuit of control
PWB.
If lamp lights and stays lit:
  Check lamp control circuits of AC PWB
and control PWB.
Clear the trouble with SIM14.

Trouble code

Description

Main
code

Sub

code

H4

00

…

HL1

01

…

HL2

Content Heat roller low temperature detection
Detail

The temperature does not reach the
preset value within the specified time (3
min. in usual modes; 5 min. in curl
correction mode.) after the power relay is
turned on.

Cause

Thermister defective
Heater lamp defective
Control PWB defective
Thermostat defective
AC power supply defective
Interlock switch defective

Check
and
remedy

Check heater lamp for blinking with
SIM5-2.
If lamp blinks properly:
  Check thermister and its harness.
  Check thermister input circuit of control
PWB.
If lamp does not light:
  Check heater lamp for broken wire and
thermostat for operation.
  Check interlock switch.
  Check lamp control circuit of AC PWB
and control PWB.
Clear the trouble with SIM14.

H5

01

Content 3 continuous POD1 not-reaching JAM

detection

Detail

3 continuous POD1 not-reaching JAM
detection

Cause

Check that the fusing JAM is completely
cancelled. (Jam paper may be
remained.)
POD1 sensor trouble or improper
harness connection
Improper installation of the fusing
harness.

Check
and
remedy

Check JAM paper in the fusing section.
(Winding, etc.)
Check POD1 sensor harness. Check the
fusing unit installation.
Cancel the trouble with SIM 14.

02

Content Fusing thermistor abnormality
Detail

Fusing thermistor temperature transient
abnormality (Paper winding)

Cause

Paper winding to fusing roller
Fusing pawl abnormality
Fusing unit installation abnormality

Check
and
remedy

Check for jam (winding) paper in the
fusing section.
Check for installation of the fusing unit.
Check the fusing pawl.
Cancel the trouble with SIM 14.

L1

00

Content Scanner feed trouble
Detail

Scanner feed is not finished within the
specified time. (timer is change by
magnification)

Cause

Mirror unit defective
Scanner wire disconnected

Check
and
remedy

Check scanning operation with SIM1-1.

AR-505

9 – 6

8/6/1999