Aficio 240W Service Manual

TROUBLESHOOTING

SERVICE CALL CONDITIONS

4. TROUBLESHOOTING

4.1 SERVICE CALL CONDITIONS

4.1.1 SUMMARY

There are 4 levels of service call conditions

Level Definition Reset Procedure

NOTE:

Fusing unit SCs shown on the operation panel. The machine is disabled. The user cannot reset the SC.

These SCs disable only the features that use the defective item. The user does not see these SCs in usual conditions. But, they are shown on the operation panel when the defective feature is used.

SCs that are not shown on the operation panel. They are recorded internally.

These SCs are shown on the operation panel. To reset these SCs, turn the operation switch or main power switch off and on. These SCs are shown again if the error occurs again.

1) If the problem is in an electrical circuit board, disconnect then connect the board connectors again before you replace the PCB.

2) If the problem is a motor lock, check the mechanical load before you replace a motor or sensor.

3) When a Level A or Level B SC occurs while the machine is in the SP mode, the SC number will not be shown. If this occurs, check the SC number after the machine goes out from the SP mode. This does not include Level B codes.

4) Many SC codes contain more than one level (SC303-1, SC303-2, SC303-3, and others). Some SC codes can show a “-1”, even if there is only one level.

Go into the SP mode. Set the main power switch to “off” then to “on”.

Set the main power switch to “off” then to “on”.

Recorded only.

Set the operation switch or the main power switch to “off” then to “on”.

Trouble-

shooting

SM 4-1 B125

SC CODE DESCRIPTIONS

4.2 SC CODE DESCRIPTIONS

4.2.1 SC1XXX

There are no Group 1 SC codes for this machine.

4.2.2 SC2XXX

There are no Group 2 SC codes for this machine

4.2.3 SC3XXX

Group 3 SP codes are related to image making.

Charge Corona Output Error 300 D

305 Charge Corona Wire Cleaner Error D

305-3

The charge-corona feedback voltage was less than 1 V for more than 200 ms.

The charge wire cleaner did not a) come from the home position within 5 s, or b) did not go back to the home position in

3.7 s or less. This is because of wire cleaner overload.

Temporary Solution:

Use SP2804 to disable the charge-corona cleaner function.

Writing ASIC Signal Error 330 B

At power on, the stamp function could not start.

Temporary Solution:

Use SP5137 to disable the stamp function.

• Replace the charge corona unit.

• Replace the high voltage cable.

• Clean or replace the corona wire.

• Check the CGB power pack fuse,

connection.

• Replace the CGB power pack.

• Switch the main power switch off/on.

• Check the wire cleaner unit for a

blockage or broken parts.

• Check the setting of SP5137. If the stamp option is installed, this SP must be enabled. If the stamp option is not installed, this SP must be disabled.

• Check the stamp board connections.

• Replace the defective stamp board.

B125 4-2 SM

SC CODE DESCRIPTIONS

360-1 Hard Disk Connection Error

360-1

Temporary Solution:

The machine could not detect the HDD connection.

• Check the connections between the HDD and hard disk controller.

• Check the HDD power connector.

• Replace the HDD.

• Replace the MCU.

Use SP4960 015 to disable HDD access. In this condition, the customer can use the machine until a replacement HDD becomes available.

361 Hard Disk Read Errors

361-1 361-3 361-5 361-7 361-9

Bad Sectors Max.: HDD1 Verify Error: HDD1 Formatting Error: HDD1 Device Error: HDD1 Device Error: HDD1

• Bad sector data was written to NVRAM during operation. These bad

• Do SP4960-1 (HDD Media

Check).

• Do SP4906 003 to format the HDD.

• If formatting the HDD fails,

replace the HDD.

sectors will not be used to read from or write to the hard disk.

• Bad sectors were made on the hard disk during the hard disk check done with SP4960-1. There were too many bad sector errors for the MSU (Memory Super-charger Unit) to control. Do SP4906 003 to format the hard disk.

• Bad sectors were made on the hard disk when the hard disk was formatted with SP4960-3. The hard disk must be replaced (too many bad sectors).

Trouble-

shooting

362

362-1 362-2

362-4 362-16 362-51

IMAC (Image Memory Access Controller) error

During data transfer in memory at the IPU, an error occurred during data compression with ASIC (IMAC). The ASIC controls data compression.

Video Input Error Video Output Error Operation Mode Match Error Function Failure DMA Send Error

• Update the firmware.

• If the firmware update does not stop

the problem, replace the IPU board.

• Update all software modules if this problem continues.

Note: More than one of these errors can occur together. If more than one of these errors occurs together, the SC number is the sum of the SC error codes. For example, if SC362-5 is shown, SC362-1 and SC362-4 occurred together.

SM 4-3 B125

SC CODE DESCRIPTIONS

380 MSU Output Error

Just after the machine was switched on, it could not detect that the MSU (Memory Super-charger Unit) was set.

• Replace the IPU.

392

392-1

Development Bias Error

The development bias feedback voltage was less than 0.5 V for longer than 200 ms while the PWM duty value was more than 5% (indicating a development bias leak).

• Check the MCU connectors.

• Check the harness on the MCU for

damage.

• Replace the high voltage cable.

• Replace the CGB power pack.

B125 4-4 SM

SC CODE DESCRIPTIONS

4.2.4 SC4XXX

Group 4 SC codes are also related to image making.

400 D ID Sensor Auto Adjustment Error

401 D ID Sensor Vsg Error

402 D ID Sensor Vsp Error

440 D Transfer Output Error

Vsg did not get to 4 ±0.2 V when the ID

sensor was adjusted automatically in the SP mode.

The Vsg level was detected lower than 2.5 V two times.

The Vsp level was detected at 0 V or more than 2.5 V for 2 consecutive copies.

A high voltage feedback voltage of less than 1.0 V was detected for 200 ms.

• Clean the ID sensor.

• Check the ID sensor harness and

connector.

• Replace the ID sensor.

• Replace the MCU.

• Replace the development unit.

• Replace the CGB power pack.

• Clean the ID sensor.

• Check the ID sensor harness and

connector.

• Replace the ID sensor.

• Replace the MCU.

• Replace the development unit.

• Replace the CGB power pack.

• Under the left upper cover, make sure

that the hex screw of the main drive gear of the drum is tight.

• Clean the ID sensor.

• Check the ID sensor harness and

connector.

• Replace the ID sensor.

• Replace the MCU.

• Replace the development unit.

• Replace the CGB power pack.

• Check and replace the high voltage

cable if necessary.

• Replace the CGB power pack.

Trouble-

shooting

460-1 D DC Separation Corona Output Error

460-1

A dc separation feedback voltage of less than 1.0 V was detected after more than 200

• Check and replace the high voltage cable if necessary.

• Replace the CGB power pack.

ms while the PWM duty value was more than 15%.

SM 4-5 B125

SC CODE DESCRIPTIONS

4.2.5 SC5XXX

Group 5 SC codes are related to:

• Paper feed

• Paper transport in the paper path

• Fusing

508 D Cutter Error

520 D Main Motor Error

The left and right cutter HP sensors stayed on or off more than 2 seconds.

Temporary Solution

To use the machine until it is repaired, the customer can use the manual feed tray as the default paper-feed source:

User Tools> 1 System Settings> 1 General Features> 17 Feed Start Method> Bypass

The lock signal goes LOW after the motor starts and gets to the set speed. If the main motor lock signal stayed HIGH for 5 seconds during motor operation, the motor stopped because of overloading.

• Check the connections of the HP sensors on the left and right side.

• Replace the HP sensors.

• Check that the motor drive path is not

overloaded.

• Replace the motor harness.

• Replace the motor.

521 D Drum Motor Error

The lock signal goes LOW after the motor starts and gets to the set speed. If the drum motor lock signal stayed HIGH for 5 seconds during motor operation, the motor stopped because of overloading.

• Check that the motor drive path is not overloaded.

• Replace the motor.

B125 4-6 SM

SC CODE DESCRIPTIONS

522 D Fusing Unit Drive Motor Error

The lock signal goes LOW after the motor starts and gets to the set speed. If the fusing

• Check that the motor drive path is not overloaded.

• Replace the motor.

motor lock signal stayed HIGH for 5 seconds during motor operation, the motor stopped because of overloading.

530 D Fusing Unit Ventilation Fan Error

The lock signal goes LOW after the motor starts and gets

• Check that the motor is not overloaded.

• Replace the motor.

to the set speed. If the fan motor lock signal stayed HIGH for 5 seconds during motor operation, the motor stopped because of overloading.

541 A Fusing Thermistor Errors

541-1

Fusing Thermistor Error 1

• The measured temperature

of the hot roller stayed below 7

C (44.6oF) for 60 seconds after the machine was switched on.

-or-

• During machine operation

the hot roller temperature fell to and stayed at 7

F) for 40 seconds.

(44.6

541-2

Fusing Thermistor Error 2 The analog voltage input from

the hot roller temperature was less than 2 V for three measurements. The thermistor has short-circuited.

• Make sure that the thermistor is set correctly.

Trouble-

shooting

• Make sure that the thermistor cable is connected.

• Replace the thermistor.

SM 4-7 B125

SC CODE DESCRIPTIONS

Rev. 06/2004

542

⇒

A Fusing Temperature Warm-up Error

The hot roller did not get to the ready temperature within 4 minutes 30 sec.:

• After the machine was switched on.

• After the upper unit or roll feeder drawer was closed.

• During warm-up.

Note: The ready temperature is determined by the state of the machine at recovery:

• Ready Temp. = Target Fusing Temp. (if power on or recovery starts when the hot roller is 80

• Ready Temp. = Target Fusing Temp. – 15 (if power on or recovery starts when the hot roller is less that 80

• Ready Temp. = Target Fusing Temp. – 30 starts with pressure roller inching control on.)

543 A Fusing Lamp Overheated: Error 1 (Software)

A fusing temperature more than 230 °C (446°F) was detected 3 times (measured at 180 ms intervals).

Note: A shorted triac or other problem could cause the fusing lamp to stay on.

• Check the fusing lamp connections.

• Replace the fusing lamp.

• Replace the MCU.

• Check the hot roller thermistor. Make

sure that it is straight and is touching the hot roller.

C or higher).

°C

C.)

°C (if power on or recover

• Replace the MCU.

544 A Fusing Lamp Overheated: Error 2 (Hardware)

544-1 544-2

A short circuit in the triac on the MCU caused the fusing temperature control to

stop or operate incorrectly. A special circuit on the MCU monitors the temperature of the board. The temperature around the board was more than

235

Latch Signal On (50 ms) Signal On (1 s)

• Replace the MCU.

545 A Fusing Lamp Overheated: Error 3

After it got to the ready temperature, the fusing lamp stayed on at full power for 50 seconds while the hot roller did not turn.

• Correct the position of the thermistor on the hot roller.

• Replace the fusing lamp harness.

• Replace the MCU.

B125 4-8 SM

SC CODE DESCRIPTIONS

546 A Fusing Temperature Errors

546-1

546 –2

Fusing Temperature Error 1 Fusing temperature goes up

and down quickly, more than 20°C (68°C) at 1 sec. intervals.

Fusing Temperature Error 2 temperature goes up and

down during a long interval, by 20°C (68°C) more than 3 times during a 60 sec. interval.

• Check the thermistor connection.

• Check the fusing lamp connections.

• Replace the MCU.

547 D Zero-Cross Signal Errors

547-1

547-2

The zero-cross signal from the ac power supply makes a trigger pulse to control the supply of power. It automatically detects 50/60 Hz.

Zero-Cross Signal Error 1 Just after the machine was

switched on, an unusual frequency was detected in the power supply 3 times at 50 ms intervals.

Zero-Cross Signal Error 2 No zero-cross signal detected

for 3 sec.:

• Check that the frequency of the power supply to the machine is correct.

• Replace the PSU.

• Replace the MCU

Trouble-

shooting

• At machine power on.

• After a door or cover is

547-3

549-4

closed.

Zero-Cross Signal Error 3 No zero-cross signal detected

with 10 tries and the interrupt count was less than or equal to

45. Zero-Cross Signal Error 4 No zero-cross signal detected

with 10 tries and the interrupt count was less than or equal to

66.

548 A Fusing Lamps Disconnected

The fusing temperature did not get to 100°C within 2 min. after the machine was switched on.

• Check the fusing lamp harness connections.

• Replace the fusing lamps.

• Replace the AC drive board.

SM 4-9 B125

SC CODE DESCRIPTIONS

549 A Pressure Roller Thermistor Errors

549-1

549-2

Pressure Roller Thermistor Error 1 Fusing temperature control detected

that the analog voltage output by the pressure roller thermistor was more than 5V. The pressure roller thermistor is disconnected.

Pressure Roller Thermistor Error 2 Fusing temperature control detected

(2 times at 1.5 sec. intervals) that the analog voltage output by the pressure roller thermistor was less than 0.2 V. The pressure roller thermistor has short-circuited.

• Check the thermistor connection.

• Replace the thermistor.

• Replace the MCU.

B125 4-10 SM

SC CODE DESCRIPTIONS

4.2.6 SC6XXX

Group 6 SC codes are for communication errors.

601 D Communication Error Between IPU and CIS

605 D Communication Error Between Controller and ECU

630 C CSS Communication Error (Japan Only)

A break signal was detected after the communication connection. A communication error was sent back 3 times.

One of these problems occurred:

• Serial communication error

• Serial data overflowed in the

receive data buffer.

The machine sent a report on its condition, but CSS detected an error. There is a problem on the telephone line between the machine location and the CSS center.

• Update the software.

• Replace the MCU.

• No action necessary.

Trouble-

shooting

632 D MK1 Communication Error 1: No Answer to ACK (Japan Only)

The optional counter device did not send an ACK signal 100 ms after one frame was sent, even after the same data was sent 3 times.

• Check the serial line harnesses and connectors at the counter device, the relay board, and the controller.

• Replace the counter device.

• Replace the MCU.

633 D MK1 Communication Error 2: BREAK Received (Japan Only)

A LOW break signal was received while the optional counter device was connected to the communication circuit.

• Check the serial line harnesses and connectors at the counter device, the relay board, and the controller.

• Replace the counter device.

• Replace the MCU.

SM 4-11 B125

SC CODE DESCRIPTIONS

634 D MK1 Communication Error 3: Backup RAM (Japan Only)

The optional counter device sent an error because there is a malfunction in the backup RAM.

• Check the serial line harnesses and connectors at the counter device, the relay board, and the controller.

• Replace the counter device.

• Replace the MCU.

635 D MK1 Communication Error 4: Low Battery (Japan Only)

The optional counter device sent an error because the battery voltage is unusual. There is a malfunction in the counter device control board or the backup battery.

• Check the serial line harnesses and connectors at the counter device, the relay board, and the controller.

• Replace the counter device.

• Replace the MCU.

B125 4-12 SM

SC CODE DESCRIPTIONS

4.2.7 SC7XXX

There are no Group 7 SC codes for this machine.

4.2.8 SC8XXX

There are no Group 8 SC codes for this machine.

4.2.9 SC9XXX

900 D Electrical Total Counter

901 D Mechanical Total Counter

The electrical counter is not connected.

The mechanical counter is not connected.

• Replace NVRAM chips.

• Check the mechanical

counter connection.

• Replace the mechanical counter.

980 D HDD Access Error

980-1 980-3 980-5

IDNF error (HDD1) ABRT error (HDD1) Sequence error (HDD1) An incorrect parameter was sent from

the ECU (Engine Control Unit) to the HDC (Hard Disk Controller).

981 D HDD Response Errors

981-1

981-3

981-5

Power Off Wait (HDD1) No signal from the hard disk in the 5

sec. after the ECU (Engine Control Unit) chip on the main board sent read/write commands to the HDC (Hard Disk Controller).

DMA Transfer Answer Wait (HDD1) No signal from the hard disk in the 15

sec. after the ECU (Engine Control Unit) chip on the main board sent read/write commands to the HDC (Hard Disk Controller). Spindle Motor Answer Wait (HDD1)

No signal from the hard disk in the 60 sec. after the ECU (Engine Control Unit) chip on the main board sent read/write commands to the HDC (Hard Disk Controller).

• Update the MCU firmware.

• Check the HDD Connectors.

• Check the HDD and make

sure that it is not loose.

• Update the MCU firmware.

• Replace the HDD.

Trouble-

shooting

SM 4-13 B125

SC CODE DESCRIPTIONS

991 D Software Error 1: SCU

There was an unusual operation by the software because of:

• An incorrect argument in the program.

• An incorrect internal parameter.

• Work memory not sufficient.

• An error occurred that could not be

detected by other SC codes.

• Set the main power switch to “off” then to “on”.

• Go into the SP mode.

• Input “0” for SP7405 to display

the data for SC991, which includes the software file name, line number, and variable.

992 D Software Error 2: ECU

There was an unusual operation by the software because of:

• An incorrect argument in the program.

• An incorrect internal parameter.

• Work memory not sufficient.

• An error occurred that could not be

detected by other SC codes.

• Set the main power switch to “off” then to “on”.

• Go into the SP mode.

• Input “0” for SP7405 to display

the data for SC992, which includes the software file name, line number, and variable.

B125 4-14 SM

JAM CODE TABLES

4.3 JAM CODE TABLES

When a copier jam occurs:

• The jam indicator lights ().

• A diagram on the LCD shows you

where the jam is, with instructions to help you remove the problem.

• The “Code” numbers in the table are also shown. Use SP 7507 to see the most recent codes.

Key for “Location” Column

P: Original feed C: Fusing unit B: Copy paper registration A2: Roll feed (from optional roll feeder) A1:

Cut sheet feed (for optional paper cassette)

4.3.1 COPIER JAM TABLES

Trouble-

shooting

NOTE:

1) You must open and close the upper unit to release a jam at the fusing unit.

2) If the user opens and closes the paper exit cover during copying, this is not recorded in the jam record.

3) An original or paper feed jam that occurs just after the main power switch or operation switch comes on is not recorded in the jam record.

Code

1 Roll End Sensor (EXP) B

2 Registration Sensor B

3 Fusing Exit Sensor C

40 Key Counter Jam B

55 Main Motor Overrun B

Paper Removal: Manual Feed

Manual Paper Feed with RF Selected

Meaning Location Comment

A sheet of paper is in the manual feed table at power on.

A sheet of paper is at the registration sensor in the manual paper feed path at power on.

A sheet of paper is at the fusing exit sensor (after the fusing unit) at power on.

The key counter was disconnected during a copy job.

The paper was pulled out of the manual feed tray during a copy job.

A sheet of paper was put in the manual feed tray with the roll feeder set as the paper source for the copy job.

The paper length is 650 mm longer than the maximum permitted for the manual feed tray or roll feeder.

SM 4-15 B125

JAM CODE TABLES

Code

61 Registration Sensor ON B

70 Fusing Exit Sensor OFF C

71 Fusing Exit Sensor ON C

72 Fusing Exit Sensor OFF C

81 RF Exit Sensor ON A2

86 Relay Sensor ON A1

87 Relay Sensor OFF A1

98 Roll Paper Too Short A2

99 Roll Paper Too Long A2

Registration Sensor OFF

Cassette Jam Sensor OFF

RF Drawer Open During Copying

Cassette Pulled Out During Copying

Meaning Location Comment

The leading edge fed 0.5 sec. before the time permitted for 30 mm of feed.

The leading edge fed 0.5 sec. after the time permitted for 30 mm of feed.

The trailing edge fed 0.5 sec. after the time permitted for 30 mm of feed.

The leading edge fed 0.83 sec. before the time permitted for 50 mm of feed.

The leading edge fed 0.83 sec. after the time permitted for 50 mm of feed.

The trailing edge fed 1 sec. after the time permitted for 60 mm of feed.

The leading edge fed 0.5 sec. before the time permitted for 30 mm of feed.

The leading edge fed 0.5 sec. after the time permitted for 30 mm of feed.

The trailing edge fed 0.5 sec. after the time permitted for 30 mm of feed.

The trailing edge fed 0.5 mm after the time permitted for 30 mm of feed. (The sheet from the paper cassette did not pre-feed.)

After the roll paper RF exit sensor came ON, the roll feeder drawer was opened.

The paper cassette was pulled out of the roll feeder while the paper cassette motor was operating.

The RF exit sensor of the roll feeder went OFF 0.83 sec. before the time allowed for 60 mm of feed.

The RF exit sensor of the roll feeder went OFF 0.83 sec. after the time allowed for 60 mm of feed.

B125 4-16 SM

JAM CODE TABLES

4.3.2 SCANNER JAM TABLES

Scanner Ready Check Jams

These jams (DJ01~DJ08) occur if there is an original in the original feed path at these times:

• Just after the machine power comes on

• When the machine comes back to normal operation from an energy save mode.

Code Meaning Location Comments

DJ01

DJ02

Original Set Sensor (A4:

1/2, 9")

8 Original Registration

Sensor

DJ03 A0 (34", 36") Sensor P

DJ04 A1 (22", 24") Sensor P

DJ05 A2 (17", 18") Sensor P

DJ06 A3 (11", 12") Sensor P

The original set sensor (A4: 8 ON.

The original registration sensor is ON.

The A0 (34", 36") original size sensor is ON.

The A1 (22", 24") original size sensor is ON.

The A2 (17", 18") original size sensor is ON.

The A3 (11", 12") original size sensor is

ON. DJ07 Original Exit Sensor P The original exit sensor is ON. DJ08 30"/36" Sensor P The 30"/36" sensor is ON.

DJ15 Original Scan Unit Open P

DJ16

Upper Unit Exit Cover Open

The original scanner unit on top of the

machine is open.

The upper unit is not closed, or the

release is not locked.

The original was not straight when it was

put in. The size of the original used for

DJ17 Original Skewed P

the job was not the same as data sent

from the original size sensors when the

registration sensor detected the leading

edge.

DJ20 Registration Sensor 1 P

The original registration sensor came on

before the original started to feed.

The registration sensor did not detect the

leading edge after the motor operated for

the time necessary to feed 15 mm. DJ21 Registration Sensor 2 P

The original scan job did not start even

after a start command was received from

the IPU because the original set sensor

switched OFF.

The original set sensor detected the

trailing edge and went OFF. But the

DJ22 Registration Sensor 3 P

registration sensor did not go OFF, even

after the feed rollers turned for the time

necessary to feed the original 20 mm

longer than the paper length.

DJ25 Original Exit Sensor 1 P

The original exit sensor was ON when the

machine started to scan the leading edge.

1/2, 9") is

Trouble-

shooting

SM 4-17 B125

JAM CODE TABLES

Code Meaning Location Comments

The original registration sensor detected

the leading edge and came ON. But the DJ26 Original Exit Sensor 2 P

DJ27 Original Exit Sensor 3 P

DJ30 Next Original Time Limit P

DJ31

DJ32 Original Removed P

DJ40 Original Stop P

Maximum Length Exceeded

original exit sensor stayed OFF, a long

time after the leading edge should get to

the exit rollers.

The registration sensor detected the

trailing edge and went OFF. But the

original exit sensor stayed ON.

The next original was set on the original

feed table too early. The wait time for

setting the next original did not become

expired. The original set sensor detected

the trailing edge of the first original. But

the paper set sensor detected the leading

edge of the next original before the IPU

received the scan end signal.

The length of the original was more than

the maximum length.

The original was removed before

scanning completed. The original set

sensor and original registration sensor

detected the leading edge. But the

registration sensor went OFF before the

set sensor went OFF.

The user pushed the Scanner Stop button

to remove the original.

Note: This is recorded in the jam record

(the count for original jams by location

and most recent jams).

B125 4-18 SM

COVER OPEN

4.4 COVER OPEN

Location Shut Off Lines Display

Scanner Switch Scanner motor (24 dc line) Upper Unit Switch

Toner Hopper Cover Switch

Exit Cover Switch

Drawer Connector

Toner supply clutch, paper registration clutch, drum motor, main motor, CGB power pack, cooling fan, paper junction gate solenoid, quenching lamp, pick-off pawl solenoid, fusing motor, T&S power pack (24 V dc line), fusing lamp (power relay/ac line)

Toner supply clutch, paper registration clutch, drum motor, main motor, CGB power pack (24 V dc line)

Cooling fan, paper junction gate solenoid, quenching lamp, pick-off pawl solenoid, fusing motor, T&S power pack (24 V dc line), fusing lamp (power relay/ac line)

Roll feed motor, cutter motor, roll feed clutches (24 V dc line)

Cover Open

4.5 BLOWN FUSE TABLE

PCB Fuse No.

FU001 15 A/125 V ac T6.3 A/250 V No power to fusing lamp FU002 T2 A/250 V No power to dehumidifiers

PSU

RFDB FU501

SMDB FU701

SFDB FU601 T1 A/250 V

Circuit

Breaker

FU101 T10 A/250 V ac T6.3 A/250 V No power to dc lines FU301 FU302 FU303

CP101 15 A 125/250 V ac

Specification

120V

T6.3 A/250 V No power to dc 24 V lines

T2 A/250 V

220 − 240 V

Symptom

No power to the roll feeder motor, cutter motor, clutches

No power to the scanner motor No power to the cassette feed

motor, paper feed clutch No power to power supply, dead

machine

Trouble-

shooting

SM 4-19 B125

IMAGE DATA PROCESSING FLOW CHART

4.6 IMAGE DATA PROCESSING FLOW CHART

4.6.1 DATA FLOW IN 1-TO-1 COPY MODE

Scanner Controller Printer Controller

OIPU (ASIC)

CIS VDB LPH

8 bit/pixel E/O Parallel

16.79 MHz

Stamp Ri-10 IMAC

IPU Board

HDD

(Option)

MSU

1 bit/pixel E/O Parallel

16.66 MHz

Auto Shading, Magnification, Image

OIPU:

Editing, Print Editing

Filtering

Ri-10:

(MTF, Smoothing, Independent Dot Erase, Line Width Correction) γ Correction Gradation Processing (Error Diffusion/Dither Matrix)

Data Flow

4.6.2 DATA FLOW IN REPEAT COPY MODE

B125T530.WMF

Scanner Controller Printer Controller

CIS VDB LPH

8 bit/pixel E/O Parallel

16.79 MHz

Stamp Ri-10 IMAC

IPU Board

OIPU (ASIC)

HDD

(Option)

MSU

1 bit/pixel E/O Parallel

16.66 MHz

Auto Shading, Magnification, Image

OIPU:

Editing, Print Editing

Filtering

Ri-10:

(MTF, Smoothing, Independent Dot Erase, Line Width Correction) γ Correction Gradation Processing (Error Diffusion/Dither Matrix)

Data Flow

B125T531.WMF

B125 4-20 SM

IMAGE DATA PROCESSING FLOW CHART

4.6.3 DATA FLOW IN SCANNING MODE

Scanner Controller Printer Controller

CIS VDB LPH

8 bit/pixel E/O Parallel

16.79 MHz

IPU Board

OIPU (ASIC)

Stamp Ri-10 IMAC

HDD

(Option)

MSU

1 bit/pixel E/O Parallel

16.66 MHz

Auto Shading, Magnification, Image

OIPU:

Editing, Print Editing

Filtering

Ri-10:

(MTF, Smoothing, Independent Dot Erase, Line Width Correction) γ Correction Gradation Processing (Error Diffusion/Dither Matrix)

Data Flow

B125T532.WMF

4.6.4 DATA FLOW IN PRINTING MODE (STANDARD SIZES)

Trouble-

shooting

Scanner Controller Printer Controller

CIS VDB LPH

8 bit/pixel E/O Parallel

16.79 MHz

Stamp Ri-10 IMAC

IPU Board

OIPU (ASIC)

HDD

(Option)

MSU

1 bit/pixel E/O Parallel

16.66 MHz

Auto Shading, Magnification, Image

OIPU:

Editing, Print Editing

Filtering

Ri-10:

(MTF, Smoothing, Independent Dot Erase, Line Width Correction) γ Correction Gradation Processing (Error Diffusion/Dither Matrix)

Data Flow

B125T533.WMF

SM 4-21 B125

IMAGE DATA PROCESSING FLOW CHART

4.6.5 DATA FLOW IN PRINTING MODE (LONG)

Scanner Controller Printer Controller

CIS VDB LPH

8 bit/pixel E/O Parallel

16.79 MHz

Stamp Ri-10 IMAC

IPU Board

OIPU (ASIC)

HDD

(Option)

MSU

1 bit/pixel E/O Parallel

16.66 MHz

Auto Shading, Magnification, Image

OIPU:

Editing, Print Editing

Filtering

Ri-10:

(MTF, Smoothing, Independent Dot Erase, Line Width Correction) γ Correction Gradation Processing (Error Diffusion/Dither Matrix)

4.6.6 DATA FLOW IN TEST PATTERN PRINTING

Data Flow

B125T534.WMF

Data Flow

Scanner Controller Printer Controller

CIS VDB LPH

8 bit/pixel E/O Parallel

16.79 MHz

Stamp Ri-10 IMAC

IPU Board

OIPU (ASIC)

HDD

(Option)

MSU

1 bit/pixel E/O Parallel

16.66 MHz

Auto Shading, Magnification, Image

OIPU:

Editing, Print Editing

Filtering

Ri-10:

(MTF, Smoothing, Independent Dot Erase, Line Width Correction) γ Correction Gradation Processing (Error Diffusion/Dither Matrix)

IPU Test Pattern

VDB Test Pattern

B125T535.WMF

B125 4-22 SM

IMAGE DATA PROCESSING FLOW CHART

4.6.7 IMAGE PROBLEM TROUBLESHOOTING

4.6.8 FLOW CHART

Image

Problem

VDB Test

pattern output

IPU Test

pattern output

SIB Test

Pattern Output

Problem image

area 1/3 unit.

VDB Defective

IPU Defective or

Harness defective

between the IPU

and the VDB.

SIB defective or

harness between

IPU and SIB

defective

YES

LPH Defective

Trouble-

shooting

SIB defective CIS defective

B125T540.WMF

NOTE: For the VDB/IPU test patterns, use SP2942.

SM 4-23 B125

IMAGE DATA PROCESSING FLOW CHART

4.6.9 SCANNING

1. No image (blank copy/print, or no image with only vertical black lines on the output)

Possible causes:

1) Connection problem between CIS and IPU.

2) CIS defective

2. No image (solid black copy/print, or no image with only vertical white lines on the output)

Possible causes:

1) Connection problem between CIS and IPU.

2) CIS defective

3. Light image

Possible causes:

1) Low CIS output

2) IPU board defective

B125T541.WMF

B125T542.WMF

4. Vertical black lines

Possible causes:

1) Dirty exposure glass

2) CIS defective

5. Vertical white lines

Possible causes:

1) Dirty exposure glass

2) Dirt or scratches on the white plate above the CIS

3) CIS defective

B125T543.WMF

B125T544.WMF

B125T545.WMF

B125 4-24 SM

IMAGE DATA PROCESSING FLOW CHART

6. Black or white bands with no image-width 1/8 A0 (E) size

Possible causes:

1) Connection problem between CIS and IPU

2) CIS output error

3) IPU board adjustment error

B125T546.WMF

7. White lines every 1mm pitch in halftone areas

Possible causes:

CIS defective

8. Bands/lines every 8mm pitch in halftone areas

Possible causes:

LPH defective

B125T547.WMF

B125T548.WMF

Trouble-

shooting

SM 4-25 B125

IMAGE DATA PROCESSING FLOW CHART

Rev. 06/2004

4.6.10 PRINTING

1. No Image (blank copy/print)

Possible causes:

1) VDB board defective

2) IPU board defective

3) LPH (LED head) defective

2. Band with no image-width 1/3 of image

Possible causes:

1) Connection problem between VDB and LPH

2) LPH head defective

3. Alternating black bands of 65 mm/130 mm

Possible cause:

⇒

IPU defective

65 mm

B125T549.WMF

B125T550.WMF

65 m m130 mm130 mm

B125T551.WMF

B125 4-26 SM

IMAGE DATA PROCESSING FLOW CHART

Rev. 06/2004

4.6.11 BOARD LEDS

This section shows the functions of the LEDs on the most important boards. The tables show the LEDs on the IPU, MCU, VDB, SIB, and PSU.

LED 1

LED 2

LED 3

LED 1

SIB

LED 4

VDB

LED 1 LED 2

IPU

LED 14

PSU

Vaa +24V

Vca2 -12V

Vca2 +12V

Vcc2 +5.1V Vcc1 +5.1V

LED 1

LED 2

MCU

SCU Slot

ECU Slot

TB3

123

TB4

123

LED 3

LED 4

LED 17 LED 18

LED 15 LED 16

LED 12

LED 13

LED 11

LED 10

IPU

LED 7

LED 8

LED 9

LED 5

LED 6

LED 3

LED 4

Trouble-

shooting

(Copier Back)

This illustration shows the LEDs from the rear of the copier.

• To see the LEDs near the SCU and ECU slots, you must remove the rear cover of the copier.

• To update the copier firmware, the memory card that holds the ECU and SCU programs is connected to the ECU slot and the SCU slot.

• Jumper TB4 is moved from 1-2 to 2-3 to do the NVRAM upload and download

⇒

procedure with SP5824 and SP5825.

B125T552.WMF

SM 4-27 B125

IMAGE DATA PROCESSING FLOW CHART

IPU LEDs

No. Color Meaning

LED 1 GREEN Not used. LED 2 GREEN Flashes while the HDC (Hard Disk Controller) operates.

LED 3 GREEN

LED 4 GREEN

LED 5 GREEN Lights when an FGATE signal comes from the VDIP (ASIC).

LED 6 GREEN

LED 7 GREEN

LED 8 ORANGE

LED 9 GREEN

LED 10 GREEN

LED 11 ORANGE Lights when the odd-numbered data to the printer (VDB) is “0”. LED 12 ORANGE Lights when the even-numbered data to the printer (VDB) is “0”.

LED 13 GREEN

LED 14 GREEN

LED 15 GREEN

LED 16 GREEN

LED 17 GREEN Lights when an FGATE signal from the scanner (SIB) is input. LED 18 GREEN Lights when an FGATE signal is output to the printer (VDB).

Flashes when an LSYNC signal (VORES) comes from the VDIP (ASIC).

Flashes when an LGATE signal (ACC01) comes from the VDIP (ASIC).

Lights when an XBFGATE signal comes from the VDIP (ASIC). (This is the FGATE signal output to the MCU.)

Lights when the input data signal (LSB) of the printer application is “1”.

Lights when the even-numbered data to the scanner application (MSB) is “0”.

Lights when the odd-numbered data to the scanner application (MSB) is “0”.

Lights when the even-numbered data (MSB) from the scanner (SIB) is “0”.

Lights when the odd-numbered data (MSB) from the scanner (SIB) is “0”.

Flashes when the Ri-10-1 module on the IPU operates. (During image processing, this LED goes off and on, and starts to flash again when image processing is completed.)

Flashes when the Ri-10-2 module on the IPU operates. (During image processing, this LED goes off and on, and starts to flash again when image processing is completed.)

Flashes when the Ri-10-3 module on the IPU operates. (During image processing, this LED goes off and on, and starts to flash again when image processing is completed.)

B125 4-28 SM

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