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13

Note:
Download the latest firmware and obtain the technical memo from
the GPS homepage.

About the firmware:
The firmware of DPP-FP50 (hereafter referred to as this unit) is
stored in IC101 (flash memory) on the BGA board.
The firmware can be written or upgraded using the memory stick
by adopting the flash memory as a program storage memory.

Writing of firmware:
Be sure to write the latest firmware after replacing the BGA board
or IC101 on the BGA board. Otherwise, the normal operation cannot
be performed.

Version Upgrade
Perform the version upgrade when the functional upgrade (firmware
version upgrade) is required.

[Procedure of firmware writing and version upgrade]
1. Download the latest firmware (hereafter referred to as firmware)

from the GPS homepage.

2. Copy the firmware (downloaded and uncompressed folder) to

the root directory of the memory stick.

3. Insert the memory stick into the memory stick slot of this unit.
4. Insert one power cord plug into the AC adapter (AC-S24V1)

supplied with this unit and insert the other power cord plug into
the receptacle.

5. Insert the DC plug of the supplied AC adapter into the DC-IN

terminal of this unit.

6. Press the [ON/STANDBY]  button while pressing the [MENU]

button.

7. Release the button when the access lamp (at the side of compact

flash card slot) starts flashing.

8. After several minutes, check that the access lamp changes to

stay lit.
(Completion of firmware or version upgrade)

9. Disconnect the power cord from the receptacle and remove the

memory stick from this unit.

10. Insert the power cord into the receptacle and connect the color

monitor with the VIDEO OUT terminal of this unit using the
video cable.

11. Press the [ON/STANDBY]  button while pressing the [ENTER]

and [CANCEL] buttons simultaneously. (Service mode starts.)

12. Release all buttons when the initial screen of the service mode

is displayed on the color monitor.

13. Check that the “CHECKSUM” value displayed in the lower

left of the screen is the same as the value in the technical memo.
Note:
The “CHECK SUM” value displayed on the screen is an
example. It varies depending on the firmware.

14. Turn on the power and disconnect the power cord from the

receptacle.

14

Power supply

Memory card

External

connection

Power cannot be

turned on.

Memory Stick cannot be

recognized.

SD card cannot be

recognized.

Compact flash cannot be

recognized.

PictBridge-capable

camera cannot be

recognized.

Personal computer cannot

be recognized.

VIDEO OUT cannot be

output.

1. MAIN board: Check of CN203, F302, IC201, IC404, IC410, Q205, Q207,

Q417 and peripheral circuits.
• Is 5.0 V output to TP456?
• Is 3.3 V output to TP428?
• Isn’t F302 shorted?

2. BGA board:

IC101, IC102, IC103 and peripheral circuits

• Is 3.3 V output to TP104?
• Is 1.6 V output to TP101?

1. MSSD board: Check of CN601, CN602, IC601 to IC603, peripheral circuits

and harnesses.
• Is 3.3 V input to 9-pin of CN602?

2. BGA board:

Check of CN103, IC104, Q102, Q103 and peripheral circuits.

• When the Memory Stick is inserted, is 12-pin (MS detection) of CN103 in

the L state?

3. Check if the image in the Memory Stick is applicable file format (JPEG,

BMP, TIF).

4. Check if the Memory Stick has no problem.

1. MSSD board: Check of CN601, CN603, IC601 to IC603, peripheral circuits

and harnesses.
• When SD is inserted, is 3.3 V input to 4-pin of CN603?

2. BGA board:

Check of CN103, IC104, Q104, Q105 and peripheral circuits.

• When SD is inserted, is 10-pin (SD detection) of CN103 in the L state?

3. Check if the image in the SD card is applicable file format (JPEG, BMP, TIF).

4. Check if the SD card has no problem.

1. MAIN board: Check of CN301, IC301 to IC309 and peripheral circuits.

• Is 5 V output from 8-pin of IC304 (3.3 V is input to 1-pin)?

2. Check if the image in the compact flash is applicable file format (JPEG,

BMP, TIF).

3. Check if the compact flash has no problem.

1. Check the communication by “USBTest”in the service mode.

2. MAIN board: Check of CN201, CN203 to IC304, peripheral circuits and

harnesses
• Is 5 V output from 5-pin of IC304? (Is 3.3 V input to 4-pin?)
• Check of FB201 and L201.

3. BGA board:

Check of CN102, IC104 and peripheral circuits.

• Check of R102, R104, R105 and R140.

4. USBA board: Check of CN801 and peripheral circuits.

1. Check the communication by “USBTest”in the service mode.

2. MAIN board: Check of CN202, CN203 and peripheral circuits.

• Is 5 V output to TP201 when PC is connected.
• Check of L203 and Q201.

3. BGA board:

Check of CN102, IC103 and peripheral circuits.

• Check of R107, R108, R141 and R142.

1. MAIN board: Check of CN203, IC405, J401 and peripheral circuits.

2. BGA board:

Check of CN102, IC104 and peripheral circuits.

• Check of R120 and R121.

15

The troubles caused by the mechanical deck can be classified into
the following 3 groups.
• Paper handling cannot be performed normally. (Paper feed/eject

trouble)

• Ink ribbon cannot be fed normally. (Ribbon trouble)

• Printing cannot be performed normally. (Printing trouble)

Example of each trouble, and the cause and remedy are described.

1. Paper feed/eject trouble
Trouble:

• Paper cannot be fed from the paper tray.

• Although the paper is fed from the paper tray, it is

stopped halfway.

Check:

• Check if the PU lever operation is normal by

performing the mode transition operation by Mechanic
Test in the service mode.

Normal:

Other cause

Abnormal: Abnormal mechanical deck assembly
Others:

• Decrease in frictional force due to the contamination

of paper feed roller

• Abnormal installation of paper tray

Remedy:

• When the mechanical deck assembly is abnormal,

replace the mechanical deck.

• When the paper feed roller contamination is the cause,

perform the cleaning (wipe dry) of paper feed roller.

• When the paper tray installation is abnormal, check

if the PU lever is placed under the tray plate and
reinstall the paper tray.

Indication and

operation

LCD of main unit cannot

be displayed.

There is no response to

the key operation on the

operation panel.

There is no response to

the remote control

operation.

Printed image is

abnormal, or printing

cannot be made.

1. SW board:

Check of ND701, CN702 and peripheral circuits.

• Is 3.3 V output to 1-pin of CN702.

2. MAIN board:

Check of CN203, CN402, IC411 and peripheral circuits.

3. BGA board:

Check of CN102, IC104 and peripheral circuits.

1. Check the button operation by “Button Test” in the service mode.

2. SW board:

Check of CN702, R701 to R713, S701 to S711 and

peripheral circuits.

3. MAIN board: Check of CN203, CN402, IC409, IC411 and peripheral circuits.

4. BGA board:

Check of CN102, IC104 and peripheral circuits.

1. MAIN board: Check of CN203, IC401, IC404 and peripheral circuits.

2. BGA board:

Check of CN102, IC104 and peripheral circuits.

1. Print the density check pattern (gray) by “Mechanic Test” in the service

mode and check the image.

2. MAIN board: Check of CN107, CN203, IC403, IC409, IC412 and

peripheral circuits.

• Isn’t FB301 shorted?
• Check of THP401.

3. BGA board:

Check of CN102, IC101, IC102, IC103 and peripheral circuits.

Trouble:

• Paper is normally fed, but the paper is ejected without

printing (white paper).

• Multiple sheets of paper are fed continuously.

(Multiple feed)

Cause:

Paper detection failure

Remedy:

• Replace the MAIN board.

• If the trouble persists after the MAIN board is

replaced, replace the mechanical deck.

Trouble:

Although paper is fed, it is ejected backwards as it is.

Cause:

Paper detection failure

Remedy:

• Replace the MAIN board.

• If the trouble persists after the MAIN board is

replaced, replace the mechanical deck.

Trouble:

Paper is folded and stuck in the printer, and it cannot be
removed. (Paper jamming)

Cause:

• Abnormal mechanical deck assembly

• Abnormal print cartridge

Remedy:

• Remove the mechanical deck assembly from the lower

cabinet and remove the paper.

• When the mechanical deck assembly is abnormal,

replace the mechanical deck.

• Check the print cartridge. (Deformation, damage,

slack in ribbon, etc. of print cartridge)

2. Ribbon trouble
Trouble:

Ribbon is wrapped around the grid roller and pinch
roller, and cannot be removed. (Ribbon jamming)

Cause:

• Abnormal print cartridge

• Abnormal mechanical deck

Remedy:

• Remove the mechanical deck assembly from the lower

cabinet. Rotate the gear that is engaged with the
stepping motor gear and remove the ribbon.

• When the mechanical deck assembly is abnormal,

replace the mechanical deck.

16

Trouble:

Colored streaks appear on the printing side of paper.
(Paper wrinkle occurred.)

Cause:

• Abnormal mechanical deck

• Abnormal ribbon cassette

Remedy:

• Replace the mechanical deck assembly.

• Check the assembling and damage status of ribbon

cassette.

Trouble:

Print output is apparently abnormal. (White paper
ejection, partial white streaks, wide black band, etc.)

Cause:

• Connection failure of the flexible flat cable (FFC) of

thermal head (disconnected, not correctly inserted)

• Abnormal connector of FFC of thermal head (bridge)

• Abnormal thermal head

Remedy:

• Check if FFC is correctly connected.

• Replace the MAIN board.

• Replace the mechanical deck assembly.

Trouble:

Faint area appears on the printing side.

Cause:

Abnormal mechanical deck assembly

Remedy:

Replace the mechanical deck assembly.

Before checking the recurrence of abnormal state
When checking the abnormal state, be careful of the following.
• Only the specified print pack (ribbon and printing paper) can be

used in this unit.
Check the customer’s ribbon and printing paper.
The ribbon and printing paper can be used only once. In case that
the customer rewinds the ribbon or reuses the paper intentionally,
the trouble such as entangling of ribbon may occur.

• In case that the print pack is exposed to high temperature or high

humidity environment for long time after it is opened, the specified
performance may not be obtained.
Especially, the printing paper may be warped badly. In such case,
normal paper feeding and printing may not be performed. If
possible, check the condition of customer’s print pack.

• The abnormal printing may be caused by the digital camera,

memory card or PC that the customer uses. Therefore, if possible,
check the trouble with the equipment that the customer uses.

Trouble:

• Ribbon continues to rotate at the start of printing.

• Ribbon does not rotate at the start of printing.

Cause:

• Abnormal mechanical deck assembly

• Abnormal MAIN board

• Abnormal installation of paper tray and print cartridge

Remedy:

• Replace the MAIN board.

• If the trouble persists after the MAIN board is

replaced, replace the mechanical deck.

• Reinstall the paper tray and print cartridge.

Trouble:

• Paper is ejected without printing (white paper) and

“Print cartridge is not correct” is displayed.

Cause:

• Print cartridge assembly failure

• Abnormal mechanical deck assembly

• Abnormal MAIN board

Remedy:

• Replace the ribbon cassette.

• Replace the MAIN board.

• If the trouble persists after the MAIN board is

replaced, replace the mechanical deck.

3. Printing trouble
Trouble:

Abnormal print appears on the printing side of paper at
regular pitch intervals in the paper feed direction.

Note:

• Pitch interval 22 mm: Abnormal pinch roller

• Pitch interval 31.4 mm/15.7 mm:

Abnormal platen roller

• Pitch interval 9.4 mm: Abnormal grid roller

• Other cases:

Abnormal gear, etc.

Cause:

• Adhesion of foreign substances (such as dust and

grease)

• Defective molding of platen roller

• Flaw, damage

Remedy:

• When the dust adheres to the pinch roller, perform

the cleaning using the cleaning cartridge supplied with
this unit.
(If trouble persists after performing the cleaning once,
repeat the cleaning a few times.)

• Remove the mechanical deck assembly from the lower

cabinet and perform the cleaning of each roller.
(Remove the dust or other contamination using the
tools such as a cloth-wrapped stick in its end, sellotape
or gum tape.)

• Remove the mechanical deck assembly from the lower

cabinet and remove the foreign substances adhered to
the gear.

• If the trouble is caused by the flaw or damage of parts,

replace the mechanical deck assembly.

Trouble:

Streaks appear on the printing side of paper in the paper
feed direction.

Cause:

• Adhesion of foreign substances to thermal head

• Thermal head breakage

• Flaw or adhesion of foreign substance on the ribbon

cassette (contact area on the printing side)

• Flaw or burr on the paper of printing side

Remedy:

• Perform the cleaning using the cleaning cartridge

supplied with this unit.

• Remove the foreign substance from the ribbon

cassette, or replace it.

• If trouble persists after performing the cleaning,

replace the mechanical deck assembly.