DPP-FP97 - Sony Other Service Manuals Service Manual (repair manual). Page 12

2-3E

DPP-FP97

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 thermal printer 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 thermal printer 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 thermal printer.

Trouble:

Streaks appear on the printing side of paper in the pa-
per 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 cas-

sette, or replace it.

• If trouble persists after performing the cleaning, re-

place the thermal printer.

Trouble:

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

Cause:

• Abnormal thermal printer
• Abnormal ribbon cassette

Remedy:

• Replace the thermal printer.
• Check the assembling and damage status of ribbon

cassette.

Trouble:

Print output is apparently abnormal. (White paper ejec-
tion, 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 MAI board.
• Replace the thermal printer.

Trouble:

Faint area appears on the printing side.

Cause:

Abnormal thermal printer

Remedy:

Replace the thermal printer.

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 pa-
per. 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 oc-
cur.

• 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 print-
ing paper may be warped badly. In such case, normal paper feed-
ing 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 possi-
ble, check the trouble with the equipment that the customer uses.