*1: Replace the print head only after the print head deep cleaning is performed 2 times, and when the problem persists.
- Logic board
- Purge drive system unit
Paper gets smeared.
(1) Clean the inside of the machine.
(2) Perform bottom plate cleaning.
(3) Perform paper feed roller cleaning.
(4) Replace the following item(s):
- Pressure roller unit (if smearing is heavy)
- Print head
*1
(when smearing is caused by
the print head)
The back side of paper gets smeared.
(1) Clean the inside of the machine.
(2) Perform bottom plate cleaning.
(3) Examine the platen ink absorber.
(4) Examine the paper eject roller.
(5) Replace the following item(s):
- The part in the paper path causing the
smearing
Graphic or text is enlarged on printouts in the
carriage movement direction.
(1) Confirm that the carriage slit film is free
from smearing or scratches:
- Cleaning of the timing slit film.
(2) Replace the following item(s):
- Timing slit film
- Carriage unit
- Logic board
- Scanner unit (for copying)
Graphic or text is enlarged on printouts in the
paper feed direction.
(1) Confirm that the LF / EJ slit film is free from
smearing or scratches:
- Cleaning of the LF / EJ slit film..
(2) Replace the following item(s):
- LF / EJ slit film
- LF / EJ timing sensor unit
- Platen unit
- Logic board
- Scanner unit (for copying)
Faulty scanning
No scanning.
(1) Replace the following item(s):
- Scanner unit
- Logic board
Streaks or smears on the scanned image.
(1) Clean the platen glass and the document
pressure sheet.
(2) Confirm the position of the document
pressure sheet.
(3) Replace the following item(s):
- Scanner unit
- Document pressure sheet
- Logic board
Network connection problem No printing.
(1) Examine if printing is performed properly
via USB connection.
(2) Confirm the network settings.
(3) Replace the following item(s):
- Logic board (for wired / wireless LAN)
- WLAN board (for wireless LAN)
FAX problem
No FAX sending or reception.
(1) Confirm the FAX settings.
(2) Replace the following item(s):
- Modular board
- Logic board
<2. LIST OF ERROR DISPLAY / TROUBLESHOOTING>
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Содержание PIXMA MX870 Series
Страница 8: ...5 63 ...
Страница 9: ...6 63 ...
Страница 31: ...8 Remove the main case no screws 28 63 ...
Страница 34: ...31 63 ...
Страница 35: ...4 Remove the LCD ass y no screws 5 Remove the panel board 11 screws 32 63 ...
Страница 39: ...2 Remove the PE sensor board 5 screws 36 63 ...
Страница 64: ... 2 Service test print Service test print sample unified inspection pattern print 61 63 ...
Страница 65: ... 3 Ink absorber counter value print Print sample 4 6 Verification After Repair 62 63 ...
