Canon FAX-L1000 - Manual (Page 601)

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FAX-L1000 Chapter 5: Appendix
"TONER CARTRIDGE MISSING" message appears when it is installed
<Possible causes>
1.Poor contact between the printer contact and the cartridge contact
Action: Clean the contacts if dirty. Replace the part(s) if deformed or damaged, or the
problem still remains after cleaning.
2.Defective cartridge
Action: Replace the cartridge.
3.Defective ECNT board
Action: Replace the ECNT board.
4.Defective SCNT board
Action: Replace the SCNT board.
5.Defective TWINS board
Action: Replace the TWINS board.
6.Defective PDL board
Action: Replace the PDL board.
"CASSETTE 1 MISSING" message appears when it is installed
<Possible causes>
1.Damaged cassette size lever in the cassette
Action: Replace the lever.
2.Defective paper size detection board
Action: Replace the paper size detection board.
3.Defective ECNT board
Action: Replace the ECNT board.
4.Defective SCNT board
Action: Replace the SCNT board.
5.Defective TWINS board
Action: Replace the TWINS board.
6.Defective PDL board
Action: Replace the PDL board.
"PRINTER OPEN" message appears when the cover is closed
<Possible causes>
1.Damaged cartridge door lever
Action: Replace the cartridge door.