Sindoh A611dn - Manual (Page 120)

Troubleshooting
5-
16
Problem 2: Toner stains appear on the front or back of paper.
Solution: 1) Fuser may have been contaminated.
Perform “Fuser Cleaning Print” among the reports menu on p. 3-13 .
2) Check if paper comes out straight without warping or curling.
3) There may be a problem with the toner cartridge.
Replace with a new one.
4) Toner is smudged on the send roller. Clean the send roller with a cloth.
To prevent contamination, do not feed paper smaller than the image
you are printing.
5) Assign the correct paper size in Print Settings or Driver.
6) Open and close the front cover on the top of the printer.
Printer will automatically clean the send roller.
7) Cleaning roller may be contaminated. Replace the roller.
See p. 4-12 for instructions.
Problem 3: The toner is smeared on paper.
Solution: 1) Set paper weight to Heavy and choose Rough texture from the print
setting.
2) Check if the envelope lever is in the normal position. ( See p. 4-14 )
3) Check if the paper is suitable for this printer.
4) Check if correct paper type has been selected in Printer Setting or Driver.
5) Use a different type of paper. Copier paper provides the best quality.
6) The toner cartridge may be defective. Replace with a new toner
cartridge.
Problem 4: Vertical or horizontal line appears on the page.
Solution: 1) The toner may be running out. To use the remaining toner, remove the
cartridge and gently shake before reinstalling.
2) The toner cartridge may be defective. Replace with a new one.