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FC-210/310 TROUBLESHOOTING 4 - 72 February 2002 © TOSHIBA TEC
Cause/Section
Step
Check items Measures Remarks
Density 1 Is the density too high? Perform the automatic gamma
adjustment.
Fuser unit 2 Is the pressure between the fuser Check the pressure removal parts
roller and lower heat roller proper? and pressure mechanism.
3 Is the thermostat in contact? Establish its contact.
4 Is there scratch on the fuser belt Replace the fuser belt or the
or lower heat roller surface? lower heat roller.
5 Is the fuser belt or lower heat Replace the fuser belt or the
roller life ended? lower heat roller.
6 Are the upper/lower heat rollers Check and correct the control
temperature proper? circuit.
Paper 7 Check the paper type and mode. Select proper paper type and mode.
8 Is non-recommended paper used? Use recommended paper.
Developer material 9 Is the specified developer used? Use the specified developer and toner.
Scanner 10 Are mirrors or original glass Clean them.
or lens dirty?
Printer section 11 Check the printer output image. Output the test print pattern (04- See steps
231) and check it. 12 and 13 if
defect occurs.
Printer density 12 Is the density of printer output Perform the image quality control Repeat 2-3
abnormal* image too high? forcibly (05-878). Output and times if
check the test print pattern (04-231). necessary.
Image quality control 13 Is the control activated? Check the image quality control
related codes.
(6) Toner offset
* When adjusting printer section, perform "image quality control forced performing" and then "automatic gamma
adjustment".
Approx.
220mm
Black solid
Toner offset (Shadow image appears approx. 220 mm behind the high density image.)
Feeding direction
Shadow image