Canon mf6600 Series Service Manual

22 2-82-8Technical Overview > Document Exposure/feeder System > Service Tasks > Service NotesTechnical Overview > Document Exposure/feeder System > Service Tasks > Service NotesJam DetectionThe following cases are judged as jam.1. In case of delay in reaching DS/DES or stationary during scanning of original2. In case DS/DES is detected as ON at power-on (residual paper jam)3. In case of detecting original of which length is 400 mm or longerOperation after Detection of JamThe host machine stops scanning operation and displays "CHECK DOCUMENT" on thecontrol panel. No jam code is displayed.In case of the model equipped with fax function (with built-in speaker), the warning beepoccurs at the detection of jam.How to release Jam.Remove the jammed paper and open / close the ADF upper cover••Service TasksAction for Parts ReplacementOutline of the measures is described in this section. For the detailed procedure, refer to the"SCANNING SYSTEM ADJUSTMENT (Refer to page 5-2)".Reader Unit1) Enter the setting value of the Standard White Plate.2) Execute the color/B&W AGC adjustment.3) Execute the reading position adjustment.4) Execute the white level adjustment.5) Enter the value on the label packed with the part in the service mode item.6) Execute the image reading adjustment at ADF reading.Reader Unit Upper Cover (Copyboard Glass)1) Enter the value on the label affixed on the glass in the service mode item.2) Execute the reading position adjustment.3) Execute the white level adjustment.Contact Sensor Unit1) Execute the color/B&W AGC adjustment.2) Execute the auto detection of the reading position at DF stream reading.3) Execute the white level adjustment.4) Execute the image reading position adjustment.5) Execute the image reading adjustment at ADF reading.MaintenanceNo periodically replaced parts, durable parts or periodical service is set for this product.Service NotesNone