22 2-92-9Technical Overview > Original Exposure System > Service Tasks > Notes on service tasksTechnical Overview > Original Exposure System > Service Tasks > Notes on service tasksJ21234B0/B0A0/A0Main Controller PCBM3Detecting Jam■ Jam Detection Outline● OutlineThe following cases are judged as ADF 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 longer• Operation 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 (withbuilt-in speaker), the warning beep occurs at the detection of jam.• How to release JamRemove the jammed paper and open / close the ADF upper cover.F-2-7Service Tasks■ At parts replacementNo task is required for this product at parts replacement.■ MaintenanceNo periodically replaced parts, durable parts or periodical service is set for this product.■ Notes on service tasksNone.
