Toshiba Bsx4t Manual
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10. MAJOR UNIT REPLACEMENT EO18-33012A 10.11 MEDIA SENSORS (UPPER, LOWER) 10- 28 10.11.2 Replacing the Media Sensor (Upper) 1) Remove the sensor cover (upper) from the sensor holder (upper) while unhooking the two hooks. 2) Detach the media sensor (upper) from the sensor holder (upper). 3) Replace the media sensor (upper) with a new one, then reassemble in the reverse order of removal. At this time, take care of the following points. · When reassembling the media sensor (upper), fit the positioning pins of the sensor holder (upper) into the positioning holes. · When reassembling the sensor cover (upper), fit the cut portion onto the portion A of the sensor holder (upper). Sensor Cover (Upper) Sensor Holder (Upper) Media Sensor (Upper) Hook Hook Media Sensor (Upper) Sensor Holder (Upper) Positioning Pin Portion A Cut Portion Positioning Pin Positioning Hole Media Sensor (Upper) Sensor Cover (Upper) Sensor Holder (Upper)
10. MAJOR UNIT REPLACEMENT EO18-33012A 10.11 MEDIA SENSORS (UPPER, LOWER) 10-29 10.11.3 Replacing the Media Sensor (Lower) 1) Remove the sensor cover (lower) from the sensor holder (lower) while unhooking the two hooks. 2) Detach the media sensor (lower) from the sensor holder (lower). 3) Replace the media sensor (lower) with a new one, then reassemble in the reverse order of removal. At this time, take care of the following points. · When reassembling the media sensor (lower), fit the positioning pins of the sensor holder (lower) into the positioning holes. · When reassembling the sensor cover (lower), fit the cut portion onto the portion B of the sensor holder (lower). Sensor Cover (Lower) Media Sensor (Lower) Hook Hook Media Sensor (Lower) Sensor Holder (Lower) Positioning Pin Cut Portion Positioning Pin Positioning Hole Media Sensor (Lower) Sensor Cover (Lower) Sensor Holder (Lower) Portion B Sensor Holder (Lower)
10. MAJOR UNIT REPLACEMENT EO18-33012A 10.11 MEDIA SENSORS (UPPER, LOWER) 10-30 10.11.4 Reassembling the Media Sensor Ass’y After replacing the media sensors, reassemble the media sensor ass’y into the printer in the following procedure. 1) Attach the sensor guide to the media sensor ass’y so that the tabs slide along the rails. 2) Connect the black harness to the media sensor (upper) and the white harness to the media sensor (lower), respectively. Sensor Guide Media Sensor Ass’y Rail Tab Rail Tab Sensor Harness Black Harness White Harness Media Sensor (Upper) Media Sensor (Lower)
10. MAJOR UNIT REPLACEMENT EO18-33012A 10.11 MEDIA SENSORS (UPPER, LOWER) 10-31 3) Attach the sensor guide to the printer so that the hook fits onto the frame. Attach the media sensor ass’y. Also attach the sensor shaft to the printer so that it passes through the two shaft holders. 4) Close the printer block. 5) Fix the sensor shaft with the E-3 e-ring. (Refer to Section 10.11.1.) 6) Attach the media sensor (upper) to the pinch roller block with the two TT-3x5 screws. (Refer to Section 10.11.1.) 7) Attach the side panel (L) to the printer. 8) Perform a sensor adjustment in System mode. 9) Perform a test print. Make sure that printing was performed correctly. 10) Refer to Sections 5.5.7 and 6.1 to adjust the feed gap/black mark sensor. Sensor Guide (Hook) Media Sensor Ass’y Sensor Shaft Sensor Shaft Sensor Guide Media Sensor Ass’y Shaft Holder
10. MAJOR UNIT REPLACEMENT EO18-33012A 10.12 HEAD UP SENSOR 10-32 10.12 HEAD UP SENSOR 1) Remove the side panel (L). (Refer to Section 3.2.) 2) Remove the operation panel. (Refer to Section 3.4.) 3) Disconnect the sensor harness from the head up sensor ass’y. 4) Remove the SMW-3x6 screw to detach the head up sensor ass’y from the printer. Head Up Sensor Ass’y Sensor Harness SMW-3x6 Screw Head Up Sensor Ass’y
10. MAJOR UNIT REPLACEMENT EO18-33012A 10.12 HEAD UP SENSOR 10-33 5) Detach the head up sensor from the head up sensor plate in the following steps. NOTE: The head up sensor is attached to the plate with the four hooks. (1) Pull the head up sensor in the direction indicated by the arrow to unhook the two hooks on the connector side. (2) Move the head up sensor in the direction indicated by the arrow to unhook the other hooks. (3) Detach the head up sensor from the plate. 6) Replace the head up sensor with a new one, then reassemble in the reverse order of removal. At this time, take care of the following points. · When reassembling, make sure that the head up was attached to the head up sensor plate in the correct direction. · Fit the positioning tabs of the head up sensor plate into the positioning holes of the printer frame. (1) (2) (3) Hook Head Up Sensor Plate Head Up Sensor Positioning Tab Head Up Sensor Plate Positioning Hole
10. MAJOR UNIT REPLACEMENT EO18-33012A 10.13 PRINTER OPEN SENSOR 10-34 10.13 PRINTER OPEN SENSOR 1) Remove the side panel (L). (Refer to Section 3.2.) 2) Disconnect the sensor harness from the printer open sensor ass’y. 3) Remove the SMW-3x6 screw to detach the printer open sensor ass’y from the printer. 4) Detach the printer open sensor from the printer open sensor plate in the following steps. NOTE: The printer open sensor is attached to the plate with the four hooks. (1) Pull the printer open sensor in the direction indicated by the arrow to unhook the two hooks on the connector side. (2) Move the printer open sensor in the direction indicated by the arrow to unhook the other hooks. (3) Detach the printer open sensor from the plate. Printer Open Sensor Ass’y Sensor Harness SMW-3x6 Screw Printer Open Sensor Plate (1) (2) (3) Printer Open Sensor Hook
10. MAJOR UNIT REPLACEMENT EO18-33012A 10.13 PRINTER OPEN SENSOR 10-35 5) Replace the printer open sensor with a new one, then reassemble in the reverse order of removal. At this time, take care of the following points. · When reassembling, make sure that the printer open sensor was attached to the printer open sensor plate in the correct direction. · Fit the positioning tabs into the positioning holes of the printer frame. Positioning Tab Printer Open Sensor Plate Positioning Hole
10. MAJOR UNIT REPLACEMENT EO18-33012A 10.14 RIBBON END SENSOR 10- 36 10.14 RIBBON END SENSOR 1) Open the top cover. (Refer to Section 3.1.) 2) Open the printer block. (Refer to Section 3.3.) 3) Remove the SMW-3x6 screw to detach the ribbon end sensor ass’y from the printer. 4) Disconnect the sensor harness from the ribbon end sensor ass’y, and then detach the ribbon end sensor ass’y from the printer. Ribbon End Sensor Ass’ySMW-3x6 Screw Sensor Harness Ribbon End Sensor Ass’y
10. MAJOR UNIT REPLACEMENT EO18-33012A 10.14 RIBBON END SENSOR 10- 37 5) Remove the SMW-3x6 screw to detach the ribbon end sensor and the ribbon end sensor cover from the ribbon end sensor plate. 6) Replace the ribbon end sensor with a new one, then reassemble in the reverse order of removal. At this time, take care of the following points. · When reassembling, make sure that the ribbon end sensor was attached to the ribbon end sensor plate in the correct direction. · Assemble the ribbon end sensor cover and the ribbon end sensor so that the photo coupler is positioned at the center of the round hole of the cover. · Be careful not to damage the sensor. · Make sure that the sensor harness doesn’t appear out of the printer block. If so, the sensor harness may touch the ribbon and the media causing a print failure. Ribbon End Sensor Plate Ribbon End Sensor Cover Ribbon End Sensor SMW-3x6 Screw Photo Coupler Sensor Harness Printer Block Ribbon End Sensor Ass’y