Toshiba Bsx4t Manual

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...

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...

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),...

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...

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....

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...

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...

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. 
·...