Replacing The Ps Unit And Reactor - Toshiba B-852-R Series Maintenance Manual

2. MAJOR UNIT REPLACEMENT

2.10 Replacing the PS Unit and Reactor

1. Hazardous electrical parts. Before disassembling the unit, unplug the power cord from the mains.
2. As the printer block and PS unit are heavy, be careful not to pinch your fingers or drop it on your
feet.
3. The PS unit should be replaced as a unit. Never disassemble the PS unit. Doing so may cause a
fire or machine failure.
NOTE: The reactor is installed in the B-852-TS22-QP-R and B-852-TS22-CN models.
1) Remove the side covers L, side cover R and MAIN PC Board from the printer.
2) Raise the print head block.
3) Remove the platen.
4) Remove the four SMW-4x8 screws to remove the power supply block from the printer block.
SMW-4x8 Screw
Printer Block
WARNING!
SMW-4x8 Screw
2-20
(Revision Date: May 21, 2007)
2.10 Replacing the PS Unit and Reactor
SMW-4x8 Screw
SMW-4x8 Screw
Power Supply Block
EO18-33018