Ricoh B286, Service Manual, Page: 539 / 622

Image Writing
SM 6-31 B286/B289
Det
ails
6.5 IMAGE WRITING
This machine uses an LPH (LED Print Head) [A] that sends light directly to the OPC drum
to make a latent image.
The A0-size 600-dpi print head is an array of connected self-focusing lenses [B] above an
LED array [C] and drive board [D], and attached to a heat sink [E].
!
The maximum printing width of the print head is 914 mm (36”).
The LPH has three sections: LPH 1, LPH 2, and LPH 3. The two joints between the
sections are identified as “LPH 1-2” and “LPH-2-3” (see above).