Ricoh M281 Series Service Manual page 793

1001 Bit Switch
Change the number of PS criterion used by the PS interpereter to
determine whether a job is PS data or not. For details, refer to page 4-1
"Printing Features".

Pattern3: The larger the pattern number, the greater the number of
criterion used.

Pattern1: A small number of PS tags and headers
bit 4 Increase max. number of stored jobs.
Changes the maximum number of jobs that can be stored on the HDD.
The default (disabled) is 100. If this is enabled, the max. will be raised to
750 or 1000 depending on the model.
bit 5 Not used
bit 6 Method for determining the image rotation
for the edge to bind on.
If enabled, the image rotation will be performed as they were in the
specifications of older models for the binding of pages of mixed
orientation jobs.
The old models are below:
- PCL: Pre-04A models
- PS/PDF/RPCS:Pre-05S models
bit 7 Letterhead mode printing
Routes all pages through the duplex unit.
If this is disabled, simplex pages or the last page of an odd-paged duplex
job, are not routed through the duplex unit. This could result in problems
with letterhead/pre-printed pages.
Only affects pages specified as Letterhead paper.
SM Appendix
Disabled
(100)
-
Disabled
Disabled
3-153
Printer Service Mode
Enabled
-
Enabled
Enabled
(Duplex)
D255/D256/M281/M282