Ricoh Pro C901 Technical Bulletin page 201

Model:
Aries-P1.5/C1.5
The mainframe is capable of managing PM counters for a maximum of 4 fusing units.
Fusing Unit 1:
Fusing Unit 2, 3 & 4:
A decal has been registered as a new service part, which will be attached to the fusing unit
cover to distinguish between the units.
Write the fusing unit number and the counter values on this decal.
Use a marker or a ball-point pen to write the counter values
here.
Characters can be erased with an eraser (rubber).
DO NOT erase the Fusing Unit Number.
T B
echnical
Originally installed at the factory
Optional
M0774201 DECAL:COUNTER:FUSING UNIT
ulletin
Date:
15-Jul-11
PAGE: 2/8
No.:
RM077042a