IM 2500 / 3500 / 4000 / 5000 / 6000

Covers

• IM 2500
• IM 3000
• IM 3500
• IM 4000
• IM 5000
• IM 6000

Field notes

• Mono IM family. Fusing SCs 541–547 still apply. No color process control — ID sensor work is simpler.
• SP entry is the same SOP 2.x sequence.
• Single PCU. SC302/325/396 refer to that one unit, not a color bank.

PM interval

PCU ~60–120k depending on speed, fuser ~120–180k

Key SP numbers

• SP5-810-001SC reset
• SP3-001ID / process related (confirm on FSM)
• SP5-990SC history
• SP7-804PM counters

Unit locations

• Fusing unit

  Right door

• PCU

  Front door, single black unit

• Controller

  Rear

Hot codes on this family

Start here on a call

• Enter SP mode

  SOP / IM C: Reset → 806182 → hold C. Then 5812# (phone on counter), 5810# (SC reset), 5990# (print SMC).

• SC reset (SP5-810)

  Clear a latched Level A/B service call after the repair is actually done.

• Read SC history

  The standing SC is rarely the whole story. History tells you what led up to it.

• Forced process control

  Run MUSIC / process control after PCU, developer, ITB, or ID sensor work.

• Developer initialization

  Init TD sensor / developer after a PCU or developer swap. Skipping this is a textbook SC325.