- HP Printer User Manual
Table Of Contents
- hpLaserJet 9055mfp (Q3631A) hpLaserJet 9065mfp (Q3632A)
- service manual
- Contents
- How to use this manual
- Safety
- MFP overview
- Overview of system
- hpLaserJet9055mfp/9065mfp product specifications
- Central cross-sectional view
- Drive system diagram
- Fuser/web drive section
- Drum drive section
- Developing drive section
- Paper feed/vertical conveyance/tray up drive sections
- Tray1 paper feed/automatic duplex unit (ADU) pre-registration drive section
- Charging and transfer/separation wire cleaning drive section
- Automatic Duplex Unit (ADU) conveyance drive section
- Paper exit drive section
- Toner supply drive section
- Optics drive section
- MFP unit explanation
- MFP disassembly/assembly
- External section
- Drive section
- Scanner section
- Laser scanner unit
- Drum unit
- Corona unit
- Screws that must not be removed
- Removing and reinstalling the charging corona unit
- Removing and reinstalling the charge control plate
- Replacing the charging wires
- Removing and reinstalling the charging wire cleaning unit
- Removing and reinstalling the PCL
- Cleaning the charging corona unit/PCL
- Removing and reinstalling the transfer/separation corona unit
- Removing and reinstalling the plunger prevention plate
- Replacing the transfer/separation wires and transfer/separation wire cleaning block
- Removing and reinstalling the TSL unit
- Developing unit
- Toner supply unit
- Cleaning/toner recycle unit
- Paper feed units of Trays2 and3
- Removing and reinstalling the paper feed unit
- Removing and reinstalling the paper feed Trays2 and3
- Removing and reinstalling the paper pick roller and pick roller rubber
- Removing and reinstalling the separation roller rubber
- Replacing the pre-registration and feed clutches (MCs)
- Replacing the wires
- Wire lengths
- Installing wires
- Paper feed unit of Tray3
- Removing and reinstalling the paper feed unit
- Removing and reinstalling paper feed Tray 3
- Removing and reinstalling the paper pick roller and pick roller rubber
- Removing and reinstalling the separation roller rubber
- Replacing the pre-registration and feed clutches (MCs)
- Replacing the wires
- Wire lengths
- Installing wires
- Tray1
- Vertical conveyance section
- ADF unit
- Pulling out and reinstalling the ADU stand
- Cleaning the paper mis-centering PS (PS70)/leading edge PS (PS43)
- Removing and reinstalling the registration MC (MC1)
- Removing and reinstalling the second paper feed unit (registration assembly)
- Cleaning the registration PS (PS44)
- Removing and reinstalling the registration roller
- Removing and reinstalling the pre-transfer roller
- Cleaning the automatic document feeder paper reverse PS (PS45)/ Reverse/Exit PS (PS46)
- Removing and reinstalling the ADF reverse roller
- Removing and reinstalling the ADU stand
- Removing and reinstalling the pre-registration roller
- Removing and reinstalling the ADU conveyance roller3 and4
- Removing and reinstalling the ADU conveyance roller1 and2
- Removing and reinstalling the paper reverse/exit roller
- Fuser
- Removing and reinstalling the fuser
- Removing and reinstalling the fuser (top)
- Removing and reinstalling the web cover
- Removing and reinstalling the cleaning web
- Replacing the fusing heater lamps (L2, L3)
- Replacing the fusing heater lamp (L4)
- Removing and reinstalling the fusing separation claw (upper) unit and fusing separation claws (up...
- Removing and reinstalling the fusing separation claw (lower) unit and fusing separation claws (lo...
- Removing and reinstalling the fusing upper roller
- Removing and reinstalling the fusing lower roller
- Removing and reinstalling the decurler roller
- Removing and reinstalling the fusing temperature sensors1 and2
- Removing and reinstalling the thermostat/U (TS1)
- Removing and reinstalling the thermostat/L (TS2)
- Product comparison
- Environmental Product Stewardship Program
- Terminology cross-reference
- Index
- automatic document feeder (Q3644A)
- 4000-sheet high capacity input (A4/Letter - Q3637A) (A3/Ledger - Q3638A)
- Contents
- HCI overview
- HCI unit explanation
- HCI disassembly/assembly
- Explanation
- Paper feed section
- Cleaning the paper dust removing brush
- Cleaning the HCI feed PS (PS106)/HCI first paper feed PS (PS107)
- Removing and reinstalling the pick roller unit
- Replacing the pick roller rubber/feed roller rubber
- Replacing the separation roller rubber
- Replacing the HCI feed MC (MC101)/HCI first paper feed MC (MC102)
- Replacing the Q3637A up/down wires
- Replacing the Q3638A up/down wires
- Index
- stapler/stacker (Q3633A) multifunction finisher (Q3634A)
- Contents
- Finisher overview
- Finisher unit explanation
- Finisher disassembly/assembly
- External section
- Removing and reinstalling the booklet tray (Q3634A only)
- Removing and reinstalling the top cover/1
- Removing and reinstalling the top cover/2
- Removing and reinstalling the side cover
- Removing and reinstalling the front door
- Removing and reinstalling the rear cover
- Removing and reinstalling the main tray
- Removing and reinstalling the main paper exit opening cover
- Removing and reinstalling the booklet paper exit opening cover (Q3634A only)
- Conveyance section
- Main tray section
- Stacker section
- Stapler section
- External section
- Index
- post insertion kit (Q3636A)
- punch kit (Q3689A, Q3635A, Q3690A, Q3691A)

ENWW Safety warnings 5
Safety
Symbols used for safety and important warning items are defined as follows
Safety warnings
Modifications not authorized by hp
HP MFPs are renowned for their high reliability. This reliability is achieved through high-quality
design and a solid service network.
MFP design is a highly complicated and delicate process where numerous mechanical,
physical, and electrical aspects have to be taken into consideration, with the aim of arriving at
proper tolerances and safety factors. For this reason, unauthorized modifications involve a high
risk of degradation in performance and safety. Such modifications are therefore strictly
prohibited. The points listed below are not exhaustive, but they illustrate the reasoning behind
this policy.
Precaution when
using the MFP
General precaution Electric hazard High temperature
Prohibition when
using the MFP
General prohibition Do not touch with wet hand Do not disassemble
Direction when
using the MFP
General instruction Unplug Ground/Earth
WARNING: Prohibited actions
● Do not use any cables or power cord not specified by
HP.
● Do not use any fuse or thermostat not specified by
HP.
● Safety will not be assured, leading to a risk of fire
and injury.
● Do not disable fuse functions or bridge fuse
terminals with wire, metal clips, solder, or similar
object.










