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Make/Model Information:

  • Brand:   Hewlett-packard
  • Models included:
    • HP Color LaserJet CM-1312MFP

File Information:

  • Type:   Factory Service Manual (FSM)
  • Language:   English
  • Number of pages:   334
  • File size:  ∼ 17.27  MB
  • File Format:   PDF only
  • SME Watermarks:   None
  • Password lock:   No
  • Edit/copy/modify:   Yes
  • SKU:   BMHP-1018

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HP Color LaserJet CM1312 MFP Series
Service Manual
Table of contents
1 Product basics
Quick access to product information
Product comparison
Product features
Product walkaround
Base model front view
Base model back view
Fax/memory-card model front view
Fax/memory-card model back view
Interface ports
Supported operating systems
Supported operating systems for Windows
Supported operating systems for Macintosh
Supported product software
Software included with the product
Software for Windows
HP Web Jetadmin
Embedded Web server
HP ToolboxFX
Software for Macintosh
Embedded Web server
Supported printer drivers
Supported printer drivers for Windows
HP Universal Print Driver (UPD)
UPD installation modes
Supported printer drivers for Macintosh
Software for other operating systems
System requirements
Supported network protocols (network models only)
2 Control panel
Control-panel walkaround
Base models control panel
ENWW iii
Fax/memory-card models control panel
Control-panel menus
Use the control-panel menus
Control-panel Setup menu
Function-specific menus (fax/memory-card models only)
3 Paper and print media
Supported paper and print media
Supported paper types and tray capacity
Load paper and print media
Load Tray 1
Load originals for copying, scanning, or faxing
Configure tray
4 Manage and maintain the product
Information pages
HP ToolboxFX
View the HP ToolboxFX
Event log
Set up status alerts
Set up e-mail alerts
Product information
Fax Receive
Fax phone book
Fax send log
Fax receive log
Junk Faxes
System Settings
Device Information
Paper Handling
Print Quality
Print Density
Paper Types
System setup
Device polling
Print Settings
Network Settings
Embedded Web server
Use HP Web Jetadmin software
Security features
Turn on password protection using the embedded Web server
Turn on password protection from the control panel
Turn on private receive feature
Manage supplies
Check and order supplies
Check supplies status by using the control panel
Check supplies status by using HP ToolboxFX
Store supplies
HP policy on non-HP supplies
HP fraud hotline
Recycle supplies
Replace supplies
Print cartridge
Clean the product
Clean the paper path
Clean the paper path from HP ToolboxFX
Clean the paper path from the product control panel
Clean the automatic document feeder (ADF) pickup roller assembly
Clean the lid backing
Clean the scanner glass
Clean the exterior
Firmware updates
Recover from a corrupted firmware download
5 Theory of operation
Basic operation
Major product systems
Product components
Sequence of operation
Engine control system
DC controller
Low-voltage power supply
Fuser failure detection
High-voltage power supply
Laser/scanner system
Laser failure detection
Image-formation system
Image-formation process
Latent-image formation stage
Step 1: primary charging
Step 2: laser-beam exposure
Developing stage
Step 3: development
Transfer stage
Step 4: primary transfer
Step 5: secondary transfer
Step 6: separation from the drum
Fusing stage
Step 7: fusing
ITB cleaning stage
Step 8: ITB cleaning
Drum cleaning stage
Step 9: drum cleaning
Developing roller engagement/disengagement control
Pickup-and-feed system
Jam detection
Pad transfer
Multiple-feed prevention
Scanner system (base models)
Scanner power-on sequence of events
Copy or scan-to-computer sequence of events
Scanner and ADF functions and operation (fax/memory-card models)
Scanner functions
Scanner operation
ADF operation
ADF paper path and ADF sensors
ADF jam detection
Memory card system (fax/memory-card models only)
Fax functions and operation (fax/memory-card models only)
Computer and network security features
PSTN operation
Receive faxes when you hear fax tones
Distinctive ring function
Fax by using Voice over IP services
The fax subsystem
Fax card in the fax subsystem
Safety isolation
Safety-protection circuitry
Data path
Hook state
Downstream device detection
Hook switch control
Ring detect
Line current control
Billing- (metering-) tone filters
Fax page storage in flash memory
Stored fax pages
Advantages of flash memory storage
6 Removal and replacement
Removal and replacement strategy
General cautions during removal and replacement
Electrostatic discharge
Required tools
Types of screws
Service approach
Before performing service
After performing service
Post-service tests
Test 1 (print-quality test)
Test 2 (copy-quality test)
Test 3 (fax-quality test)
Parts removal order
Print cartridges
Control-panel overlay (base model)
Control panel (base model)
Control-panel bezel (fax/memory-card models)
Control panel (fax/memory-card models)
Reinstall the control panel (fax/memory-card models)
Paper-feed assemblies
Pickup roller (product base)
ADF pickup roller assembly
Separation roller (product base)
Transfer roller
Paper-guide assembly
External panels, covers, and doors
Front door and front-lower cover
Right cover
Left cover
Front-right cover
Reinstall the front-right cover
Memory-card reader PCA (fax/memory-card models only)
Card cover or blanking cover
Rear-side cover
ENWW vii
Rear-upper cover
Rear door and rear-lower cover
Scanner assembly
Top cover
Internal assemblies
Print-cartridge drawer
Main motor
Speaker (fax/memory-card models only)
Intermediate transfer belt (ITB)
Reinstall the ITB
DC controller PCA
Special considerations
Remove the DC controller PCA
Formatter and fax card PCAs
Special considerations
Remove the formatter PCA
Fuser motor
Power supply (high-voltage)
Power supply (low voltage)
Reinstall the power supply (low voltage)
Power supply (fuser)
7 Problem solve
Menu map
Troubleshooting process
Pre-troubleshooting checklist
Power-on checks
Troubleshooting tools
LED diagnostics
Network LEDs (network models only)
Control panel LEDs
Memory card LED (fax/memory-card models only)
Control-panel diagnostics
Block diagrams
Scanner and automatic document feeder (ADF) assemblies
Major components
Solenoid, sensors, and motors
Interface ports
DC controller PCA
viii ENWW
Timing diagram
Circuit diagram
Print-quality troubleshooting tools
Repetitive image defects
Calibrate the product
Internal print quality test pages
Cleaning page
Service page
Diagnostics pages
HP ToolboxFX software
Control-panel messages
Event-log messages
Paper-handling problems
Recover jams
Common causes of jams
Clear jams
Where to look for jams
Clear jams from the input-tray areas
Clear jams from the output-bin
Clear jams from the ADF (fax/memory-card models only)
Solve image quality problems
General image quality problems
Solve issues with color documents
Copy problems
Prevent copy problems
Image problems
Media-handling problems
Performance problems
Scan problems
Solve scanned-image problems
Scan-quality problems
Prevent scan-quality problems
Solve scan-quality problems
Solve performance problems
Solve connectivity problems
Solve direct-connection problems
Solve network problems (network models only)
Service mode functions
Service menu
Service menu settings
Secondary service menu
Open the secondary service menu
Secondary service menu structure
Product resets
Restore the factory-set defaults
NVRAM initialization
Solve fax problems (fax/memory-card models only)
Fax logs and reports
Print all fax reports
Print individual fax reports
Set the fax activity log to print automatically
Set the fax error report
Set the fax confirmation report
Include the first page of each fax on the fax confirmation, fax error, and last
call reports
Perform a fax test
Change error correction and fax speed
Set the fax-error-correction mode
Change the fax speed
Problems sending faxes
Problems receiving faxes
Performance problems
Memory card problems (fax/memory-card models only)
Missing or wrong files
Index page not printing
Proof sheet not printing
Proof sheet not scanning
Issues with photo printing
8 Parts and diagrams
Order parts, accessories, and supplies
Supplies part numbers
Whole unit replacement
How to use the parts lists and diagrams
Scanner assembly
Product base assembly locations
Internal assemblies
Alphabetical parts list
Numerical parts list
Appendix A Service and support
Hewlett-Packard limited warranty statement
Customer self repair warranty service
Print cartridge limited warranty statement
Customer support
Repack the product
Appendix B Specifications
Physical specifications
Electrical specifications
Power consumption
Environmental specifications
Acoustic emissions
Skew specifications
Appendix C Regulatory information
FCC regulations
Additional statements for telecom (fax) products
EU statement for telecom operation
New Zealand telecom statements
Telephone Consumer Protection Act (United States)
IC CS-03 requirements
Declarations of conformity
HP Color LaserJet CM1312
HP Color LaserJet CM1312nfi
Certificate of volatility
Country/region specific statements
Laser safety
Canadian DOC regulations
EMI statement (Korea)
Laser statement for Finland
Substances table (China)
7 Problem solve
To use the information in this chapter, you should have a basic understanding of the HP LaserJet printing
process. Explanations of each mechanical assembly, the printer systems, and the basic theory of
operation are contained in
Theory of operation on page 73. Do not perform any of these troubleshooting
processes unless you understand the function of each product component.
Menu map
Troubleshooting process
Troubleshooting tools
Control-panel messages
Event-log messages
Paper-handling problems
Solve image quality problems
Solve performance problems
Solve connectivity problems
Service mode functions
Solve fax problems (fax/memory-card models only)
Memory card problems (fax/memory-card models only)
ENWW 187


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