General timing, Charts, 9General | HP M1536dnf CE538ABGJ guide

104 Chapter 2 Solve problems

Timing chart two consecutive prints on LTR paper

Power switch ON

Operation

WAIT

STBY

INTR

PRINT

LSTR

STBY

1TOP sensor (PS751)

2 Fuser delivery sensor (PS701)

3 Print start command (EEC12)

4 Scanner Motor (M2)

5 Laser Diode

6 BD Output signal (BDO)

7 Main Motor (M1)

8 Primary Charging Bias

9Developing Bias

10Transfer Charging Bias

11Fuser Heater

12 Pickup solenoid (SL1)

13

14

15

16

17

18

19

20

Figure 2	General timing
-9General	charts
timing diagram

ENWW

Image 124

HP M1536dnf CE538ABGJ manual General timing, Charts, 9General, Timing diagram

Contents

Laserjet PRO M1530 Page HP LaserJet Pro M1530 MFP Series Copyright and License Trademark Credits Conventions used in this guide Iv Conventions used in this guide Table of contents Remove the upper cover Vii 143 160 177 193 221229 231 247 List of tables Xiv List of figures 42 Remove the laser scanner assembly 1 89 Remove the engine controller PCA 1 123 Remove the document feeder cover 3 Removal and replacement Removal and replacement strategy Introduction Service approach Before performing serviceElectrostatic discharge Required tools After performing service Post-service testParts removal order Print-quality test 2Parts removal order Scanner and document feeder 3Parts removal order Product base Removal and replacement procedures Print cartridge Pickup roller Separation pad Covers Transfer rollerMain tray Output bin extension 11Remove the output bin extension Before proceeding, remove the following components Left coverRemove the left cover 15Remove the left cover 4 Enww Scanner assembly Remove the scanner assembly 20Remove the scanner assembly 4 Removal and replacement Scanner hinges 23Remove the scanner hinges 2 Removal and replacement Right cover Remove the right cover Enww 28Remove the right cover 5 29Remove the duplex door Removal and replacement Duplex door Duplex frame Remove the duplex frame Cartridge door Remove the cartridge door 34Remove the cartridge door 3 Enww Front cover Remove the front cover Upper cover Remove the upper cover Formatter PCA Main assembliesRemove the formatter PCA 40Remove the formatter PCA 2 Removal and replacement Fax PCA Remove the fax PCA Laser scanner assembly Remove the laser scanner assembly Enww Enww Reinstall the laser scanner assembly 47Reinstall the laser scanner assembly Pickup assembly Remove the pickup assembly 50Remove the pickup assembly 3 52Remove the pickup assembly 5 Removal and replacement Enww Enww Reinstall the pickup assembly Enww Fuser Remove the fuser 63Remove the fuser 3 Removal and replacement 65Remove the fuser 5 Enww Enww Reinstall the fuser Main motor Remove the main motor Enww 76Remove the main motor 5 Enww Enww Reinstall the main motor drive belt 81Main motor drive belt installed correctly Pickup solenoid Remove the pickup solenoid 85Remove the pickup solenoid 3 Removal and replacement Enww Enww Engine controller PCA Remove the engine controller PCA 91Remove the engine controller PCA 3 Removal and replacement 93Remove the engine controller PCA 5 Enww 97Remove the engine controller PCA 9 Reinstall the engine controller PCA 101Reinstall the engine controller PCA 4 Enww Duplex reverse solenoid Remove the duplex reverse solenoid Enww Enww Main fan Remove the main fan 110Remove the main fan 3 Enww Reinstall the main fan 113Reinstall the main fan Duplex connector PCA Remove the duplex connector PCA 116Remove the duplex connector PCA 3 Enww Scanner components Document feeder input tray Document feeder cover Enww Document feeder pick arm assembly Remove the document feeder pick arm assembly 127Remove the document feeder pick arm assembly 4 Document feeder core assembly Remove the document feeder core assembly Remove one FFC using the blue tab callout Post scan pinch rollers Remove the post scan pinch rollers Document feeder base assembly Remove the document feeder base assembly Enww Document feeder floating hinges Remove the document feeder floating hinges Control panel Solve problems Problem-solving checklist Check that the product power is onCheck the control panel for error messages Test print functionality Test copy functionality Test the fax sending functionalityTest the fax receiving functionality Try sending a print job from a computer Menu map Determine the problem source Troubleshooting processGeneral topic Questions Power subsystem Power-on checks Tools for troubleshooting Individual component diagnosticsEngine diagnostics Engine test button Perform an engine test Drum rotation functional check Components testsHalf self-test functional check Plug/jack locations DiagramsDescription Location of connectors 3Engine controller PCA connectors 4Formatter and fax board connectors Locations of major components 5Main assemblies 6Rollers, solenoids, and fan 7PCA locations Cross-sectional view Charts Timing diagramGeneral timing 9General General circuit diagram Circuit diagram HP ToolboxFX View HP ToolboxFXStatus Event log Fax tasks FaxFax phone book Enww Help Fax send logFax receive log Block Faxes System Settings Device information Print quality Paper handlingPaper types Print Settings System setupService Device polling PCL 5e Network SettingsPostScript Configuration Print a cleaningInternal print quality test pages Print quality troubleshooting tools Setup menuControl panel menus Repetitive defect ruler Quick Forms menu Reports menu Fax Setup Enww System Setup menu This menu item appears only when the private-receiveFeature is turned on Confirm Fax # Off Cancel Volume Settings Alarm Volume SoftRing Volume Medium Key-Press Volume Loud Phoneline Volume Off Time/Date Service menu Network Setup menu Function-specific menusNext field Confirmation before moving to the next one. After all three Copy Feature Fax Enww Control panel message types Interpret control panel messagesControl panel messages Scanner Error Fuser ErrorTurn off then on Fan Error ADF door is open Comm. Error Canceled faxDoc. feeder jam Document feeder door is open Canceled send Engine comm. ErrorFax is busy Redial Pending Canceling recvFax memory full Fax recv. error Fax Send error Jam in location Open door and clear jam Jam in cartridge area Jam in output bin Jam in tray Jam in print paper pathLoad tray 1 TYPE, Size Cleaning Page OK to start Manual duplex Service menu. In the Fax Service menuFax Setup menu. In the Advanced Setup Press OK Hardware error No dial tone No fax answer No fax detected No paper pickup Resend Upgrade Print failureRemove shipping lock from cartridge Remove shipping material from duplex Sensor Error Settings cleared Used cartridge is installed Unexpected size in tray Paper feeds incorrectly or becomes jammed Product does not pick up paperProduct picks up multiple sheets of paper Prevent paper jams Clear jams Jam locations Clear jams from the document feeder Clear jams from the input trays Enww Clear jams from inside the product Enww Clear jams from the output areas Clear jams from the duplexer Enww Enww Improve print quality Use paper that meets HP specificationsSelect a paper type Type of print cartridge Steps to resolve the problem Print a cleaningCheck the print cartridge Print the Supplies Status Inspect the print cartridge for damage Repeating defects Use the printer driver that best meets your printing needs Improve print quality for copiesHP PCL 6 driver HP UPD PS driver Enww Clean the product Clean the pickup roller Clean the document feeder pickup rollers and separation pad Clean the paper path Clean the scanner glass strip and platenClean the paper path from HP ToolboxFX Clean the paper path from the control panel Enww Product does not print Product does not print or it prints slowlyProduct prints slowly Product does not print or it prints slowly Solve connectivity problems Solve direct-connect problemsSolve network problems Computer is using the incorrect IP address for the product Computer or workstation might be set up incorrectly Computer is unable to communicate with the product Service mode functions Secondary service menuOpen the secondary service menu Secondary service menu structure Product resets Solve fax problemsFax troubleshooting checklist Enww Troubleshoot fax codes and trace reports View and interpret fax error codesCode number Description View the fax trace report Print all fax reports Fax logs and reportsPrint individual fax reports Set the fax error report Set the fax activity log to print automatically Set the fax confirmation report Set the fax-error-correction mode Change error correction and fax speedChange the fax speed An error message displays on the control panel Solve problems sending faxesComm. Error message appears No dial tone Fax is busy message appears Document feeder paper jam No fax answer message appearsFax memory full message appears Scanner error Faxes can be received, but not sent Unable to use speed dials Unable to use fax functions from the control panelUnable to use group dials Enww Solve problems receiving faxes Fax does not respondFax has a dedicated phone line An answering machine is connected to the product Telephone handset is connected to the product Answer Mode setting is set to the Manual settingVoice mail is available on the fax line Product uses a fax over IP or VoIP phone service Product is connected to a DSL phone serviceNo fax detected message appears Comm. Error message appears Receive to PC feature is enabled Private Receive feature is onFax is received but does not print Sender receives a busy signal No dial toneCannot send or receive a fax on a PBX line Handset is connected to the product Solve general fax problems Faxes are sending slowly Fax quality is poor Fax cuts off or prints on two pages Product updates Enww Parts and diagrams Order parts by authorized service providers Order replacement partsWhole unit replacement part numbers Related documentation and software Customer self repair parts How to use the parts lists and diagramsService parts Assembly locations Locations of major components 2Rollers, solenoids, and fan 3PCA locations 9Cross-sectional view Covers 5Print engine covers 10Print engine covers Internal assemblies Internal assemblies 1 Internal assemblies Internal assemblies 2 7Internal assemblies 2 12Internal assemblies 2 Internal assemblies 3 8Internal assemblies 3 13Internal assemblies 3 9Internal assemblies 4 Parts and diagrams Internal assemblies 4 14Internal assemblies 4 Scanner and document feeder ADF main assemblies Scanner and document feeder ADF main assemblies 11Document feeder assembly parts Parts and diagrams Document feeder internal components Document feeder internal components Alphabetical parts list 17Alphabetical parts list Alphabetical parts list Paper pickup assembly RM1-7575-000CN Numerical parts list 18Numerical parts list Q7400-00011 Spring, document feeder ADF extension pre-pick RM1-7542-000CN Fuser film assembly, 220 volt Enww Service and support Hewlett-Packard limited warranty statement Page Data stored on the print cartridge End User License Agreement Transfer Enww Customer support Repack the product Product specifications Physical specifications Power consumptionAcoustic specifications Environmental specifications Regulatory information FCC regulations Environmental product stewardship program Return and recycling instructions United States and Puerto Rico Material restrictions PaperNon-U.S. returns Enww Declaration of conformity Supplementary Information March Boise, Idaho USAFor regulatory topics only Certificate of Volatility Volatility Safety statements Laser safetyVcci statement Japan Power cord instructions Power cord statement Japan EMC statement Korea Laser statement for Finland GS statement Germany Enww Additional statements for telecom fax products EU Statement for Telecom OperationNew Zealand Telecom Statements Additional FCC statement for telecom products US Telephone Consumer Protection Act US Industry Canada CS-03 requirements Enww Enww Symbols/Numerics Index Macintosh JamsNetwork Enww Enww Page CE538-90986* *CE538-90986