1
P10503 Xerographic Test Fixture
Xerographic Test Fixture User Manual
P10503 Table Of Contents
Engineering Specifications …………………………………………………………………………….. 3
User Interface ……………………………………………………………………………………………5
Initialization File Formatting ……………………………………………………………………………7
Fixture Maintenance …………………………………………………………………………………….8
High Voltage Power Supply Settings ……………………………………………………………………9
Wiring Diagrams ……………………………………………………………………………………….10
P10503 Engineering Specifications for Test Fixture
Red quantities are recommended for good resultsSome recommended ranges reference other parameters using brackets
Subsystem / Parameter / Units / Controllable? / Recommended Range
Charging / Photoreceptor Velocity / mm/s / Y / 80-120 (110)
Charging / Coronode Current / μA / Y / -1800 (-1800)
Charging / Grid Voltage / V / Y / >=-650 (-800)
Charging / Spacing / mm / Y / 1-2
Charging / Stray Light / erg / Y / Minimize
Charging / Temperature / °F / N
Charging / Humidity / %RH / N
Charging / Photoreceptor Thickness / μm / N / 25
Charging / Initial Photoreceptor voltage / V / N / -50
Charging / Final Voltage / V / Y / ~=[6]
Charging / Ozone/Nox Generation / g or ml / N / Minimize
Subsystem / Parameter / Units / Controllable? / Recommended Range
Exposure / Lamp Intensity / erg / Y / 1-2
Exposure / Exposure time*** / s / Y / dependent on [2] (2s if [2] is set to 29 ohms)
Exposure / Spacing / mm / Y / <0.5
Exposure / Stray Light / erg / Y / Minimize
Exposure / Charged Voltage / V / Y / ~=[13]
Exposure / External resistance (10W resistors) / ohm / Y / greater than or equal to 29 ohms
Exposure / Temperature / °F / N
Exposure / Humidity / %RH / N
Exposure / Photoreceptor Thickness / μm / N
Exposure / Exposed Voltage / V / Y / -50 to -150
Subsystem / Parameter / Units / Controllable? / Recommended Range
Development / Bias / V / Y / -700 (-700)
Development / AC Voltage / kV / Y / 1
Development / Mass on roll / mg/cm2 / Y / 30
Development / Roller speed / mm/s / Y / 300 (300)
Development / Spacing / μm / N / 300
Development / Stray Light / erg / Y / Minimize
Development / Photoreceptor Velocity / mm/s / Y / 60 (60)
Development / Exposed Voltage / V / Y / -50 to -150
Development / Toner Concentration / % / N / 5
Development / Temperature / °F / N
Development / Humidity / %RH / N
Development / Developed Mass / mg/cm2 / Y / 0.5
Development / Dirt/Dust / mg/cm2 / N
Subsystem / Parameter / Units / Controllable? / Recommended Range
Pre-Transfer Erase / Lamp Intensity / erg / Y / 4-5
Pre-Transfer Erase / Spacing / mm / Y / 25
Pre-Transfer Erase / Charged Voltage / V / Y / -650
Pre-Transfer Erase / Photoreceptor Velocity / mm/s / Y / 110 (110)
Pre-Transfer Erase / Temperature / °F / N
Pre-Transfer Erase / Humidity / %RH / N
Pre-Transfer Erase / Erased Voltage / V / Y / -50
Subsystem / Parameter / Units / Controllable? / Recommended Range
Transfer / Intermediate Roll Bias / V / Y / =-[25] (-[25])
Transfer / Photoreceptor Velocity / mm/s / Y / 110 (110)
Transfer / Intermediate Roll Velocity (transfer from PR) / mm/s / Y / 110 (110)
Transfer / Intermediate Roll Lifting Pressure / psi / Y / Maximize
Transfer / Developed Mass / mg/cm2 / Y / 0.5
Transfer / Transfer Roll Bias (transfer to paper) / V / Y / -3000 (-3000)
Transfer / Transfer Roll Velocity / mm/s / Y / 65 (65)
Transfer / Transfer Roll Normal Force / g/mm / Y / 700
Transfer / Paper Feed Velocity / mm/s / Y / 65
Transfer / Transferred Mass on Interm. Roll / mg/cm2 / Y / 0.45
Transfer / Toner Tribo / μC/g / N
Transfer / Temperature / °F / N
Transfer / Humidity / %RH / N
Transfer / Transferred Mass / mg/cm2 / Y / 0.45
Transfer / Residual Toner on Transfer Roll / mg / N
***Note for exposure time: At [20] = 29 ohms, the LEDs need 2 seconds to light up
P10503 User Interface Guide
1- Test Run Settings
A test run always starts from the charging station regardless of this setting, and to ensure this a test run is always preceded by RESETing the fixture. The “Test Run End State” dropdown signifies to which station the photoreceptor carriage will travel to and end at.
2- Operation Panel
These buttons labelled START, STOP, and RESET are simply named for their obvious functions. Remember that a RESET has to be performed after any test run in order to do another test run. START would then be used to initiate a test run, and STOP halts the test and the carriage. This is not the same as using the emergency stop switches located on the physical test fixture.
3- Station Settings
These boolean switches are used to determine how the test run will behave by enabling or disabling specific functions. Turning on/off the flip switch with the green LED will immediately activate or turn off the corresponding function regardless of whether or not a test run is happening at the time. The check boxes either turn on or turn off the corresponding function during the test run only.
4- Test Settings Input Dialog
This allows you to select a premade plain text (.ini) file specifically formatted with data in order to automate changing of various controls and settings for a specific test. If no .ini file is selected by the user, the file called “default.ini” will automatically be parsed and used for following test runs.
5- Data Output Dialog
This allows you to save collected data from a test run in Excel (.csv) format. File is saved to the directory specified. Data acquisition will be paused after each test run in order to allow the user to have time to save relevant output.
6- System Inputs Panel
This panel shows all of the available controls that can be changed for each substation. As always, you are only allowed to change parameters within safety limits. Switch between the tabs to select which one you wish to view.
7- System Outputs Pane
This panel shows time plots for each substation as well as photoreceptor velocity and carriage velocity. Switch between the tabs to select which one you wish to view.
P10503 Initialization File Formatting
Proper format of an .ini file for initialization is as follows:
[Charging Station Parameters]
PC Velocity Across Coronode (mm/s)=
Coronode Current (uA)=
Grid Bias (v)=
[Exposure Station Parameters]
Expose Time (s)=
LED Resistance (ohms)=
[Developer Station Parameters]
PC Velocity Across Developer (mm/s)=
Developer Roller Velocity (mm/s)=
Toner Bias (v)=
[Pre-Transfer Station Parameters]
PC Velocity Across Pre-Transfer LEDs (mm/s)=
[Transfer Station Parameters]
PC Velocity Across Transfer Drum (mm/s)=
Number of Transfer Drum Rotations=2
Transfer Drum Velocity (Transfer to Drum) (mm/s)=
Transfer Drum Velocity (Transfer to Paper) (mm/s)=
Transfer Bias (Transfer to Drum) (v)=
Transfer Bias (Transfer to Paper) (v)=
A sample .ini file:
[Charging Station Parameters]
PC Velocity Across Coronode (mm/s)=110
Coronode Current (uA)=-1800
Grid Bias (v)=-800
[Exposure Station Parameters]
Expose Time (s)=12
LED Resistance (ohms)=29
[Developer Station Parameters]
PC Velocity Across Developer (mm/s)=60
Developer Roller Velocity (mm/s)=270
Toner Bias (v)=-700
[Pre-Transfer Station Parameters]
PC Velocity Across Pre-Transfer LEDs (mm/s)=110
[Transfer Station Parameters]
PC Velocity Across Transfer Drum (mm/s)=110
Number of Transfer Drum Rotations=2
Transfer Drum Velocity (Transfer to Drum) (mm/s)=110
Transfer Drum Velocity (Transfer to Paper) (mm/s)=77
Transfer Bias (Transfer to Drum) (v)=700
Transfer Bias (Transfer to Paper) (v)=-3000
P10503 Fixture Maintenance Guide
Confirmation Checks before running fixture
- Carriage must be reset through the user interface.
- Both carriage door and observation door on the dark enclosure are closed.
- Ensure desired settings are configured either through the interface or through loading a correctly formatted .ini file.
- Ensure that shop air was powered on before use.
- Ensure that photoreceptor is attached to carriage with double-sided tape and is flat
- Ensure that photoreceptor is grounded with the alligator clip
Maintenance Process after running Fixture
- Clean off transfer drum rollers if excess toner remains on them with a towel.
- Use RESET button on user interface in order to send carriage back into the dark enclosure.
* Ensure that photoreceptor is not outside of enclosure for more than 20 minutes or ability to charge and expose with that specific photoreceptor will be drastically reduced or eliminated. - Close both flaps of the dark enclosure's carriage door.
P10503 – High Voltage Power Supplies Configuration Settings
The xerographic printer utilizes four power supplies. For general use, settings for these devices should only be changed through the LabView interface. The default settings are as follows (as situated on the physical devices themselves):
610C:
Set to amplify
Set to remote
Maximum compliance knob set to highest (10)
Microamp setting knob set to 0
Polarity set to off
Function switch set to I for corona power supply, V for other power supplies
Use IT whenever possible as a setting
Use ranges of 0-2000 microamps for corona, 0-1kV for grid, and 0-1kV for toner
On the reader portion of the power supplies (far left side), set settings to the same as the rest of the power supplies (I for corona, V for rest)
615-3:
To ensure LabView integration, push in terminal plug and set it to on
Set DC to on, and AC to off
Waveform settings are irrelevant since AC will not be used
Set CV to 0 and polarity set to +
AC settings are irrelevant but to be safe set them all to zero
Set constant voltage setting to on
Set compliance knob to 5kV
Set DC reader setting to kV's
Set to amplify instead of generate
P10503 Wiring Diagrams
Exposure Station LED Circuit that changes brightness of Exposure Light