PM-836D and PM-836P Installation Guide

This website will provide software and information on setting up a Postmark PM-836D or PM-836P print engine. 



Initial Setup

After mounting your PM-836 to your transport system there are a few connections that need to be made prior to turning on the system.

 

Encoder
TOF Sensor
Waste Ink
Computer Connections
Turning on the System

 
Click any of the above links to scroll to that section

Encoder

  Figure 1:   1800 pulse per revolution encoder with a 6" circumference wheel

Figure 1: 1800 pulse per revolution encoder with a 6" circumference wheel

The encoder provides the speed of the transport belt to the printer to ensure accurate registration and stitching. The PM-836 requires a 300PPI input. All postmark provided encoders use an 1800 pulse per revolution encoder with a 6" circumference wheel (Figure 1). The input connector for the encoder is an M12 Circular connector (Figure 2). After securely mounting the encoder using the included instructions, connect the M12 cable from the encoder to the back side of the Ink Tank Assembly Box (Figure 3).

  Figure 2:   M12 connector on the end of the encoder cable

Figure 2: M12 connector on the end of the encoder cable

  Figure 3: Connection point for encoder on back side of Ink Tank Box

Figure 3: Connection point for encoder on back side of Ink Tank Box

Photo Sensor (TOF - Top of Form Sensor) 

  Figure 4: Contrast TOF sensor

Figure 4: Contrast TOF sensor

The Photo Sensor (also referred to as TOF sensor) identifies the leading edge of the substrate being printed on. Different substrates and transport assemblies may require different types of TOF sensors. The postmark provided sensor is a contrast sensor which can be used with a retroreflective target or on a solid belt (Figure 4). The input connector on the Ink Tank Assembly Box for the sensor is a 4pin M8 circular connector. This connection is common for most industrial sensors. 

The included mounting hardware for the sensor can be used for standard 22mm sensor mounts as well as a variety of fiber optic cable sensors for specific applications. 

To install the sensor, loosen the orange handle and slide the sensor mount onto the 12mm shaft (Figure 5).

Center the sensor where media will be fed and lock the sensor in position (Figure 6).

  Figure 5:   Loosen the orange handle and slide the sensor mount onto the 12mm Shaft

Figure 5: Loosen the orange handle and slide the sensor mount onto the 12mm Shaft

  Figure 6:   Center the sensor where media will be fed and lock the sensor in position

Figure 6: Center the sensor where media will be fed and lock the sensor in position

 

After the sensor has been mounted, connect the M8 connector from the sensor's yellow cord (Figure 7) to the back of the ink tank box next to the encoder input (Figure 8).

  Figure 7:   M8 Plug at the end of the yellow cable that connects to the sensor

Figure 7: M8 Plug at the end of the yellow cable that connects to the sensor

  Figure 8: Plug location on Ink Tank box for Sensor input

Figure 8: Plug location on Ink Tank box for Sensor input

Waste Lines 

The PM-836 requires an exit path for any waste ink which is used for cleaning and draining the printhead (Figure 9A) .

The default configuration for the PM-836 is to divert the waste ink to a receptacle bottle (Figure 9B).

The waste ink is routed using a length of 2mm ID tubing.

The location of the waste ink receptacle bottle is not critical, but be sure the bottle is open to atmospheric pressure or the bottle will pressurize.

  Figure 9: Waste Ink Receptacle route    A: Waste Ink Bulkhead connector    B: Waste Ink Receptacle Bottle

Figure 9: Waste Ink Receptacle route

A: Waste Ink Bulkhead connector

B: Waste Ink Receptacle Bottle

Computer Connections

In order for a computer to communicate with the PM-836, a USB and a serial RS-232 connection are required. Postmark includes a 6ft USB A to B Cable which installs on the back side of the Ink Tank Assembly Box near the encoder and photocell input.

1. USB

USB is the main connection that drives the printhead. All print data, service instructions, and settings are sent via USB. The USB connection port is shown in Figure 10. 

The maintenance utility will only communicate over USB. 

 

2. RS-232

RS-232 provides the necessary "start print" and "stop print" commands required by the printhead to print. These communications are handled either by the Xitron software or by an external controller. Without the RS-232 communication, the printer will never start printing although it may show the status as "printing". 

Postmark includes a USB to RS-232 adapter (Figure 11) which allows this communication to be sent via an emulated serial port in windows. 

Drivers for the USB to Serial converter and information on serial protocol can be downloaded here:

USB to RS-232 driver

Detailed information on Serial Protocol for PM-836

  Figure 10  :  USB connection on Ink Tank Assembly Box

Figure 10 : USB connection on Ink Tank Assembly Box

  Figure 11:   Serial commuincation port with USB to RS-232 adapter

Figure 11: Serial commuincation port with USB to RS-232 adapter

  Figure 12: Ink Cartridges in Ink Tank Holder

Figure 12: Ink Cartridges in Ink Tank Holder

Starting the printer for the first time

Once all the connections have been made it is time to install the ink cartridges and turn on the system. Ensure that you have a receptacle and tubing installed for any waste ink before turning on the system. 


Install the ink cartridges in their corresponding ink tank holder and close the blue latches (Figure 12).

The printer should start loading ink automatically as long as everything is connected correctly and there are no errors. It is recommended to watch the printer status during this process by opening the maintenance utility. 

Using the Maintenance Utility

Download the maintenance utility .zip file from the link below and extract the contents to a known location:

PM-836 Maintenance Utility

A 64 bit operating system is recommended for most applications including use of the Maestro / Xitron software. The 64 bit version of the maintenance utility can be found in the 64 bit folder included in the above link. 

The maintenance utility is a self sufficient program and does not require an installer. You will just need to open the correct version based on your operating system. 

With the printer turned on and connected, run the maintenance utility 4PM2_MaintenceUtilityEn.exe

A window will come up prompting a mode to be selected (Figure 13). 

  Figure 13: Maintenance Utility mode selection    

Figure 13: Maintenance Utility mode selection

 

For most applications, key operator mode is sufficient. 

For advanced servicing and troubleshooting, Administrator Mode can be used by inputting the password: printmodule

For the initial setup run the maintenance utility in "key operator mode".


Next a window will come up asking which connection the printer is using (Figure 14), in most cases this will be via USB. The maintenance utility can be ran in offline mode for training or remote servicing aid. 

  Figure 14:  Connection port selection    

Figure 14:  Connection port selection

 

The maintenance utility will now be ready to use given the printer is working correctly. The following manual can be referenced for details on the functionality of the maintenance utility:

PM-836 Service Manual

As the printer is loading ink, press the printer status button in the maintenance utility to monitor the status (Figure 15).

  Figure 15: Printer Status button in the maintenance utility window

Figure 15: Printer Status button in the maintenance utility window

 

The ink loading process usually takes about 30 minutes. If any error codes arise during this process consult the service manual for more details. If ink does not start loading it is possible there is an error preventing the printer from starting, which will be shown in the printer status window. Again, consult the service manual if this happens. 

Once the ink has finished loading the status of the printer should show online / ready (Figure 16):

  Figure 16: Printer Status - Online / Ready

Figure 16: Printer Status - Online / Ready

At this point setup has been completed and you are ready to install the xitron software as explained here:

Xitron Software Installation Guide

Please note that a sample print from the Xitron software must be made before you are able to print test patterns and calibrations from the maintenance utility, doing so initializes the RS-232 serial communication. The Xitron software handles the RS-232 communication and must be open (unless you are using an external controller).