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HP Designjet T / T ePrinter Series. Service Manual.
- DESIGNJET T/T eprinter Series. Service Manual - PDF Free Download
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Error: Javascript is disabled in this browser. This page requires Javascript. Modify your browser's settings to allow Javascript to execute. See your browser's documentation for specific instructions. Left-hand assemblies. Assembly on page Ink Cartridge Co ver Sensor kit.
ENWW Left-hand assemblies Carriage assembly. CQ Carriage Assembly with Belt. CQ Belt Carriage Belt on page CQ Encoder St rip Encoder Strip on page Includes gloves. CQ Trailing Cable Trailing Cable on page Carriage Line Sensor kit. ENWW Carriage assembly Paper path front. CQ Starwheel Assembly CQ Out put Tray Pro.
Output Tray on page CQ Output Tray Basic. Both the encoder and motor-drive system are managed by the Bundle PCA located on the right-hand side of the printer. This system moves the Carriage from left to right and right to left of the printer on top of the paper in a controlled manner to perform printing, cutting, paper detection, and any other Carriage movements for servicing and final capping process.
The system comprises the Carriage sliding on the scan axis rod, on which rotates and whose position is determined by a cam mounted on the Carriage, which slides touching the bottom surface of the anti-rotation rail. There are two trailing cables mounted one on top of the other, which connect the Carriage with the main electronics control board.
A scan-axis encoder strip is needed for the Carriage to determine its position, and a Carriage Motor which impels the Carriage via a belt. The trailing cable is held in position by a plastic holder, which clips onto the scan axis structure. A springloaded loop ensures follow-up action of the cables with the Carriage movement.
Two plastic cable sliders are also placed to ensure minimum contact of the trailing cables with the scan axis structure. The plastic sliders are greased to prevent ink spray aerosol deposits from accumulating on them, generating a sticky surface which could retain the cables and then be damaged by Carriage movement. The Encoder Strip Sensor is located inside the Carriage, once the Carriage is assembled the Encoder Strip crosses the Carriage, passing by the detection area of the sensor inside the Carriage.
The main function of the Carriage is to hold the printhead in position, to enable cartridge insertion, and to move the printhead in a controlled manner in order to print. The Carriage holds all the necessary interface electronics for the main board to interact with the printhead via the trailing cables. A set of spring-loaded connectors are the main interface Carriage-printhead. This is particularly important when replacing the printhead, as the removal of the old printhead extraction with a rotary movement can cause the nozzle plate to touch those contacts and create contamination that could cause problems with the new printhead.
However, manual cleaning of the contacts is not recommended. Transmits the pressure from the Prime Pump via off-axis coupling to each of the four cartridges. The cutter bridge impels the Cutter for cutter operations see additional information in the cutter section. Holds the Carriage Line Sensor. The Carriage Line Sensor also known as the ZIM Sensor is located on the right of the printer and is used to detect the edges of the paper to determine the paper dimensions and start position.
This sensor is also the tool used to detect the position of printed lines to perform calibrations Paper Advance calibration and printhead alignment. The Line Sensor is a reflective tool that generates a beam of LED light, whose reflection is detected by a luminance sensor. The signal from this sensor is used to determine the position of lines or paper edge according to the position of the Carriage. If this cover becomes dirty, the signal to detect edges or lines will be affected, which could cause intermittent issues during the paper load.
It can also detect printed lines from short signals when the sensor crosses the lines:. In manufacturing, the anti-rotation rail area in which the PRS cam slides is adjusted to calibrate the nozzle plate position of the printhead, at around 1. This calibration is not service-adjustable and should remain constant throughout the printer's life. As there are different paper thicknesses, the printer is able to rotate this sliding cam automatically to three different positions, changing the PRS distance to accommodate it to the appropriate printing distance.
This rotation is performed by taking the Carriage to a feature on the left-hand side of the scan axis, different side movements of the Carriage at different speeds allow this feature to grab and rotate the cam accordingly. The Cam has three different areas for three different PRS adjustments. Back part of the Carriage with auto-PPS cam, after being activated in position 1. The encoder strip tension is also fixed by a tensioning spring. However, there is a mechanism to hold it in position after the spring places the strip at one specific tension.
This is to prevent the spring from continually applying force over the encoder strip; which, over time and temperature changes, could make it creep. NOTE: When assembling the encoder strip, ensure that it is placed in the right orientation using the smiling symbol located on the sides of the encoder strip. NOTE: Due to the proximity of the encoder strip to the greased sliding rod, it is easy to dirty the strip with grease when performing any repair operation in the area.
Please clean any grease from the encoder strip if necessary. A dry cloth can be used for this purpose, to prevent any deformation or strain on the encoder strip while performing the cleaning.
The printer contains several electronics boards and electrical and electronic components in different locations. Located in the front panel, it is used to power the printer on and off. The standard wiring used in the printer is Flat Flexible Cables FFCs , to interconnect all boards including sensors and encoders and distributed cables for power signals to the motors.
NOTE: It is important to bear in mind that FFCs are relatively delicate, so please ensure cable connectors are not touched or dirtied during manipulation for assembly and disassembly operations.
NOTE: Ensure that you are properly grounded for any electronics or wiring manipulation. The Main PCA is located on the left-hand side of the printer.
The internal clock is used to remember the actual date, used for cartridge life counting and warranty accounting. It is a customized device designed to interact with the main electronics, and all the data are appropriately encrypted.
The Bundle Board is located on the right-hand side of the printer, this board includes a driver ASIC to control and manage the motor, encoder, and sensors located on the right-hand side of the printer.
The following diagram describes the connections between components and electronic boards, the voltage, and the type of data line. If all is in order paper loaded, all ink components installed, and no file errors , there are still reasons why a file you have sent from your computer may not start printing when expected:.
You may have an electrical power problem. If there is no activity at all from the printer, and the front panel does not respond, check that the power cord is connected correctly and that there is power available at the socket.
You may be experiencing unusual electromagnetic phenomena, such as strong electromagnetic fields or severe electrical disturbances, which can cause the printer to behave strangely or even stop working.
In this case, turn off the printer using the power key on the front panel and unplug the power cord, wait until the electromagnetic environment has returned to normal, then turn it on again. If you still experience problems, please contact your customer service representative. You may not have installed in your computer the correct driver for your printer. If you are printing on a sheet, you must specify Printer Autoselect or Single-Sheet or Multi-Sheet Tray as the paper source in your printer driver.
Ask the customer to unplug and plug in the power cord. The customer should check when the power cord is plugged in that the front panel is illuminated white for a few moments, after which the printer should start the initialization process. If the front panel is still blank does not show a flashing white screen , and the printer does not start up, then ask the customer to hold down the Power key for a few seconds and ask to check whether the Power LED button turns orange while the key is held down.
If the customer does not see the orange light, no power is reaching the printer; ask to check that the power cord is correctly plugged in.
If the problem persists, there is a problem with the power supply. Arrange a service engineer visit to replace the Power Supply, see Power Supply on page If the customer sees the orange light, ask to unplug and plug in the power cord and to listen and wait for around 30 seconds for the printer to make a beeping sound.
Three beeps mean that the Front Panel has failed or the Front Panel cable is disconnected or damaged. Arrange a service engineer visit to check the cable and replace the Front Panel if needed, see Front Panel on page One long beep means an electronic problem.
Arrange for a service engineer visit to replace the Main PCA. If the printer initializes and the Carriage moves but the front panel is still blank, the Front Panel should be replaced, see Front Panel on page Error messages are generally used to report internal system errors.
The following pages contain a list of system error codes and their respective descriptions and recommended corrective actions. Try only one recommended action at a time, in the order that they appear, and check whether the error code has disappeared.
Advisory error messages communicate that some action must be performed, such as adding paper or clearing a paper jam. Take the appropriate action to continue printing. If the paper size is correct, check that the line sensor is OK by running the Line Sensor diagnostic from the Support Menu. This occurs when trying to load the paper. There is no need to turn off the printer. Ask the customer to retrieve the Error History, see 1.
Ask the customer which of these 2 errors are logged:. Severe error messages inform you of a device failure. Some of these messages can be cleared by pressing the Power button to turn off the printer, and then pressing it again to turn the printer back on.
If a severe error persists, service is required. The two first fields before the : are the service part and the service index if there is more than one, as in PCAs or motors. These two fields can give guidance as to the most appropriate course of action if this error code is displayed. This section describes each of the severe errors that may be encountered while using the printer, and provides the diagnostic method and the actions required to solve the problem detected.
For a call agent to solve remotely with the customer. If necessary, for an onsite service engineer to solve. NOTE: When more than one component could be affected by the system error, replace one component at a time and check whether the error has gone before replacing another component.
Do not replace two electronic parts at same time! Using this procedure you will be able to determine exactly which component failed. It happens when the MPCA communication fails. To troubleshoot this error, see The Front Panel is blank the printer does not start on page Remove covers and check that all the cables in the MPCA are correctly connected, and that none of them are damaged.
If any cable is disconnected then reconnect it, and power on the printer again to check if the error message has disappeared. Important note: If any cable is damaged replace the cable:. See Update the firmware on page See the user's guide. See Main PCA on page for the installation instructions. Switch the power off and disconnect the power cord. Reconnect the power cord and power on the printer. The call agent should arrange a service engineer visit to change the Bundle PCA and follow steps below on Onsite Troubleshooting:.
If a different system error is displayed then the call agent should perform the applicable troubleshooting procedure. Remove covers and check that all the cables in the Bundle PCA and associated parts are correctly connected, and that none of them is damaged.
If any cable is disconnected then reconnect it, and power on the printer again to check whether the system error has disappeared. Important note: If any cable is damaged then order a Cable Service Kit:.
If any cable is disconnected then reconnect it, and power on the printer again. Replace the Carriage, see Carriage and Belt on page No calibrations needed, but the PMK 1 should be reset, see 3.
The call agent asks the customer to go to the Support Menu by pressing the Power key. If yes, the call agent should arrange a service engineer visit to replace the RTC battery by.
Switch on the printer and go to Extended Support Menu. Set the correct date and time. This error never appears in the Front Panel, it is only logged into the Error History, and is. The Front Panel is blank the printer does not start on page Reconnect the power cord and power on.
The call agent should arrange a service engineer visit to change the Service Station, and follow. If a different system error is displayed then the call agent should perform the applicable. Important note: If any cable is disconnected then. Welcome to ManualMachine. We have sent a verification link to to complete your registration. Log In Sign Up. Forgot password? Enter your email address and check your inbox.
Please check your email for further instructions. Enter a new password. DesignJet T This document contains proprietary 1st edition, August information that is protected by copyright. All rights are reserved.
No part of this document may be photocopied, reproduced, or translated to another language without the prior written consent of Hewlett-Packard Company.
The information contained in this The procedures described in this manual are to document is subject to change without be performed by HP-qualified service notice. Electrostatic Discharge See the beginning of Chapter 4's Introduction on page of this manual, for precautions you should take to prevent damage to the printer circuits from electrostatic discharge.
Safety Symbols General definitions of safety symbols are given immediately after the table of contents. CAUTION The Caution symbol calls attention to an operating procedure, practice, or the like, which, if not correctly performed or adhered to, could result in damage to or destruction of part or all of the printer.
ENWW iii. Readership The procedures described in this service manual are to be performed by HP Certified service personnel only. Part numbers Part numbers for printer service parts are located in Parts and diagrams on page
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