Chapter Advanced operation (key-operator mode) This chapter gives an overview of functions for the advanced user: ! Overview of key-operator functions ! Quality Control ! Preventive maintenance schedule ! Cleaning the exterior ! Cleaning the print head ! Troubleshooting checklist 3
DRYSTAR 5302 USER MANUAL Overview of key-operator functions The key-operator menus make it possible to use the Drystar 5302 advanced functions. These functions are described in detail in the Drystar 5302 Reference manual. For general information on the key functions of the Drystar 5302, refer to ‘The user interface’ on page 20. Overview The Drystar 5302 features the following functions on the main menu level of the key-operator mode: Menu item Page (Ref. Man.
DRYSTAR 5302 USER MANUAL Quality Control In order to establish and maintain consistent image quality, a regular evaluation of image quality is advised. The Drystar 5302 contains an automatic QC feature that has been designed to comply with the grayscale reproduction constancy test, according to the international standard IEC 1223-2-4. Local Regulations may require other procedures.
DRYSTAR 5302 USER MANUAL Establishing the reference values and verifying image quality After installation of a new Drystar 5302 and before initial use you must establish Quality Control aim values. These values will be used as the base line for comparison when daily Quality Control is done. These values should be determined again after major service, repair or software update. The following Quality Control aim values must be determined: • The daily operating density levels.
DRYSTAR 5302 USER MANUAL Establishing the daily operating reference density levels This procedure enables you to establish the base line values for: • Low density • Mid density • High density The densitometer of the Drystar 5302 is calibrated at installation. Authorized service personnel should recalibrate the densitometer annually or after major service or repair. To establish the daily operating levels, proceed as follows: 1 Press the Key-operator key to enter the Key-operator mode.
DRYSTAR 5302 USER MANUAL The displayed values represent the following steps on the test film: • Low density: the density of the Low density step. Target: 0.4. • Mid density: the density value of the Mid density step. Target: 1.2. • High density: the density value of the High density step. Target: 2.0. If the mid density value does not meet or exceeds the recommended values, the reason must be found and the problem solved before any further clinical films can be printed.
DRYSTAR 5302 USER MANUAL 7 Press the ok key to return to the main menu. 8 Repeat 1 steps through 7 once a day for five consecutive days, as indicated on the Drystar 5302 Chart 1. 9 Calculate the average value of the densities from the five images. These values represent operating levels, or aim values, for each density. 10 Record the respective aim (average) values as the ‘Operating levels’ on the Drystar 5302 Charts 2a and 2b (‘daily Drystar 5302 control chart’).
DRYSTAR 5302 USER MANUAL Establishing the image geometry reference values 1 Print the QC test image or use the previously printed test image.
DRYSTAR 5302 USER MANUAL 3 Record these values as reference dimensions A ref and B ref on the Drystar 5302 Chart 4 (‘Drystar 5302 Geometric Consistency Control Chart’). Refer to ‘Quality Control Charts’ on page 75. These charts will be used for the annual quality test. For more information, refer to ‘Performing the Annual QC tests’ on page 58. 4 Save this film for future reference.
DRYSTAR 5302 USER MANUAL Verifying Acceptable Spatial Resolution, Artifact Levels and Low Contrast Visibility Good viewing conditions are important for the correct interpretation of both diagnostic and test images. Make sure that the lightbox intensity (luminance) is between 2000 and 4000 cd/m² (4500 and 6500 °K). Use a magnifying glass and use shutters to collimate. Make sure the ambient light is low.
DRYSTAR 5302 USER MANUAL Performing quality control (QC) tests The following procedures must be performed daily, weekly or annually as indicated. The reason for performing quality control tests is to determine if any significant image quality variation or deterioration has occurred which may require corrective action. Comparing the results of the tests with the reference values previously established does this.
DRYSTAR 5302 USER MANUAL After the image is printed, the system will display the optical density values: QC Internal Density readings Low density :0.19 Mid density :1.25 High density: 1.78 (copy on control chart) Key-operator QC ok 5 Record the density values on the Drystar 5302 Charts 2A and 2B (Drystar 5302 Daily Density Control Chart’). Also record the date and time of the test on the charts and on the QC test images. Refer to ‘Quality Control Charts’ on page 75. 6 Press the ok key.
DRYSTAR 5302 USER MANUAL Performing the Weekly QC tests Spatial Resolution, Artifact Test and Low Contrast Visibility To identify artifacts and verify spatial resolution you must perform the following test weekly or as needed for troubleshooting image quality problems. Good viewing conditions are important for the correct interpretation of both diagnostic and test images. Make sure that the lightbox intensity (luminance) is between 2000 and 4000 cd/m² (4500 and 6500 °K).
DRYSTAR 5302 USER MANUAL Performing the Annual QC tests Geometric Consistency Test To be able to notice fluctuations in image size and aspect ratio, you must perform this procedure once a year. 1 First, perform the daily test. 2 Use the QC test image of the weekly test and measure the dimensions A and B of the geometric square. Refer to ‘Establishing the image geometry reference values’ on page 52.
DRYSTAR 5302 USER MANUAL Preventive maintenance schedule The Drystar 5302 is designed for trouble-free service. Maintenance and cleaning involve only some minor user tasks. Refer to the following pages for the appropriate cleaning procedure. Interval What to do? Page Ad hoc ‘Cleaning the exterior’ 60 When image quality tends to degrade. An appropriate warning message is displayed.
DRYSTAR 5302 USER MANUAL Cleaning the exterior 1 Switch off the Drystar 5302 by following the procedure as described in ‘Switching off the Drystar 5302’ on page 32. 2 Remove the power plug from the socket. 3 Wipe the exterior of the printer with a clean, soft, damp cloth. Use a mild soap or detergent if required but never use an ammonia–based cleaner. Be careful not to get any liquid in the power cord port.
DRYSTAR 5302 USER MANUAL Cleaning the print head Print head cleaning must be done when image quality problems occur. To clean the print head: 1 Press the Key-operator key to enter the key-operator mode. 2 On the key-operator main menu, press the Down key five times, followed by the Confirm key to select ‘Calibration’. 1 2 3 4 5 6 7 8 9 3 Show settings KO Change settings Print image Save configuration Restore config.
DRYSTAR 5302 USER MANUAL 5 Open the top cover. 6 As soon as the top cover is opened, the ‘Thermal head cleaning’ screen continues giving the following instructions: THERMAL HEAD CA CLEANING Clean thermal head Close top cover 7 62 Open the hold-down bracket.
DRYSTAR 5302 USER MANUAL 8 Open the print head unit. The print head unit can be warm. 9 Locate and check on sight the print head resistor line. Be careful not to touch the print head resistor line with your fingers.
DRYSTAR 5302 USER MANUAL 10 Clean the print head resistor line. Gently pass over the resistor line a few times with a lint free cloth, slightly moistened with Isopropyl alcohol or Ethanol. Do this only in one direction, i.e. from left to right, without lifting the cloth. Do not apply any pressure on the print head because this pressure may cause damage on the interconnections underneath the print head. 11 Close the print head unit, the hold-down bracket and finally the top cover.
DRYSTAR 5302 USER MANUAL Troubleshooting checklist The table below lists some general problems which can occur when working with the Drystar 5302. Refer to the appropriate pages of the Drystar 5302 Reference manual. • The Drystar 5302 does not print. Action Page (Ref. Man.
DRYSTAR 5302 USER MANUAL 66 Advanced operation (key-operator mode) 2831A EN 20041201
Appendix Equipment information sheet A
DRYSTAR 5302 USER MANUAL Specifications Product description Type of product Printer Commercial name Drystar 5302 Original seller/manufacturer Agfa-Gevaert N.V. Labelling TÜV-, cULus-Certification Mark, CE-marking CCC Mark Dimensions Dimensions (approx. values in cm) Weight • Unpacked: width tbd, length tbd, height tbd • Packed: width tbd, length tbd, height tbd • Unpacked: approx. 90 kg • Packed: approx.
DRYSTAR 5302 USER MANUAL Network connectivity Ethernet / connectors RJ45 twisted pair for 10/100Base-TX; Serial RS232 connection Network protocols (TCP/IP services) FTP, Telnet, HTTP, SMTP Image formats Postscript DICOM (Default) TIFF Not available Power consumption - heat dissipation During operation 250 W - 900 kJ/h In standby 70 W - 252 kJ/h Peak power (absolute max.
DRYSTAR 5302 USER MANUAL Environmental transport conditions Climate conditions for transport are in accordance with EN60721-3-2-class 2K4. Temperature Between -40°C and 70°C (transport) Relative humidity not combined with rapid temperature changes 95% at +45°C Noise emission (method of measurement in accordance with DIN 45635 part 19) During operation Max. 64 dBA In standby Max.
DRYSTAR 5302 USER MANUAL Imaging Array - Diagnostic area Film size 8x10” 8” dimensions in pixels 8” dimensions in mm 10” dimensions in pixels 10” dimensions in mm Diagnostic area 2375.76 188.64 3072.24 243.94 Film size 10x12” 10” dimensions in pixels 10” dimensions in mm 12” dimensions in pixels 12” dimensions in mm Diagnostic area 3072.24 243.94 3652.84 290.
DRYSTAR 5302 USER MANUAL Viewing the System info area on a film On the top right corner of each film, a “System info” area will be printed. This info can only be read using a magnifying glass. Film Black border Diagnostic area Clear border Transport direction System info area The System info area contains info about: • Printer: (serial number, densitometer info, film counts, software version, etc.), • Controller (image source, date, time, etc.).
DRYSTAR 5302 USER MANUAL Options and accessories Mobile / Earthquake provisions Hardware The OPTIONAL mobile/earthquake installation kit allows you to use the Drystar 5302 in a van, or to use it in unstable environment. It contains the necessary equipment to fix the printer onto a table and has provisions for easy service access. The mobile/earthquake installation kit is delivered with the necessary mounting instructions. Software No additional software for mobile/earthquake use is required.
DRYSTAR 5302 USER MANUAL Connectivity Connectivity with Agfa equipment • Connected via VIPS or CR QS • ADC Compact • ADC Compact Plus • ADC Solo • CR 25.0 • CR 75.0 • • • • • ADR Thorax Impax MG3000 Paxport MULTIFLEX For more information, contact your Agfa representative. Connectivity with non-Agfa equipment Drystar 5302 is a Dicom printer and can therefore be connected to all modalities supporting Dicom.
Appendix Quality Control Charts B
DRYSTAR 5302 USER MANUAL Chart 1 Drystar 5302: Determination of Operating Levels Imager Type: __________ Serial #: _________________ Date ____________________ Film Type: ____________ Emulsion #: ______________ Densitometer Internal: _________________ (default selection) External: Type ____________ Serial #: _________________ Step 1: Print QC Test images on five consecutive days. Record the optical densities measurements in the tables below.
DRYSTAR 5302 USER MANUAL Chart 2A Drystar 5302 Daily Density Control Chart Imager Type: __________ Serial #: _____________ Film Type:____________ Emul #:___________ Densitometer Internal: ____________________ (default selection) External: Type _______________ Serial #:________________ Da te : Initia ls: Upper Control limit = +0.10 Low Density Low Density Aim Lower Control Limit = -0.10 Upper Control limit = +0.20 Mid Density Mid Density Aim (High - Low) Lower Control Limit = -0.
DRYSTAR 5302 USER MANUAL Chart 2B Drystar 5302 Daily Density Control Chart Imager Type: __________ Serial #: _____________ Film Type:____________ Emul #:___________ Densitometer Internal: ____________________ (default selection) External: Type _______________ Serial #:________________ Upper Control limit = +0.20 High Density High Density Aim Lower Control Limit = -0.
DRYSTAR 5302 USER MANUAL Chart 3 Drystar 5302 Artifacts and Spatial Resolution Control Chart Test Frequency: Weekly Drystar 5302 Serial # _____________ Initial Reference Test Date Initial Reference Artifacts Initial Reference Dot Visibility Initial Reference Low Contrast Month Day Artifacts Visibility of all Dots Low Contrast Visibility Month Day Artifacts Visibility of all Dots Low Contrast Visibility Month Day Artifacts Visibility of all Dots Low Contrast Visibility Month Day Artifacts Visibility of
DRYSTAR 5302 USER MANUAL Chart 4 Drystar 5302 Geometric Consistency Control Chart Test Frequency: Annually or as required Reference Dimensions Date: Measured Dimensions Date: A: Consistency Aspect Ratio A/Aref A/B Bref B: B/Bref Reference Dimensions Date: Measured Dimensions Date: A: Consistency Aspect Ratio A/Aref A/B B: B/Bref Aref Aref Bref 80 Drystar 5302 Serial # ______________ Quality Control Charts 2831A EN 20041201
DRYSTAR 5302 USER MANUAL 2831A EN 20041201 Quality Control Charts 81
Printed in Belgium Published by Agfa-Gevaert N.V.
